Merge pull request #300 from databasus/develop

FIX (ci \ cd): Add build step after lint step for frontend to catch b…

.github/workflows/ci-release.yml

@@ -9,25 +9,26 @@ on:
 
 jobs:
   lint-backend:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
+    container:
+      image: golang:1.24.9
+      volumes:
+        - /runner-cache/go-pkg:/go/pkg/mod
+        - /runner-cache/go-build:/root/.cache/go-build
+        - /runner-cache/golangci-lint:/root/.cache/golangci-lint
+        - /runner-cache/apt-archives:/var/cache/apt/archives
     steps:
       - name: Check out code
         uses: actions/checkout@v4
 
-      - name: Set up Go
-        uses: actions/setup-go@v5
-        with:
-          go-version: "1.24.4"
+      - name: Configure Git for container
+        run: |
+          git config --global --add safe.directory "$GITHUB_WORKSPACE"
 
-      - name: Cache Go modules
-        uses: actions/cache@v4
-        with:
-          path: |
-            ~/go/pkg/mod
-            ~/.cache/go-build
-          key: ${{ runner.os }}-go-${{ hashFiles('backend/go.sum') }}
-          restore-keys: |
-            ${{ runner.os }}-go-
+      - name: Download Go modules
+        run: |
+          cd backend
+          go mod download
 
       - name: Install golangci-lint
         run: |
@@ -63,8 +64,6 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: "20"
-          cache: "npm"
-          cache-dependency-path: frontend/package-lock.json
 
       - name: Install dependencies
         run: |
@@ -82,6 +81,11 @@ jobs:
           cd frontend
           npm run lint
 
+      - name: Build frontend
+        run: |
+          cd frontend
+          npm run build
+
   test-frontend:
     runs-on: ubuntu-latest
     needs: [lint-frontend]
@@ -93,8 +97,6 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: "20"
-          cache: "npm"
-          cache-dependency-path: frontend/package-lock.json
 
       - name: Install dependencies
         run: |
@@ -107,44 +109,32 @@ jobs:
           npm run test
 
   test-backend:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     needs: [lint-backend]
+    container:
+      image: golang:1.24.9
+      options: --privileged -v /var/run/docker.sock:/var/run/docker.sock --add-host=host.docker.internal:host-gateway
+      volumes:
+        - /runner-cache/go-pkg:/go/pkg/mod
+        - /runner-cache/go-build:/root/.cache/go-build
+        - /runner-cache/apt-archives:/var/cache/apt/archives
     steps:
-      - name: Free up disk space
+      - name: Install Docker CLI
         run: |
-          echo "Disk space before cleanup:"
-          df -h
-          # Remove unnecessary pre-installed software
-          sudo rm -rf /usr/share/dotnet
-          sudo rm -rf /usr/local/lib/android
-          sudo rm -rf /opt/ghc
-          sudo rm -rf /opt/hostedtoolcache/CodeQL
-          sudo rm -rf /usr/local/share/boost
-          sudo rm -rf /usr/share/swift
-          # Clean apt cache
-          sudo apt-get clean
-          # Clean docker images (if any pre-installed)
-          docker system prune -af --volumes || true
-          echo "Disk space after cleanup:"
-          df -h
+          apt-get update -qq
+          apt-get install -y -qq docker.io docker-compose netcat-openbsd wget
 
       - name: Check out code
         uses: actions/checkout@v4
 
-      - name: Set up Go
-        uses: actions/setup-go@v5
-        with:
-          go-version: "1.24.4"
+      - name: Configure Git for container
+        run: |
+          git config --global --add safe.directory "$GITHUB_WORKSPACE"
 
-      - name: Cache Go modules
-        uses: actions/cache@v4
-        with:
-          path: |
-            ~/go/pkg/mod
-            ~/.cache/go-build
-          key: ${{ runner.os }}-go-${{ hashFiles('backend/go.sum') }}
-          restore-keys: |
-            ${{ runner.os }}-go-
+      - name: Download Go modules
+        run: |
+          cd backend
+          go mod download
 
       - name: Create .env file for testing
         run: |
@@ -156,14 +146,16 @@ jobs:
           DEV_DB_PASSWORD=Q1234567
           #app
           ENV_MODE=development
-          # db
-          DATABASE_DSN=host=localhost user=postgres password=Q1234567 dbname=databasus port=5437 sslmode=disable
-          DATABASE_URL=postgres://postgres:Q1234567@localhost:5437/databasus?sslmode=disable
+          # db - using 172.17.0.1 to access host from container
+          DATABASE_DSN=host=172.17.0.1 user=postgres password=Q1234567 dbname=databasus port=5437 sslmode=disable
+          DATABASE_URL=postgres://postgres:Q1234567@172.17.0.1:5437/databasus?sslmode=disable
           # migrations
           GOOSE_DRIVER=postgres
-          GOOSE_DBSTRING=postgres://postgres:Q1234567@localhost:5437/databasus?sslmode=disable
+          GOOSE_DBSTRING=postgres://postgres:Q1234567@172.17.0.1:5437/databasus?sslmode=disable
           GOOSE_MIGRATION_DIR=./migrations
-          # testing
+          # testing 
+          TEST_LOCALHOST=172.17.0.1
+          IS_SKIP_EXTERNAL_RESOURCES_TESTS=true
           # to get Google Drive env variables: add storage in UI and copy data from added storage here 
           TEST_GOOGLE_DRIVE_CLIENT_ID=${{ secrets.TEST_GOOGLE_DRIVE_CLIENT_ID }}
           TEST_GOOGLE_DRIVE_CLIENT_SECRET=${{ secrets.TEST_GOOGLE_DRIVE_CLIENT_SECRET }}
@@ -221,6 +213,14 @@ jobs:
           TEST_MONGODB_60_PORT=27060
           TEST_MONGODB_70_PORT=27070
           TEST_MONGODB_82_PORT=27082
+          # Valkey (cache) - using 172.17.0.1
+          VALKEY_HOST=172.17.0.1
+          VALKEY_PORT=6379
+          VALKEY_USERNAME=
+          VALKEY_PASSWORD=
+          VALKEY_IS_SSL=false
+          # Host for test databases (container -> host)
+          TEST_DB_HOST=172.17.0.1
           EOF
 
       - name: Start test containers
@@ -233,25 +233,30 @@ jobs:
           # Wait for main dev database
           timeout 60 bash -c 'until docker exec dev-db pg_isready -h localhost -p 5437 -U postgres; do sleep 2; done'
 
-          # Wait for test databases
-          timeout 60 bash -c 'until nc -z localhost 5000; do sleep 2; done'
-          timeout 60 bash -c 'until nc -z localhost 5001; do sleep 2; done'
-          timeout 60 bash -c 'until nc -z localhost 5002; do sleep 2; done'
-          timeout 60 bash -c 'until nc -z localhost 5003; do sleep 2; done'
-          timeout 60 bash -c 'until nc -z localhost 5004; do sleep 2; done'
-          timeout 60 bash -c 'until nc -z localhost 5005; do sleep 2; done'
+          # Wait for Valkey (cache)
+          echo "Waiting for Valkey..."
+          timeout 60 bash -c 'until docker exec dev-valkey valkey-cli ping 2>/dev/null | grep -q PONG; do sleep 2; done'
+          echo "Valkey is ready!"
+
+          # Wait for test databases (using 172.17.0.1 from container)
+          timeout 60 bash -c 'until nc -z 172.17.0.1 5000; do sleep 2; done'
+          timeout 60 bash -c 'until nc -z 172.17.0.1 5001; do sleep 2; done'
+          timeout 60 bash -c 'until nc -z 172.17.0.1 5002; do sleep 2; done'
+          timeout 60 bash -c 'until nc -z 172.17.0.1 5003; do sleep 2; done'
+          timeout 60 bash -c 'until nc -z 172.17.0.1 5004; do sleep 2; done'
+          timeout 60 bash -c 'until nc -z 172.17.0.1 5005; do sleep 2; done'
 
           # Wait for MinIO
-          timeout 60 bash -c 'until nc -z localhost 9000; do sleep 2; done'
+          timeout 60 bash -c 'until nc -z 172.17.0.1 9000; do sleep 2; done'
 
           # Wait for Azurite
-          timeout 60 bash -c 'until nc -z localhost 10000; do sleep 2; done'
+          timeout 60 bash -c 'until nc -z 172.17.0.1 10000; do sleep 2; done'
 
           # Wait for FTP
-          timeout 60 bash -c 'until nc -z localhost 7007; do sleep 2; done'
+          timeout 60 bash -c 'until nc -z 172.17.0.1 7007; do sleep 2; done'
 
           # Wait for SFTP
-          timeout 60 bash -c 'until nc -z localhost 7008; do sleep 2; done'
+          timeout 60 bash -c 'until nc -z 172.17.0.1 7008; do sleep 2; done'
 
           # Wait for MySQL containers
           echo "Waiting for MySQL 5.7..."
@@ -310,67 +315,66 @@ jobs:
           mkdir -p databasus-data/backups
           mkdir -p databasus-data/temp
 
-      - name: Cache PostgreSQL client tools
-        id: cache-postgres
-        uses: actions/cache@v4
-        with:
-          path: /usr/lib/postgresql
-          key: postgres-clients-12-18-v1
-
-      - name: Cache MySQL client tools
-        id: cache-mysql
-        uses: actions/cache@v4
-        with:
-          path: backend/tools/mysql
-          key: mysql-clients-57-80-84-9-v1
-
-      - name: Cache MariaDB client tools
-        id: cache-mariadb
-        uses: actions/cache@v4
-        with:
-          path: backend/tools/mariadb
-          key: mariadb-clients-106-121-v1
-
-      - name: Cache MongoDB Database Tools
-        id: cache-mongodb
-        uses: actions/cache@v4
-        with:
-          path: backend/tools/mongodb
-          key: mongodb-database-tools-100.10.0-v1
-
-      - name: Install MySQL dependencies
+      - name: Install database client dependencies
         run: |
-          sudo apt-get update -qq
-          sudo apt-get install -y -qq libncurses6
-          sudo ln -sf /usr/lib/x86_64-linux-gnu/libncurses.so.6 /usr/lib/x86_64-linux-gnu/libncurses.so.5
-          sudo ln -sf /usr/lib/x86_64-linux-gnu/libtinfo.so.6 /usr/lib/x86_64-linux-gnu/libtinfo.so.5
+          apt-get update -qq
+          apt-get install -y -qq libncurses6 libpq5
+          ln -sf /usr/lib/x86_64-linux-gnu/libncurses.so.6 /usr/lib/x86_64-linux-gnu/libncurses.so.5 || true
+          ln -sf /usr/lib/x86_64-linux-gnu/libtinfo.so.6 /usr/lib/x86_64-linux-gnu/libtinfo.so.5 || true
 
-      - name: Install PostgreSQL, MySQL, MariaDB and MongoDB client tools
-        if: steps.cache-postgres.outputs.cache-hit != 'true' || steps.cache-mysql.outputs.cache-hit != 'true' || steps.cache-mariadb.outputs.cache-hit != 'true' || steps.cache-mongodb.outputs.cache-hit != 'true'
-        run: |
-          chmod +x backend/tools/download_linux.sh
-          cd backend/tools
-          ./download_linux.sh
-
-      - name: Setup PostgreSQL symlinks (when using cache)
-        if: steps.cache-postgres.outputs.cache-hit == 'true'
+      - name: Setup PostgreSQL, MySQL and MariaDB client tools from pre-built assets
         run: |
           cd backend/tools
-          mkdir -p postgresql
+
+          # Create directory structure
+          mkdir -p postgresql mysql mariadb mongodb/bin
+
+          # Copy PostgreSQL client tools (12-18) from pre-built assets
           for version in 12 13 14 15 16 17 18; do
-            version_dir="postgresql/postgresql-$version"
-            mkdir -p "$version_dir/bin"
-            pg_bin_dir="/usr/lib/postgresql/$version/bin"
-            if [ -d "$pg_bin_dir" ]; then
-              ln -sf "$pg_bin_dir/pg_dump" "$version_dir/bin/pg_dump"
-              ln -sf "$pg_bin_dir/pg_dumpall" "$version_dir/bin/pg_dumpall"
-              ln -sf "$pg_bin_dir/psql" "$version_dir/bin/psql"
-              ln -sf "$pg_bin_dir/pg_restore" "$version_dir/bin/pg_restore"
-              ln -sf "$pg_bin_dir/createdb" "$version_dir/bin/createdb"
-              ln -sf "$pg_bin_dir/dropdb" "$version_dir/bin/dropdb"
-            fi
+            mkdir -p postgresql/postgresql-$version
+            cp -r ../../assets/tools/x64/postgresql/postgresql-$version/bin postgresql/postgresql-$version/
           done
 
+          # Copy MySQL client tools (5.7, 8.0, 8.4, 9) from pre-built assets
+          for version in 5.7 8.0 8.4 9; do
+            mkdir -p mysql/mysql-$version
+            cp -r ../../assets/tools/x64/mysql/mysql-$version/bin mysql/mysql-$version/
+          done
+
+          # Copy MariaDB client tools (10.6, 12.1) from pre-built assets
+          for version in 10.6 12.1; do
+            mkdir -p mariadb/mariadb-$version
+            cp -r ../../assets/tools/x64/mariadb/mariadb-$version/bin mariadb/mariadb-$version/
+          done
+
+          # Make all binaries executable
+          chmod +x postgresql/*/bin/*
+          chmod +x mysql/*/bin/*
+          chmod +x mariadb/*/bin/*
+
+          echo "Pre-built client tools setup complete"
+
+      - name: Install MongoDB Database Tools
+        run: |
+          cd backend/tools
+
+          # MongoDB Database Tools must be downloaded (not in pre-built assets)
+          # They are backward compatible - single version supports all servers (4.0-8.0)
+          MONGODB_TOOLS_URL="https://fastdl.mongodb.org/tools/db/mongodb-database-tools-debian12-x86_64-100.10.0.deb"
+
+          echo "Downloading MongoDB Database Tools..."
+          wget -q "$MONGODB_TOOLS_URL" -O /tmp/mongodb-database-tools.deb
+
+          echo "Installing MongoDB Database Tools..."
+          dpkg -i /tmp/mongodb-database-tools.deb || apt-get install -f -y --no-install-recommends
+
+          # Create symlinks to tools directory
+          ln -sf /usr/bin/mongodump mongodb/bin/mongodump
+          ln -sf /usr/bin/mongorestore mongodb/bin/mongorestore
+
+          rm -f /tmp/mongodb-database-tools.deb
+          echo "MongoDB Database Tools installed successfully"
+
       - name: Verify MariaDB client tools exist
         run: |
           cd backend/tools
@@ -415,10 +419,28 @@ jobs:
         if: always()
         run: |
           cd backend
+          # Stop and remove containers (keeping images for next run)
           docker compose -f docker-compose.yml.example down -v
 
+          # Clean up all data directories created by docker-compose
+          echo "Cleaning up data directories..."
+          rm -rf pgdata || true
+          rm -rf valkey-data || true
+          rm -rf mysqldata || true
+          rm -rf mariadbdata || true
+          rm -rf temp/nas || true
+          rm -rf databasus-data || true
+
+          # Also clean root-level databasus-data if exists
+          cd ..
+          rm -rf databasus-data || true
+
+          echo "Cleanup complete"
+
   determine-version:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
+    container:
+      image: node:20
     needs: [test-backend, test-frontend]
     if: ${{ github.ref == 'refs/heads/main' && !contains(github.event.head_commit.message, '[skip-release]') }}
     outputs:
@@ -431,10 +453,9 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Set up Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: "20"
+      - name: Configure Git for container
+        run: |
+          git config --global --add safe.directory "$GITHUB_WORKSPACE"
 
       - name: Install semver
         run: npm install -g semver
@@ -448,6 +469,7 @@ jobs:
 
       - name: Analyze commits and determine version bump
         id: version_bump
+        shell: bash
         run: |
           CURRENT_VERSION="${{ steps.current_version.outputs.current_version }}"
           LATEST_TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "v0.0.0")
@@ -467,7 +489,7 @@ jobs:
           HAS_FIX=false
           HAS_BREAKING=false
 
-          # Analyze each commit
+          # Analyze each commit - USE PROCESS SUBSTITUTION to avoid subshell variable scope issues
           while IFS= read -r commit; do
             if [[ "$commit" =~ ^FEATURE ]]; then
               HAS_FEATURE=true
@@ -485,7 +507,7 @@ jobs:
               HAS_BREAKING=true
               echo "Found BREAKING CHANGE: $commit"
             fi
-          done <<< "$COMMITS"
+          done < <(printf '%s\n' "$COMMITS")
 
           # Determine version bump
           if [ "$HAS_BREAKING" = true ]; then
@@ -511,10 +533,15 @@ jobs:
           fi
 
   build-only:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     needs: [test-backend, test-frontend]
     if: ${{ github.ref == 'refs/heads/main' && contains(github.event.head_commit.message, '[skip-release]') }}
     steps:
+      - name: Clean workspace
+        run: |
+          sudo rm -rf "$GITHUB_WORKSPACE"/* || true
+          sudo rm -rf "$GITHUB_WORKSPACE"/.* || true
+
       - name: Check out code
         uses: actions/checkout@v4
 
@@ -543,12 +570,17 @@ jobs:
             databasus/databasus:${{ github.sha }}
 
   build-and-push:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     needs: [determine-version]
     if: ${{ needs.determine-version.outputs.should_release == 'true' }}
     permissions:
       contents: write
     steps:
+      - name: Clean workspace
+        run: |
+          sudo rm -rf "$GITHUB_WORKSPACE"/* || true
+          sudo rm -rf "$GITHUB_WORKSPACE"/.* || true
+
       - name: Check out code
         uses: actions/checkout@v4
 
@@ -578,21 +610,33 @@ jobs:
             databasus/databasus:${{ github.sha }}
 
   release:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
+    container:
+      image: node:20
     needs: [determine-version, build-and-push]
     if: ${{ needs.determine-version.outputs.should_release == 'true' }}
     permissions:
       contents: write
       pull-requests: write
     steps:
+      - name: Clean workspace
+        run: |
+          rm -rf "$GITHUB_WORKSPACE"/* || true
+          rm -rf "$GITHUB_WORKSPACE"/.* || true
+
       - name: Check out code
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
           token: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Configure Git for container
+        run: |
+          git config --global --add safe.directory "$GITHUB_WORKSPACE"
+
       - name: Generate changelog
         id: changelog
+        shell: bash
         run: |
           NEW_VERSION="${{ needs.determine-version.outputs.new_version }}"
           LATEST_TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "v0.0.0")
@@ -612,6 +656,7 @@ jobs:
           FIXES=""
           REFACTORS=""
 
+          # USE PROCESS SUBSTITUTION to avoid subshell variable scope issues
           while IFS= read -r line; do
             if [ -n "$line" ]; then
               COMMIT_MSG=$(echo "$line" | cut -d'|' -f1)
@@ -645,7 +690,7 @@ jobs:
                 fi
               fi
             fi
-          done <<< "$COMMITS"
+          done < <(printf '%s\n' "$COMMITS")
 
           # Build changelog sections
           if [ -n "$FEATURES" ]; then
@@ -672,17 +717,6 @@ jobs:
             echo EOF
           } >> $GITHUB_OUTPUT
 
-      - name: Update CITATION.cff version
-        run: |
-          VERSION="${{ needs.determine-version.outputs.new_version }}"
-          sed -i "s/^version: .*/version: ${VERSION}/" CITATION.cff
-          sed -i "s/^date-released: .*/date-released: \"$(date +%Y-%m-%d)\"/" CITATION.cff
-          git config user.name "github-actions[bot]"
-          git config user.email "github-actions[bot]@users.noreply.github.com"
-          git add CITATION.cff
-          git commit -m "Update CITATION.cff to v${VERSION}" || true
-          git push || true
-
       - name: Create GitHub Release
         uses: actions/create-release@v1
         env:
@@ -695,16 +729,33 @@ jobs:
           prerelease: false
 
   publish-helm-chart:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
+    container:
+      image: alpine:3.19
+      volumes:
+        - /runner-cache/apk-cache:/etc/apk/cache
     needs: [determine-version, build-and-push]
     if: ${{ needs.determine-version.outputs.should_release == 'true' }}
     permissions:
       contents: read
       packages: write
     steps:
+      - name: Clean workspace
+        run: |
+          rm -rf "$GITHUB_WORKSPACE"/* || true
+          rm -rf "$GITHUB_WORKSPACE"/.* || true
+
+      - name: Install dependencies
+        run: |
+          apk add --no-cache git bash curl
+
       - name: Check out code
         uses: actions/checkout@v4
 
+      - name: Configure Git for container
+        run: |
+          git config --global --add safe.directory "$GITHUB_WORKSPACE"
+
       - name: Set up Helm
         uses: azure/setup-helm@v4
         with:

.pre-commit-config.yaml

@@ -6,14 +6,14 @@ repos:
     hooks:
       - id: frontend-format
         name: Frontend Format (Prettier)
-        entry: powershell -Command "cd frontend; npm run format"
+        entry: bash -c "cd frontend && npm run format"
         language: system
         files: ^frontend/.*\.(ts|tsx|js|jsx|json|css|md)$
         pass_filenames: false
 
       - id: frontend-lint
         name: Frontend Lint (ESLint)
-        entry: powershell -Command "cd frontend; npm run lint"
+        entry: bash -c "cd frontend && npm run lint"
         language: system
         files: ^frontend/.*\.(ts|tsx|js|jsx)$
         pass_filenames: false
@@ -23,7 +23,14 @@ repos:
     hooks:
       - id: backend-format-and-lint
         name: Backend Format & Lint (golangci-lint)
-        entry: powershell -Command "cd backend; golangci-lint fmt; golangci-lint run"
+        entry: bash -c "cd backend && golangci-lint fmt ./internal/... ./cmd/... && golangci-lint run ./internal/... ./cmd/..."
         language: system
         files: ^backend/.*\.go$
-        pass_filenames: false
+        pass_filenames: false
+
+      - id: backend-go-mod-tidy
+        name: Backend Go Mod Tidy
+        entry: bash -c "cd backend && go mod tidy"
+        language: system
+        files: ^backend/.*\.go$
+        pass_filenames: false

CITATION.cff

@@ -32,5 +32,5 @@ keywords:
   - mongodb
   - mariadb
 license: Apache-2.0
-version: 2.20.1
-date-released: "2026-01-04"
+version: 2.21.0
+date-released: "2026-01-05"

Dockerfile

@@ -22,7 +22,7 @@ RUN npm run build
 
 # ========= BUILD BACKEND =========
 # Backend build stage
-FROM --platform=$BUILDPLATFORM golang:1.24.4 AS backend-build
+FROM --platform=$BUILDPLATFORM golang:1.24.9 AS backend-build
 
 # Make TARGET args available early so tools built here match the final image arch
 ARG TARGETOS
@@ -123,6 +123,15 @@ RUN wget -qO- https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add -
   apt-get install -y --no-install-recommends postgresql-17 && \
   rm -rf /var/lib/apt/lists/*
 
+# Install Valkey server from debian repository
+# Valkey is only accessible internally (localhost) - not exposed outside container
+RUN wget -O /usr/share/keyrings/greensec.github.io-valkey-debian.key https://greensec.github.io/valkey-debian/public.key && \
+  echo "deb [signed-by=/usr/share/keyrings/greensec.github.io-valkey-debian.key] https://greensec.github.io/valkey-debian/repo $(lsb_release -cs) main" \
+  > /etc/apt/sources.list.d/valkey-debian.list && \
+  apt-get update && \
+  apt-get install -y --no-install-recommends valkey && \
+  rm -rf /var/lib/apt/lists/*
+
 # ========= Install rclone =========
 RUN apt-get update && \
   apt-get install -y --no-install-recommends rclone && \
@@ -245,7 +254,34 @@ PG_BIN="/usr/lib/postgresql/17/bin"
 # Ensure proper ownership of data directory
 echo "Setting up data directory permissions..."
 mkdir -p /databasus-data/pgdata
+mkdir -p /databasus-data/temp
+mkdir -p /databasus-data/backups
 chown -R postgres:postgres /databasus-data
+chmod 700 /databasus-data/temp
+
+# ========= Start Valkey (internal cache) =========
+echo "Configuring Valkey cache..."
+cat > /tmp/valkey.conf << 'VALKEY_CONFIG'
+port 6379
+bind 127.0.0.1
+protected-mode yes
+save ""
+maxmemory 256mb
+maxmemory-policy allkeys-lru
+VALKEY_CONFIG
+
+echo "Starting Valkey..."
+valkey-server /tmp/valkey.conf &
+VALKEY_PID=\$!
+
+echo "Waiting for Valkey to be ready..."
+for i in {1..30}; do
+    if valkey-cli ping >/dev/null 2>&1; then
+        echo "Valkey is ready!"
+        break
+    fi
+    sleep 1
+done
 
 # Initialize PostgreSQL if not already initialized
 if [ ! -s "/databasus-data/pgdata/PG_VERSION" ]; then

README.md

@@ -2,7 +2,7 @@
   <img src="assets/logo.svg" alt="Databasus Logo" width="250"/>
 
   <h3>Backup tool for PostgreSQL, MySQL and MongoDB</h3>
-  <p>Databasus is a free, open source and self-hosted tool to backup databases. Make backups with different storages (S3, Google Drive, FTP, etc.) and notifications about progress (Slack, Discord, Telegram, etc.). Previously known as Postgresus (see migration guide).</p>
+  <p>Databasus is a free, open source and self-hosted tool to backup databases (with focus on PostgreSQL). Make backups with different storages (S3, Google Drive, FTP, etc.) and notifications about progress (Slack, Discord, Telegram, etc.). Previously known as Postgresus (see migration guide).</p>
   
   <!-- Badges -->
    [![PostgreSQL](https://img.shields.io/badge/PostgreSQL-336791?logo=postgresql&logoColor=white)](https://www.postgresql.org/)

backend/.cursor/rules/codestyle-rule.mdc

@@ -1,152 +0,0 @@
----
-description:
-globs:
-alwaysApply: true
----
-
-Always place private methods to the bottom of file
-
-**This rule applies to ALL Go files including tests, services, controllers, repositories, etc.**
-
-In Go, exported (public) functions/methods start with uppercase letters, while unexported (private) ones start with lowercase letters.
-
-## Structure Order:
-
-1. Type definitions and constants
-2. Public methods/functions (uppercase)
-3. Private methods/functions (lowercase)
-
-## Examples:
-
-### Service with methods:
-
-```go
-type UserService struct {
-    repository *UserRepository
-}
-
-// Public methods first
-func (s *UserService) CreateUser(user *User) error {
-    if err := s.validateUser(user); err != nil {
-        return err
-    }
-    return s.repository.Save(user)
-}
-
-func (s *UserService) GetUser(id uuid.UUID) (*User, error) {
-    return s.repository.FindByID(id)
-}
-
-// Private methods at the bottom
-func (s *UserService) validateUser(user *User) error {
-    if user.Name == "" {
-        return errors.New("name is required")
-    }
-    return nil
-}
-```
-
-### Package-level functions:
-
-```go
-package utils
-
-// Public functions first
-func ProcessData(data []byte) (Result, error) {
-    cleaned := sanitizeInput(data)
-    return parseData(cleaned)
-}
-
-func ValidateInput(input string) bool {
-    return isValidFormat(input) && checkLength(input)
-}
-
-// Private functions at the bottom
-func sanitizeInput(data []byte) []byte {
-    // implementation
-}
-
-func parseData(data []byte) (Result, error) {
-    // implementation
-}
-
-func isValidFormat(input string) bool {
-    // implementation
-}
-
-func checkLength(input string) bool {
-    // implementation
-}
-```
-
-### Test files:
-
-```go
-package user_test
-
-// Public test functions first
-func Test_CreateUser_ValidInput_UserCreated(t *testing.T) {
-    user := createTestUser()
-    result, err := service.CreateUser(user)
-
-    assert.NoError(t, err)
-    assert.NotNil(t, result)
-}
-
-func Test_GetUser_ExistingUser_ReturnsUser(t *testing.T) {
-    user := createTestUser()
-    // test implementation
-}
-
-// Private helper functions at the bottom
-func createTestUser() *User {
-    return &User{
-        Name:  "Test User",
-        Email: "test@example.com",
-    }
-}
-
-func setupTestDatabase() *Database {
-    // setup implementation
-}
-```
-
-### Controller example:
-
-```go
-type ProjectController struct {
-    service *ProjectService
-}
-
-// Public HTTP handlers first
-func (c *ProjectController) CreateProject(ctx *gin.Context) {
-    var request CreateProjectRequest
-    if err := ctx.ShouldBindJSON(&request); err != nil {
-        c.handleError(ctx, err)
-        return
-    }
-    // handler logic
-}
-
-func (c *ProjectController) GetProject(ctx *gin.Context) {
-    projectID := c.extractProjectID(ctx)
-    // handler logic
-}
-
-// Private helper methods at the bottom
-func (c *ProjectController) handleError(ctx *gin.Context, err error) {
-    ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
-}
-
-func (c *ProjectController) extractProjectID(ctx *gin.Context) uuid.UUID {
-    return uuid.MustParse(ctx.Param("projectId"))
-}
-```
-
-## Key Points:
-
-- **Exported/Public** = starts with uppercase letter (CreateUser, GetProject)
-- **Unexported/Private** = starts with lowercase letter (validateUser, handleError)
-- This improves code readability by showing the public API first
-- Private helpers are implementation details, so they go at the bottom
-- Apply this rule consistently across ALL Go files in the project

backend/.cursor/rules/comments.mdc

@@ -1,45 +0,0 @@
----
-description:
-globs:
-alwaysApply: true
----
-
-## Comment Guidelines
-
-1. **No obvious comments** - Don't state what the code already clearly shows
-2. **Functions and variables should have meaningful names** - Code should be self-documenting
-3. **Comments for unclear code only** - Only add comments when code logic isn't immediately clear
-
-## Key Principles:
-
-- **Code should tell a story** - Use descriptive variable and function names
-- **Comments explain WHY, not WHAT** - The code shows what happens, comments explain business logic or complex decisions
-- **Prefer refactoring over commenting** - If code needs explaining, consider making it clearer instead
-- **API documentation is required** - Swagger comments for all HTTP endpoints are mandatory
-- **Complex algorithms deserve comments** - Mathematical formulas, business rules, or non-obvious optimizations
-
-Example of useless comment:
-
-1.
-
-```sql
-// Create projects table
-CREATE TABLE projects (
-    id                    UUID PRIMARY KEY DEFAULT gen_random_uuid(),
-    name                  TEXT NOT NULL,
-    created_at            TIMESTAMPTZ NOT NULL DEFAULT NOW(),
-```
-
-2.
-
-```go
-// Create test project
-project := CreateTestProject(projectName, user, router)
-```
-
-3.
-
-```go
-// CreateValidLogItems creates valid log items for testing
-func CreateValidLogItems(count int, uniqueID string) []logs_receiving.LogItemRequestDTO {
-```

backend/.cursor/rules/controllers-rule.mdc

@@ -1,133 +0,0 @@
----
-description:
-globs:
-alwaysApply: true
----
-
-1. When we write controller:
-
-- we combine all routes to single controller
-- names them as .WhatWeDo (not "handlers") concept
-
-2. We use gin and \*gin.Context for all routes.
-   Example:
-
-func (c *TasksController) GetAvailableTasks(ctx *gin.Context) ...
-
-3. We document all routes with Swagger in the following format:
-
-package audit_logs
-
-import (
-"net/http"
-
-    user_models "databasus-backend/internal/features/users/models"
-
-    "github.com/gin-gonic/gin"
-    "github.com/google/uuid"
-
-)
-
-type AuditLogController struct {
-auditLogService \*AuditLogService
-}
-
-func (c *AuditLogController) RegisterRoutes(router *gin.RouterGroup) {
-// All audit log endpoints require authentication (handled in main.go)
-auditRoutes := router.Group("/audit-logs")
-
-    auditRoutes.GET("/global", c.GetGlobalAuditLogs)
-    auditRoutes.GET("/users/:userId", c.GetUserAuditLogs)
-
-}
-
-// GetGlobalAuditLogs
-// @Summary Get global audit logs (ADMIN only)
-// @Description Retrieve all audit logs across the system
-// @Tags audit-logs
-// @Accept json
-// @Produce json
-// @Security BearerAuth
-// @Param limit query int false "Limit number of results" default(100)
-// @Param offset query int false "Offset for pagination" default(0)
-// @Param beforeDate query string false "Filter logs created before this date (RFC3339 format)" format(date-time)
-// @Success 200 {object} GetAuditLogsResponse
-// @Failure 401 {object} map[string]string
-// @Failure 403 {object} map[string]string
-// @Router /audit-logs/global [get]
-func (c *AuditLogController) GetGlobalAuditLogs(ctx *gin.Context) {
-user, isOk := ctx.MustGet("user").(\*user_models.User)
-if !isOk {
-ctx.JSON(http.StatusInternalServerError, gin.H{"error": "Invalid user type in context"})
-return
-}
-
-    request := &GetAuditLogsRequest{}
-    if err := ctx.ShouldBindQuery(request); err != nil {
-    	ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid query parameters"})
-    	return
-    }
-
-    response, err := c.auditLogService.GetGlobalAuditLogs(user, request)
-    if err != nil {
-    	if err.Error() == "only administrators can view global audit logs" {
-    		ctx.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
-    		return
-    	}
-    	ctx.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to retrieve audit logs"})
-    	return
-    }
-
-    ctx.JSON(http.StatusOK, response)
-
-}
-
-// GetUserAuditLogs
-// @Summary Get user audit logs
-// @Description Retrieve audit logs for a specific user
-// @Tags audit-logs
-// @Accept json
-// @Produce json
-// @Security BearerAuth
-// @Param userId path string true "User ID"
-// @Param limit query int false "Limit number of results" default(100)
-// @Param offset query int false "Offset for pagination" default(0)
-// @Param beforeDate query string false "Filter logs created before this date (RFC3339 format)" format(date-time)
-// @Success 200 {object} GetAuditLogsResponse
-// @Failure 400 {object} map[string]string
-// @Failure 401 {object} map[string]string
-// @Failure 403 {object} map[string]string
-// @Router /audit-logs/users/{userId} [get]
-func (c *AuditLogController) GetUserAuditLogs(ctx *gin.Context) {
-user, isOk := ctx.MustGet("user").(\*user_models.User)
-if !isOk {
-ctx.JSON(http.StatusInternalServerError, gin.H{"error": "Invalid user type in context"})
-return
-}
-
-    userIDStr := ctx.Param("userId")
-    targetUserID, err := uuid.Parse(userIDStr)
-    if err != nil {
-    	ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid user ID"})
-    	return
-    }
-
-    request := &GetAuditLogsRequest{}
-    if err := ctx.ShouldBindQuery(request); err != nil {
-    	ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid query parameters"})
-    	return
-    }
-
-    response, err := c.auditLogService.GetUserAuditLogs(targetUserID, user, request)
-    if err != nil {
-    	if err.Error() == "insufficient permissions to view user audit logs" {
-    		ctx.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
-    		return
-    	}
-    	ctx.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to retrieve audit logs"})
-    	return
-    }
-
-    ctx.JSON(http.StatusOK, response)
-
-}

backend/.cursor/rules/crud.mdc

@@ -1,671 +0,0 @@
----
-alwaysApply: false
----
-
-This is example of CRUD:
-
------- backend/internal/features/audit_logs/controller.go ------
-
-```
-package audit_logs
-
-import (
-	"net/http"
-
-	user_models "databasus-backend/internal/features/users/models"
-
-	"github.com/gin-gonic/gin"
-	"github.com/google/uuid"
-)
-
-type AuditLogController struct {
-	auditLogService *AuditLogService
-}
-
-func (c *AuditLogController) RegisterRoutes(router *gin.RouterGroup) {
-	// All audit log endpoints require authentication (handled in main.go)
-	auditRoutes := router.Group("/audit-logs")
-
-	auditRoutes.GET("/global", c.GetGlobalAuditLogs)
-	auditRoutes.GET("/users/:userId", c.GetUserAuditLogs)
-}
-
-// GetGlobalAuditLogs
-// @Summary Get global audit logs (ADMIN only)
-// @Description Retrieve all audit logs across the system
-// @Tags audit-logs
-// @Accept json
-// @Produce json
-// @Security BearerAuth
-// @Param limit query int false "Limit number of results" default(100)
-// @Param offset query int false "Offset for pagination" default(0)
-// @Param beforeDate query string false "Filter logs created before this date (RFC3339 format)" format(date-time)
-// @Success 200 {object} GetAuditLogsResponse
-// @Failure 401 {object} map[string]string
-// @Failure 403 {object} map[string]string
-// @Router /audit-logs/global [get]
-func (c *AuditLogController) GetGlobalAuditLogs(ctx *gin.Context) {
-	user, isOk := ctx.MustGet("user").(*user_models.User)
-	if !isOk {
-		ctx.JSON(http.StatusInternalServerError, gin.H{"error": "Invalid user type in context"})
-		return
-	}
-
-	request := &GetAuditLogsRequest{}
-	if err := ctx.ShouldBindQuery(request); err != nil {
-		ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid query parameters"})
-		return
-	}
-
-	response, err := c.auditLogService.GetGlobalAuditLogs(user, request)
-	if err != nil {
-		if err.Error() == "only administrators can view global audit logs" {
-			ctx.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
-			return
-		}
-		ctx.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to retrieve audit logs"})
-		return
-	}
-
-	ctx.JSON(http.StatusOK, response)
-}
-
-// GetUserAuditLogs
-// @Summary Get user audit logs
-// @Description Retrieve audit logs for a specific user
-// @Tags audit-logs
-// @Accept json
-// @Produce json
-// @Security BearerAuth
-// @Param userId path string true "User ID"
-// @Param limit query int false "Limit number of results" default(100)
-// @Param offset query int false "Offset for pagination" default(0)
-// @Param beforeDate query string false "Filter logs created before this date (RFC3339 format)" format(date-time)
-// @Success 200 {object} GetAuditLogsResponse
-// @Failure 400 {object} map[string]string
-// @Failure 401 {object} map[string]string
-// @Failure 403 {object} map[string]string
-// @Router /audit-logs/users/{userId} [get]
-func (c *AuditLogController) GetUserAuditLogs(ctx *gin.Context) {
-	user, isOk := ctx.MustGet("user").(*user_models.User)
-	if !isOk {
-		ctx.JSON(http.StatusInternalServerError, gin.H{"error": "Invalid user type in context"})
-		return
-	}
-
-	userIDStr := ctx.Param("userId")
-	targetUserID, err := uuid.Parse(userIDStr)
-	if err != nil {
-		ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid user ID"})
-		return
-	}
-
-	request := &GetAuditLogsRequest{}
-	if err := ctx.ShouldBindQuery(request); err != nil {
-		ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid query parameters"})
-		return
-	}
-
-	response, err := c.auditLogService.GetUserAuditLogs(targetUserID, user, request)
-	if err != nil {
-		if err.Error() == "insufficient permissions to view user audit logs" {
-			ctx.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
-			return
-		}
-		ctx.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to retrieve audit logs"})
-		return
-	}
-
-	ctx.JSON(http.StatusOK, response)
-}
-
-```
-
------- backend/internal/features/audit_logs/controller_test.go ------
-
-```
-package audit_logs
-
-import (
-	"fmt"
-	"net/http"
-	"testing"
-	"time"
-
-	user_enums "databasus-backend/internal/features/users/enums"
-	users_middleware "databasus-backend/internal/features/users/middleware"
-	users_services "databasus-backend/internal/features/users/services"
-	users_testing "databasus-backend/internal/features/users/testing"
-	"databasus-backend/internal/storage"
-	test_utils "databasus-backend/internal/util/testing"
-
-	"github.com/gin-gonic/gin"
-	"github.com/google/uuid"
-	"github.com/stretchr/testify/assert"
-)
-
-func Test_GetGlobalAuditLogs_AdminSucceedsAndMemberGetsForbidden(t *testing.T) {
-	adminUser := users_testing.CreateTestUser(user_enums.UserRoleAdmin)
-	memberUser := users_testing.CreateTestUser(user_enums.UserRoleMember)
-	router := createRouter()
-	service := GetAuditLogService()
-	projectID := uuid.New()
-
-	// Create test logs
-	createAuditLog(service, "Test log with user", &adminUser.UserID, nil)
-	createAuditLog(service, "Test log with project", nil, &projectID)
-	createAuditLog(service, "Test log standalone", nil, nil)
-
-	// Test ADMIN can access global logs
-	var response GetAuditLogsResponse
-	test_utils.MakeGetRequestAndUnmarshal(t, router,
-		"/api/v1/audit-logs/global?limit=10", "Bearer "+adminUser.Token, http.StatusOK, &response)
-
-	assert.GreaterOrEqual(t, len(response.AuditLogs), 3)
-	assert.GreaterOrEqual(t, response.Total, int64(3))
-
-	messages := extractMessages(response.AuditLogs)
-	assert.Contains(t, messages, "Test log with user")
-	assert.Contains(t, messages, "Test log with project")
-	assert.Contains(t, messages, "Test log standalone")
-
-	// Test MEMBER cannot access global logs
-	resp := test_utils.MakeGetRequest(t, router, "/api/v1/audit-logs/global",
-		"Bearer "+memberUser.Token, http.StatusForbidden)
-	assert.Contains(t, string(resp.Body), "only administrators can view global audit logs")
-}
-
-func Test_GetUserAuditLogs_PermissionsEnforcedCorrectly(t *testing.T) {
-	adminUser := users_testing.CreateTestUser(user_enums.UserRoleAdmin)
-	user1 := users_testing.CreateTestUser(user_enums.UserRoleMember)
-	user2 := users_testing.CreateTestUser(user_enums.UserRoleMember)
-	router := createRouter()
-	service := GetAuditLogService()
-	projectID := uuid.New()
-
-	// Create test logs for different users
-	createAuditLog(service, "Test log user1 first", &user1.UserID, nil)
-	createAuditLog(service, "Test log user1 second", &user1.UserID, &projectID)
-	createAuditLog(service, "Test log user2 first", &user2.UserID, nil)
-	createAuditLog(service, "Test log user2 second", &user2.UserID, &projectID)
-	createAuditLog(service, "Test project log", nil, &projectID)
-
-	// Test ADMIN can view any user's logs
-	var user1Response GetAuditLogsResponse
-	test_utils.MakeGetRequestAndUnmarshal(t, router,
-		fmt.Sprintf("/api/v1/audit-logs/users/%s?limit=10", user1.UserID.String()),
-		"Bearer "+adminUser.Token, http.StatusOK, &user1Response)
-
-	assert.Equal(t, 2, len(user1Response.AuditLogs))
-	messages := extractMessages(user1Response.AuditLogs)
-	assert.Contains(t, messages, "Test log user1 first")
-	assert.Contains(t, messages, "Test log user1 second")
-
-	// Test user can view own logs
-	var ownLogsResponse GetAuditLogsResponse
-	test_utils.MakeGetRequestAndUnmarshal(t, router,
-		fmt.Sprintf("/api/v1/audit-logs/users/%s", user2.UserID.String()),
-		"Bearer "+user2.Token, http.StatusOK, &ownLogsResponse)
-	assert.Equal(t, 2, len(ownLogsResponse.AuditLogs))
-
-	// Test user cannot view other user's logs
-	resp := test_utils.MakeGetRequest(t, router,
-		fmt.Sprintf("/api/v1/audit-logs/users/%s", user1.UserID.String()),
-		"Bearer "+user2.Token, http.StatusForbidden)
-
-	assert.Contains(t, string(resp.Body), "insufficient permissions")
-}
-
-func Test_FilterAuditLogsByTime_ReturnsOnlyLogsBeforeDate(t *testing.T) {
-	adminUser := users_testing.CreateTestUser(user_enums.UserRoleAdmin)
-	router := createRouter()
-	service := GetAuditLogService()
-	db := storage.GetDb()
-	baseTime := time.Now().UTC()
-
-	// Create logs with different timestamps
-	createTimedLog(db, &adminUser.UserID, "Test old log", baseTime.Add(-2*time.Hour))
-	createTimedLog(db, &adminUser.UserID, "Test recent log", baseTime.Add(-30*time.Minute))
-	createAuditLog(service, "Test current log", &adminUser.UserID, nil)
-
-	// Test filtering - get logs before 1 hour ago
-	beforeTime := baseTime.Add(-1 * time.Hour)
-	var filteredResponse GetAuditLogsResponse
-	test_utils.MakeGetRequestAndUnmarshal(t, router,
-		fmt.Sprintf("/api/v1/audit-logs/global?beforeDate=%s", beforeTime.Format(time.RFC3339)),
-		"Bearer "+adminUser.Token, http.StatusOK, &filteredResponse)
-
-	// Verify only old log is returned
-	messages := extractMessages(filteredResponse.AuditLogs)
-	assert.Contains(t, messages, "Test old log")
-	assert.NotContains(t, messages, "Test recent log")
-	assert.NotContains(t, messages, "Test current log")
-
-	// Test without filter - should get all logs
-	var allResponse GetAuditLogsResponse
-	test_utils.MakeGetRequestAndUnmarshal(t, router, "/api/v1/audit-logs/global",
-		"Bearer "+adminUser.Token, http.StatusOK, &allResponse)
-	assert.GreaterOrEqual(t, len(allResponse.AuditLogs), 3)
-}
-
-func createRouter() *gin.Engine {
-	gin.SetMode(gin.TestMode)
-	router := gin.New()
-	SetupDependencies()
-
-	v1 := router.Group("/api/v1")
-	protected := v1.Group("").Use(users_middleware.AuthMiddleware(users_services.GetUserService()))
-	GetAuditLogController().RegisterRoutes(protected.(*gin.RouterGroup))
-
-	return router
-}
-
-```
-
------- backend/internal/features/audit_logs/di.go ------
-
-```
-package audit_logs
-
-import (
-	users_services "databasus-backend/internal/features/users/services"
-	"databasus-backend/internal/util/logger"
-)
-
-var auditLogRepository = &AuditLogRepository{}
-var auditLogService = &AuditLogService{
-	auditLogRepository: auditLogRepository,
-	logger:             logger.GetLogger(),
-}
-var auditLogController = &AuditLogController{
-	auditLogService: auditLogService,
-}
-
-func GetAuditLogService() *AuditLogService {
-	return auditLogService
-}
-
-func GetAuditLogController() *AuditLogController {
-	return auditLogController
-}
-
-func SetupDependencies() {
-	users_services.GetUserService().SetAuditLogWriter(auditLogService)
-	users_services.GetSettingsService().SetAuditLogWriter(auditLogService)
-	users_services.GetManagementService().SetAuditLogWriter(auditLogService)
-}
-
-```
-
------- backend/internal/features/audit_logs/dto.go ------
-
-```
-package audit_logs
-
-import "time"
-
-type GetAuditLogsRequest struct {
-	Limit      int        `form:"limit"      json:"limit"`
-	Offset     int        `form:"offset"     json:"offset"`
-	BeforeDate *time.Time `form:"beforeDate" json:"beforeDate"`
-}
-
-type GetAuditLogsResponse struct {
-	AuditLogs []*AuditLog `json:"auditLogs"`
-	Total     int64       `json:"total"`
-	Limit     int         `json:"limit"`
-	Offset    int         `json:"offset"`
-}
-
-```
-
------- backend/internal/features/audit_logs/models.go ------
-
-```
-package audit_logs
-
-import (
-	"time"
-
-	"github.com/google/uuid"
-)
-
-type AuditLog struct {
-	ID        uuid.UUID  `json:"id"        gorm:"column:id"`
-	UserID    *uuid.UUID `json:"userId"    gorm:"column:user_id"`
-	ProjectID *uuid.UUID `json:"projectId" gorm:"column:project_id"`
-	Message   string     `json:"message"   gorm:"column:message"`
-	CreatedAt time.Time  `json:"createdAt" gorm:"column:created_at"`
-}
-
-func (AuditLog) TableName() string {
-	return "audit_logs"
-}
-
-```
-
------- backend/internal/features/audit_logs/repository.go ------
-
-```
-package audit_logs
-
-import (
-	"databasus-backend/internal/storage"
-	"time"
-
-	"github.com/google/uuid"
-)
-
-type AuditLogRepository struct{}
-
-func (r *AuditLogRepository) Create(auditLog *AuditLog) error {
-	if auditLog.ID == uuid.Nil {
-		auditLog.ID = uuid.New()
-	}
-
-	return storage.GetDb().Create(auditLog).Error
-}
-
-func (r *AuditLogRepository) GetGlobal(limit, offset int, beforeDate *time.Time) ([]*AuditLog, error) {
-	var auditLogs []*AuditLog
-
-	query := storage.GetDb().Order("created_at DESC")
-
-	if beforeDate != nil {
-		query = query.Where("created_at < ?", *beforeDate)
-	}
-
-	err := query.
-		Limit(limit).
-		Offset(offset).
-		Find(&auditLogs).Error
-
-	return auditLogs, err
-}
-
-func (r *AuditLogRepository) GetByUser(
-	userID uuid.UUID,
-	limit, offset int,
-	beforeDate *time.Time,
-) ([]*AuditLog, error) {
-	var auditLogs []*AuditLog
-
-	query := storage.GetDb().
-		Where("user_id = ?", userID).
-		Order("created_at DESC")
-
-	if beforeDate != nil {
-		query = query.Where("created_at < ?", *beforeDate)
-	}
-
-	err := query.
-		Limit(limit).
-		Offset(offset).
-		Find(&auditLogs).Error
-
-	return auditLogs, err
-}
-
-func (r *AuditLogRepository) GetByProject(
-	projectID uuid.UUID,
-	limit, offset int,
-	beforeDate *time.Time,
-) ([]*AuditLog, error) {
-	var auditLogs []*AuditLog
-
-	query := storage.GetDb().
-		Where("project_id = ?", projectID).
-		Order("created_at DESC")
-
-	if beforeDate != nil {
-		query = query.Where("created_at < ?", *beforeDate)
-	}
-
-	err := query.
-		Limit(limit).
-		Offset(offset).
-		Find(&auditLogs).Error
-
-	return auditLogs, err
-}
-
-func (r *AuditLogRepository) CountGlobal(beforeDate *time.Time) (int64, error) {
-	var count int64
-	query := storage.GetDb().Model(&AuditLog{})
-
-	if beforeDate != nil {
-		query = query.Where("created_at < ?", *beforeDate)
-	}
-
-	err := query.Count(&count).Error
-	return count, err
-}
-
-```
-
------- backend/internal/features/audit_logs/service.go ------
-
-```
-package audit_logs
-
-import (
-	"errors"
-	"log/slog"
-	"time"
-
-	user_enums "databasus-backend/internal/features/users/enums"
-	user_models "databasus-backend/internal/features/users/models"
-
-	"github.com/google/uuid"
-)
-
-type AuditLogService struct {
-	auditLogRepository *AuditLogRepository
-	logger             *slog.Logger
-}
-
-func (s *AuditLogService) WriteAuditLog(
-	message string,
-	userID *uuid.UUID,
-	projectID *uuid.UUID,
-) {
-	auditLog := &AuditLog{
-		UserID:    userID,
-		ProjectID: projectID,
-		Message:   message,
-		CreatedAt: time.Now().UTC(),
-	}
-
-	err := s.auditLogRepository.Create(auditLog)
-	if err != nil {
-		s.logger.Error("failed to create audit log", "error", err)
-		return
-	}
-}
-
-func (s *AuditLogService) CreateAuditLog(auditLog *AuditLog) error {
-	return s.auditLogRepository.Create(auditLog)
-}
-
-func (s *AuditLogService) GetGlobalAuditLogs(
-	user *user_models.User,
-	request *GetAuditLogsRequest,
-) (*GetAuditLogsResponse, error) {
-	if user.Role != user_enums.UserRoleAdmin {
-		return nil, errors.New("only administrators can view global audit logs")
-	}
-
-	limit := request.Limit
-	if limit <= 0 || limit > 1000 {
-		limit = 100
-	}
-
-	offset := max(request.Offset, 0)
-
-	auditLogs, err := s.auditLogRepository.GetGlobal(limit, offset, request.BeforeDate)
-	if err != nil {
-		return nil, err
-	}
-
-	total, err := s.auditLogRepository.CountGlobal(request.BeforeDate)
-	if err != nil {
-		return nil, err
-	}
-
-	return &GetAuditLogsResponse{
-		AuditLogs: auditLogs,
-		Total:     total,
-		Limit:     limit,
-		Offset:    offset,
-	}, nil
-}
-
-func (s *AuditLogService) GetUserAuditLogs(
-	targetUserID uuid.UUID,
-	user *user_models.User,
-	request *GetAuditLogsRequest,
-) (*GetAuditLogsResponse, error) {
-	// Users can view their own logs, ADMIN can view any user's logs
-	if user.Role != user_enums.UserRoleAdmin && user.ID != targetUserID {
-		return nil, errors.New("insufficient permissions to view user audit logs")
-	}
-
-	limit := request.Limit
-	if limit <= 0 || limit > 1000 {
-		limit = 100
-	}
-
-	offset := max(request.Offset, 0)
-
-	auditLogs, err := s.auditLogRepository.GetByUser(targetUserID, limit, offset, request.BeforeDate)
-	if err != nil {
-		return nil, err
-	}
-
-	return &GetAuditLogsResponse{
-		AuditLogs: auditLogs,
-		Total:     int64(len(auditLogs)),
-		Limit:     limit,
-		Offset:    offset,
-	}, nil
-}
-
-func (s *AuditLogService) GetProjectAuditLogs(
-	projectID uuid.UUID,
-	request *GetAuditLogsRequest,
-) (*GetAuditLogsResponse, error) {
-	limit := request.Limit
-	if limit <= 0 || limit > 1000 {
-		limit = 100
-	}
-
-	offset := max(request.Offset, 0)
-
-	auditLogs, err := s.auditLogRepository.GetByProject(projectID, limit, offset, request.BeforeDate)
-	if err != nil {
-		return nil, err
-	}
-
-	return &GetAuditLogsResponse{
-		AuditLogs: auditLogs,
-		Total:     int64(len(auditLogs)),
-		Limit:     limit,
-		Offset:    offset,
-	}, nil
-}
-
-```
-
------- backend/internal/features/audit_logs/service_test.go ------
-
-```
-package audit_logs
-
-import (
-	"testing"
-	"time"
-
-	user_enums "databasus-backend/internal/features/users/enums"
-	users_testing "databasus-backend/internal/features/users/testing"
-
-	"github.com/google/uuid"
-	"github.com/stretchr/testify/assert"
-	"gorm.io/gorm"
-)
-
-func Test_AuditLogs_ProjectSpecificLogs(t *testing.T) {
-	service := GetAuditLogService()
-	user1 := users_testing.CreateTestUser(user_enums.UserRoleMember)
-	user2 := users_testing.CreateTestUser(user_enums.UserRoleMember)
-	project1ID, project2ID := uuid.New(), uuid.New()
-
-	// Create test logs for projects
-	createAuditLog(service, "Test project1 log first", &user1.UserID, &project1ID)
-	createAuditLog(service, "Test project1 log second", &user2.UserID, &project1ID)
-	createAuditLog(service, "Test project2 log first", &user1.UserID, &project2ID)
-	createAuditLog(service, "Test project2 log second", &user2.UserID, &project2ID)
-	createAuditLog(service, "Test no project log", &user1.UserID, nil)
-
-	request := &GetAuditLogsRequest{Limit: 10, Offset: 0}
-
-	// Test project 1 logs
-	project1Response, err := service.GetProjectAuditLogs(project1ID, request)
-	assert.NoError(t, err)
-	assert.Equal(t, 2, len(project1Response.AuditLogs))
-
-	messages := extractMessages(project1Response.AuditLogs)
-	assert.Contains(t, messages, "Test project1 log first")
-	assert.Contains(t, messages, "Test project1 log second")
-	for _, log := range project1Response.AuditLogs {
-		assert.Equal(t, &project1ID, log.ProjectID)
-	}
-
-	// Test project 2 logs
-	project2Response, err := service.GetProjectAuditLogs(project2ID, request)
-	assert.NoError(t, err)
-	assert.Equal(t, 2, len(project2Response.AuditLogs))
-
-	messages2 := extractMessages(project2Response.AuditLogs)
-	assert.Contains(t, messages2, "Test project2 log first")
-	assert.Contains(t, messages2, "Test project2 log second")
-
-	// Test pagination
-	limitedResponse, err := service.GetProjectAuditLogs(project1ID,
-		&GetAuditLogsRequest{Limit: 1, Offset: 0})
-	assert.NoError(t, err)
-	assert.Equal(t, 1, len(limitedResponse.AuditLogs))
-	assert.Equal(t, 1, limitedResponse.Limit)
-
-	// Test beforeDate filter
-	beforeTime := time.Now().UTC().Add(-1 * time.Minute)
-	filteredResponse, err := service.GetProjectAuditLogs(project1ID,
-		&GetAuditLogsRequest{Limit: 10, BeforeDate: &beforeTime})
-	assert.NoError(t, err)
-	for _, log := range filteredResponse.AuditLogs {
-		assert.True(t, log.CreatedAt.Before(beforeTime))
-	}
-}
-
-func createAuditLog(service *AuditLogService, message string, userID, projectID *uuid.UUID) {
-	service.WriteAuditLog(message, userID, projectID)
-}
-
-func extractMessages(logs []*AuditLog) []string {
-	messages := make([]string, len(logs))
-	for i, log := range logs {
-		messages[i] = log.Message
-	}
-	return messages
-}
-
-func createTimedLog(db *gorm.DB, userID *uuid.UUID, message string, createdAt time.Time) {
-	log := &AuditLog{
-		ID:        uuid.New(),
-		UserID:    userID,
-		Message:   message,
-		CreatedAt: createdAt,
-	}
-	db.Create(log)
-}
-
-```

backend/.cursor/rules/di-rule.mdc

@@ -1,74 +0,0 @@
----
-description: 
-globs: 
-alwaysApply: true
----
-For DI files use implicit fields declaration styles (espesially
-for controllers, services, repositories, use cases, etc., not simple
-data structures).
-
-So, instead of:
-
-var orderController = &OrderController{
-    orderService:   orderService,
-    botUserService: bot_users.GetBotUserService(),
-    botService:     bots.GetBotService(),
-    userService:    users.GetUserService(),
-}
-
-Use:
-
-var orderController = &OrderController{
-    orderService,
-    bot_users.GetBotUserService(),
-    bots.GetBotService(),
-    users.GetUserService(),
-}
-
-This is needed to avoid forgetting to update DI style
-when we add new dependency.
-
----
-
-Please force such usage if file look like this (see some
-services\controllers\repos definitions and getters):
-
-var orderBackgroundService = &OrderBackgroundService{
-	orderService:           orderService,
-	orderPaymentRepository: orderPaymentRepository,
-	botService:             bots.GetBotService(),
-	paymentSettingsService: payment_settings.GetPaymentSettingsService(),
-
-	orderSubscriptionListeners: []OrderSubscriptionListener{},
-}
-
-var orderController = &OrderController{
-	orderService:   orderService,
-	botUserService: bot_users.GetBotUserService(),
-	botService:     bots.GetBotService(),
-	userService:    users.GetUserService(),
-}
-
-func GetUniquePaymentRepository() *repositories.UniquePaymentRepository {
-	return uniquePaymentRepository
-}
-
-func GetOrderPaymentRepository() *repositories.OrderPaymentRepository {
-	return orderPaymentRepository
-}
-
-func GetOrderService() *OrderService {
-	return orderService
-}
-
-func GetOrderController() *OrderController {
-	return orderController
-}
-
-func GetOrderBackgroundService() *OrderBackgroundService {
-	return orderBackgroundService
-}
-
-func GetOrderRepository() *repositories.OrderRepository {
-	return orderRepository
-}

backend/.cursor/rules/migrations-rule.mdc

@@ -1,27 +0,0 @@
----
-description: 
-globs: 
-alwaysApply: true
----
-When writting migrations:
-
-- write them for PostgreSQL
-- for PRIMARY UUID keys use gen_random_uuid()
-- for time use TIMESTAMPTZ (timestamp with zone)
-- split table, constraint and indexes declaration (table first, them other one by one)
-- format SQL in pretty way (add spaces, align columns types), constraints split by lines. The example:
-
-CREATE TABLE marketplace_info (
-    bot_id            UUID PRIMARY KEY DEFAULT gen_random_uuid(),
-    title             TEXT NOT NULL,
-    description       TEXT NOT NULL,
-    short_description TEXT NOT NULL,
-    tutorial_url      TEXT,
-    info_order        BIGINT NOT NULL DEFAULT 0,
-    is_published      BOOLEAN NOT NULL DEFAULT FALSE
-);
-
-ALTER TABLE marketplace_info_images
-    ADD CONSTRAINT fk_marketplace_info_images_bot_id
-    FOREIGN KEY (bot_id)
-    REFERENCES marketplace_info (bot_id);

backend/.cursor/rules/refactor.mdc

@@ -1,12 +0,0 @@
----
-description:
-globs:
-alwaysApply: true
----
-
-When applying changes, do not forget to refactor old code.
-
-You can shortify, make more readable, improve code quality, etc.
-Common logic can be extracted to functions, constants, files, etc.
-
-After each large change with more than ~50-100 lines of code - always run `make lint` (from backend root folder) and, if you change frontend, run `npm run format` (from frontend root folder).

backend/.cursor/rules/tests.mdc

@@ -1,147 +0,0 @@
----
-description:
-globs:
-alwaysApply: true
----
-
-After writing tests, always launch them and verify that they pass.
-
-## Test Naming Format
-
-Use these naming patterns:
-
-- `Test_WhatWeDo_WhatWeExpect`
-- `Test_WhatWeDo_WhichConditions_WhatWeExpect`
-
-## Examples from Real Codebase:
-
-- `Test_CreateApiKey_WhenUserIsProjectOwner_ApiKeyCreated`
-- `Test_UpdateProject_WhenUserIsProjectAdmin_ProjectUpdated`
-- `Test_DeleteApiKey_WhenUserIsProjectMember_ReturnsForbidden`
-- `Test_GetProjectAuditLogs_WithDifferentUserRoles_EnforcesPermissionsCorrectly`
-- `Test_ProjectLifecycleE2E_CompletesSuccessfully`
-
-## Testing Philosophy
-
-**Prefer Controllers Over Unit Tests:**
-
-- Test through HTTP endpoints via controllers whenever possible
-- Avoid testing repositories, services in isolation - test via API instead
-- Only use unit tests for complex model logic when no API exists
-- Name test files `controller_test.go` or `service_test.go`, not `integration_test.go`
-
-**Extract Common Logic to Testing Utilities:**
-
-- Create `testing.go` or `testing/testing.go` files for shared test utilities
-- Extract router creation, user setup, models creation helpers (in API, not just structs creation)
-- Reuse common patterns across different test files
-
-**Refactor Existing Tests:**
-
-- When working with existing tests, always look for opportunities to refactor and improve
-- Extract repetitive setup code to common utilities
-- Simplify complex tests by breaking them into smaller, focused tests
-- Replace inline test data creation with reusable helper functions
-- Consolidate similar test patterns across different test files
-- Make tests more readable and maintainable for other developers
-
-## Testing Utilities Structure
-
-**Create `testing.go` or `testing/testing.go` files with common utilities:**
-
-```go
-package projects_testing
-
-// CreateTestRouter creates unified router for all controllers
-func CreateTestRouter(controllers ...ControllerInterface) *gin.Engine {
-	gin.SetMode(gin.TestMode)
-	router := gin.New()
-	v1 := router.Group("/api/v1")
-	protected := v1.Group("").Use(users_middleware.AuthMiddleware(users_services.GetUserService()))
-
-	for _, controller := range controllers {
-		if routerGroup, ok := protected.(*gin.RouterGroup); ok {
-			controller.RegisterRoutes(routerGroup)
-		}
-	}
-	return router
-}
-
-// CreateTestProjectViaAPI creates project through HTTP API
-func CreateTestProjectViaAPI(name string, owner *users_dto.SignInResponseDTO, router *gin.Engine) (*projects_models.Project, string) {
-	request := projects_dto.CreateProjectRequestDTO{Name: name}
-	w := MakeAPIRequest(router, "POST", "/api/v1/projects", "Bearer "+owner.Token, request)
-	// Handle response...
-	return project, owner.Token
-}
-
-// AddMemberToProject adds member via API call
-func AddMemberToProject(project *projects_models.Project, member *users_dto.SignInResponseDTO, role users_enums.ProjectRole, ownerToken string, router *gin.Engine) {
-	// Implementation...
-}
-```
-
-## Controller Test Examples
-
-**Permission-based testing:**
-
-```go
-func Test_CreateApiKey_WhenUserIsProjectOwner_ApiKeyCreated(t *testing.T) {
-	router := CreateApiKeyTestRouter(GetProjectController(), GetMembershipController())
-	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
-	project, _ := projects_testing.CreateTestProjectViaAPI("Test Project", owner, router)
-
-	request := CreateApiKeyRequestDTO{Name: "Test API Key"}
-	var response ApiKey
-	test_utils.MakePostRequestAndUnmarshal(t, router, "/api/v1/projects/api-keys/"+project.ID.String(), "Bearer "+owner.Token, request, http.StatusOK, &response)
-
-	assert.Equal(t, "Test API Key", response.Name)
-	assert.NotEmpty(t, response.Token)
-}
-```
-
-**Cross-project security testing:**
-
-```go
-func Test_UpdateApiKey_WithApiKeyFromDifferentProject_ReturnsBadRequest(t *testing.T) {
-	router := CreateApiKeyTestRouter(GetProjectController(), GetMembershipController())
-	owner1 := users_testing.CreateTestUser(users_enums.UserRoleMember)
-	owner2 := users_testing.CreateTestUser(users_enums.UserRoleMember)
-	project1, _ := projects_testing.CreateTestProjectViaAPI("Project 1", owner1, router)
-	project2, _ := projects_testing.CreateTestProjectViaAPI("Project 2", owner2, router)
-
-	apiKey := CreateTestApiKey("Cross Project Key", project1.ID, owner1.Token, router)
-
-	// Try to update via different project endpoint
-	request := UpdateApiKeyRequestDTO{Name: &"Hacked Key"}
-	resp := test_utils.MakePutRequest(t, router, "/api/v1/projects/api-keys/"+project2.ID.String()+"/"+apiKey.ID.String(), "Bearer "+owner2.Token, request, http.StatusBadRequest)
-
-	assert.Contains(t, string(resp.Body), "API key does not belong to this project")
-}
-```
-
-**E2E lifecycle testing:**
-
-```go
-func Test_ProjectLifecycleE2E_CompletesSuccessfully(t *testing.T) {
-	router := projects_testing.CreateTestRouter(GetProjectController(), GetMembershipController())
-
-	// 1. Create project
-	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
-	project := projects_testing.CreateTestProject("E2E Project", owner, router)
-
-	// 2. Add member
-	member := users_testing.CreateTestUser(users_enums.UserRoleMember)
-	projects_testing.AddMemberToProject(project, member, users_enums.ProjectRoleMember, owner.Token, router)
-
-	// 3. Promote to admin
-	projects_testing.ChangeMemberRole(project, member.UserID, users_enums.ProjectRoleAdmin, owner.Token, router)
-
-	// 4. Transfer ownership
-	projects_testing.TransferProjectOwnership(project, member.UserID, owner.Token, router)
-
-	// 5. Verify new owner can manage project
-	finalProject := projects_testing.GetProject(project.ID, member.Token, router)
-	assert.Equal(t, project.ID, finalProject.ID)
-}
-```

backend/.cursor/rules/time-rule.mdc

@@ -1,6 +0,0 @@
----
-description: 
-globs: 
-alwaysApply: true
----
-Always use time.Now().UTC() instead of time.Now()

backend/.env.development.example

@@ -2,8 +2,13 @@
 DEV_DB_NAME=databasus
 DEV_DB_USERNAME=postgres
 DEV_DB_PASSWORD=Q1234567
-#app
+# app
 ENV_MODE=development
+# logging
+SHOW_DB_INSTALLATION_VERIFICATION_LOGS=true
+# tests
+TEST_LOCALHOST=localhost
+IS_SKIP_EXTERNAL_RESOURCES_TESTS=false
 # db
 DATABASE_DSN=host=dev-db user=postgres password=Q1234567 dbname=databasus port=5437 sslmode=disable
 DATABASE_URL=postgres://postgres:Q1234567@dev-db:5437/databasus?sslmode=disable
@@ -11,6 +16,12 @@ DATABASE_URL=postgres://postgres:Q1234567@dev-db:5437/databasus?sslmode=disable
 GOOSE_DRIVER=postgres
 GOOSE_DBSTRING=postgres://postgres:Q1234567@dev-db:5437/databasus?sslmode=disable
 GOOSE_MIGRATION_DIR=./migrations
+# valkey
+VALKEY_HOST=127.0.0.1
+VALKEY_PORT=6379
+VALKEY_USERNAME=
+VALKEY_PASSWORD=
+VALKEY_IS_SSL=false
 # testing
 # to get Google Drive env variables: add storage in UI and copy data from added storage here 
 TEST_GOOGLE_DRIVE_CLIENT_ID=

backend/.env.production.example

@@ -10,4 +10,10 @@ DATABASE_URL=postgres://postgres:Q1234567@localhost:5437/databasus?sslmode=disab
 # migrations
 GOOSE_DRIVER=postgres
 GOOSE_DBSTRING=postgres://postgres:Q1234567@localhost:5437/databasus?sslmode=disable
-GOOSE_MIGRATION_DIR=./migrations
+GOOSE_MIGRATION_DIR=./migrations
+# valkey
+VALKEY_HOST=127.0.0.1
+VALKEY_PORT=6379
+VALKEY_USERNAME=
+VALKEY_PASSWORD=
+VALKEY_IS_SSL=false

backend/.gitignore

@@ -17,4 +17,5 @@ ui/build/*
 pgdata-for-restore/
 temp/
 cmd.exe
-temp/
+temp/
+valkey-data/

backend/Makefile

@@ -2,10 +2,10 @@ run:
 	go run cmd/main.go
 
 test:
-	go test -p=1 -count=1 -failfast -timeout 10m .\internal\...
+	go test -p=1 -count=1 -failfast -timeout 15m ./internal/...
 
 lint:
-	golangci-lint fmt && golangci-lint run
+	golangci-lint fmt ./cmd/... ./internal/... && golangci-lint run ./cmd/... ./internal/...
 
 migration-create:
 	goose create $(name) sql

backend/cmd/main.go

@@ -15,6 +15,8 @@ import (
 	"databasus-backend/internal/config"
 	"databasus-backend/internal/features/audit_logs"
 	"databasus-backend/internal/features/backups/backups"
+	"databasus-backend/internal/features/backups/backups/backuping"
+	backups_download "databasus-backend/internal/features/backups/backups/download"
 	backups_config "databasus-backend/internal/features/backups/config"
 	"databasus-backend/internal/features/databases"
 	"databasus-backend/internal/features/disk"
@@ -23,12 +25,15 @@ import (
 	healthcheck_config "databasus-backend/internal/features/healthcheck/config"
 	"databasus-backend/internal/features/notifiers"
 	"databasus-backend/internal/features/restores"
+	"databasus-backend/internal/features/restores/restoring"
 	"databasus-backend/internal/features/storages"
 	system_healthcheck "databasus-backend/internal/features/system/healthcheck"
+	task_cancellation "databasus-backend/internal/features/tasks/cancellation"
 	users_controllers "databasus-backend/internal/features/users/controllers"
 	users_middleware "databasus-backend/internal/features/users/middleware"
 	users_services "databasus-backend/internal/features/users/services"
 	workspaces_controllers "databasus-backend/internal/features/workspaces/controllers"
+	cache_utils "databasus-backend/internal/util/cache"
 	env_utils "databasus-backend/internal/util/env"
 	files_utils "databasus-backend/internal/util/files"
 	"databasus-backend/internal/util/logger"
@@ -52,7 +57,23 @@ import (
 func main() {
 	log := logger.GetLogger()
 
-	runMigrations(log)
+	cache_utils.TestCacheConnection()
+
+	if config.GetEnv().IsPrimaryNode {
+		log.Info("Clearing cache...")
+
+		err := cache_utils.ClearAllCache()
+		if err != nil {
+			log.Error("Failed to clear cache", "error", err)
+			os.Exit(1)
+		}
+	}
+
+	if config.GetEnv().IsPrimaryNode {
+		runMigrations(log)
+	} else {
+		log.Info("Skipping migrations (IS_PRIMARY_NODE is false)")
+	}
 
 	// create directories that used for backups and restore
 	err := files_utils.EnsureDirectories([]string{
@@ -96,7 +117,9 @@ func main() {
 	enableCors(ginApp)
 	setUpRoutes(ginApp)
 	setUpDependencies()
+
 	runBackgroundTasks(log)
+
 	mountFrontend(ginApp)
 
 	startServerWithGracefulShutdown(log, ginApp)
@@ -183,6 +206,7 @@ func setUpRoutes(r *gin.Engine) {
 	userController := users_controllers.GetUserController()
 	userController.RegisterRoutes(v1)
 	system_healthcheck.GetHealthcheckController().RegisterRoutes(v1)
+	backups.GetBackupController().RegisterPublicRoutes(v1)
 
 	// Setup auth middleware
 	userService := users_services.GetUserService()
@@ -218,31 +242,80 @@ func setUpDependencies() {
 	notifiers.SetupDependencies()
 	storages.SetupDependencies()
 	backups_config.SetupDependencies()
+	task_cancellation.SetupDependencies()
 }
 
 func runBackgroundTasks(log *slog.Logger) {
 	log.Info("Preparing to run background tasks...")
 
+	// Create context that will be cancelled on shutdown
+	ctx, cancel := context.WithCancel(context.Background())
+
+	// Set up signal handling for graceful shutdown
+	quit := make(chan os.Signal, 1)
+	signal.Notify(quit, os.Interrupt, syscall.SIGTERM)
+	go func() {
+		<-quit
+		log.Info("Shutdown signal received, cancelling all background tasks")
+		cancel()
+	}()
+
 	err := files_utils.CleanFolder(config.GetEnv().TempFolder)
 	if err != nil {
 		log.Error("Failed to clean temp folder", "error", err)
 	}
 
-	go runWithPanicLogging(log, "backup background service", func() {
-		backups.GetBackupBackgroundService().Run()
-	})
+	if config.GetEnv().IsPrimaryNode {
+		log.Info("Starting primary node background tasks...")
 
-	go runWithPanicLogging(log, "restore background service", func() {
-		restores.GetRestoreBackgroundService().Run()
-	})
+		go runWithPanicLogging(log, "backup background service", func() {
+			backuping.GetBackupsScheduler().Run(ctx)
+		})
 
-	go runWithPanicLogging(log, "healthcheck attempt background service", func() {
-		healthcheck_attempt.GetHealthcheckAttemptBackgroundService().Run()
-	})
+		go runWithPanicLogging(log, "backup cleaner background service", func() {
+			backuping.GetBackupCleaner().Run(ctx)
+		})
 
-	go runWithPanicLogging(log, "audit log cleanup background service", func() {
-		audit_logs.GetAuditLogBackgroundService().Run()
-	})
+		go runWithPanicLogging(log, "restore background service", func() {
+			restoring.GetRestoresScheduler().Run(ctx)
+		})
+
+		go runWithPanicLogging(log, "healthcheck attempt background service", func() {
+			healthcheck_attempt.GetHealthcheckAttemptBackgroundService().Run(ctx)
+		})
+
+		go runWithPanicLogging(log, "audit log cleanup background service", func() {
+			audit_logs.GetAuditLogBackgroundService().Run(ctx)
+		})
+
+		go runWithPanicLogging(log, "download token cleanup background service", func() {
+			backups_download.GetDownloadTokenBackgroundService().Run(ctx)
+		})
+
+		go runWithPanicLogging(log, "backup nodes registry background service", func() {
+			backuping.GetBackupNodesRegistry().Run(ctx)
+		})
+
+		go runWithPanicLogging(log, "restore nodes registry background service", func() {
+			restoring.GetRestoreNodesRegistry().Run(ctx)
+		})
+	} else {
+		log.Info("Skipping primary node tasks as not primary node")
+	}
+
+	if config.GetEnv().IsProcessingNode {
+		log.Info("Starting backup node background tasks...")
+
+		go runWithPanicLogging(log, "backup node", func() {
+			backuping.GetBackuperNode().Run(ctx)
+		})
+
+		go runWithPanicLogging(log, "restore node", func() {
+			restoring.GetRestorerNode().Run(ctx)
+		})
+	} else {
+		log.Info("Skipping backup/restore node tasks as not backup node")
+	}
 }
 
 func runWithPanicLogging(log *slog.Logger, serviceName string, fn func()) {
@@ -285,16 +358,13 @@ func generateSwaggerDocs(log *slog.Logger) {
 func runMigrations(log *slog.Logger) {
 	log.Info("Running database migrations...")
 
-	cmd := exec.Command("goose", "up")
+	cmd := exec.Command("goose", "-dir", "./migrations", "up")
 	cmd.Env = append(
 		os.Environ(),
 		"GOOSE_DRIVER=postgres",
 		"GOOSE_DBSTRING="+config.GetEnv().DatabaseDsn,
 	)
 
-	// Set the working directory to where migrations are located
-	cmd.Dir = "./migrations"
-
 	output, err := cmd.CombinedOutput()
 	if err != nil {
 		log.Error("Failed to run migrations", "error", err, "output", string(output))

backend/docker-compose.yml.example

@@ -19,6 +19,21 @@ services:
     command: -p 5437
     shm_size: 10gb
 
+  # Valkey for caching
+  dev-valkey:
+    image: valkey/valkey:9.0.1-alpine
+    ports:
+      - "${VALKEY_PORT:-6379}:6379"
+    volumes:
+      - ./valkey-data:/data
+    container_name: dev-valkey
+    healthcheck:
+      test: ["CMD", "valkey-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 20s
+
   # Test MinIO container
   test-minio:
     image: minio/minio:latest

backend/go.mod

@@ -1,6 +1,6 @@
 module databasus-backend
 
-go 1.24.4
+go 1.24.9
 
 require (
 	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.20.0
@@ -25,9 +25,9 @@ require (
 	github.com/swaggo/files v1.0.1
 	github.com/swaggo/gin-swagger v1.6.0
 	github.com/swaggo/swag v1.16.4
+	github.com/valkey-io/valkey-go v1.0.70
 	go.mongodb.org/mongo-driver v1.17.6
 	golang.org/x/crypto v0.46.0
-	golang.org/x/time v0.14.0
 	gorm.io/driver/postgres v1.5.11
 	gorm.io/gorm v1.26.1
 )
@@ -185,6 +185,7 @@ require (
 	go.yaml.in/yaml/v2 v2.4.3 // indirect
 	golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546 // indirect
 	golang.org/x/term v0.38.0 // indirect
+	golang.org/x/time v0.14.0 // indirect
 	gopkg.in/natefinch/lumberjack.v2 v2.2.1 // indirect
 	gopkg.in/validator.v2 v2.0.1 // indirect
 	moul.io/http2curl/v2 v2.3.0 // indirect
@@ -269,7 +270,7 @@ require (
 	go.opentelemetry.io/otel/metric v1.38.0 // indirect
 	go.opentelemetry.io/otel/trace v1.38.0 // indirect
 	golang.org/x/arch v0.17.0 // indirect
-	golang.org/x/net v0.47.0 // indirect
+	golang.org/x/net v0.48.0 // indirect
 	golang.org/x/oauth2 v0.33.0
 	golang.org/x/sync v0.19.0 // indirect
 	golang.org/x/sys v0.39.0 // indirect

backend/go.sum

@@ -539,8 +539,8 @@ github.com/onsi/ginkgo v1.16.5 h1:8xi0RTUf59SOSfEtZMvwTvXYMzG4gV23XVHOZiXNtnE=
 github.com/onsi/ginkgo v1.16.5/go.mod h1:+E8gABHa3K6zRBolWtd+ROzc/U5bkGt0FwiG042wbpU=
 github.com/onsi/ginkgo/v2 v2.17.3 h1:oJcvKpIb7/8uLpDDtnQuf18xVnwKp8DTD7DQ6gTd/MU=
 github.com/onsi/ginkgo/v2 v2.17.3/go.mod h1:nP2DPOQoNsQmsVyv5rDA8JkXQoCs6goXIvr/PRJ1eCc=
-github.com/onsi/gomega v1.37.0 h1:CdEG8g0S133B4OswTDC/5XPSzE1OeP29QOioj2PID2Y=
-github.com/onsi/gomega v1.37.0/go.mod h1:8D9+Txp43QWKhM24yyOBEdpkzN8FvJyAwecBgsU4KU0=
+github.com/onsi/gomega v1.38.3 h1:eTX+W6dobAYfFeGC2PV6RwXRu/MyT+cQguijutvkpSM=
+github.com/onsi/gomega v1.38.3/go.mod h1:ZCU1pkQcXDO5Sl9/VVEGlDyp+zm0m1cmeG5TOzLgdh4=
 github.com/oracle/oci-go-sdk/v65 v65.104.0 h1:l9awEvzWvxmYhy/97A0hZ87pa7BncYXmcO/S8+rvgK0=
 github.com/oracle/oci-go-sdk/v65 v65.104.0/go.mod h1:oB8jFGVc/7/zJ+DbleE8MzGHjhs2ioCz5stRTdZdIcY=
 github.com/panjf2000/ants/v2 v2.11.3 h1:AfI0ngBoXJmYOpDh9m516vjqoUu2sLrIVgppI9TZVpg=
@@ -660,6 +660,8 @@ github.com/ulikunitz/xz v0.5.15 h1:9DNdB5s+SgV3bQ2ApL10xRc35ck0DuIX/isZvIk+ubY=
 github.com/ulikunitz/xz v0.5.15/go.mod h1:nbz6k7qbPmH4IRqmfOplQw/tblSgqTqBwxkY0oWt/14=
 github.com/unknwon/goconfig v1.0.0 h1:rS7O+CmUdli1T+oDm7fYj1MwqNWtEJfNj+FqcUHML8U=
 github.com/unknwon/goconfig v1.0.0/go.mod h1:qu2ZQ/wcC/if2u32263HTVC39PeOQRSmidQk3DuDFQ8=
+github.com/valkey-io/valkey-go v1.0.70 h1:mjYNT8qiazxDAJ0QNQ8twWT/YFOkOoRd40ERV2mB49Y=
+github.com/valkey-io/valkey-go v1.0.70/go.mod h1:VGhZ6fs68Qrn2+OhH+6waZH27bjpgQOiLyUQyXuYK5k=
 github.com/wk8/go-ordered-map/v2 v2.1.8 h1:5h/BUHu93oj4gIdvHHHGsScSTMijfx5PeYkE/fJgbpc=
 github.com/wk8/go-ordered-map/v2 v2.1.8/go.mod h1:5nJHM5DyteebpVlHnWMV0rPz6Zp7+xBAnxjb1X5vnTw=
 github.com/xanzy/ssh-agent v0.3.3 h1:+/15pJfg/RsTxqYcX6fHqOXZwwMP+2VyYWJeWM2qQFM=
@@ -720,6 +722,8 @@ go.uber.org/mock v0.5.0 h1:KAMbZvZPyBPWgD14IrIQ38QCyjwpvVVV6K/bHl1IwQU=
 go.uber.org/mock v0.5.0/go.mod h1:ge71pBPLYDk7QIi1LupWxdAykm7KIEFchiOqd6z7qMM=
 go.yaml.in/yaml/v2 v2.4.3 h1:6gvOSjQoTB3vt1l+CU+tSyi/HOjfOjRLJ4YwYZGwRO0=
 go.yaml.in/yaml/v2 v2.4.3/go.mod h1:zSxWcmIDjOzPXpjlTTbAsKokqkDNAVtZO0WOMiT90s8=
+go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
+go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
 golang.org/x/arch v0.17.0 h1:4O3dfLzd+lQewptAHqjewQZQDyEdejz3VwgeYwkZneU=
 golang.org/x/arch v0.17.0/go.mod h1:bdwinDaKcfZUGpH09BB7ZmOfhalA8lQdzl62l8gGWsk=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
@@ -818,8 +822,8 @@ golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
 golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44=
 golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
 golang.org/x/net v0.33.0/go.mod h1:HXLR5J+9DxmrqMwG9qjGCxZ+zKXxBru04zlTvWlWuN4=
-golang.org/x/net v0.47.0 h1:Mx+4dIFzqraBXUugkia1OOvlD6LemFo1ALMHjrXDOhY=
-golang.org/x/net v0.47.0/go.mod h1:/jNxtkgq5yWUGYkaZGqo27cfGZ1c5Nen03aYrrKpVRU=
+golang.org/x/net v0.48.0 h1:zyQRTTrjc33Lhh0fBgT/H3oZq9WuvRR5gPC70xpDiQU=
+golang.org/x/net v0.48.0/go.mod h1:+ndRgGjkh8FGtu1w1FGbEC31if4VrNVMuKTgcAAnQRY=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=

backend/internal/config/config.go

@@ -29,6 +29,16 @@ type EnvVariables struct {
 	MariadbInstallDir    string            `env:"MARIADB_INSTALL_DIR"`
 	MongodbInstallDir    string            `env:"MONGODB_INSTALL_DIR"`
 
+	TestLocalhost string `env:"TEST_LOCALHOST"`
+
+	ShowDbInstallationVerificationLogs bool `env:"SHOW_DB_INSTALLATION_VERIFICATION_LOGS"`
+	IsSkipExternalResourcesTests       bool `env:"IS_SKIP_EXTERNAL_RESOURCES_TESTS"`
+
+	IsManyNodesMode          bool `env:"IS_MANY_NODES_MODE"`
+	IsPrimaryNode            bool `env:"IS_PRIMARY_NODE"`
+	IsProcessingNode         bool `env:"IS_PROCESSING_NODE"`
+	NodeNetworkThroughputMBs int  `env:"NODE_NETWORK_THROUGHPUT_MBPS"`
+
 	DataFolder    string
 	TempFolder    string
 	SecretKeyPath string
@@ -79,6 +89,13 @@ type EnvVariables struct {
 	TestMongodb70Port string `env:"TEST_MONGODB_70_PORT"`
 	TestMongodb82Port string `env:"TEST_MONGODB_82_PORT"`
 
+	// Valkey
+	ValkeyHost     string `env:"VALKEY_HOST"     required:"true"`
+	ValkeyPort     string `env:"VALKEY_PORT"     required:"true"`
+	ValkeyUsername string `env:"VALKEY_USERNAME"`
+	ValkeyPassword string `env:"VALKEY_PASSWORD"`
+	ValkeyIsSsl    bool   `env:"VALKEY_IS_SSL"   required:"true"`
+
 	// oauth
 	GitHubClientID     string `env:"GITHUB_CLIENT_ID"`
 	GitHubClientSecret string `env:"GITHUB_CLIENT_SECRET"`
@@ -155,6 +172,16 @@ func loadEnvVariables() {
 		os.Exit(1)
 	}
 
+	// Set default value for ShowDbInstallationVerificationLogs if not defined
+	if os.Getenv("SHOW_DB_INSTALLATION_VERIFICATION_LOGS") == "" {
+		env.ShowDbInstallationVerificationLogs = true
+	}
+
+	// Set default value for IsSkipExternalTests if not defined
+	if os.Getenv("IS_SKIP_EXTERNAL_RESOURCES_TESTS") == "" {
+		env.IsSkipExternalResourcesTests = false
+	}
+
 	for _, arg := range os.Args {
 		if strings.Contains(arg, "test") {
 			env.IsTesting = true
@@ -178,16 +205,59 @@ func loadEnvVariables() {
 	log.Info("ENV_MODE loaded", "mode", env.EnvMode)
 
 	env.PostgresesInstallDir = filepath.Join(backendRoot, "tools", "postgresql")
-	tools.VerifyPostgresesInstallation(log, env.EnvMode, env.PostgresesInstallDir)
+	tools.VerifyPostgresesInstallation(
+		log,
+		env.EnvMode,
+		env.PostgresesInstallDir,
+		env.ShowDbInstallationVerificationLogs,
+	)
 
 	env.MysqlInstallDir = filepath.Join(backendRoot, "tools", "mysql")
-	tools.VerifyMysqlInstallation(log, env.EnvMode, env.MysqlInstallDir)
+	tools.VerifyMysqlInstallation(
+		log,
+		env.EnvMode,
+		env.MysqlInstallDir,
+		env.ShowDbInstallationVerificationLogs,
+	)
 
 	env.MariadbInstallDir = filepath.Join(backendRoot, "tools", "mariadb")
-	tools.VerifyMariadbInstallation(log, env.EnvMode, env.MariadbInstallDir)
+	tools.VerifyMariadbInstallation(
+		log,
+		env.EnvMode,
+		env.MariadbInstallDir,
+		env.ShowDbInstallationVerificationLogs,
+	)
 
 	env.MongodbInstallDir = filepath.Join(backendRoot, "tools", "mongodb")
-	tools.VerifyMongodbInstallation(log, env.EnvMode, env.MongodbInstallDir)
+	tools.VerifyMongodbInstallation(
+		log,
+		env.EnvMode,
+		env.MongodbInstallDir,
+		env.ShowDbInstallationVerificationLogs,
+	)
+
+	if env.NodeNetworkThroughputMBs == 0 {
+		env.NodeNetworkThroughputMBs = 125 // 1 Gbit/s
+	}
+
+	if !env.IsManyNodesMode {
+		env.IsPrimaryNode = true
+		env.IsProcessingNode = true
+	}
+
+	if env.TestLocalhost == "" {
+		env.TestLocalhost = "localhost"
+	}
+
+	// Valkey
+	if env.ValkeyHost == "" {
+		log.Error("VALKEY_HOST is empty")
+		os.Exit(1)
+	}
+	if env.ValkeyPort == "" {
+		log.Error("VALKEY_PORT is empty")
+		os.Exit(1)
+	}
 
 	// Store the data and temp folders one level below the root
 	// (projectRoot/databasus-data -> /databasus-data)

backend/internal/features/audit_logs/background_service.go

@@ -1,33 +1,51 @@
 package audit_logs
 
 import (
-	"databasus-backend/internal/config"
+	"context"
+	"fmt"
 	"log/slog"
+	"sync"
+	"sync/atomic"
 	"time"
 )
 
 type AuditLogBackgroundService struct {
 	auditLogService *AuditLogService
 	logger          *slog.Logger
+
+	runOnce sync.Once
+	hasRun  atomic.Bool
 }
 
-func (s *AuditLogBackgroundService) Run() {
-	s.logger.Info("Starting audit log cleanup background service")
+func (s *AuditLogBackgroundService) Run(ctx context.Context) {
+	wasAlreadyRun := s.hasRun.Load()
 
-	if config.IsShouldShutdown() {
-		return
-	}
+	s.runOnce.Do(func() {
+		s.hasRun.Store(true)
 
-	for {
-		if config.IsShouldShutdown() {
+		s.logger.Info("Starting audit log cleanup background service")
+
+		if ctx.Err() != nil {
 			return
 		}
 
-		if err := s.cleanOldAuditLogs(); err != nil {
-			s.logger.Error("Failed to clean old audit logs", "error", err)
-		}
+		ticker := time.NewTicker(1 * time.Hour)
+		defer ticker.Stop()
 
-		time.Sleep(1 * time.Hour)
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case <-ticker.C:
+				if err := s.cleanOldAuditLogs(); err != nil {
+					s.logger.Error("Failed to clean old audit logs", "error", err)
+				}
+			}
+		}
+	})
+
+	if wasAlreadyRun {
+		panic(fmt.Sprintf("%T.Run() called multiple times", s))
 	}
 }
 

backend/internal/features/audit_logs/di.go

@@ -1,6 +1,9 @@
 package audit_logs
 
 import (
+	"sync"
+	"sync/atomic"
+
 	users_services "databasus-backend/internal/features/users/services"
 	"databasus-backend/internal/util/logger"
 )
@@ -14,8 +17,10 @@ var auditLogController = &AuditLogController{
 	auditLogService,
 }
 var auditLogBackgroundService = &AuditLogBackgroundService{
-	auditLogService,
-	logger.GetLogger(),
+	auditLogService: auditLogService,
+	logger:          logger.GetLogger(),
+	runOnce:         sync.Once{},
+	hasRun:          atomic.Bool{},
 }
 
 func GetAuditLogService() *AuditLogService {
@@ -30,8 +35,23 @@ func GetAuditLogBackgroundService() *AuditLogBackgroundService {
 	return auditLogBackgroundService
 }
 
+var (
+	setupOnce sync.Once
+	isSetup   atomic.Bool
+)
+
 func SetupDependencies() {
-	users_services.GetUserService().SetAuditLogWriter(auditLogService)
-	users_services.GetSettingsService().SetAuditLogWriter(auditLogService)
-	users_services.GetManagementService().SetAuditLogWriter(auditLogService)
+	wasAlreadySetup := isSetup.Load()
+
+	setupOnce.Do(func() {
+		users_services.GetUserService().SetAuditLogWriter(auditLogService)
+		users_services.GetSettingsService().SetAuditLogWriter(auditLogService)
+		users_services.GetManagementService().SetAuditLogWriter(auditLogService)
+
+		isSetup.Store(true)
+	})
+
+	if wasAlreadySetup {
+		logger.GetLogger().Warn("SetupDependencies called multiple times, ignoring subsequent call")
+	}
 }

backend/internal/features/backups/backups/background_service.go

@@ -1,254 +0,0 @@
-package backups
-
-import (
-	"databasus-backend/internal/config"
-	backups_config "databasus-backend/internal/features/backups/config"
-	"databasus-backend/internal/features/storages"
-	"databasus-backend/internal/util/encryption"
-	"databasus-backend/internal/util/period"
-	"log/slog"
-	"time"
-)
-
-type BackupBackgroundService struct {
-	backupService       *BackupService
-	backupRepository    *BackupRepository
-	backupConfigService *backups_config.BackupConfigService
-	storageService      *storages.StorageService
-
-	lastBackupTime time.Time
-	logger         *slog.Logger
-}
-
-func (s *BackupBackgroundService) Run() {
-	s.lastBackupTime = time.Now().UTC()
-
-	if err := s.failBackupsInProgress(); err != nil {
-		s.logger.Error("Failed to fail backups in progress", "error", err)
-		panic(err)
-	}
-
-	if config.IsShouldShutdown() {
-		return
-	}
-
-	for {
-		if config.IsShouldShutdown() {
-			return
-		}
-
-		if err := s.cleanOldBackups(); err != nil {
-			s.logger.Error("Failed to clean old backups", "error", err)
-		}
-
-		if err := s.runPendingBackups(); err != nil {
-			s.logger.Error("Failed to run pending backups", "error", err)
-		}
-
-		s.lastBackupTime = time.Now().UTC()
-		time.Sleep(1 * time.Minute)
-	}
-}
-
-func (s *BackupBackgroundService) IsBackupsWorkerRunning() bool {
-	// if last backup time is more than 5 minutes ago, return false
-	return s.lastBackupTime.After(time.Now().UTC().Add(-5 * time.Minute))
-}
-
-func (s *BackupBackgroundService) failBackupsInProgress() error {
-	backupsInProgress, err := s.backupRepository.FindByStatus(BackupStatusInProgress)
-	if err != nil {
-		return err
-	}
-
-	for _, backup := range backupsInProgress {
-		backupConfig, err := s.backupConfigService.GetBackupConfigByDbId(backup.DatabaseID)
-		if err != nil {
-			s.logger.Error("Failed to get backup config by database ID", "error", err)
-			continue
-		}
-
-		failMessage := "Backup failed due to application restart"
-		backup.FailMessage = &failMessage
-		backup.Status = BackupStatusFailed
-		backup.BackupSizeMb = 0
-
-		s.backupService.SendBackupNotification(
-			backupConfig,
-			backup,
-			backups_config.NotificationBackupFailed,
-			&failMessage,
-		)
-
-		if err := s.backupRepository.Save(backup); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-func (s *BackupBackgroundService) cleanOldBackups() error {
-	enabledBackupConfigs, err := s.backupConfigService.GetBackupConfigsWithEnabledBackups()
-	if err != nil {
-		return err
-	}
-
-	for _, backupConfig := range enabledBackupConfigs {
-		backupStorePeriod := backupConfig.StorePeriod
-
-		if backupStorePeriod == period.PeriodForever {
-			continue
-		}
-
-		storeDuration := backupStorePeriod.ToDuration()
-		dateBeforeBackupsShouldBeDeleted := time.Now().UTC().Add(-storeDuration)
-
-		oldBackups, err := s.backupRepository.FindBackupsBeforeDate(
-			backupConfig.DatabaseID,
-			dateBeforeBackupsShouldBeDeleted,
-		)
-		if err != nil {
-			s.logger.Error(
-				"Failed to find old backups for database",
-				"databaseId",
-				backupConfig.DatabaseID,
-				"error",
-				err,
-			)
-			continue
-		}
-
-		for _, backup := range oldBackups {
-			storage, err := s.storageService.GetStorageByID(backup.StorageID)
-			if err != nil {
-				s.logger.Error(
-					"Failed to get storage by ID",
-					"storageId",
-					backup.StorageID,
-					"error",
-					err,
-				)
-				continue
-			}
-
-			encryptor := encryption.GetFieldEncryptor()
-			err = storage.DeleteFile(encryptor, backup.ID)
-			if err != nil {
-				s.logger.Error("Failed to delete backup file", "backupId", backup.ID, "error", err)
-			}
-
-			if err := s.backupRepository.DeleteByID(backup.ID); err != nil {
-				s.logger.Error("Failed to delete old backup", "backupId", backup.ID, "error", err)
-				continue
-			}
-
-			s.logger.Info(
-				"Deleted old backup",
-				"backupId",
-				backup.ID,
-				"databaseId",
-				backupConfig.DatabaseID,
-			)
-		}
-	}
-
-	return nil
-}
-
-func (s *BackupBackgroundService) runPendingBackups() error {
-	enabledBackupConfigs, err := s.backupConfigService.GetBackupConfigsWithEnabledBackups()
-	if err != nil {
-		return err
-	}
-
-	for _, backupConfig := range enabledBackupConfigs {
-		if backupConfig.BackupInterval == nil {
-			continue
-		}
-
-		lastBackup, err := s.backupRepository.FindLastByDatabaseID(backupConfig.DatabaseID)
-		if err != nil {
-			s.logger.Error(
-				"Failed to get last backup for database",
-				"databaseId",
-				backupConfig.DatabaseID,
-				"error",
-				err,
-			)
-			continue
-		}
-
-		var lastBackupTime *time.Time
-		if lastBackup != nil {
-			lastBackupTime = &lastBackup.CreatedAt
-		}
-
-		remainedBackupTryCount := s.GetRemainedBackupTryCount(lastBackup)
-
-		if backupConfig.BackupInterval.ShouldTriggerBackup(time.Now().UTC(), lastBackupTime) ||
-			remainedBackupTryCount > 0 {
-			s.logger.Info(
-				"Triggering scheduled backup",
-				"databaseId",
-				backupConfig.DatabaseID,
-				"intervalType",
-				backupConfig.BackupInterval.Interval,
-			)
-
-			go s.backupService.MakeBackup(backupConfig.DatabaseID, remainedBackupTryCount == 1)
-			s.logger.Info(
-				"Successfully triggered scheduled backup",
-				"databaseId",
-				backupConfig.DatabaseID,
-			)
-		}
-	}
-
-	return nil
-}
-
-// GetRemainedBackupTryCount returns the number of remaining backup tries for a given backup.
-// If the backup is not failed or the backup config does not allow retries, it returns 0.
-// If the backup is failed and the backup config allows retries, it returns the number of remaining tries.
-// If the backup is failed and the backup config does not allow retries, it returns 0.
-func (s *BackupBackgroundService) GetRemainedBackupTryCount(lastBackup *Backup) int {
-	if lastBackup == nil {
-		return 0
-	}
-
-	if lastBackup.Status != BackupStatusFailed {
-		return 0
-	}
-
-	backupConfig, err := s.backupConfigService.GetBackupConfigByDbId(lastBackup.DatabaseID)
-	if err != nil {
-		s.logger.Error("Failed to get backup config by database ID", "error", err)
-		return 0
-	}
-
-	if !backupConfig.IsRetryIfFailed {
-		return 0
-	}
-
-	maxFailedTriesCount := backupConfig.MaxFailedTriesCount
-
-	lastBackups, err := s.backupRepository.FindByDatabaseIDWithLimit(
-		lastBackup.DatabaseID,
-		maxFailedTriesCount,
-	)
-	if err != nil {
-		s.logger.Error("Failed to find last backups by database ID", "error", err)
-		return 0
-	}
-
-	lastFailedBackups := make([]*Backup, 0)
-
-	for _, backup := range lastBackups {
-		if backup.Status == BackupStatusFailed {
-			lastFailedBackups = append(lastFailedBackups, backup)
-		}
-	}
-
-	return maxFailedTriesCount - len(lastFailedBackups)
-}

backend/internal/features/backups/backups/background_service_test.go

@@ -1,389 +0,0 @@
-package backups
-
-import (
-	backups_config "databasus-backend/internal/features/backups/config"
-	"databasus-backend/internal/features/databases"
-	"databasus-backend/internal/features/intervals"
-	"databasus-backend/internal/features/notifiers"
-	"databasus-backend/internal/features/storages"
-	users_enums "databasus-backend/internal/features/users/enums"
-	users_testing "databasus-backend/internal/features/users/testing"
-	workspaces_testing "databasus-backend/internal/features/workspaces/testing"
-	"databasus-backend/internal/util/period"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/assert"
-)
-
-func Test_MakeBackupForDbHavingBackupDayAgo_BackupCreated(t *testing.T) {
-	// setup data
-	user := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
-	router := CreateTestRouter()
-	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", user, router)
-	storage := storages.CreateTestStorage(workspace.ID)
-	notifier := notifiers.CreateTestNotifier(workspace.ID)
-	database := databases.CreateTestDatabase(workspace.ID, storage, notifier)
-
-	defer func() {
-		// cleanup backups first
-		backups, _ := backupRepository.FindByDatabaseID(database.ID)
-		for _, backup := range backups {
-			backupRepository.DeleteByID(backup.ID)
-		}
-
-		databases.RemoveTestDatabase(database)
-		time.Sleep(50 * time.Millisecond)
-		notifiers.RemoveTestNotifier(notifier)
-		storages.RemoveTestStorage(storage.ID)
-		workspaces_testing.RemoveTestWorkspace(workspace, router)
-	}()
-
-	// Enable backups for the database
-	backupConfig, err := backups_config.GetBackupConfigService().GetBackupConfigByDbId(database.ID)
-	assert.NoError(t, err)
-
-	timeOfDay := "04:00"
-	backupConfig.BackupInterval = &intervals.Interval{
-		Interval:  intervals.IntervalDaily,
-		TimeOfDay: &timeOfDay,
-	}
-	backupConfig.IsBackupsEnabled = true
-	backupConfig.StorePeriod = period.PeriodWeek
-	backupConfig.Storage = storage
-	backupConfig.StorageID = &storage.ID
-
-	_, err = backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig)
-	assert.NoError(t, err)
-
-	// add old backup
-	backupRepository.Save(&Backup{
-		DatabaseID: database.ID,
-		StorageID:  storage.ID,
-
-		Status: BackupStatusCompleted,
-
-		CreatedAt: time.Now().UTC().Add(-24 * time.Hour),
-	})
-
-	GetBackupBackgroundService().runPendingBackups()
-
-	// Wait for backup to complete (runs in goroutine)
-	WaitForBackupCompletion(t, database.ID, 1, 10*time.Second)
-
-	// assertions
-	backups, err := backupRepository.FindByDatabaseID(database.ID)
-	assert.NoError(t, err)
-	assert.Len(t, backups, 2)
-}
-
-func Test_MakeBackupForDbHavingHourAgoBackup_BackupSkipped(t *testing.T) {
-	// setup data
-	user := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
-	router := CreateTestRouter()
-	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", user, router)
-	storage := storages.CreateTestStorage(workspace.ID)
-	notifier := notifiers.CreateTestNotifier(workspace.ID)
-	database := databases.CreateTestDatabase(workspace.ID, storage, notifier)
-
-	defer func() {
-		// cleanup backups first
-		backups, _ := backupRepository.FindByDatabaseID(database.ID)
-		for _, backup := range backups {
-			backupRepository.DeleteByID(backup.ID)
-		}
-
-		databases.RemoveTestDatabase(database)
-		time.Sleep(50 * time.Millisecond)
-		notifiers.RemoveTestNotifier(notifier)
-		storages.RemoveTestStorage(storage.ID)
-		workspaces_testing.RemoveTestWorkspace(workspace, router)
-	}()
-
-	// Enable backups for the database
-	backupConfig, err := backups_config.GetBackupConfigService().GetBackupConfigByDbId(database.ID)
-	assert.NoError(t, err)
-
-	timeOfDay := "04:00"
-	backupConfig.BackupInterval = &intervals.Interval{
-		Interval:  intervals.IntervalDaily,
-		TimeOfDay: &timeOfDay,
-	}
-	backupConfig.IsBackupsEnabled = true
-	backupConfig.StorePeriod = period.PeriodWeek
-	backupConfig.Storage = storage
-	backupConfig.StorageID = &storage.ID
-
-	_, err = backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig)
-	assert.NoError(t, err)
-
-	// add recent backup (1 hour ago)
-	backupRepository.Save(&Backup{
-		DatabaseID: database.ID,
-		StorageID:  storage.ID,
-
-		Status: BackupStatusCompleted,
-
-		CreatedAt: time.Now().UTC().Add(-1 * time.Hour),
-	})
-
-	GetBackupBackgroundService().runPendingBackups()
-
-	time.Sleep(100 * time.Millisecond)
-
-	// assertions
-	backups, err := backupRepository.FindByDatabaseID(database.ID)
-	assert.NoError(t, err)
-	assert.Len(t, backups, 1) // Should still be 1 backup, no new backup created
-}
-
-func Test_MakeBackupHavingFailedBackupWithoutRetries_BackupSkipped(t *testing.T) {
-	// setup data
-	user := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
-	router := CreateTestRouter()
-	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", user, router)
-	storage := storages.CreateTestStorage(workspace.ID)
-	notifier := notifiers.CreateTestNotifier(workspace.ID)
-	database := databases.CreateTestDatabase(workspace.ID, storage, notifier)
-
-	defer func() {
-		// cleanup backups first
-		backups, _ := backupRepository.FindByDatabaseID(database.ID)
-		for _, backup := range backups {
-			backupRepository.DeleteByID(backup.ID)
-		}
-
-		databases.RemoveTestDatabase(database)
-		time.Sleep(50 * time.Millisecond)
-		notifiers.RemoveTestNotifier(notifier)
-		storages.RemoveTestStorage(storage.ID)
-		workspaces_testing.RemoveTestWorkspace(workspace, router)
-	}()
-
-	// Enable backups for the database with retries disabled
-	backupConfig, err := backups_config.GetBackupConfigService().GetBackupConfigByDbId(database.ID)
-	assert.NoError(t, err)
-
-	timeOfDay := "04:00"
-	backupConfig.BackupInterval = &intervals.Interval{
-		Interval:  intervals.IntervalDaily,
-		TimeOfDay: &timeOfDay,
-	}
-	backupConfig.IsBackupsEnabled = true
-	backupConfig.StorePeriod = period.PeriodWeek
-	backupConfig.Storage = storage
-	backupConfig.StorageID = &storage.ID
-	backupConfig.IsRetryIfFailed = false
-	backupConfig.MaxFailedTriesCount = 0
-
-	_, err = backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig)
-	assert.NoError(t, err)
-
-	// add failed backup
-	failMessage := "backup failed"
-	backupRepository.Save(&Backup{
-		DatabaseID: database.ID,
-		StorageID:  storage.ID,
-
-		Status:      BackupStatusFailed,
-		FailMessage: &failMessage,
-
-		CreatedAt: time.Now().UTC().Add(-1 * time.Hour),
-	})
-
-	GetBackupBackgroundService().runPendingBackups()
-
-	time.Sleep(100 * time.Millisecond)
-
-	// assertions
-	backups, err := backupRepository.FindByDatabaseID(database.ID)
-	assert.NoError(t, err)
-	assert.Len(t, backups, 1) // Should still be 1 backup, no retry attempted
-}
-
-func Test_MakeBackupHavingFailedBackupWithRetries_BackupCreated(t *testing.T) {
-	// setup data
-	user := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
-	router := CreateTestRouter()
-	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", user, router)
-	storage := storages.CreateTestStorage(workspace.ID)
-	notifier := notifiers.CreateTestNotifier(workspace.ID)
-	database := databases.CreateTestDatabase(workspace.ID, storage, notifier)
-
-	defer func() {
-		// cleanup backups first
-		backups, _ := backupRepository.FindByDatabaseID(database.ID)
-		for _, backup := range backups {
-			backupRepository.DeleteByID(backup.ID)
-		}
-
-		databases.RemoveTestDatabase(database)
-		time.Sleep(50 * time.Millisecond)
-		notifiers.RemoveTestNotifier(notifier)
-		storages.RemoveTestStorage(storage.ID)
-		workspaces_testing.RemoveTestWorkspace(workspace, router)
-	}()
-
-	// Enable backups for the database with retries enabled
-	backupConfig, err := backups_config.GetBackupConfigService().GetBackupConfigByDbId(database.ID)
-	assert.NoError(t, err)
-
-	timeOfDay := "04:00"
-	backupConfig.BackupInterval = &intervals.Interval{
-		Interval:  intervals.IntervalDaily,
-		TimeOfDay: &timeOfDay,
-	}
-	backupConfig.IsBackupsEnabled = true
-	backupConfig.StorePeriod = period.PeriodWeek
-	backupConfig.Storage = storage
-	backupConfig.StorageID = &storage.ID
-	backupConfig.IsRetryIfFailed = true
-	backupConfig.MaxFailedTriesCount = 3
-
-	_, err = backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig)
-	assert.NoError(t, err)
-
-	// add failed backup
-	failMessage := "backup failed"
-	backupRepository.Save(&Backup{
-		DatabaseID: database.ID,
-		StorageID:  storage.ID,
-
-		Status:      BackupStatusFailed,
-		FailMessage: &failMessage,
-
-		CreatedAt: time.Now().UTC().Add(-1 * time.Hour),
-	})
-
-	GetBackupBackgroundService().runPendingBackups()
-
-	// Wait for backup to complete (runs in goroutine)
-	WaitForBackupCompletion(t, database.ID, 1, 10*time.Second)
-
-	// assertions
-	backups, err := backupRepository.FindByDatabaseID(database.ID)
-	assert.NoError(t, err)
-	assert.Len(t, backups, 2) // Should have 2 backups, retry was attempted
-}
-
-func Test_MakeBackupHavingFailedBackupWithRetries_RetriesCountNotExceeded(t *testing.T) {
-	// setup data
-	user := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
-	router := CreateTestRouter()
-	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", user, router)
-	storage := storages.CreateTestStorage(workspace.ID)
-	notifier := notifiers.CreateTestNotifier(workspace.ID)
-	database := databases.CreateTestDatabase(workspace.ID, storage, notifier)
-
-	defer func() {
-		// cleanup backups first
-		backups, _ := backupRepository.FindByDatabaseID(database.ID)
-		for _, backup := range backups {
-			backupRepository.DeleteByID(backup.ID)
-		}
-
-		databases.RemoveTestDatabase(database)
-		time.Sleep(50 * time.Millisecond)
-		notifiers.RemoveTestNotifier(notifier)
-		storages.RemoveTestStorage(storage.ID)
-		workspaces_testing.RemoveTestWorkspace(workspace, router)
-	}()
-
-	// Enable backups for the database with retries enabled
-	backupConfig, err := backups_config.GetBackupConfigService().GetBackupConfigByDbId(database.ID)
-	assert.NoError(t, err)
-
-	timeOfDay := "04:00"
-	backupConfig.BackupInterval = &intervals.Interval{
-		Interval:  intervals.IntervalDaily,
-		TimeOfDay: &timeOfDay,
-	}
-	backupConfig.IsBackupsEnabled = true
-	backupConfig.StorePeriod = period.PeriodWeek
-	backupConfig.Storage = storage
-	backupConfig.StorageID = &storage.ID
-	backupConfig.IsRetryIfFailed = true
-	backupConfig.MaxFailedTriesCount = 3
-
-	_, err = backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig)
-	assert.NoError(t, err)
-
-	failMessage := "backup failed"
-
-	for i := 0; i < 3; i++ {
-		backupRepository.Save(&Backup{
-			DatabaseID: database.ID,
-			StorageID:  storage.ID,
-
-			Status:      BackupStatusFailed,
-			FailMessage: &failMessage,
-
-			CreatedAt: time.Now().UTC().Add(-1 * time.Hour),
-		})
-	}
-
-	GetBackupBackgroundService().runPendingBackups()
-
-	time.Sleep(100 * time.Millisecond)
-
-	// assertions
-	backups, err := backupRepository.FindByDatabaseID(database.ID)
-	assert.NoError(t, err)
-	assert.Len(t, backups, 3) // Should have 3 backups, not more than max
-}
-
-func Test_MakeBackgroundBackupWhenBakupsDisabled_BackupSkipped(t *testing.T) {
-	user := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
-	router := CreateTestRouter()
-	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", user, router)
-	storage := storages.CreateTestStorage(workspace.ID)
-	notifier := notifiers.CreateTestNotifier(workspace.ID)
-	database := databases.CreateTestDatabase(workspace.ID, storage, notifier)
-
-	defer func() {
-		backups, _ := backupRepository.FindByDatabaseID(database.ID)
-		for _, backup := range backups {
-			backupRepository.DeleteByID(backup.ID)
-		}
-
-		databases.RemoveTestDatabase(database)
-		time.Sleep(50 * time.Millisecond)
-		notifiers.RemoveTestNotifier(notifier)
-		storages.RemoveTestStorage(storage.ID)
-		workspaces_testing.RemoveTestWorkspace(workspace, router)
-	}()
-
-	backupConfig, err := backups_config.GetBackupConfigService().GetBackupConfigByDbId(database.ID)
-	assert.NoError(t, err)
-
-	timeOfDay := "04:00"
-	backupConfig.BackupInterval = &intervals.Interval{
-		Interval:  intervals.IntervalDaily,
-		TimeOfDay: &timeOfDay,
-	}
-	backupConfig.IsBackupsEnabled = false
-	backupConfig.StorePeriod = period.PeriodWeek
-	backupConfig.Storage = storage
-	backupConfig.StorageID = &storage.ID
-
-	_, err = backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig)
-	assert.NoError(t, err)
-
-	// add old backup that would trigger new backup if enabled
-	backupRepository.Save(&Backup{
-		DatabaseID: database.ID,
-		StorageID:  storage.ID,
-
-		Status: BackupStatusCompleted,
-
-		CreatedAt: time.Now().UTC().Add(-24 * time.Hour),
-	})
-
-	GetBackupBackgroundService().runPendingBackups()
-
-	time.Sleep(100 * time.Millisecond)
-
-	backups, err := backupRepository.FindByDatabaseID(database.ID)
-	assert.NoError(t, err)
-	assert.Len(t, backups, 1)
-}

backend/internal/features/backups/backups/backup_context_manager.go

@@ -1,60 +0,0 @@
-package backups
-
-import (
-	"context"
-	"sync"
-
-	"github.com/google/uuid"
-)
-
-type BackupContextManager struct {
-	mu               sync.RWMutex
-	cancelFuncs      map[uuid.UUID]context.CancelFunc
-	cancelledBackups map[uuid.UUID]bool
-}
-
-func NewBackupContextManager() *BackupContextManager {
-	return &BackupContextManager{
-		cancelFuncs:      make(map[uuid.UUID]context.CancelFunc),
-		cancelledBackups: make(map[uuid.UUID]bool),
-	}
-}
-
-func (m *BackupContextManager) RegisterBackup(backupID uuid.UUID, cancelFunc context.CancelFunc) {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-	m.cancelFuncs[backupID] = cancelFunc
-	delete(m.cancelledBackups, backupID)
-}
-
-func (m *BackupContextManager) CancelBackup(backupID uuid.UUID) error {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-
-	if m.cancelledBackups[backupID] {
-		return nil
-	}
-
-	cancelFunc, exists := m.cancelFuncs[backupID]
-	if exists {
-		cancelFunc()
-		delete(m.cancelFuncs, backupID)
-	}
-
-	m.cancelledBackups[backupID] = true
-
-	return nil
-}
-
-func (m *BackupContextManager) IsCancelled(backupID uuid.UUID) bool {
-	m.mu.RLock()
-	defer m.mu.RUnlock()
-	return m.cancelledBackups[backupID]
-}
-
-func (m *BackupContextManager) UnregisterBackup(backupID uuid.UUID) {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-	delete(m.cancelFuncs, backupID)
-	delete(m.cancelledBackups, backupID)
-}

backend/internal/features/backups/backups/backuping/backuper.go

@@ -0,0 +1,427 @@
+package backuping
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log/slog"
+	"slices"
+	"strings"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	"github.com/google/uuid"
+
+	"databasus-backend/internal/config"
+	backups_core "databasus-backend/internal/features/backups/backups/core"
+	backups_config "databasus-backend/internal/features/backups/config"
+	"databasus-backend/internal/features/databases"
+	"databasus-backend/internal/features/storages"
+	tasks_cancellation "databasus-backend/internal/features/tasks/cancellation"
+	workspaces_services "databasus-backend/internal/features/workspaces/services"
+	util_encryption "databasus-backend/internal/util/encryption"
+)
+
+const (
+	heartbeatTickerInterval     = 15 * time.Second
+	backuperHeathcheckThreshold = 5 * time.Minute
+)
+
+type BackuperNode struct {
+	databaseService     *databases.DatabaseService
+	fieldEncryptor      util_encryption.FieldEncryptor
+	workspaceService    *workspaces_services.WorkspaceService
+	backupRepository    *backups_core.BackupRepository
+	backupConfigService *backups_config.BackupConfigService
+	storageService      *storages.StorageService
+	notificationSender  backups_core.NotificationSender
+	backupCancelManager *tasks_cancellation.TaskCancelManager
+	backupNodesRegistry *BackupNodesRegistry
+	logger              *slog.Logger
+	createBackupUseCase backups_core.CreateBackupUsecase
+	nodeID              uuid.UUID
+
+	lastHeartbeat time.Time
+
+	runOnce sync.Once
+	hasRun  atomic.Bool
+}
+
+func (n *BackuperNode) Run(ctx context.Context) {
+	wasAlreadyRun := n.hasRun.Load()
+
+	n.runOnce.Do(func() {
+		n.hasRun.Store(true)
+
+		n.lastHeartbeat = time.Now().UTC()
+
+		throughputMBs := config.GetEnv().NodeNetworkThroughputMBs
+
+		backupNode := BackupNode{
+			ID:            n.nodeID,
+			ThroughputMBs: throughputMBs,
+			LastHeartbeat: time.Now().UTC(),
+		}
+
+		if err := n.backupNodesRegistry.HearthbeatNodeInRegistry(time.Now().UTC(), backupNode); err != nil {
+			n.logger.Error("Failed to register node in registry", "error", err)
+			panic(err)
+		}
+
+		backupHandler := func(backupID uuid.UUID, isCallNotifier bool) {
+			go func() {
+				n.MakeBackup(backupID, isCallNotifier)
+				if err := n.backupNodesRegistry.PublishBackupCompletion(n.nodeID, backupID); err != nil {
+					n.logger.Error(
+						"Failed to publish backup completion",
+						"error",
+						err,
+						"backupID",
+						backupID,
+					)
+				}
+			}()
+		}
+
+		err := n.backupNodesRegistry.SubscribeNodeForBackupsAssignment(n.nodeID, backupHandler)
+		if err != nil {
+			n.logger.Error("Failed to subscribe to backup assignments", "error", err)
+			panic(err)
+		}
+		defer func() {
+			if err := n.backupNodesRegistry.UnsubscribeNodeForBackupsAssignments(); err != nil {
+				n.logger.Error("Failed to unsubscribe from backup assignments", "error", err)
+			}
+		}()
+
+		ticker := time.NewTicker(heartbeatTickerInterval)
+		defer ticker.Stop()
+
+		n.logger.Info("Backup node started", "nodeID", n.nodeID, "throughput", throughputMBs)
+
+		for {
+			select {
+			case <-ctx.Done():
+				n.logger.Info("Shutdown signal received, unregistering node", "nodeID", n.nodeID)
+
+				if err := n.backupNodesRegistry.UnregisterNodeFromRegistry(backupNode); err != nil {
+					n.logger.Error("Failed to unregister node from registry", "error", err)
+				}
+
+				return
+			case <-ticker.C:
+				n.sendHeartbeat(&backupNode)
+			}
+		}
+	})
+
+	if wasAlreadyRun {
+		panic(fmt.Sprintf("%T.Run() called multiple times", n))
+	}
+}
+
+func (n *BackuperNode) IsBackuperRunning() bool {
+	return n.lastHeartbeat.After(time.Now().UTC().Add(-backuperHeathcheckThreshold))
+}
+
+func (n *BackuperNode) MakeBackup(backupID uuid.UUID, isCallNotifier bool) {
+	backup, err := n.backupRepository.FindByID(backupID)
+	if err != nil {
+		n.logger.Error("Failed to get backup by ID", "backupId", backupID, "error", err)
+		return
+	}
+
+	databaseID := backup.DatabaseID
+
+	database, err := n.databaseService.GetDatabaseByID(databaseID)
+	if err != nil {
+		n.logger.Error("Failed to get database by ID", "databaseId", databaseID, "error", err)
+		return
+	}
+
+	backupConfig, err := n.backupConfigService.GetBackupConfigByDbId(databaseID)
+	if err != nil {
+		n.logger.Error("Failed to get backup config by database ID", "error", err)
+		return
+	}
+
+	if backupConfig.StorageID == nil {
+		n.logger.Error("Backup config storage ID is not defined")
+		return
+	}
+
+	storage, err := n.storageService.GetStorageByID(*backupConfig.StorageID)
+	if err != nil {
+		n.logger.Error("Failed to get storage by ID", "error", err)
+		return
+	}
+
+	start := time.Now().UTC()
+
+	ctx, cancel := context.WithCancel(context.Background())
+	n.backupCancelManager.RegisterTask(backup.ID, cancel)
+	defer n.backupCancelManager.UnregisterTask(backup.ID)
+
+	backupProgressListener := func(
+		completedMBs float64,
+	) {
+		backup.BackupSizeMb = completedMBs
+		backup.BackupDurationMs = time.Since(start).Milliseconds()
+
+		// Check size limit (0 = unlimited)
+		if backupConfig.MaxBackupSizeMB > 0 &&
+			completedMBs > float64(backupConfig.MaxBackupSizeMB) {
+			errMsg := fmt.Sprintf(
+				"backup size (%.2f MB) exceeded maximum allowed size (%d MB)",
+				completedMBs,
+				backupConfig.MaxBackupSizeMB,
+			)
+
+			backup.Status = backups_core.BackupStatusFailed
+			backup.IsSkipRetry = true
+			backup.FailMessage = &errMsg
+			if err := n.backupRepository.Save(backup); err != nil {
+				n.logger.Error("Failed to save backup with size exceeded error", "error", err)
+			}
+			cancel() // Cancel the backup context
+
+			return
+		}
+
+		if err := n.backupRepository.Save(backup); err != nil {
+			n.logger.Error("Failed to update backup progress", "error", err)
+		}
+	}
+
+	backupMetadata, err := n.createBackupUseCase.Execute(
+		ctx,
+		backup.ID,
+		backupConfig,
+		database,
+		storage,
+		backupProgressListener,
+	)
+	if err != nil {
+		// Check if backup was already marked as failed by progress listener (e.g., size limit exceeded)
+		// If so, skip error handling to avoid overwriting the status
+		currentBackup, fetchErr := n.backupRepository.FindByID(backup.ID)
+		if fetchErr == nil && currentBackup.Status == backups_core.BackupStatusFailed {
+			n.logger.Warn(
+				"Backup already marked as failed by progress listener, skipping error handling",
+				"backupId",
+				backup.ID,
+				"failMessage",
+				*currentBackup.FailMessage,
+			)
+
+			// Still call notification for size limit failures
+			n.SendBackupNotification(
+				backupConfig,
+				currentBackup,
+				backups_config.NotificationBackupFailed,
+				currentBackup.FailMessage,
+			)
+
+			return
+		}
+
+		errMsg := err.Error()
+
+		// Log detailed error information for debugging
+		n.logger.Error("Backup execution failed",
+			"backupId", backup.ID,
+			"databaseId", databaseID,
+			"databaseType", database.Type,
+			"storageId", storage.ID,
+			"storageType", storage.Type,
+			"error", err,
+			"errorMessage", errMsg,
+		)
+
+		// Check if backup was cancelled (not due to shutdown)
+		isCancelled := strings.Contains(errMsg, "backup cancelled") ||
+			strings.Contains(errMsg, "context canceled") ||
+			errors.Is(err, context.Canceled)
+		isShutdown := strings.Contains(errMsg, "shutdown")
+
+		if isCancelled && !isShutdown {
+			n.logger.Warn("Backup was cancelled by user or system",
+				"backupId", backup.ID,
+				"isCancelled", isCancelled,
+				"isShutdown", isShutdown,
+			)
+
+			backup.Status = backups_core.BackupStatusCanceled
+			backup.BackupDurationMs = time.Since(start).Milliseconds()
+			backup.BackupSizeMb = 0
+
+			if err := n.backupRepository.Save(backup); err != nil {
+				n.logger.Error("Failed to save cancelled backup", "error", err)
+			}
+
+			// Delete partial backup from storage
+			storage, storageErr := n.storageService.GetStorageByID(backup.StorageID)
+			if storageErr == nil {
+				if deleteErr := storage.DeleteFile(n.fieldEncryptor, backup.ID); deleteErr != nil {
+					n.logger.Error(
+						"Failed to delete partial backup file",
+						"backupId",
+						backup.ID,
+						"error",
+						deleteErr,
+					)
+				}
+			}
+
+			return
+		}
+
+		backup.FailMessage = &errMsg
+		backup.Status = backups_core.BackupStatusFailed
+		backup.BackupDurationMs = time.Since(start).Milliseconds()
+		backup.BackupSizeMb = 0
+
+		if updateErr := n.databaseService.SetBackupError(databaseID, errMsg); updateErr != nil {
+			n.logger.Error(
+				"Failed to update database last backup time",
+				"databaseId",
+				databaseID,
+				"error",
+				updateErr,
+			)
+		}
+
+		if err := n.backupRepository.Save(backup); err != nil {
+			n.logger.Error("Failed to save backup", "error", err)
+		}
+
+		n.SendBackupNotification(
+			backupConfig,
+			backup,
+			backups_config.NotificationBackupFailed,
+			&errMsg,
+		)
+
+		return
+	}
+
+	backup.Status = backups_core.BackupStatusCompleted
+	backup.BackupDurationMs = time.Since(start).Milliseconds()
+
+	// Update backup with encryption metadata if provided
+	if backupMetadata != nil {
+		backup.EncryptionSalt = backupMetadata.EncryptionSalt
+		backup.EncryptionIV = backupMetadata.EncryptionIV
+		backup.Encryption = backupMetadata.Encryption
+	}
+
+	if err := n.backupRepository.Save(backup); err != nil {
+		n.logger.Error("Failed to save backup", "error", err)
+		return
+	}
+
+	// Update database last backup time
+	now := time.Now().UTC()
+	if updateErr := n.databaseService.SetLastBackupTime(databaseID, now); updateErr != nil {
+		n.logger.Error(
+			"Failed to update database last backup time",
+			"databaseId",
+			databaseID,
+			"error",
+			updateErr,
+		)
+	}
+
+	if backup.Status != backups_core.BackupStatusCompleted && !isCallNotifier {
+		return
+	}
+
+	n.SendBackupNotification(
+		backupConfig,
+		backup,
+		backups_config.NotificationBackupSuccess,
+		nil,
+	)
+}
+
+func (n *BackuperNode) SendBackupNotification(
+	backupConfig *backups_config.BackupConfig,
+	backup *backups_core.Backup,
+	notificationType backups_config.BackupNotificationType,
+	errorMessage *string,
+) {
+	database, err := n.databaseService.GetDatabaseByID(backupConfig.DatabaseID)
+	if err != nil {
+		return
+	}
+
+	workspace, err := n.workspaceService.GetWorkspaceByID(*database.WorkspaceID)
+	if err != nil {
+		return
+	}
+
+	for _, notifier := range database.Notifiers {
+		if !slices.Contains(
+			backupConfig.SendNotificationsOn,
+			notificationType,
+		) {
+			continue
+		}
+
+		title := ""
+		switch notificationType {
+		case backups_config.NotificationBackupFailed:
+			title = fmt.Sprintf(
+				"❌ Backup failed for database \"%s\" (workspace \"%s\")",
+				database.Name,
+				workspace.Name,
+			)
+		case backups_config.NotificationBackupSuccess:
+			title = fmt.Sprintf(
+				"✅ Backup completed for database \"%s\" (workspace \"%s\")",
+				database.Name,
+				workspace.Name,
+			)
+		}
+
+		message := ""
+		if errorMessage != nil {
+			message = *errorMessage
+		} else {
+			// Format size conditionally
+			var sizeStr string
+			if backup.BackupSizeMb < 1024 {
+				sizeStr = fmt.Sprintf("%.2f MB", backup.BackupSizeMb)
+			} else {
+				sizeGB := backup.BackupSizeMb / 1024
+				sizeStr = fmt.Sprintf("%.2f GB", sizeGB)
+			}
+
+			// Format duration as "0m 0s 0ms"
+			totalMs := backup.BackupDurationMs
+			minutes := totalMs / (1000 * 60)
+			seconds := (totalMs % (1000 * 60)) / 1000
+			durationStr := fmt.Sprintf("%dm %ds", minutes, seconds)
+
+			message = fmt.Sprintf(
+				"Backup completed successfully in %s.\nCompressed backup size: %s",
+				durationStr,
+				sizeStr,
+			)
+		}
+
+		n.notificationSender.SendNotification(
+			&notifier,
+			title,
+			message,
+		)
+	}
+}
+
+func (n *BackuperNode) sendHeartbeat(backupNode *BackupNode) {
+	n.lastHeartbeat = time.Now().UTC()
+	if err := n.backupNodesRegistry.HearthbeatNodeInRegistry(time.Now().UTC(), *backupNode); err != nil {
+		n.logger.Error("Failed to send heartbeat", "error", err)
+	}
+}

backend/internal/features/backups/backups/backuping/backuper_test.go

@@ -0,0 +1,273 @@
+package backuping
+
+import (
+	"strings"
+	"testing"
+	"time"
+
+	backups_core "databasus-backend/internal/features/backups/backups/core"
+	backups_config "databasus-backend/internal/features/backups/config"
+	"databasus-backend/internal/features/databases"
+	"databasus-backend/internal/features/notifiers"
+	"databasus-backend/internal/features/storages"
+	users_enums "databasus-backend/internal/features/users/enums"
+	users_testing "databasus-backend/internal/features/users/testing"
+	workspaces_testing "databasus-backend/internal/features/workspaces/testing"
+	cache_utils "databasus-backend/internal/util/cache"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+)
+
+func Test_BackupExecuted_NotificationSent(t *testing.T) {
+	cache_utils.ClearAllCache()
+	user := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
+	router := CreateTestRouter()
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", user, router)
+	storage := storages.CreateTestStorage(workspace.ID)
+	notifier := notifiers.CreateTestNotifier(workspace.ID)
+	database := databases.CreateTestDatabase(workspace.ID, storage, notifier)
+	backups_config.EnableBackupsForTestDatabase(database.ID, storage)
+
+	defer func() {
+		// cleanup backups first
+		backups, _ := backupRepository.FindByDatabaseID(database.ID)
+		for _, backup := range backups {
+			backupRepository.DeleteByID(backup.ID)
+		}
+
+		databases.RemoveTestDatabase(database)
+		time.Sleep(50 * time.Millisecond) // Wait for cascading deletes
+		notifiers.RemoveTestNotifier(notifier)
+		storages.RemoveTestStorage(storage.ID)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+	}()
+
+	t.Run("BackupFailed_FailNotificationSent", func(t *testing.T) {
+		mockNotificationSender := &MockNotificationSender{}
+		backuperNode := CreateTestBackuperNode()
+		backuperNode.notificationSender = mockNotificationSender
+		backuperNode.createBackupUseCase = &CreateFailedBackupUsecase{}
+
+		// Create a backup record directly that will be looked up by MakeBackup
+		backup := &backups_core.Backup{
+			DatabaseID: database.ID,
+			StorageID:  storage.ID,
+			Status:     backups_core.BackupStatusInProgress,
+			CreatedAt:  time.Now().UTC(),
+		}
+		err := backupRepository.Save(backup)
+		assert.NoError(t, err)
+
+		// Set up expectations
+		mockNotificationSender.On("SendNotification",
+			mock.Anything,
+			mock.MatchedBy(func(title string) bool {
+				return strings.Contains(title, "❌ Backup failed")
+			}),
+			mock.MatchedBy(func(message string) bool {
+				return strings.Contains(message, "backup failed")
+			}),
+		).Once()
+
+		backuperNode.MakeBackup(backup.ID, true)
+
+		// Verify all expectations were met
+		mockNotificationSender.AssertExpectations(t)
+	})
+
+	t.Run("BackupSuccess_SuccessNotificationSent", func(t *testing.T) {
+		mockNotificationSender := &MockNotificationSender{}
+		backuperNode := CreateTestBackuperNode()
+		backuperNode.notificationSender = mockNotificationSender
+		backuperNode.createBackupUseCase = &CreateSuccessBackupUsecase{}
+
+		// Create a backup record directly that will be looked up by MakeBackup
+		backup := &backups_core.Backup{
+			DatabaseID: database.ID,
+			StorageID:  storage.ID,
+			Status:     backups_core.BackupStatusInProgress,
+			CreatedAt:  time.Now().UTC(),
+		}
+		err := backupRepository.Save(backup)
+		assert.NoError(t, err)
+
+		// Set up expectations
+		mockNotificationSender.On("SendNotification",
+			mock.Anything,
+			mock.MatchedBy(func(title string) bool {
+				return strings.Contains(title, "✅ Backup completed")
+			}),
+			mock.MatchedBy(func(message string) bool {
+				return strings.Contains(message, "Backup completed successfully")
+			}),
+		).Once()
+
+		backuperNode.MakeBackup(backup.ID, true)
+
+		// Verify all expectations were met
+		mockNotificationSender.AssertExpectations(t)
+	})
+
+	t.Run("BackupSuccess_VerifyNotificationContent", func(t *testing.T) {
+		mockNotificationSender := &MockNotificationSender{}
+		backuperNode := CreateTestBackuperNode()
+		backuperNode.notificationSender = mockNotificationSender
+		backuperNode.createBackupUseCase = &CreateSuccessBackupUsecase{}
+
+		// Create a backup record directly that will be looked up by MakeBackup
+		backup := &backups_core.Backup{
+			DatabaseID: database.ID,
+			StorageID:  storage.ID,
+			Status:     backups_core.BackupStatusInProgress,
+			CreatedAt:  time.Now().UTC(),
+		}
+		err := backupRepository.Save(backup)
+		assert.NoError(t, err)
+
+		// capture arguments
+		var capturedNotifier *notifiers.Notifier
+		var capturedTitle string
+		var capturedMessage string
+
+		mockNotificationSender.On("SendNotification",
+			mock.Anything,
+			mock.AnythingOfType("string"),
+			mock.AnythingOfType("string"),
+		).Run(func(args mock.Arguments) {
+			capturedNotifier = args.Get(0).(*notifiers.Notifier)
+			capturedTitle = args.Get(1).(string)
+			capturedMessage = args.Get(2).(string)
+		}).Once()
+
+		backuperNode.MakeBackup(backup.ID, true)
+
+		// Verify expectations were met
+		mockNotificationSender.AssertExpectations(t)
+
+		// Additional detailed assertions
+		assert.Contains(t, capturedTitle, "✅ Backup completed")
+		assert.Contains(t, capturedTitle, database.Name)
+		assert.Contains(t, capturedMessage, "Backup completed successfully")
+		assert.Contains(t, capturedMessage, "10.00 MB")
+		assert.Equal(t, notifier.ID, capturedNotifier.ID)
+	})
+}
+
+func Test_BackupSizeLimits(t *testing.T) {
+	cache_utils.ClearAllCache()
+	user := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
+	router := CreateTestRouter()
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", user, router)
+	storage := storages.CreateTestStorage(workspace.ID)
+	notifier := notifiers.CreateTestNotifier(workspace.ID)
+	database := databases.CreateTestDatabase(workspace.ID, storage, notifier)
+
+	defer func() {
+		// cleanup backups first
+		backups, _ := backupRepository.FindByDatabaseID(database.ID)
+		for _, backup := range backups {
+			backupRepository.DeleteByID(backup.ID)
+		}
+
+		databases.RemoveTestDatabase(database)
+		time.Sleep(50 * time.Millisecond) // Wait for cascading deletes
+		notifiers.RemoveTestNotifier(notifier)
+		storages.RemoveTestStorage(storage.ID)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+	}()
+
+	t.Run("UnlimitedSize_MaxBackupSizeMBIsZero_BackupCompletes", func(t *testing.T) {
+		// Enable backups with unlimited size (0)
+		backupConfig := backups_config.EnableBackupsForTestDatabase(database.ID, storage)
+		backupConfig.MaxBackupSizeMB = 0 // unlimited
+		backupConfig, err := backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig)
+		assert.NoError(t, err)
+
+		backuperNode := CreateTestBackuperNode()
+		backuperNode.createBackupUseCase = &CreateLargeBackupUsecase{}
+
+		// Create a backup record
+		backup := &backups_core.Backup{
+			DatabaseID: database.ID,
+			StorageID:  storage.ID,
+			Status:     backups_core.BackupStatusInProgress,
+			CreatedAt:  time.Now().UTC(),
+		}
+		err = backupRepository.Save(backup)
+		assert.NoError(t, err)
+
+		backuperNode.MakeBackup(backup.ID, false)
+
+		// Verify backup completed successfully even with large size
+		updatedBackup, err := backupRepository.FindByID(backup.ID)
+		assert.NoError(t, err)
+		assert.Equal(t, backups_core.BackupStatusCompleted, updatedBackup.Status)
+		assert.Equal(t, float64(10000), updatedBackup.BackupSizeMb)
+		assert.Nil(t, updatedBackup.FailMessage)
+	})
+
+	t.Run("SizeExceeded_BackupFailedWithIsSkipRetry", func(t *testing.T) {
+		// Enable backups with 5 MB limit
+		backupConfig := backups_config.EnableBackupsForTestDatabase(database.ID, storage)
+		backupConfig.MaxBackupSizeMB = 5
+		backupConfig, err := backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig)
+		assert.NoError(t, err)
+
+		backuperNode := CreateTestBackuperNode()
+		backuperNode.createBackupUseCase = &CreateProgressiveBackupUsecase{}
+
+		// Create a backup record
+		backup := &backups_core.Backup{
+			DatabaseID: database.ID,
+			StorageID:  storage.ID,
+			Status:     backups_core.BackupStatusInProgress,
+			CreatedAt:  time.Now().UTC(),
+		}
+		err = backupRepository.Save(backup)
+		assert.NoError(t, err)
+
+		backuperNode.MakeBackup(backup.ID, false)
+
+		// Verify backup was marked as failed with IsSkipRetry=true
+		updatedBackup, err := backupRepository.FindByID(backup.ID)
+		assert.NoError(t, err)
+		assert.Equal(t, backups_core.BackupStatusFailed, updatedBackup.Status)
+		assert.True(t, updatedBackup.IsSkipRetry)
+		assert.NotNil(t, updatedBackup.FailMessage)
+		assert.Contains(t, *updatedBackup.FailMessage, "exceeded maximum allowed size")
+		assert.Contains(t, *updatedBackup.FailMessage, "10.00 MB")
+		assert.Contains(t, *updatedBackup.FailMessage, "5 MB")
+		assert.Greater(t, updatedBackup.BackupSizeMb, float64(5))
+	})
+
+	t.Run("SizeWithinLimit_BackupCompletes", func(t *testing.T) {
+		// Enable backups with 100 MB limit
+		backupConfig := backups_config.EnableBackupsForTestDatabase(database.ID, storage)
+		backupConfig.MaxBackupSizeMB = 100
+		backupConfig, err := backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig)
+		assert.NoError(t, err)
+
+		backuperNode := CreateTestBackuperNode()
+		backuperNode.createBackupUseCase = &CreateMediumBackupUsecase{}
+
+		// Create a backup record
+		backup := &backups_core.Backup{
+			DatabaseID: database.ID,
+			StorageID:  storage.ID,
+			Status:     backups_core.BackupStatusInProgress,
+			CreatedAt:  time.Now().UTC(),
+		}
+		err = backupRepository.Save(backup)
+		assert.NoError(t, err)
+
+		backuperNode.MakeBackup(backup.ID, false)
+
+		// Verify backup completed successfully
+		updatedBackup, err := backupRepository.FindByID(backup.ID)
+		assert.NoError(t, err)
+		assert.Equal(t, backups_core.BackupStatusCompleted, updatedBackup.Status)
+		assert.Equal(t, float64(50), updatedBackup.BackupSizeMb)
+		assert.Nil(t, updatedBackup.FailMessage)
+	})
+}

backend/internal/features/backups/backups/backuping/cleaner.go

@@ -0,0 +1,242 @@
+package backuping
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	"github.com/google/uuid"
+
+	backups_core "databasus-backend/internal/features/backups/backups/core"
+	backups_config "databasus-backend/internal/features/backups/config"
+	"databasus-backend/internal/features/storages"
+	util_encryption "databasus-backend/internal/util/encryption"
+	"databasus-backend/internal/util/period"
+)
+
+const (
+	cleanerTickerInterval = 1 * time.Minute
+)
+
+type BackupCleaner struct {
+	backupRepository      *backups_core.BackupRepository
+	storageService        *storages.StorageService
+	backupConfigService   *backups_config.BackupConfigService
+	fieldEncryptor        util_encryption.FieldEncryptor
+	logger                *slog.Logger
+	backupRemoveListeners []backups_core.BackupRemoveListener
+
+	runOnce sync.Once
+	hasRun  atomic.Bool
+}
+
+func (c *BackupCleaner) Run(ctx context.Context) {
+	wasAlreadyRun := c.hasRun.Load()
+
+	c.runOnce.Do(func() {
+		c.hasRun.Store(true)
+
+		if ctx.Err() != nil {
+			return
+		}
+
+		ticker := time.NewTicker(cleanerTickerInterval)
+		defer ticker.Stop()
+
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case <-ticker.C:
+				if err := c.cleanOldBackups(); err != nil {
+					c.logger.Error("Failed to clean old backups", "error", err)
+				}
+
+				if err := c.cleanExceededBackups(); err != nil {
+					c.logger.Error("Failed to clean exceeded backups", "error", err)
+				}
+			}
+		}
+	})
+
+	if wasAlreadyRun {
+		panic(fmt.Sprintf("%T.Run() called multiple times", c))
+	}
+}
+
+func (c *BackupCleaner) DeleteBackup(backup *backups_core.Backup) error {
+	for _, listener := range c.backupRemoveListeners {
+		if err := listener.OnBeforeBackupRemove(backup); err != nil {
+			return err
+		}
+	}
+
+	storage, err := c.storageService.GetStorageByID(backup.StorageID)
+	if err != nil {
+		return err
+	}
+
+	err = storage.DeleteFile(c.fieldEncryptor, backup.ID)
+	if err != nil {
+		// we do not return error here, because sometimes clean up performed
+		// before unavailable storage removal or change - therefore we should
+		// proceed even in case of error. It's possible that some S3 or
+		// storage is not available yet, it should not block us
+		c.logger.Error("Failed to delete backup file", "error", err)
+	}
+
+	return c.backupRepository.DeleteByID(backup.ID)
+}
+
+func (c *BackupCleaner) AddBackupRemoveListener(listener backups_core.BackupRemoveListener) {
+	c.backupRemoveListeners = append(c.backupRemoveListeners, listener)
+}
+
+func (c *BackupCleaner) cleanOldBackups() error {
+	enabledBackupConfigs, err := c.backupConfigService.GetBackupConfigsWithEnabledBackups()
+	if err != nil {
+		return err
+	}
+
+	for _, backupConfig := range enabledBackupConfigs {
+		backupStorePeriod := backupConfig.StorePeriod
+
+		if backupStorePeriod == period.PeriodForever {
+			continue
+		}
+
+		storeDuration := backupStorePeriod.ToDuration()
+		dateBeforeBackupsShouldBeDeleted := time.Now().UTC().Add(-storeDuration)
+
+		oldBackups, err := c.backupRepository.FindBackupsBeforeDate(
+			backupConfig.DatabaseID,
+			dateBeforeBackupsShouldBeDeleted,
+		)
+		if err != nil {
+			c.logger.Error(
+				"Failed to find old backups for database",
+				"databaseId",
+				backupConfig.DatabaseID,
+				"error",
+				err,
+			)
+			continue
+		}
+
+		for _, backup := range oldBackups {
+			if err := c.DeleteBackup(backup); err != nil {
+				c.logger.Error("Failed to delete old backup", "backupId", backup.ID, "error", err)
+				continue
+			}
+
+			c.logger.Info(
+				"Deleted old backup",
+				"backupId",
+				backup.ID,
+				"databaseId",
+				backupConfig.DatabaseID,
+			)
+		}
+	}
+
+	return nil
+}
+
+func (c *BackupCleaner) cleanExceededBackups() error {
+	enabledBackupConfigs, err := c.backupConfigService.GetBackupConfigsWithEnabledBackups()
+	if err != nil {
+		return err
+	}
+
+	for _, backupConfig := range enabledBackupConfigs {
+		if backupConfig.MaxBackupsTotalSizeMB <= 0 {
+			continue
+		}
+
+		if err := c.cleanExceededBackupsForDatabase(
+			backupConfig.DatabaseID,
+			backupConfig.MaxBackupsTotalSizeMB,
+		); err != nil {
+			c.logger.Error(
+				"Failed to clean exceeded backups for database",
+				"databaseId",
+				backupConfig.DatabaseID,
+				"error",
+				err,
+			)
+			continue
+		}
+	}
+
+	return nil
+}
+
+func (c *BackupCleaner) cleanExceededBackupsForDatabase(
+	databaseID uuid.UUID,
+	limitperDbMB int64,
+) error {
+	for {
+		backupsTotalSizeMB, err := c.backupRepository.GetTotalSizeByDatabase(databaseID)
+		if err != nil {
+			return err
+		}
+
+		if backupsTotalSizeMB <= float64(limitperDbMB) {
+			break
+		}
+
+		oldestBackups, err := c.backupRepository.FindOldestByDatabaseExcludingInProgress(
+			databaseID,
+			1,
+		)
+		if err != nil {
+			return err
+		}
+
+		if len(oldestBackups) == 0 {
+			c.logger.Warn(
+				"No backups to delete but still over limit",
+				"databaseId",
+				databaseID,
+				"totalSizeMB",
+				backupsTotalSizeMB,
+				"limitMB",
+				limitperDbMB,
+			)
+			break
+		}
+
+		backup := oldestBackups[0]
+		if err := c.DeleteBackup(backup); err != nil {
+			c.logger.Error(
+				"Failed to delete exceeded backup",
+				"backupId",
+				backup.ID,
+				"databaseId",
+				databaseID,
+				"error",
+				err,
+			)
+			return err
+		}
+
+		c.logger.Info(
+			"Deleted exceeded backup",
+			"backupId",
+			backup.ID,
+			"databaseId",
+			databaseID,
+			"backupSizeMB",
+			backup.BackupSizeMb,
+			"totalSizeMB",
+			backupsTotalSizeMB,
+			"limitMB",
+			limitperDbMB,
+		)
+	}
+
+	return nil
+}

backend/internal/features/backups/backups/backuping/cleaner_test.go

@@ -0,0 +1,491 @@
+package backuping
+
+import (
+	"testing"
+	"time"
+
+	backups_core "databasus-backend/internal/features/backups/backups/core"
+	backups_config "databasus-backend/internal/features/backups/config"
+	"databasus-backend/internal/features/databases"
+	"databasus-backend/internal/features/intervals"
+	"databasus-backend/internal/features/notifiers"
+	"databasus-backend/internal/features/storages"
+	users_enums "databasus-backend/internal/features/users/enums"
+	users_testing "databasus-backend/internal/features/users/testing"
+	workspaces_testing "databasus-backend/internal/features/workspaces/testing"
+	"databasus-backend/internal/storage"
+	"databasus-backend/internal/util/period"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_CleanOldBackups_DeletesBackupsOlderThanStorePeriod(t *testing.T) {
+	router := CreateTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+	storage := storages.CreateTestStorage(workspace.ID)
+	notifier := notifiers.CreateTestNotifier(workspace.ID)
+	database := databases.CreateTestDatabase(workspace.ID, storage, notifier)
+
+	// Create backup interval
+	interval := createTestInterval()
+
+	backupConfig := &backups_config.BackupConfig{
+		DatabaseID:       database.ID,
+		IsBackupsEnabled: true,
+		StorePeriod:      period.PeriodWeek,
+		StorageID:        &storage.ID,
+		BackupIntervalID: interval.ID,
+		BackupInterval:   interval,
+	}
+	_, err := backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig)
+	assert.NoError(t, err)
+
+	// Create backups with different ages
+	now := time.Now().UTC()
+	oldBackup1 := &backups_core.Backup{
+		ID:           uuid.New(),
+		DatabaseID:   database.ID,
+		StorageID:    storage.ID,
+		Status:       backups_core.BackupStatusCompleted,
+		BackupSizeMb: 10,
+		CreatedAt:    now.Add(-10 * 24 * time.Hour), // 10 days old
+	}
+	oldBackup2 := &backups_core.Backup{
+		ID:           uuid.New(),
+		DatabaseID:   database.ID,
+		StorageID:    storage.ID,
+		Status:       backups_core.BackupStatusCompleted,
+		BackupSizeMb: 10,
+		CreatedAt:    now.Add(-8 * 24 * time.Hour), // 8 days old
+	}
+	recentBackup := &backups_core.Backup{
+		ID:           uuid.New(),
+		DatabaseID:   database.ID,
+		StorageID:    storage.ID,
+		Status:       backups_core.BackupStatusCompleted,
+		BackupSizeMb: 10,
+		CreatedAt:    now.Add(-3 * 24 * time.Hour), // 3 days old
+	}
+
+	err = backupRepository.Save(oldBackup1)
+	assert.NoError(t, err)
+	err = backupRepository.Save(oldBackup2)
+	assert.NoError(t, err)
+	err = backupRepository.Save(recentBackup)
+	assert.NoError(t, err)
+
+	// Run cleanup
+	cleaner := GetBackupCleaner()
+	err = cleaner.cleanOldBackups()
+	assert.NoError(t, err)
+
+	// Verify old backups deleted, recent backup remains
+	remainingBackups, err := backupRepository.FindByDatabaseID(database.ID)
+	assert.NoError(t, err)
+	assert.Equal(t, 1, len(remainingBackups))
+	assert.Equal(t, recentBackup.ID, remainingBackups[0].ID)
+}
+
+func Test_CleanOldBackups_SkipsDatabaseWithForeverStorePeriod(t *testing.T) {
+	router := CreateTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+	storage := storages.CreateTestStorage(workspace.ID)
+	notifier := notifiers.CreateTestNotifier(workspace.ID)
+	database := databases.CreateTestDatabase(workspace.ID, storage, notifier)
+
+	// Create backup interval
+	interval := createTestInterval()
+
+	backupConfig := &backups_config.BackupConfig{
+		DatabaseID:       database.ID,
+		IsBackupsEnabled: true,
+		StorePeriod:      period.PeriodForever,
+		StorageID:        &storage.ID,
+		BackupIntervalID: interval.ID,
+		BackupInterval:   interval,
+	}
+	_, err := backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig)
+	assert.NoError(t, err)
+
+	// Create very old backup
+	oldBackup := &backups_core.Backup{
+		ID:           uuid.New(),
+		DatabaseID:   database.ID,
+		StorageID:    storage.ID,
+		Status:       backups_core.BackupStatusCompleted,
+		BackupSizeMb: 10,
+		CreatedAt:    time.Now().UTC().Add(-365 * 24 * time.Hour), // 1 year old
+	}
+	err = backupRepository.Save(oldBackup)
+	assert.NoError(t, err)
+
+	// Run cleanup
+	cleaner := GetBackupCleaner()
+	err = cleaner.cleanOldBackups()
+	assert.NoError(t, err)
+
+	// Verify backup still exists
+	remainingBackups, err := backupRepository.FindByDatabaseID(database.ID)
+	assert.NoError(t, err)
+	assert.Equal(t, 1, len(remainingBackups))
+	assert.Equal(t, oldBackup.ID, remainingBackups[0].ID)
+}
+
+func Test_CleanExceededBackups_WhenUnderLimit_NoBackupsDeleted(t *testing.T) {
+	router := CreateTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+	storage := storages.CreateTestStorage(workspace.ID)
+	notifier := notifiers.CreateTestNotifier(workspace.ID)
+	database := databases.CreateTestDatabase(workspace.ID, storage, notifier)
+
+	// Create backup interval
+	interval := createTestInterval()
+
+	backupConfig := &backups_config.BackupConfig{
+		DatabaseID:            database.ID,
+		IsBackupsEnabled:      true,
+		StorePeriod:           period.PeriodForever,
+		StorageID:             &storage.ID,
+		MaxBackupsTotalSizeMB: 100, // 100 MB limit
+		BackupIntervalID:      interval.ID,
+		BackupInterval:        interval,
+	}
+	_, err := backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig)
+	assert.NoError(t, err)
+
+	// Create 3 backups totaling 50MB (under limit)
+	for i := 0; i < 3; i++ {
+		backup := &backups_core.Backup{
+			ID:           uuid.New(),
+			DatabaseID:   database.ID,
+			StorageID:    storage.ID,
+			Status:       backups_core.BackupStatusCompleted,
+			BackupSizeMb: 16.67,
+			CreatedAt:    time.Now().UTC().Add(-time.Duration(i) * time.Hour),
+		}
+		err = backupRepository.Save(backup)
+		assert.NoError(t, err)
+	}
+
+	// Run cleanup
+	cleaner := GetBackupCleaner()
+	err = cleaner.cleanExceededBackups()
+	assert.NoError(t, err)
+
+	// Verify all backups remain
+	remainingBackups, err := backupRepository.FindByDatabaseID(database.ID)
+	assert.NoError(t, err)
+	assert.Equal(t, 3, len(remainingBackups))
+}
+
+func Test_CleanExceededBackups_WhenOverLimit_DeletesOldestBackups(t *testing.T) {
+	router := CreateTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+	storage := storages.CreateTestStorage(workspace.ID)
+	notifier := notifiers.CreateTestNotifier(workspace.ID)
+	database := databases.CreateTestDatabase(workspace.ID, storage, notifier)
+
+	// Create backup interval
+	interval := createTestInterval()
+
+	backupConfig := &backups_config.BackupConfig{
+		DatabaseID:            database.ID,
+		IsBackupsEnabled:      true,
+		StorePeriod:           period.PeriodForever,
+		StorageID:             &storage.ID,
+		MaxBackupsTotalSizeMB: 30, // 30 MB limit
+		BackupIntervalID:      interval.ID,
+		BackupInterval:        interval,
+	}
+	_, err := backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig)
+	assert.NoError(t, err)
+
+	// Create 5 backups of 10MB each (total 50MB, over 30MB limit)
+	now := time.Now().UTC()
+	var backupIDs []uuid.UUID
+	for i := 0; i < 5; i++ {
+		backup := &backups_core.Backup{
+			ID:           uuid.New(),
+			DatabaseID:   database.ID,
+			StorageID:    storage.ID,
+			Status:       backups_core.BackupStatusCompleted,
+			BackupSizeMb: 10,
+			CreatedAt:    now.Add(-time.Duration(4-i) * time.Hour), // Oldest first
+		}
+		err = backupRepository.Save(backup)
+		assert.NoError(t, err)
+		backupIDs = append(backupIDs, backup.ID)
+	}
+
+	// Run cleanup
+	cleaner := GetBackupCleaner()
+	err = cleaner.cleanExceededBackups()
+	assert.NoError(t, err)
+
+	// Verify 2 oldest backups deleted, 3 newest remain
+	remainingBackups, err := backupRepository.FindByDatabaseID(database.ID)
+	assert.NoError(t, err)
+	assert.Equal(t, 3, len(remainingBackups))
+
+	// Check that the newest 3 backups remain
+	remainingIDs := make(map[uuid.UUID]bool)
+	for _, backup := range remainingBackups {
+		remainingIDs[backup.ID] = true
+	}
+	assert.False(t, remainingIDs[backupIDs[0]]) // Oldest deleted
+	assert.False(t, remainingIDs[backupIDs[1]]) // 2nd oldest deleted
+	assert.True(t, remainingIDs[backupIDs[2]])  // 3rd remains
+	assert.True(t, remainingIDs[backupIDs[3]])  // 4th remains
+	assert.True(t, remainingIDs[backupIDs[4]])  // Newest remains
+}
+
+func Test_CleanExceededBackups_SkipsInProgressBackups(t *testing.T) {
+	router := CreateTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+	storage := storages.CreateTestStorage(workspace.ID)
+	notifier := notifiers.CreateTestNotifier(workspace.ID)
+	database := databases.CreateTestDatabase(workspace.ID, storage, notifier)
+
+	// Create backup interval
+	interval := createTestInterval()
+
+	backupConfig := &backups_config.BackupConfig{
+		DatabaseID:            database.ID,
+		IsBackupsEnabled:      true,
+		StorePeriod:           period.PeriodForever,
+		StorageID:             &storage.ID,
+		MaxBackupsTotalSizeMB: 50, // 50 MB limit
+		BackupIntervalID:      interval.ID,
+		BackupInterval:        interval,
+	}
+	_, err := backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig)
+	assert.NoError(t, err)
+
+	now := time.Now().UTC()
+
+	// Create 3 completed backups of 30MB each
+	completedBackups := make([]*backups_core.Backup, 3)
+	for i := 0; i < 3; i++ {
+		backup := &backups_core.Backup{
+			ID:           uuid.New(),
+			DatabaseID:   database.ID,
+			StorageID:    storage.ID,
+			Status:       backups_core.BackupStatusCompleted,
+			BackupSizeMb: 30,
+			CreatedAt:    now.Add(-time.Duration(3-i) * time.Hour),
+		}
+		err = backupRepository.Save(backup)
+		assert.NoError(t, err)
+		completedBackups[i] = backup
+	}
+
+	// Create 1 in-progress backup (should be excluded from size calculation and deletion)
+	inProgressBackup := &backups_core.Backup{
+		ID:           uuid.New(),
+		DatabaseID:   database.ID,
+		StorageID:    storage.ID,
+		Status:       backups_core.BackupStatusInProgress,
+		BackupSizeMb: 10,
+		CreatedAt:    now,
+	}
+	err = backupRepository.Save(inProgressBackup)
+	assert.NoError(t, err)
+
+	// Run cleanup
+	cleaner := GetBackupCleaner()
+	err = cleaner.cleanExceededBackups()
+	assert.NoError(t, err)
+
+	// Verify: only completed backups deleted, in-progress remains
+	remainingBackups, err := backupRepository.FindByDatabaseID(database.ID)
+	assert.NoError(t, err)
+
+	// Should have in-progress + 1 completed (total 40MB completed + 10MB in-progress)
+	assert.GreaterOrEqual(t, len(remainingBackups), 2)
+
+	// Verify in-progress backup still exists
+	var inProgressFound bool
+	for _, backup := range remainingBackups {
+		if backup.ID == inProgressBackup.ID {
+			inProgressFound = true
+			assert.Equal(t, backups_core.BackupStatusInProgress, backup.Status)
+		}
+	}
+	assert.True(t, inProgressFound, "In-progress backup should not be deleted")
+}
+
+func Test_CleanExceededBackups_WithZeroLimit_SkipsDatabase(t *testing.T) {
+	router := CreateTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+	storage := storages.CreateTestStorage(workspace.ID)
+	notifier := notifiers.CreateTestNotifier(workspace.ID)
+	database := databases.CreateTestDatabase(workspace.ID, storage, notifier)
+
+	// Create backup interval
+	interval := createTestInterval()
+
+	backupConfig := &backups_config.BackupConfig{
+		DatabaseID:            database.ID,
+		IsBackupsEnabled:      true,
+		StorePeriod:           period.PeriodForever,
+		StorageID:             &storage.ID,
+		MaxBackupsTotalSizeMB: 0, // No size limit
+		BackupIntervalID:      interval.ID,
+		BackupInterval:        interval,
+	}
+	_, err := backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig)
+	assert.NoError(t, err)
+
+	// Create large backups
+	for i := 0; i < 10; i++ {
+		backup := &backups_core.Backup{
+			ID:           uuid.New(),
+			DatabaseID:   database.ID,
+			StorageID:    storage.ID,
+			Status:       backups_core.BackupStatusCompleted,
+			BackupSizeMb: 100,
+			CreatedAt:    time.Now().UTC().Add(-time.Duration(i) * time.Hour),
+		}
+		err = backupRepository.Save(backup)
+		assert.NoError(t, err)
+	}
+
+	// Run cleanup
+	cleaner := GetBackupCleaner()
+	err = cleaner.cleanExceededBackups()
+	assert.NoError(t, err)
+
+	// Verify all backups remain
+	remainingBackups, err := backupRepository.FindByDatabaseID(database.ID)
+	assert.NoError(t, err)
+	assert.Equal(t, 10, len(remainingBackups))
+}
+
+func Test_GetTotalSizeByDatabase_CalculatesCorrectly(t *testing.T) {
+	router := CreateTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+	storage := storages.CreateTestStorage(workspace.ID)
+	notifier := notifiers.CreateTestNotifier(workspace.ID)
+	database := databases.CreateTestDatabase(workspace.ID, storage, notifier)
+
+	// Create completed backups
+	completedBackup1 := &backups_core.Backup{
+		ID:           uuid.New(),
+		DatabaseID:   database.ID,
+		StorageID:    storage.ID,
+		Status:       backups_core.BackupStatusCompleted,
+		BackupSizeMb: 10.5,
+		CreatedAt:    time.Now().UTC(),
+	}
+	completedBackup2 := &backups_core.Backup{
+		ID:           uuid.New(),
+		DatabaseID:   database.ID,
+		StorageID:    storage.ID,
+		Status:       backups_core.BackupStatusCompleted,
+		BackupSizeMb: 20.3,
+		CreatedAt:    time.Now().UTC(),
+	}
+	// Create failed backup (should be included)
+	failedBackup := &backups_core.Backup{
+		ID:           uuid.New(),
+		DatabaseID:   database.ID,
+		StorageID:    storage.ID,
+		Status:       backups_core.BackupStatusFailed,
+		BackupSizeMb: 5.2,
+		CreatedAt:    time.Now().UTC(),
+	}
+	// Create in-progress backup (should be excluded)
+	inProgressBackup := &backups_core.Backup{
+		ID:           uuid.New(),
+		DatabaseID:   database.ID,
+		StorageID:    storage.ID,
+		Status:       backups_core.BackupStatusInProgress,
+		BackupSizeMb: 100,
+		CreatedAt:    time.Now().UTC(),
+	}
+
+	err := backupRepository.Save(completedBackup1)
+	assert.NoError(t, err)
+	err = backupRepository.Save(completedBackup2)
+	assert.NoError(t, err)
+	err = backupRepository.Save(failedBackup)
+	assert.NoError(t, err)
+	err = backupRepository.Save(inProgressBackup)
+	assert.NoError(t, err)
+
+	// Calculate total size
+	totalSize, err := backupRepository.GetTotalSizeByDatabase(database.ID)
+	assert.NoError(t, err)
+
+	// Should be 10.5 + 20.3 + 5.2 = 36.0 (excluding in-progress 100)
+	assert.InDelta(t, 36.0, totalSize, 0.1)
+}
+
+// Mock listener for testing
+type mockBackupRemoveListener struct {
+	onBeforeBackupRemove func(*backups_core.Backup) error
+}
+
+func (m *mockBackupRemoveListener) OnBeforeBackupRemove(backup *backups_core.Backup) error {
+	if m.onBeforeBackupRemove != nil {
+		return m.onBeforeBackupRemove(backup)
+	}
+
+	return nil
+}
+
+// Test_DeleteBackup_WhenStorageDeleteFails_BackupStillRemovedFromDatabase verifies resilience
+// when storage becomes unavailable. Even if storage.DeleteFile fails (e.g., storage is offline,
+// credentials changed, or storage was deleted), the backup record should still be removed from
+// the database. This prevents orphaned backup records when storage is no longer accessible.
+func Test_DeleteBackup_WhenStorageDeleteFails_BackupStillRemovedFromDatabase(t *testing.T) {
+	router := CreateTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+	testStorage := storages.CreateTestStorage(workspace.ID)
+	notifier := notifiers.CreateTestNotifier(workspace.ID)
+	database := databases.CreateTestDatabase(workspace.ID, testStorage, notifier)
+
+	backup := &backups_core.Backup{
+		ID:           uuid.New(),
+		DatabaseID:   database.ID,
+		StorageID:    testStorage.ID,
+		Status:       backups_core.BackupStatusCompleted,
+		BackupSizeMb: 10,
+		CreatedAt:    time.Now().UTC(),
+	}
+	err := backupRepository.Save(backup)
+	assert.NoError(t, err)
+
+	cleaner := GetBackupCleaner()
+
+	err = cleaner.DeleteBackup(backup)
+	assert.NoError(t, err, "DeleteBackup should succeed even when storage file doesn't exist")
+
+	deletedBackup, err := backupRepository.FindByID(backup.ID)
+	assert.Error(t, err, "Backup should not exist in database")
+	assert.Nil(t, deletedBackup)
+}
+
+func createTestInterval() *intervals.Interval {
+	timeOfDay := "04:00"
+	interval := &intervals.Interval{
+		Interval:  intervals.IntervalDaily,
+		TimeOfDay: &timeOfDay,
+	}
+
+	err := storage.GetDb().Create(interval).Error
+	if err != nil {
+		panic(err)
+	}
+
+	return interval
+}

backend/internal/features/backups/backups/backuping/di.go

@@ -0,0 +1,97 @@
+package backuping
+
+import (
+	"sync"
+	"sync/atomic"
+	"time"
+
+	"github.com/google/uuid"
+
+	backups_core "databasus-backend/internal/features/backups/backups/core"
+	"databasus-backend/internal/features/backups/backups/usecases"
+	backups_config "databasus-backend/internal/features/backups/config"
+	"databasus-backend/internal/features/databases"
+	"databasus-backend/internal/features/notifiers"
+	"databasus-backend/internal/features/storages"
+	tasks_cancellation "databasus-backend/internal/features/tasks/cancellation"
+	workspaces_services "databasus-backend/internal/features/workspaces/services"
+	cache_utils "databasus-backend/internal/util/cache"
+	"databasus-backend/internal/util/encryption"
+	"databasus-backend/internal/util/logger"
+)
+
+var backupRepository = &backups_core.BackupRepository{}
+
+var taskCancelManager = tasks_cancellation.GetTaskCancelManager()
+
+var backupCleaner = &BackupCleaner{
+	backupRepository:      backupRepository,
+	storageService:        storages.GetStorageService(),
+	backupConfigService:   backups_config.GetBackupConfigService(),
+	fieldEncryptor:        encryption.GetFieldEncryptor(),
+	logger:                logger.GetLogger(),
+	backupRemoveListeners: []backups_core.BackupRemoveListener{},
+	runOnce:               sync.Once{},
+	hasRun:                atomic.Bool{},
+}
+
+var backupNodesRegistry = &BackupNodesRegistry{
+	client:            cache_utils.GetValkeyClient(),
+	logger:            logger.GetLogger(),
+	timeout:           cache_utils.DefaultCacheTimeout,
+	pubsubBackups:     cache_utils.NewPubSubManager(),
+	pubsubCompletions: cache_utils.NewPubSubManager(),
+	runOnce:           sync.Once{},
+	hasRun:            atomic.Bool{},
+}
+
+func getNodeID() uuid.UUID {
+	return uuid.New()
+}
+
+var backuperNode = &BackuperNode{
+	databaseService:     databases.GetDatabaseService(),
+	fieldEncryptor:      encryption.GetFieldEncryptor(),
+	workspaceService:    workspaces_services.GetWorkspaceService(),
+	backupRepository:    backupRepository,
+	backupConfigService: backups_config.GetBackupConfigService(),
+	storageService:      storages.GetStorageService(),
+	notificationSender:  notifiers.GetNotifierService(),
+	backupCancelManager: taskCancelManager,
+	backupNodesRegistry: backupNodesRegistry,
+	logger:              logger.GetLogger(),
+	createBackupUseCase: usecases.GetCreateBackupUsecase(),
+	nodeID:              getNodeID(),
+	lastHeartbeat:       time.Time{},
+	runOnce:             sync.Once{},
+	hasRun:              atomic.Bool{},
+}
+
+var backupsScheduler = &BackupsScheduler{
+	backupRepository:      backupRepository,
+	backupConfigService:   backups_config.GetBackupConfigService(),
+	taskCancelManager:     taskCancelManager,
+	backupNodesRegistry:   backupNodesRegistry,
+	lastBackupTime:        time.Now().UTC(),
+	logger:                logger.GetLogger(),
+	backupToNodeRelations: make(map[uuid.UUID]BackupToNodeRelation),
+	backuperNode:          backuperNode,
+	runOnce:               sync.Once{},
+	hasRun:                atomic.Bool{},
+}
+
+func GetBackupsScheduler() *BackupsScheduler {
+	return backupsScheduler
+}
+
+func GetBackuperNode() *BackuperNode {
+	return backuperNode
+}
+
+func GetBackupNodesRegistry() *BackupNodesRegistry {
+	return backupNodesRegistry
+}
+
+func GetBackupCleaner() *BackupCleaner {
+	return backupCleaner
+}

backend/internal/features/backups/backups/backuping/dto.go

@@ -0,0 +1,34 @@
+package backuping
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+)
+
+type BackupToNodeRelation struct {
+	NodeID     uuid.UUID   `json:"nodeId"`
+	BackupsIDs []uuid.UUID `json:"backupsIds"`
+}
+
+type BackupNode struct {
+	ID            uuid.UUID `json:"id"`
+	ThroughputMBs int       `json:"throughputMBs"`
+	LastHeartbeat time.Time `json:"lastHeartbeat"`
+}
+
+type BackupNodeStats struct {
+	ID            uuid.UUID `json:"id"`
+	ActiveBackups int       `json:"activeBackups"`
+}
+
+type BackupSubmitMessage struct {
+	NodeID         uuid.UUID `json:"nodeId"`
+	BackupID       uuid.UUID `json:"backupId"`
+	IsCallNotifier bool      `json:"isCallNotifier"`
+}
+
+type BackupCompletionMessage struct {
+	NodeID   uuid.UUID `json:"nodeId"`
+	BackupID uuid.UUID `json:"backupId"`
+}

backend/internal/features/backups/backups/backuping/mocks.go

@@ -0,0 +1,194 @@
+package backuping
+
+import (
+	"context"
+	"errors"
+	"sync/atomic"
+	"time"
+
+	common "databasus-backend/internal/features/backups/backups/common"
+	backups_config "databasus-backend/internal/features/backups/config"
+	"databasus-backend/internal/features/databases"
+	"databasus-backend/internal/features/notifiers"
+	"databasus-backend/internal/features/storages"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/mock"
+)
+
+type MockNotificationSender struct {
+	mock.Mock
+}
+
+func (m *MockNotificationSender) SendNotification(
+	notifier *notifiers.Notifier,
+	title string,
+	message string,
+) {
+	m.Called(notifier, title, message)
+}
+
+type CreateFailedBackupUsecase struct{}
+
+func (uc *CreateFailedBackupUsecase) Execute(
+	ctx context.Context,
+	backupID uuid.UUID,
+	backupConfig *backups_config.BackupConfig,
+	database *databases.Database,
+	storage *storages.Storage,
+	backupProgressListener func(completedMBs float64),
+) (*common.BackupMetadata, error) {
+	backupProgressListener(10)
+	return nil, errors.New("backup failed")
+}
+
+type CreateSuccessBackupUsecase struct{}
+
+func (uc *CreateSuccessBackupUsecase) Execute(
+	ctx context.Context,
+	backupID uuid.UUID,
+	backupConfig *backups_config.BackupConfig,
+	database *databases.Database,
+	storage *storages.Storage,
+	backupProgressListener func(completedMBs float64),
+) (*common.BackupMetadata, error) {
+	backupProgressListener(10)
+	return &common.BackupMetadata{
+		EncryptionSalt: nil,
+		EncryptionIV:   nil,
+		Encryption:     backups_config.BackupEncryptionNone,
+	}, nil
+}
+
+// CreateLargeBackupUsecase simulates a large backup (10000 MB)
+type CreateLargeBackupUsecase struct{}
+
+func (uc *CreateLargeBackupUsecase) Execute(
+	ctx context.Context,
+	backupID uuid.UUID,
+	backupConfig *backups_config.BackupConfig,
+	database *databases.Database,
+	storage *storages.Storage,
+	backupProgressListener func(completedMBs float64),
+) (*common.BackupMetadata, error) {
+	backupProgressListener(10000)
+	return &common.BackupMetadata{
+		EncryptionSalt: nil,
+		EncryptionIV:   nil,
+		Encryption:     backups_config.BackupEncryptionNone,
+	}, nil
+}
+
+// CreateProgressiveBackupUsecase simulates progressive size updates that exceed limit
+type CreateProgressiveBackupUsecase struct{}
+
+func (uc *CreateProgressiveBackupUsecase) Execute(
+	ctx context.Context,
+	backupID uuid.UUID,
+	backupConfig *backups_config.BackupConfig,
+	database *databases.Database,
+	storage *storages.Storage,
+	backupProgressListener func(completedMBs float64),
+) (*common.BackupMetadata, error) {
+	// Simulate progressive backup that grows beyond limit
+	backupProgressListener(1)
+	if ctx.Err() != nil {
+		return nil, ctx.Err()
+	}
+
+	backupProgressListener(3)
+	if ctx.Err() != nil {
+		return nil, ctx.Err()
+	}
+
+	backupProgressListener(5)
+	if ctx.Err() != nil {
+		return nil, ctx.Err()
+	}
+
+	backupProgressListener(10) // This exceeds the 5 MB limit
+	if ctx.Err() != nil {
+		return nil, ctx.Err()
+	}
+
+	// Should not reach here due to cancellation
+	return &common.BackupMetadata{
+		EncryptionSalt: nil,
+		EncryptionIV:   nil,
+		Encryption:     backups_config.BackupEncryptionNone,
+	}, nil
+}
+
+// CreateMediumBackupUsecase simulates a 50 MB backup
+type CreateMediumBackupUsecase struct{}
+
+func (uc *CreateMediumBackupUsecase) Execute(
+	ctx context.Context,
+	backupID uuid.UUID,
+	backupConfig *backups_config.BackupConfig,
+	database *databases.Database,
+	storage *storages.Storage,
+	backupProgressListener func(completedMBs float64),
+) (*common.BackupMetadata, error) {
+	backupProgressListener(50)
+	return &common.BackupMetadata{
+		EncryptionSalt: nil,
+		EncryptionIV:   nil,
+		Encryption:     backups_config.BackupEncryptionNone,
+	}, nil
+}
+
+// MockTrackingBackupUsecase tracks backup use case calls for testing parallel execution
+type MockTrackingBackupUsecase struct {
+	callCount       atomic.Int32
+	calledBackupIDs chan uuid.UUID
+}
+
+func NewMockTrackingBackupUsecase() *MockTrackingBackupUsecase {
+	return &MockTrackingBackupUsecase{
+		calledBackupIDs: make(chan uuid.UUID, 10),
+	}
+}
+
+func (m *MockTrackingBackupUsecase) Execute(
+	ctx context.Context,
+	backupID uuid.UUID,
+	backupConfig *backups_config.BackupConfig,
+	database *databases.Database,
+	storage *storages.Storage,
+	backupProgressListener func(completedMBs float64),
+) (*common.BackupMetadata, error) {
+	m.callCount.Add(1)
+
+	// Send backup ID to channel (non-blocking)
+	select {
+	case m.calledBackupIDs <- backupID:
+	default:
+	}
+
+	// Simulate backup work
+	time.Sleep(100 * time.Millisecond)
+	backupProgressListener(10)
+
+	return &common.BackupMetadata{
+		EncryptionSalt: nil,
+		EncryptionIV:   nil,
+		Encryption:     backups_config.BackupEncryptionNone,
+	}, nil
+}
+
+func (m *MockTrackingBackupUsecase) GetCallCount() int32 {
+	return m.callCount.Load()
+}
+
+func (m *MockTrackingBackupUsecase) GetCalledBackupIDs() []uuid.UUID {
+	ids := []uuid.UUID{}
+	for {
+		select {
+		case id := <-m.calledBackupIDs:
+			ids = append(ids, id)
+		default:
+			return ids
+		}
+	}
+}

backend/internal/features/backups/backups/backuping/registry.go

@@ -0,0 +1,633 @@
+package backuping
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"log/slog"
+	"strings"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	cache_utils "databasus-backend/internal/util/cache"
+
+	"github.com/google/uuid"
+	"github.com/valkey-io/valkey-go"
+)
+
+const (
+	nodeInfoKeyPrefix       = "backup:node:"
+	nodeInfoKeySuffix       = ":info"
+	nodeActiveBackupsPrefix = "backup:node:"
+	nodeActiveBackupsSuffix = ":active_backups"
+	backupSubmitChannel     = "backup:submit"
+	backupCompletionChannel = "backup:completion"
+
+	deadNodeThreshold     = 2 * time.Minute
+	cleanupTickerInterval = 1 * time.Second
+)
+
+// BackupNodesRegistry helps to sync backups scheduler and backup nodes.
+//
+// Features:
+// - Track node availability and load level
+// - Assign from scheduler to node backups needed to be processed
+// - Notify scheduler from node about backup completion
+//
+// Important things to remember:
+//   - Nodes without heartbeat for more than 2 minutes are not included
+//     in available nodes list and stats
+//
+// Cleanup dead nodes performed on 2 levels:
+//   - List and stats functions do not return dead nodes
+//   - Periodically dead nodes are cleaned up in cache (to not
+//     accumulate too many dead nodes in cache)
+type BackupNodesRegistry struct {
+	client            valkey.Client
+	logger            *slog.Logger
+	timeout           time.Duration
+	pubsubBackups     *cache_utils.PubSubManager
+	pubsubCompletions *cache_utils.PubSubManager
+
+	runOnce sync.Once
+	hasRun  atomic.Bool
+}
+
+func (r *BackupNodesRegistry) Run(ctx context.Context) {
+	wasAlreadyRun := r.hasRun.Load()
+
+	r.runOnce.Do(func() {
+		r.hasRun.Store(true)
+
+		if err := r.cleanupDeadNodes(); err != nil {
+			r.logger.Error("Failed to cleanup dead nodes on startup", "error", err)
+		}
+
+		ticker := time.NewTicker(cleanupTickerInterval)
+		defer ticker.Stop()
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case <-ticker.C:
+				if err := r.cleanupDeadNodes(); err != nil {
+					r.logger.Error("Failed to cleanup dead nodes", "error", err)
+				}
+			}
+		}
+	})
+
+	if wasAlreadyRun {
+		panic(fmt.Sprintf("%T.Run() called multiple times", r))
+	}
+}
+
+func (r *BackupNodesRegistry) GetAvailableNodes() ([]BackupNode, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
+	defer cancel()
+
+	var allKeys []string
+	cursor := uint64(0)
+	pattern := nodeInfoKeyPrefix + "*" + nodeInfoKeySuffix
+
+	for {
+		result := r.client.Do(
+			ctx,
+			r.client.B().Scan().Cursor(cursor).Match(pattern).Count(1_000).Build(),
+		)
+
+		if result.Error() != nil {
+			return nil, fmt.Errorf("failed to scan node keys: %w", result.Error())
+		}
+
+		scanResult, err := result.AsScanEntry()
+		if err != nil {
+			return nil, fmt.Errorf("failed to parse scan result: %w", err)
+		}
+
+		allKeys = append(allKeys, scanResult.Elements...)
+
+		cursor = scanResult.Cursor
+		if cursor == 0 {
+			break
+		}
+	}
+
+	if len(allKeys) == 0 {
+		return []BackupNode{}, nil
+	}
+
+	keyDataMap, err := r.pipelineGetKeys(allKeys)
+	if err != nil {
+		return nil, fmt.Errorf("failed to pipeline get node keys: %w", err)
+	}
+
+	threshold := time.Now().UTC().Add(-deadNodeThreshold)
+	var nodes []BackupNode
+
+	for key, data := range keyDataMap {
+		// Skip if the key doesn't exist (data is empty)
+		if len(data) == 0 {
+			continue
+		}
+
+		var node BackupNode
+		if err := json.Unmarshal(data, &node); err != nil {
+			r.logger.Warn("Failed to unmarshal node data", "key", key, "error", err)
+			continue
+		}
+
+		// Skip nodes with zero/uninitialized heartbeat
+		if node.LastHeartbeat.IsZero() {
+			continue
+		}
+
+		if node.LastHeartbeat.Before(threshold) {
+			continue
+		}
+
+		nodes = append(nodes, node)
+	}
+
+	return nodes, nil
+}
+
+func (r *BackupNodesRegistry) GetBackupNodesStats() ([]BackupNodeStats, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
+	defer cancel()
+
+	var allKeys []string
+	cursor := uint64(0)
+	pattern := nodeActiveBackupsPrefix + "*" + nodeActiveBackupsSuffix
+
+	for {
+		result := r.client.Do(
+			ctx,
+			r.client.B().Scan().Cursor(cursor).Match(pattern).Count(100).Build(),
+		)
+
+		if result.Error() != nil {
+			return nil, fmt.Errorf("failed to scan active backups keys: %w", result.Error())
+		}
+
+		scanResult, err := result.AsScanEntry()
+		if err != nil {
+			return nil, fmt.Errorf("failed to parse scan result: %w", err)
+		}
+
+		allKeys = append(allKeys, scanResult.Elements...)
+
+		cursor = scanResult.Cursor
+		if cursor == 0 {
+			break
+		}
+	}
+
+	if len(allKeys) == 0 {
+		return []BackupNodeStats{}, nil
+	}
+
+	keyDataMap, err := r.pipelineGetKeys(allKeys)
+	if err != nil {
+		return nil, fmt.Errorf("failed to pipeline get active backups keys: %w", err)
+	}
+
+	var nodeInfoKeys []string
+	nodeIDToStatsKey := make(map[string]string)
+	for key := range keyDataMap {
+		nodeID := r.extractNodeIDFromKey(key, nodeActiveBackupsPrefix, nodeActiveBackupsSuffix)
+		nodeIDStr := nodeID.String()
+		infoKey := fmt.Sprintf("%s%s%s", nodeInfoKeyPrefix, nodeIDStr, nodeInfoKeySuffix)
+		nodeInfoKeys = append(nodeInfoKeys, infoKey)
+		nodeIDToStatsKey[infoKey] = key
+	}
+
+	nodeInfoMap, err := r.pipelineGetKeys(nodeInfoKeys)
+	if err != nil {
+		return nil, fmt.Errorf("failed to pipeline get node info keys: %w", err)
+	}
+
+	threshold := time.Now().UTC().Add(-deadNodeThreshold)
+	var stats []BackupNodeStats
+	for infoKey, nodeData := range nodeInfoMap {
+		// Skip if the info key doesn't exist (nodeData is empty)
+		if len(nodeData) == 0 {
+			continue
+		}
+
+		var node BackupNode
+		if err := json.Unmarshal(nodeData, &node); err != nil {
+			r.logger.Warn("Failed to unmarshal node data", "key", infoKey, "error", err)
+			continue
+		}
+
+		// Skip nodes with zero/uninitialized heartbeat
+		if node.LastHeartbeat.IsZero() {
+			continue
+		}
+
+		if node.LastHeartbeat.Before(threshold) {
+			continue
+		}
+
+		statsKey := nodeIDToStatsKey[infoKey]
+		tasksData := keyDataMap[statsKey]
+		count, err := r.parseIntFromBytes(tasksData)
+		if err != nil {
+			r.logger.Warn("Failed to parse active backups count", "key", statsKey, "error", err)
+			continue
+		}
+
+		stat := BackupNodeStats{
+			ID:            node.ID,
+			ActiveBackups: int(count),
+		}
+		stats = append(stats, stat)
+	}
+
+	return stats, nil
+}
+
+func (r *BackupNodesRegistry) IncrementBackupsInProgress(nodeID uuid.UUID) error {
+	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
+	defer cancel()
+
+	key := fmt.Sprintf("%s%s%s", nodeActiveBackupsPrefix, nodeID.String(), nodeActiveBackupsSuffix)
+	result := r.client.Do(ctx, r.client.B().Incr().Key(key).Build())
+
+	if result.Error() != nil {
+		return fmt.Errorf(
+			"failed to increment backups in progress for node %s: %w",
+			nodeID,
+			result.Error(),
+		)
+	}
+
+	return nil
+}
+
+func (r *BackupNodesRegistry) DecrementBackupsInProgress(nodeID uuid.UUID) error {
+	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
+	defer cancel()
+
+	key := fmt.Sprintf("%s%s%s", nodeActiveBackupsPrefix, nodeID.String(), nodeActiveBackupsSuffix)
+	result := r.client.Do(ctx, r.client.B().Decr().Key(key).Build())
+
+	if result.Error() != nil {
+		return fmt.Errorf(
+			"failed to decrement backups in progress for node %s: %w",
+			nodeID,
+			result.Error(),
+		)
+	}
+
+	newValue, err := result.AsInt64()
+	if err != nil {
+		return fmt.Errorf("failed to parse decremented value for node %s: %w", nodeID, err)
+	}
+
+	if newValue < 0 {
+		setCtx, setCancel := context.WithTimeout(context.Background(), r.timeout)
+		r.client.Do(setCtx, r.client.B().Set().Key(key).Value("0").Build())
+		setCancel()
+		r.logger.Warn("Active backups counter went below 0, reset to 0", "nodeID", nodeID)
+	}
+
+	return nil
+}
+
+func (r *BackupNodesRegistry) HearthbeatNodeInRegistry(now time.Time, backupNode BackupNode) error {
+	if now.IsZero() {
+		return fmt.Errorf("cannot register node with zero heartbeat timestamp")
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
+	defer cancel()
+
+	backupNode.LastHeartbeat = now
+
+	data, err := json.Marshal(backupNode)
+	if err != nil {
+		return fmt.Errorf("failed to marshal backup node: %w", err)
+	}
+
+	key := fmt.Sprintf("%s%s%s", nodeInfoKeyPrefix, backupNode.ID.String(), nodeInfoKeySuffix)
+	result := r.client.Do(
+		ctx,
+		r.client.B().Set().Key(key).Value(string(data)).Build(),
+	)
+
+	if result.Error() != nil {
+		return fmt.Errorf("failed to register node %s: %w", backupNode.ID, result.Error())
+	}
+
+	return nil
+}
+
+func (r *BackupNodesRegistry) UnregisterNodeFromRegistry(backupNode BackupNode) error {
+	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
+	defer cancel()
+
+	infoKey := fmt.Sprintf("%s%s%s", nodeInfoKeyPrefix, backupNode.ID.String(), nodeInfoKeySuffix)
+	counterKey := fmt.Sprintf(
+		"%s%s%s",
+		nodeActiveBackupsPrefix,
+		backupNode.ID.String(),
+		nodeActiveBackupsSuffix,
+	)
+
+	result := r.client.Do(
+		ctx,
+		r.client.B().Del().Key(infoKey, counterKey).Build(),
+	)
+
+	if result.Error() != nil {
+		return fmt.Errorf("failed to unregister node %s: %w", backupNode.ID, result.Error())
+	}
+
+	r.logger.Info("Unregistered node from registry", "nodeID", backupNode.ID)
+	return nil
+}
+
+func (r *BackupNodesRegistry) AssignBackupToNode(
+	targetNodeID uuid.UUID,
+	backupID uuid.UUID,
+	isCallNotifier bool,
+) error {
+	ctx := context.Background()
+
+	message := BackupSubmitMessage{
+		NodeID:         targetNodeID,
+		BackupID:       backupID,
+		IsCallNotifier: isCallNotifier,
+	}
+
+	messageJSON, err := json.Marshal(message)
+	if err != nil {
+		return fmt.Errorf("failed to marshal backup submit message: %w", err)
+	}
+
+	err = r.pubsubBackups.Publish(ctx, backupSubmitChannel, string(messageJSON))
+	if err != nil {
+		return fmt.Errorf("failed to publish backup submit message: %w", err)
+	}
+
+	return nil
+}
+
+func (r *BackupNodesRegistry) SubscribeNodeForBackupsAssignment(
+	nodeID uuid.UUID,
+	handler func(backupID uuid.UUID, isCallNotifier bool),
+) error {
+	ctx := context.Background()
+
+	wrappedHandler := func(message string) {
+		var msg BackupSubmitMessage
+		if err := json.Unmarshal([]byte(message), &msg); err != nil {
+			r.logger.Warn("Failed to unmarshal backup submit message", "error", err)
+			return
+		}
+
+		if msg.NodeID != nodeID {
+			return
+		}
+
+		handler(msg.BackupID, msg.IsCallNotifier)
+	}
+
+	err := r.pubsubBackups.Subscribe(ctx, backupSubmitChannel, wrappedHandler)
+	if err != nil {
+		return fmt.Errorf("failed to subscribe to backup submit channel: %w", err)
+	}
+
+	r.logger.Info("Subscribed to backup submit channel", "nodeID", nodeID)
+	return nil
+}
+
+func (r *BackupNodesRegistry) UnsubscribeNodeForBackupsAssignments() error {
+	err := r.pubsubBackups.Close()
+	if err != nil {
+		return fmt.Errorf("failed to unsubscribe from backup submit channel: %w", err)
+	}
+
+	r.logger.Info("Unsubscribed from backup submit channel")
+	return nil
+}
+
+func (r *BackupNodesRegistry) PublishBackupCompletion(nodeID uuid.UUID, backupID uuid.UUID) error {
+	ctx := context.Background()
+
+	message := BackupCompletionMessage{
+		NodeID:   nodeID,
+		BackupID: backupID,
+	}
+
+	messageJSON, err := json.Marshal(message)
+	if err != nil {
+		return fmt.Errorf("failed to marshal backup completion message: %w", err)
+	}
+
+	err = r.pubsubCompletions.Publish(ctx, backupCompletionChannel, string(messageJSON))
+	if err != nil {
+		return fmt.Errorf("failed to publish backup completion message: %w", err)
+	}
+
+	return nil
+}
+
+func (r *BackupNodesRegistry) SubscribeForBackupsCompletions(
+	handler func(nodeID uuid.UUID, backupID uuid.UUID),
+) error {
+	ctx := context.Background()
+
+	wrappedHandler := func(message string) {
+		var msg BackupCompletionMessage
+		if err := json.Unmarshal([]byte(message), &msg); err != nil {
+			r.logger.Warn("Failed to unmarshal backup completion message", "error", err)
+			return
+		}
+
+		handler(msg.NodeID, msg.BackupID)
+	}
+
+	err := r.pubsubCompletions.Subscribe(ctx, backupCompletionChannel, wrappedHandler)
+	if err != nil {
+		return fmt.Errorf("failed to subscribe to backup completion channel: %w", err)
+	}
+
+	r.logger.Info("Subscribed to backup completion channel")
+	return nil
+}
+
+func (r *BackupNodesRegistry) UnsubscribeForBackupsCompletions() error {
+	err := r.pubsubCompletions.Close()
+	if err != nil {
+		return fmt.Errorf("failed to unsubscribe from backup completion channel: %w", err)
+	}
+
+	r.logger.Info("Unsubscribed from backup completion channel")
+	return nil
+}
+
+func (r *BackupNodesRegistry) extractNodeIDFromKey(key, prefix, suffix string) uuid.UUID {
+	nodeIDStr := strings.TrimPrefix(key, prefix)
+	nodeIDStr = strings.TrimSuffix(nodeIDStr, suffix)
+
+	nodeID, err := uuid.Parse(nodeIDStr)
+	if err != nil {
+		r.logger.Warn("Failed to parse node ID from key", "key", key, "error", err)
+		return uuid.Nil
+	}
+
+	return nodeID
+}
+
+func (r *BackupNodesRegistry) pipelineGetKeys(keys []string) (map[string][]byte, error) {
+	if len(keys) == 0 {
+		return make(map[string][]byte), nil
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
+	defer cancel()
+
+	commands := make([]valkey.Completed, 0, len(keys))
+	for _, key := range keys {
+		commands = append(commands, r.client.B().Get().Key(key).Build())
+	}
+
+	results := r.client.DoMulti(ctx, commands...)
+
+	keyDataMap := make(map[string][]byte, len(keys))
+	for i, result := range results {
+		if result.Error() != nil {
+			r.logger.Warn("Failed to get key in pipeline", "key", keys[i], "error", result.Error())
+			continue
+		}
+
+		data, err := result.AsBytes()
+		if err != nil {
+			r.logger.Warn("Failed to parse key data in pipeline", "key", keys[i], "error", err)
+			continue
+		}
+
+		keyDataMap[keys[i]] = data
+	}
+
+	return keyDataMap, nil
+}
+
+func (r *BackupNodesRegistry) parseIntFromBytes(data []byte) (int64, error) {
+	str := string(data)
+	var count int64
+	_, err := fmt.Sscanf(str, "%d", &count)
+	if err != nil {
+		return 0, fmt.Errorf("failed to parse integer from bytes: %w", err)
+	}
+	return count, nil
+}
+
+func (r *BackupNodesRegistry) cleanupDeadNodes() error {
+	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
+	defer cancel()
+
+	var allKeys []string
+	cursor := uint64(0)
+	pattern := nodeInfoKeyPrefix + "*" + nodeInfoKeySuffix
+
+	for {
+		result := r.client.Do(
+			ctx,
+			r.client.B().Scan().Cursor(cursor).Match(pattern).Count(1_000).Build(),
+		)
+
+		if result.Error() != nil {
+			return fmt.Errorf("failed to scan node keys: %w", result.Error())
+		}
+
+		scanResult, err := result.AsScanEntry()
+		if err != nil {
+			return fmt.Errorf("failed to parse scan result: %w", err)
+		}
+
+		allKeys = append(allKeys, scanResult.Elements...)
+
+		cursor = scanResult.Cursor
+		if cursor == 0 {
+			break
+		}
+	}
+
+	if len(allKeys) == 0 {
+		return nil
+	}
+
+	keyDataMap, err := r.pipelineGetKeys(allKeys)
+	if err != nil {
+		return fmt.Errorf("failed to pipeline get node keys: %w", err)
+	}
+
+	threshold := time.Now().UTC().Add(-deadNodeThreshold)
+	var deadNodeKeys []string
+
+	for key, data := range keyDataMap {
+		// Skip if the key doesn't exist (data is empty)
+		if len(data) == 0 {
+			continue
+		}
+
+		var node BackupNode
+		if err := json.Unmarshal(data, &node); err != nil {
+			r.logger.Warn("Failed to unmarshal node data during cleanup", "key", key, "error", err)
+			continue
+		}
+
+		// Skip nodes with zero/uninitialized heartbeat
+		if node.LastHeartbeat.IsZero() {
+			continue
+		}
+
+		if node.LastHeartbeat.Before(threshold) {
+			nodeID := node.ID.String()
+			infoKey := fmt.Sprintf("%s%s%s", nodeInfoKeyPrefix, nodeID, nodeInfoKeySuffix)
+			statsKey := fmt.Sprintf(
+				"%s%s%s",
+				nodeActiveBackupsPrefix,
+				nodeID,
+				nodeActiveBackupsSuffix,
+			)
+
+			deadNodeKeys = append(deadNodeKeys, infoKey, statsKey)
+			r.logger.Info(
+				"Marking node for cleanup",
+				"nodeID", nodeID,
+				"lastHeartbeat", node.LastHeartbeat,
+				"threshold", threshold,
+			)
+		}
+	}
+
+	if len(deadNodeKeys) == 0 {
+		return nil
+	}
+
+	delCtx, delCancel := context.WithTimeout(context.Background(), r.timeout)
+	defer delCancel()
+
+	result := r.client.Do(
+		delCtx,
+		r.client.B().Del().Key(deadNodeKeys...).Build(),
+	)
+
+	if result.Error() != nil {
+		return fmt.Errorf("failed to delete dead node keys: %w", result.Error())
+	}
+
+	deletedCount, err := result.AsInt64()
+	if err != nil {
+		return fmt.Errorf("failed to parse deleted count: %w", err)
+	}
+
+	r.logger.Info("Cleaned up dead nodes", "deletedKeysCount", deletedCount)
+	return nil
+}

backend/internal/features/backups/backups/backuping/scheduler.go

@@ -0,0 +1,563 @@
+package backuping
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	"github.com/google/uuid"
+
+	"databasus-backend/internal/config"
+	backups_core "databasus-backend/internal/features/backups/backups/core"
+	backups_config "databasus-backend/internal/features/backups/config"
+	task_cancellation "databasus-backend/internal/features/tasks/cancellation"
+)
+
+const (
+	schedulerStartupDelay         = 1 * time.Minute
+	schedulerTickerInterval       = 1 * time.Minute
+	schedulerHealthcheckThreshold = 5 * time.Minute
+)
+
+type BackupsScheduler struct {
+	backupRepository    *backups_core.BackupRepository
+	backupConfigService *backups_config.BackupConfigService
+	taskCancelManager   *task_cancellation.TaskCancelManager
+	backupNodesRegistry *BackupNodesRegistry
+
+	lastBackupTime time.Time
+	logger         *slog.Logger
+
+	backupToNodeRelations map[uuid.UUID]BackupToNodeRelation
+	backuperNode          *BackuperNode
+
+	runOnce sync.Once
+	hasRun  atomic.Bool
+}
+
+func (s *BackupsScheduler) Run(ctx context.Context) {
+	wasAlreadyRun := s.hasRun.Load()
+
+	s.runOnce.Do(func() {
+		s.hasRun.Store(true)
+
+		s.lastBackupTime = time.Now().UTC()
+
+		if config.GetEnv().IsManyNodesMode {
+			// wait other nodes to start
+			time.Sleep(schedulerStartupDelay)
+		}
+
+		if err := s.failBackupsInProgress(); err != nil {
+			s.logger.Error("Failed to fail backups in progress", "error", err)
+			panic(err)
+		}
+
+		err := s.backupNodesRegistry.SubscribeForBackupsCompletions(s.onBackupCompleted)
+		if err != nil {
+			s.logger.Error("Failed to subscribe to backup completions", "error", err)
+			panic(err)
+		}
+
+		defer func() {
+			if err := s.backupNodesRegistry.UnsubscribeForBackupsCompletions(); err != nil {
+				s.logger.Error("Failed to unsubscribe from backup completions", "error", err)
+			}
+		}()
+
+		if ctx.Err() != nil {
+			return
+		}
+
+		ticker := time.NewTicker(schedulerTickerInterval)
+		defer ticker.Stop()
+
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case <-ticker.C:
+				if err := s.checkDeadNodesAndFailBackups(); err != nil {
+					s.logger.Error("Failed to check dead nodes and fail backups", "error", err)
+				}
+
+				if err := s.runPendingBackups(); err != nil {
+					s.logger.Error("Failed to run pending backups", "error", err)
+				}
+
+				s.lastBackupTime = time.Now().UTC()
+			}
+		}
+	})
+
+	if wasAlreadyRun {
+		panic(fmt.Sprintf("%T.Run() called multiple times", s))
+	}
+}
+
+func (s *BackupsScheduler) IsSchedulerRunning() bool {
+	// if last backup time is more than 5 minutes ago, return false
+	return s.lastBackupTime.After(time.Now().UTC().Add(-schedulerHealthcheckThreshold))
+}
+
+func (s *BackupsScheduler) failBackupsInProgress() error {
+	backupsInProgress, err := s.backupRepository.FindByStatus(backups_core.BackupStatusInProgress)
+	if err != nil {
+		return err
+	}
+
+	for _, backup := range backupsInProgress {
+		if err := s.taskCancelManager.CancelTask(backup.ID); err != nil {
+			s.logger.Error(
+				"Failed to cancel backup via task cancel manager",
+				"backupId",
+				backup.ID,
+				"error",
+				err,
+			)
+		}
+
+		backupConfig, err := s.backupConfigService.GetBackupConfigByDbId(backup.DatabaseID)
+		if err != nil {
+			s.logger.Error("Failed to get backup config by database ID", "error", err)
+			continue
+		}
+
+		failMessage := "Backup failed due to application restart"
+		backup.FailMessage = &failMessage
+		backup.Status = backups_core.BackupStatusFailed
+		backup.BackupSizeMb = 0
+
+		s.backuperNode.SendBackupNotification(
+			backupConfig,
+			backup,
+			backups_config.NotificationBackupFailed,
+			&failMessage,
+		)
+
+		if err := s.backupRepository.Save(backup); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (s *BackupsScheduler) StartBackup(databaseID uuid.UUID, isCallNotifier bool) {
+	backupConfig, err := s.backupConfigService.GetBackupConfigByDbId(databaseID)
+	if err != nil {
+		s.logger.Error("Failed to get backup config by database ID", "error", err)
+		return
+	}
+
+	if backupConfig.StorageID == nil {
+		s.logger.Error("Backup config storage ID is nil", "databaseId", databaseID)
+		return
+	}
+
+	// Check for existing in-progress backups
+	inProgressBackups, err := s.backupRepository.FindByDatabaseIdAndStatus(
+		databaseID,
+		backups_core.BackupStatusInProgress,
+	)
+	if err != nil {
+		s.logger.Error(
+			"Failed to check for in-progress backups",
+			"databaseId",
+			databaseID,
+			"error",
+			err,
+		)
+		return
+	}
+
+	if len(inProgressBackups) > 0 {
+		s.logger.Warn(
+			"Backup already in progress for database, skipping new backup",
+			"databaseId",
+			databaseID,
+			"existingBackupId",
+			inProgressBackups[0].ID,
+		)
+		return
+	}
+
+	leastBusyNodeID, err := s.calculateLeastBusyNode()
+	if err != nil {
+		s.logger.Error(
+			"Failed to calculate least busy node",
+			"databaseId",
+			backupConfig.DatabaseID,
+			"error",
+			err,
+		)
+		return
+	}
+
+	backup := &backups_core.Backup{
+		DatabaseID:   backupConfig.DatabaseID,
+		StorageID:    *backupConfig.StorageID,
+		Status:       backups_core.BackupStatusInProgress,
+		BackupSizeMb: 0,
+		CreatedAt:    time.Now().UTC(),
+	}
+
+	if err := s.backupRepository.Save(backup); err != nil {
+		s.logger.Error(
+			"Failed to save backup",
+			"databaseId",
+			backupConfig.DatabaseID,
+			"error",
+			err,
+		)
+		return
+	}
+
+	if err := s.backupNodesRegistry.IncrementBackupsInProgress(*leastBusyNodeID); err != nil {
+		s.logger.Error(
+			"Failed to increment backups in progress",
+			"nodeId",
+			leastBusyNodeID,
+			"backupId",
+			backup.ID,
+			"error",
+			err,
+		)
+		return
+	}
+
+	if err := s.backupNodesRegistry.AssignBackupToNode(*leastBusyNodeID, backup.ID, isCallNotifier); err != nil {
+		s.logger.Error(
+			"Failed to submit backup",
+			"nodeId",
+			leastBusyNodeID,
+			"backupId",
+			backup.ID,
+			"error",
+			err,
+		)
+		if decrementErr := s.backupNodesRegistry.DecrementBackupsInProgress(*leastBusyNodeID); decrementErr != nil {
+			s.logger.Error(
+				"Failed to decrement backups in progress after submit failure",
+				"nodeId",
+				leastBusyNodeID,
+				"error",
+				decrementErr,
+			)
+		}
+		return
+	}
+
+	if relation, exists := s.backupToNodeRelations[*leastBusyNodeID]; exists {
+		relation.BackupsIDs = append(relation.BackupsIDs, backup.ID)
+		s.backupToNodeRelations[*leastBusyNodeID] = relation
+	} else {
+		s.backupToNodeRelations[*leastBusyNodeID] = BackupToNodeRelation{
+			NodeID:     *leastBusyNodeID,
+			BackupsIDs: []uuid.UUID{backup.ID},
+		}
+	}
+
+	s.logger.Info(
+		"Successfully triggered scheduled backup",
+		"databaseId",
+		backupConfig.DatabaseID,
+		"backupId",
+		backup.ID,
+		"nodeId",
+		leastBusyNodeID,
+	)
+}
+
+// GetRemainedBackupTryCount returns the number of remaining backup tries for a given backup.
+// If the backup is not failed or the backup config does not allow retries, it returns 0.
+// If the backup is failed and the backup config allows retries, it returns the number of remaining tries.
+// If the backup is failed and the backup config does not allow retries, it returns 0.
+func (s *BackupsScheduler) GetRemainedBackupTryCount(lastBackup *backups_core.Backup) int {
+	if lastBackup == nil {
+		return 0
+	}
+
+	if lastBackup.Status != backups_core.BackupStatusFailed {
+		return 0
+	}
+
+	if lastBackup.IsSkipRetry {
+		return 0
+	}
+
+	backupConfig, err := s.backupConfigService.GetBackupConfigByDbId(lastBackup.DatabaseID)
+	if err != nil {
+		s.logger.Error("Failed to get backup config by database ID", "error", err)
+		return 0
+	}
+
+	if !backupConfig.IsRetryIfFailed {
+		return 0
+	}
+
+	maxFailedTriesCount := backupConfig.MaxFailedTriesCount
+
+	lastBackups, err := s.backupRepository.FindByDatabaseIDWithLimit(
+		lastBackup.DatabaseID,
+		maxFailedTriesCount,
+	)
+	if err != nil {
+		s.logger.Error("Failed to find last backups by database ID", "error", err)
+		return 0
+	}
+
+	lastFailedBackups := make([]*backups_core.Backup, 0)
+
+	for _, backup := range lastBackups {
+		if backup.Status == backups_core.BackupStatusFailed {
+			lastFailedBackups = append(lastFailedBackups, backup)
+		}
+	}
+
+	return maxFailedTriesCount - len(lastFailedBackups)
+}
+
+func (s *BackupsScheduler) runPendingBackups() error {
+	enabledBackupConfigs, err := s.backupConfigService.GetBackupConfigsWithEnabledBackups()
+	if err != nil {
+		return err
+	}
+
+	for _, backupConfig := range enabledBackupConfigs {
+		if backupConfig.BackupInterval == nil {
+			continue
+		}
+
+		lastBackup, err := s.backupRepository.FindLastByDatabaseID(backupConfig.DatabaseID)
+		if err != nil {
+			s.logger.Error(
+				"Failed to get last backup for database",
+				"databaseId",
+				backupConfig.DatabaseID,
+				"error",
+				err,
+			)
+			continue
+		}
+
+		var lastBackupTime *time.Time
+		if lastBackup != nil {
+			lastBackupTime = &lastBackup.CreatedAt
+		}
+
+		remainedBackupTryCount := s.GetRemainedBackupTryCount(lastBackup)
+
+		if backupConfig.BackupInterval.ShouldTriggerBackup(time.Now().UTC(), lastBackupTime) ||
+			remainedBackupTryCount > 0 {
+			s.logger.Info(
+				"Triggering scheduled backup",
+				"databaseId",
+				backupConfig.DatabaseID,
+				"intervalType",
+				backupConfig.BackupInterval.Interval,
+			)
+
+			s.StartBackup(backupConfig.DatabaseID, remainedBackupTryCount == 1)
+			continue
+		}
+	}
+
+	return nil
+}
+
+func (s *BackupsScheduler) calculateLeastBusyNode() (*uuid.UUID, error) {
+	nodes, err := s.backupNodesRegistry.GetAvailableNodes()
+	if err != nil {
+		return nil, fmt.Errorf("failed to get available nodes: %w", err)
+	}
+
+	if len(nodes) == 0 {
+		return nil, fmt.Errorf("no nodes available")
+	}
+
+	stats, err := s.backupNodesRegistry.GetBackupNodesStats()
+	if err != nil {
+		return nil, fmt.Errorf("failed to get backup nodes stats: %w", err)
+	}
+
+	statsMap := make(map[uuid.UUID]int)
+	for _, stat := range stats {
+		statsMap[stat.ID] = stat.ActiveBackups
+	}
+
+	var bestNode *BackupNode
+	var bestScore float64 = -1
+
+	for i := range nodes {
+		node := &nodes[i]
+
+		activeBackups := statsMap[node.ID]
+
+		var score float64
+		if node.ThroughputMBs > 0 {
+			score = float64(activeBackups) / float64(node.ThroughputMBs)
+		} else {
+			score = float64(activeBackups) * 1000
+		}
+
+		if bestNode == nil || score < bestScore {
+			bestNode = node
+			bestScore = score
+		}
+	}
+
+	if bestNode == nil {
+		return nil, fmt.Errorf("no suitable nodes available")
+	}
+
+	return &bestNode.ID, nil
+}
+
+func (s *BackupsScheduler) onBackupCompleted(nodeID uuid.UUID, backupID uuid.UUID) {
+	// Verify this task is actually a backup (registry contains multiple task types)
+	_, err := s.backupRepository.FindByID(backupID)
+	if err != nil {
+		// Not a backup task, ignore it
+		return
+	}
+
+	relation, exists := s.backupToNodeRelations[nodeID]
+	if !exists {
+		s.logger.Warn(
+			"Received completion for unknown node",
+			"nodeId",
+			nodeID,
+			"backupId",
+			backupID,
+		)
+		return
+	}
+
+	newBackupIDs := make([]uuid.UUID, 0)
+	found := false
+	for _, id := range relation.BackupsIDs {
+		if id == backupID {
+			found = true
+			continue
+		}
+		newBackupIDs = append(newBackupIDs, id)
+	}
+
+	if !found {
+		s.logger.Warn(
+			"Backup not found in node's backup list",
+			"nodeId",
+			nodeID,
+			"backupId",
+			backupID,
+		)
+		return
+	}
+
+	if len(newBackupIDs) == 0 {
+		delete(s.backupToNodeRelations, nodeID)
+	} else {
+		relation.BackupsIDs = newBackupIDs
+		s.backupToNodeRelations[nodeID] = relation
+	}
+
+	if err := s.backupNodesRegistry.DecrementBackupsInProgress(nodeID); err != nil {
+		s.logger.Error(
+			"Failed to decrement backups in progress",
+			"nodeId",
+			nodeID,
+			"backupId",
+			backupID,
+			"error",
+			err,
+		)
+	}
+}
+
+func (s *BackupsScheduler) checkDeadNodesAndFailBackups() error {
+	nodes, err := s.backupNodesRegistry.GetAvailableNodes()
+	if err != nil {
+		return fmt.Errorf("failed to get available nodes: %w", err)
+	}
+
+	aliveNodeIDs := make(map[uuid.UUID]bool)
+	for _, node := range nodes {
+		aliveNodeIDs[node.ID] = true
+	}
+
+	for nodeID, relation := range s.backupToNodeRelations {
+		if aliveNodeIDs[nodeID] {
+			continue
+		}
+
+		s.logger.Warn(
+			"Node is dead, failing its backups",
+			"nodeId",
+			nodeID,
+			"backupCount",
+			len(relation.BackupsIDs),
+		)
+
+		for _, backupID := range relation.BackupsIDs {
+			backup, err := s.backupRepository.FindByID(backupID)
+			if err != nil {
+				s.logger.Error(
+					"Failed to find backup for dead node",
+					"nodeId",
+					nodeID,
+					"backupId",
+					backupID,
+					"error",
+					err,
+				)
+				continue
+			}
+
+			failMessage := "Backup failed due to node unavailability"
+			backup.FailMessage = &failMessage
+			backup.Status = backups_core.BackupStatusFailed
+			backup.BackupSizeMb = 0
+
+			if err := s.backupRepository.Save(backup); err != nil {
+				s.logger.Error(
+					"Failed to save failed backup for dead node",
+					"nodeId",
+					nodeID,
+					"backupId",
+					backupID,
+					"error",
+					err,
+				)
+				continue
+			}
+
+			if err := s.backupNodesRegistry.DecrementBackupsInProgress(nodeID); err != nil {
+				s.logger.Error(
+					"Failed to decrement backups in progress for dead node",
+					"nodeId",
+					nodeID,
+					"backupId",
+					backupID,
+					"error",
+					err,
+				)
+			}
+
+			s.logger.Info(
+				"Failed backup due to dead node",
+				"nodeId",
+				nodeID,
+				"backupId",
+				backupID,
+			)
+		}
+
+		delete(s.backupToNodeRelations, nodeID)
+	}
+
+	return nil
+}

backend/internal/features/backups/backups/backuping/testing.go

@@ -0,0 +1,318 @@
+package backuping
+
+import (
+	"context"
+	"fmt"
+	"sync"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	backups_core "databasus-backend/internal/features/backups/backups/core"
+	"databasus-backend/internal/features/backups/backups/usecases"
+	backups_config "databasus-backend/internal/features/backups/config"
+	"databasus-backend/internal/features/databases"
+	"databasus-backend/internal/features/notifiers"
+	"databasus-backend/internal/features/storages"
+	workspaces_controllers "databasus-backend/internal/features/workspaces/controllers"
+	workspaces_services "databasus-backend/internal/features/workspaces/services"
+	workspaces_testing "databasus-backend/internal/features/workspaces/testing"
+	"databasus-backend/internal/util/encryption"
+	"databasus-backend/internal/util/logger"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+)
+
+func CreateTestRouter() *gin.Engine {
+	router := workspaces_testing.CreateTestRouter(
+		workspaces_controllers.GetWorkspaceController(),
+		workspaces_controllers.GetMembershipController(),
+		databases.GetDatabaseController(),
+		backups_config.GetBackupConfigController(),
+	)
+
+	return router
+}
+
+func CreateTestBackuperNode() *BackuperNode {
+	return &BackuperNode{
+		databaseService:     databases.GetDatabaseService(),
+		fieldEncryptor:      encryption.GetFieldEncryptor(),
+		workspaceService:    workspaces_services.GetWorkspaceService(),
+		backupRepository:    backupRepository,
+		backupConfigService: backups_config.GetBackupConfigService(),
+		storageService:      storages.GetStorageService(),
+		notificationSender:  notifiers.GetNotifierService(),
+		backupCancelManager: taskCancelManager,
+		backupNodesRegistry: backupNodesRegistry,
+		logger:              logger.GetLogger(),
+		createBackupUseCase: usecases.GetCreateBackupUsecase(),
+		nodeID:              uuid.New(),
+		lastHeartbeat:       time.Time{},
+		runOnce:             sync.Once{},
+		hasRun:              atomic.Bool{},
+	}
+}
+
+func CreateTestBackuperNodeWithUseCase(useCase backups_core.CreateBackupUsecase) *BackuperNode {
+	return &BackuperNode{
+		databaseService:     databases.GetDatabaseService(),
+		fieldEncryptor:      encryption.GetFieldEncryptor(),
+		workspaceService:    workspaces_services.GetWorkspaceService(),
+		backupRepository:    backupRepository,
+		backupConfigService: backups_config.GetBackupConfigService(),
+		storageService:      storages.GetStorageService(),
+		notificationSender:  notifiers.GetNotifierService(),
+		backupCancelManager: taskCancelManager,
+		backupNodesRegistry: backupNodesRegistry,
+		logger:              logger.GetLogger(),
+		createBackupUseCase: useCase,
+		nodeID:              uuid.New(),
+		lastHeartbeat:       time.Time{},
+		runOnce:             sync.Once{},
+		hasRun:              atomic.Bool{},
+	}
+}
+
+func CreateTestScheduler() *BackupsScheduler {
+	return &BackupsScheduler{
+		backupRepository:      backupRepository,
+		backupConfigService:   backups_config.GetBackupConfigService(),
+		taskCancelManager:     taskCancelManager,
+		backupNodesRegistry:   backupNodesRegistry,
+		lastBackupTime:        time.Now().UTC(),
+		logger:                logger.GetLogger(),
+		backupToNodeRelations: make(map[uuid.UUID]BackupToNodeRelation),
+		backuperNode:          CreateTestBackuperNode(),
+		runOnce:               sync.Once{},
+		hasRun:                atomic.Bool{},
+	}
+}
+
+// WaitForBackupCompletion waits for a new backup to be created and completed (or failed)
+// for the given database. It checks for backups with count greater than expectedInitialCount.
+func WaitForBackupCompletion(
+	t *testing.T,
+	databaseID uuid.UUID,
+	expectedInitialCount int,
+	timeout time.Duration,
+) {
+	deadline := time.Now().UTC().Add(timeout)
+
+	for time.Now().UTC().Before(deadline) {
+		backups, err := backupRepository.FindByDatabaseID(databaseID)
+		if err != nil {
+			t.Logf("WaitForBackupCompletion: error finding backups: %v", err)
+			time.Sleep(50 * time.Millisecond)
+			continue
+		}
+
+		t.Logf(
+			"WaitForBackupCompletion: found %d backups (expected > %d)",
+			len(backups),
+			expectedInitialCount,
+		)
+
+		if len(backups) > expectedInitialCount {
+			// Check if the newest backup has completed or failed
+			newestBackup := backups[0]
+			t.Logf("WaitForBackupCompletion: newest backup status: %s", newestBackup.Status)
+
+			if newestBackup.Status == backups_core.BackupStatusCompleted ||
+				newestBackup.Status == backups_core.BackupStatusFailed ||
+				newestBackup.Status == backups_core.BackupStatusCanceled {
+				t.Logf(
+					"WaitForBackupCompletion: backup finished with status %s",
+					newestBackup.Status,
+				)
+				return
+			}
+		}
+
+		time.Sleep(50 * time.Millisecond)
+	}
+
+	t.Logf("WaitForBackupCompletion: timeout waiting for backup to complete")
+}
+
+// StartBackuperNodeForTest starts a BackuperNode in a goroutine for testing.
+// The node registers itself in the registry and subscribes to backup assignments.
+// Returns a context cancel function that should be deferred to stop the node.
+func StartBackuperNodeForTest(t *testing.T, backuperNode *BackuperNode) context.CancelFunc {
+	ctx, cancel := context.WithCancel(context.Background())
+
+	done := make(chan struct{})
+
+	go func() {
+		backuperNode.Run(ctx)
+		close(done)
+	}()
+
+	// Poll registry for node presence instead of fixed sleep
+	deadline := time.Now().UTC().Add(5 * time.Second)
+	for time.Now().UTC().Before(deadline) {
+		nodes, err := backupNodesRegistry.GetAvailableNodes()
+		if err == nil {
+			for _, node := range nodes {
+				if node.ID == backuperNode.nodeID {
+					t.Logf("BackuperNode registered in registry: %s", backuperNode.nodeID)
+
+					return func() {
+						cancel()
+						select {
+						case <-done:
+							t.Log("BackuperNode stopped gracefully")
+						case <-time.After(2 * time.Second):
+							t.Log("BackuperNode stop timeout")
+						}
+					}
+				}
+			}
+		}
+		time.Sleep(50 * time.Millisecond)
+	}
+
+	t.Fatalf("BackuperNode failed to register in registry within timeout")
+	return nil
+}
+
+// StartSchedulerForTest starts the BackupsScheduler in a goroutine for testing.
+// The scheduler subscribes to task completions and manages backup lifecycle.
+// Returns a context cancel function that should be deferred to stop the scheduler.
+func StartSchedulerForTest(t *testing.T, scheduler *BackupsScheduler) context.CancelFunc {
+	ctx, cancel := context.WithCancel(context.Background())
+
+	done := make(chan struct{})
+
+	go func() {
+		scheduler.Run(ctx)
+		close(done)
+	}()
+
+	// Give scheduler time to subscribe to completions
+	time.Sleep(100 * time.Millisecond)
+	t.Log("BackupsScheduler started")
+
+	return func() {
+		cancel()
+		select {
+		case <-done:
+			t.Log("BackupsScheduler stopped gracefully")
+		case <-time.After(2 * time.Second):
+			t.Log("BackupsScheduler stop timeout")
+		}
+	}
+}
+
+// StopBackuperNodeForTest stops the BackuperNode by canceling its context.
+// It waits for the node to unregister from the registry.
+func StopBackuperNodeForTest(t *testing.T, cancel context.CancelFunc, backuperNode *BackuperNode) {
+	cancel()
+
+	// Wait for node to unregister from registry
+	deadline := time.Now().UTC().Add(2 * time.Second)
+	for time.Now().UTC().Before(deadline) {
+		nodes, err := backupNodesRegistry.GetAvailableNodes()
+		if err == nil {
+			found := false
+			for _, node := range nodes {
+				if node.ID == backuperNode.nodeID {
+					found = true
+					break
+				}
+			}
+			if !found {
+				t.Logf("BackuperNode unregistered from registry: %s", backuperNode.nodeID)
+				return
+			}
+		}
+		time.Sleep(50 * time.Millisecond)
+	}
+
+	t.Logf("BackuperNode stop completed for %s", backuperNode.nodeID)
+}
+
+func CreateMockNodeInRegistry(nodeID uuid.UUID, throughputMBs int, lastHeartbeat time.Time) error {
+	backupNode := BackupNode{
+		ID:            nodeID,
+		ThroughputMBs: throughputMBs,
+		LastHeartbeat: lastHeartbeat,
+	}
+
+	return backupNodesRegistry.HearthbeatNodeInRegistry(lastHeartbeat, backupNode)
+}
+
+func UpdateNodeHeartbeatDirectly(
+	nodeID uuid.UUID,
+	throughputMBs int,
+	lastHeartbeat time.Time,
+) error {
+	backupNode := BackupNode{
+		ID:            nodeID,
+		ThroughputMBs: throughputMBs,
+		LastHeartbeat: lastHeartbeat,
+	}
+
+	return backupNodesRegistry.HearthbeatNodeInRegistry(lastHeartbeat, backupNode)
+}
+
+func GetNodeFromRegistry(nodeID uuid.UUID) (*BackupNode, error) {
+	nodes, err := backupNodesRegistry.GetAvailableNodes()
+	if err != nil {
+		return nil, err
+	}
+
+	for _, node := range nodes {
+		if node.ID == nodeID {
+			return &node, nil
+		}
+	}
+
+	return nil, fmt.Errorf("node not found")
+}
+
+// WaitForActiveTasksDecrease waits for the active task count to decrease below the initial count.
+// It polls the registry every 500ms until the count decreases or the timeout is reached.
+// Returns true if the count decreased, false if timeout was reached.
+func WaitForActiveTasksDecrease(
+	t *testing.T,
+	nodeID uuid.UUID,
+	initialCount int,
+	timeout time.Duration,
+) bool {
+	deadline := time.Now().UTC().Add(timeout)
+
+	for time.Now().UTC().Before(deadline) {
+		stats, err := backupNodesRegistry.GetBackupNodesStats()
+		if err != nil {
+			t.Logf("WaitForActiveTasksDecrease: error getting node stats: %v", err)
+			time.Sleep(500 * time.Millisecond)
+			continue
+		}
+
+		for _, stat := range stats {
+			if stat.ID == nodeID {
+				t.Logf(
+					"WaitForActiveTasksDecrease: current active tasks = %d (initial = %d)",
+					stat.ActiveBackups,
+					initialCount,
+				)
+				if stat.ActiveBackups < initialCount {
+					t.Logf(
+						"WaitForActiveTasksDecrease: active tasks decreased from %d to %d",
+						initialCount,
+						stat.ActiveBackups,
+					)
+					return true
+				}
+				break
+			}
+		}
+
+		time.Sleep(500 * time.Millisecond)
+	}
+
+	t.Logf("WaitForActiveTasksDecrease: timeout waiting for active tasks to decrease")
+	return false
+}

backend/internal/features/backups/backups/controller.go

@@ -1,11 +1,15 @@
 package backups
 
 import (
+	"context"
+	backups_core "databasus-backend/internal/features/backups/backups/core"
+	backups_download "databasus-backend/internal/features/backups/backups/download"
 	"databasus-backend/internal/features/databases"
 	users_middleware "databasus-backend/internal/features/users/middleware"
 	"fmt"
 	"io"
 	"net/http"
+	"time"
 
 	"github.com/gin-gonic/gin"
 	"github.com/google/uuid"
@@ -18,11 +22,17 @@ type BackupController struct {
 func (c *BackupController) RegisterRoutes(router *gin.RouterGroup) {
 	router.GET("/backups", c.GetBackups)
 	router.POST("/backups", c.MakeBackup)
-	router.GET("/backups/:id/file", c.GetFile)
+	router.POST("/backups/:id/download-token", c.GenerateDownloadToken)
 	router.DELETE("/backups/:id", c.DeleteBackup)
 	router.POST("/backups/:id/cancel", c.CancelBackup)
 }
 
+// RegisterPublicRoutes registers routes that don't require Bearer authentication
+// (they have their own authentication mechanisms like download tokens)
+func (c *BackupController) RegisterPublicRoutes(router *gin.RouterGroup) {
+	router.GET("/backups/:id/file", c.GetFile)
+}
+
 // GetBackups
 // @Summary Get backups for a database
 // @Description Get paginated backups for the specified database
@@ -159,17 +169,17 @@ func (c *BackupController) CancelBackup(ctx *gin.Context) {
 	ctx.Status(http.StatusNoContent)
 }
 
-// GetFile
-// @Summary Download a backup file
-// @Description Download the backup file for the specified backup
+// GenerateDownloadToken
+// @Summary Generate short-lived download token
+// @Description Generate a token for downloading a backup file (valid for 5 minutes)
 // @Tags backups
 // @Param id path string true "Backup ID"
-// @Success 200 {file} file
+// @Success 200 {object} backups_download.GenerateDownloadTokenResponse
 // @Failure 400
 // @Failure 401
-// @Failure 500
-// @Router /backups/{id}/file [get]
-func (c *BackupController) GetFile(ctx *gin.Context) {
+// @Failure 409 {object} map[string]string "Download already in progress"
+// @Router /backups/{id}/download-token [post]
+func (c *BackupController) GenerateDownloadToken(ctx *gin.Context) {
 	user, ok := users_middleware.GetUserFromContext(ctx)
 	if !ok {
 		ctx.JSON(http.StatusUnauthorized, gin.H{"error": "User not authenticated"})
@@ -182,30 +192,122 @@ func (c *BackupController) GetFile(ctx *gin.Context) {
 		return
 	}
 
-	fileReader, backup, database, err := c.backupService.GetBackupFile(user, id)
+	response, err := c.backupService.GenerateDownloadToken(user, id)
 	if err != nil {
+		if err == backups_download.ErrDownloadAlreadyInProgress {
+			ctx.JSON(
+				http.StatusConflict,
+				gin.H{
+					"error": "Download already in progress for some of backups. Please wait until previous download completed or cancel it",
+				},
+			)
+			return
+		}
 		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 		return
 	}
+
+	ctx.JSON(http.StatusOK, response)
+}
+
+// GetFile
+// @Summary Download a backup file
+// @Description Download the backup file for the specified backup using a download token.
+// @Description
+// @Description **Download Concurrency Control:**
+// @Description - Only one download per user is allowed at a time
+// @Description - If a download is already in progress, returns 409 Conflict
+// @Description - Downloads are tracked using cache with 5-second TTL and 3-second heartbeat
+// @Description - Browser cancellations automatically release the download lock
+// @Description - Server crashes are handled via automatic cache expiry (5 seconds)
+// @Tags backups
+// @Param id path string true "Backup ID"
+// @Param token query string true "Download token"
+// @Success 200 {file} file
+// @Failure 400 {object} map[string]string
+// @Failure 401 {object} map[string]string
+// @Failure 409 {object} map[string]string "Download already in progress"
+// @Failure 500 {object} map[string]string
+// @Router /backups/{id}/file [get]
+func (c *BackupController) GetFile(ctx *gin.Context) {
+	token := ctx.Query("token")
+	if token == "" {
+		ctx.JSON(http.StatusUnauthorized, gin.H{"error": "download token is required"})
+		return
+	}
+
+	backupIDParam := ctx.Param("id")
+	backupID, err := uuid.Parse(backupIDParam)
+	if err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "invalid backup ID"})
+		return
+	}
+
+	downloadToken, rateLimiter, err := c.backupService.ValidateDownloadToken(token)
+	if err != nil {
+		if err == backups_download.ErrDownloadAlreadyInProgress {
+			ctx.JSON(
+				http.StatusConflict,
+				gin.H{
+					"error": "download already in progress for this user. Please wait until previous download completed or cancel it",
+				},
+			)
+			return
+		}
+
+		ctx.JSON(http.StatusUnauthorized, gin.H{"error": "invalid or expired download token"})
+		return
+	}
+
+	if downloadToken.BackupID != backupID {
+		ctx.JSON(http.StatusUnauthorized, gin.H{"error": "invalid or expired download token"})
+		return
+	}
+
+	fileReader, backup, database, err := c.backupService.GetBackupFileWithoutAuth(
+		downloadToken.BackupID,
+	)
+	if err != nil {
+		c.backupService.UnregisterDownload(downloadToken.UserID)
+		c.backupService.ReleaseDownloadLock(downloadToken.UserID)
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	rateLimitedReader := backups_download.NewRateLimitedReader(fileReader, rateLimiter)
+
+	heartbeatCtx, cancelHeartbeat := context.WithCancel(context.Background())
 	defer func() {
-		if err := fileReader.Close(); err != nil {
+		cancelHeartbeat()
+		c.backupService.UnregisterDownload(downloadToken.UserID)
+		c.backupService.ReleaseDownloadLock(downloadToken.UserID)
+		if err := rateLimitedReader.Close(); err != nil {
 			fmt.Printf("Error closing file reader: %v\n", err)
 		}
 	}()
 
+	go c.startDownloadHeartbeat(heartbeatCtx, downloadToken.UserID)
+
 	filename := c.generateBackupFilename(backup, database)
 
+	if backup.BackupSizeMb > 0 {
+		sizeBytes := int64(backup.BackupSizeMb * 1024 * 1024)
+		ctx.Header("Content-Length", fmt.Sprintf("%d", sizeBytes))
+	}
+
 	ctx.Header("Content-Type", "application/octet-stream")
 	ctx.Header(
 		"Content-Disposition",
 		fmt.Sprintf("attachment; filename=\"%s\"", filename),
 	)
 
-	_, err = io.Copy(ctx.Writer, fileReader)
+	_, err = io.Copy(ctx.Writer, rateLimitedReader)
 	if err != nil {
-		ctx.JSON(http.StatusInternalServerError, gin.H{"error": "failed to stream file"})
+		fmt.Printf("Error streaming file: %v\n", err)
 		return
 	}
+
+	c.backupService.WriteAuditLogForDownload(downloadToken.UserID, backup, database)
 }
 
 type MakeBackupRequest struct {
@@ -213,7 +315,7 @@ type MakeBackupRequest struct {
 }
 
 func (c *BackupController) generateBackupFilename(
-	backup *Backup,
+	backup *backups_core.Backup,
 	database *databases.Database,
 ) string {
 	// Format timestamp as YYYY-MM-DD_HH-mm-ss
@@ -270,3 +372,17 @@ func sanitizeFilename(name string) string {
 
 	return string(result)
 }
+
+func (c *BackupController) startDownloadHeartbeat(ctx context.Context, userID uuid.UUID) {
+	ticker := time.NewTicker(backups_download.GetDownloadHeartbeatInterval())
+	defer ticker.Stop()
+
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case <-ticker.C:
+			c.backupService.RefreshDownloadLock(userID)
+		}
+	}
+}

backend/internal/features/backups/backups/controller_test.go

@@ -7,6 +7,7 @@ import (
 	"io"
 	"log/slog"
 	"net/http"
+	"strconv"
 	"strings"
 	"testing"
 	"time"
@@ -15,7 +16,10 @@ import (
 	"github.com/google/uuid"
 	"github.com/stretchr/testify/assert"
 
+	"databasus-backend/internal/config"
 	audit_logs "databasus-backend/internal/features/audit_logs"
+	backups_core "databasus-backend/internal/features/backups/backups/core"
+	backups_download "databasus-backend/internal/features/backups/backups/download"
 	backups_config "databasus-backend/internal/features/backups/config"
 	"databasus-backend/internal/features/databases"
 	"databasus-backend/internal/features/databases/databases/postgresql"
@@ -87,7 +91,13 @@ func Test_GetBackups_PermissionsEnforced(t *testing.T) {
 					testUserToken = owner.Token
 				} else {
 					member := users_testing.CreateTestUser(users_enums.UserRoleMember)
-					workspaces_testing.AddMemberToWorkspace(workspace, member, *tt.workspaceRole, owner.Token, router)
+					workspaces_testing.AddMemberToWorkspace(
+						workspace,
+						member,
+						*tt.workspaceRole,
+						owner.Token,
+						router,
+					)
 					testUserToken = member.Token
 				}
 			} else {
@@ -179,7 +189,13 @@ func Test_CreateBackup_PermissionsEnforced(t *testing.T) {
 					testUserToken = owner.Token
 				} else {
 					member := users_testing.CreateTestUser(users_enums.UserRoleMember)
-					workspaces_testing.AddMemberToWorkspace(workspace, member, *tt.workspaceRole, owner.Token, router)
+					workspaces_testing.AddMemberToWorkspace(
+						workspace,
+						member,
+						*tt.workspaceRole,
+						owner.Token,
+						router,
+					)
 					testUserToken = member.Token
 				}
 			} else {
@@ -309,7 +325,13 @@ func Test_DeleteBackup_PermissionsEnforced(t *testing.T) {
 					testUserToken = owner.Token
 				} else {
 					member := users_testing.CreateTestUser(users_enums.UserRoleMember)
-					workspaces_testing.AddMemberToWorkspace(workspace, member, *tt.workspaceRole, owner.Token, router)
+					workspaces_testing.AddMemberToWorkspace(
+						workspace,
+						member,
+						*tt.workspaceRole,
+						owner.Token,
+						router,
+					)
 					testUserToken = member.Token
 				}
 			} else {
@@ -378,7 +400,7 @@ func Test_DeleteBackup_AuditLogWritten(t *testing.T) {
 	assert.True(t, found, "Audit log for backup deletion not found")
 }
 
-func Test_DownloadBackup_PermissionsEnforced(t *testing.T) {
+func Test_GenerateDownloadToken_PermissionsEnforced(t *testing.T) {
 	tests := []struct {
 		name               string
 		workspaceRole      *users_enums.WorkspaceRole
@@ -387,28 +409,28 @@ func Test_DownloadBackup_PermissionsEnforced(t *testing.T) {
 		expectedStatusCode int
 	}{
 		{
-			name:               "workspace viewer can download backup",
+			name:               "workspace viewer can generate token",
 			workspaceRole:      func() *users_enums.WorkspaceRole { r := users_enums.WorkspaceRoleViewer; return &r }(),
 			isGlobalAdmin:      false,
 			expectSuccess:      true,
 			expectedStatusCode: http.StatusOK,
 		},
 		{
-			name:               "workspace member can download backup",
+			name:               "workspace member can generate token",
 			workspaceRole:      func() *users_enums.WorkspaceRole { r := users_enums.WorkspaceRoleMember; return &r }(),
 			isGlobalAdmin:      false,
 			expectSuccess:      true,
 			expectedStatusCode: http.StatusOK,
 		},
 		{
-			name:               "non-member cannot download backup",
+			name:               "non-member cannot generate token",
 			workspaceRole:      nil,
 			isGlobalAdmin:      false,
 			expectSuccess:      false,
 			expectedStatusCode: http.StatusBadRequest,
 		},
 		{
-			name:               "global admin can download backup",
+			name:               "global admin can generate token",
 			workspaceRole:      nil,
 			isGlobalAdmin:      true,
 			expectSuccess:      true,
@@ -433,7 +455,13 @@ func Test_DownloadBackup_PermissionsEnforced(t *testing.T) {
 					testUserToken = owner.Token
 				} else {
 					member := users_testing.CreateTestUser(users_enums.UserRoleMember)
-					workspaces_testing.AddMemberToWorkspace(workspace, member, *tt.workspaceRole, owner.Token, router)
+					workspaces_testing.AddMemberToWorkspace(
+						workspace,
+						member,
+						*tt.workspaceRole,
+						owner.Token,
+						router,
+					)
 					testUserToken = member.Token
 				}
 			} else {
@@ -441,21 +469,244 @@ func Test_DownloadBackup_PermissionsEnforced(t *testing.T) {
 				testUserToken = nonMember.Token
 			}
 
-			testResp := test_utils.MakeGetRequest(
+			testResp := test_utils.MakePostRequest(
 				t,
 				router,
-				fmt.Sprintf("/api/v1/backups/%s/file", backup.ID.String()),
+				fmt.Sprintf("/api/v1/backups/%s/download-token", backup.ID.String()),
 				"Bearer "+testUserToken,
+				nil,
 				tt.expectedStatusCode,
 			)
 
-			if !tt.expectSuccess {
+			if tt.expectSuccess {
+				var response backups_download.GenerateDownloadTokenResponse
+				err := json.Unmarshal(testResp.Body, &response)
+				assert.NoError(t, err)
+				assert.NotEmpty(t, response.Token)
+				assert.NotEmpty(t, response.Filename)
+				assert.Equal(t, backup.ID, response.BackupID)
+			} else {
 				assert.Contains(t, string(testResp.Body), "insufficient permissions")
 			}
 		})
 	}
 }
 
+func Test_DownloadBackup_WithValidToken_Success(t *testing.T) {
+	router := createTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+
+	_, backup := createTestDatabaseWithBackups(workspace, owner, router)
+
+	// Generate download token
+	var tokenResponse backups_download.GenerateDownloadTokenResponse
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/download-token", backup.ID.String()),
+		"Bearer "+owner.Token,
+		nil,
+		http.StatusOK,
+		&tokenResponse,
+	)
+
+	// Download with token
+	testResp := test_utils.MakeGetRequest(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/file?token=%s", backup.ID.String(), tokenResponse.Token),
+		"",
+		http.StatusOK,
+	)
+
+	// Verify response
+	contentDisposition := testResp.Headers.Get("Content-Disposition")
+	assert.Contains(t, contentDisposition, "attachment")
+	assert.Contains(t, contentDisposition, tokenResponse.Filename)
+}
+
+func Test_DownloadBackup_WithoutToken_Unauthorized(t *testing.T) {
+	router := createTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+
+	_, backup := createTestDatabaseWithBackups(workspace, owner, router)
+
+	// Try to download without token
+	testResp := test_utils.MakeGetRequest(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/file", backup.ID.String()),
+		"",
+		http.StatusUnauthorized,
+	)
+
+	assert.Contains(t, string(testResp.Body), "download token is required")
+}
+
+func Test_DownloadBackup_WithInvalidToken_Unauthorized(t *testing.T) {
+	router := createTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+
+	_, backup := createTestDatabaseWithBackups(workspace, owner, router)
+
+	// Try to download with invalid token
+	testResp := test_utils.MakeGetRequest(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/file?token=%s", backup.ID.String(), "invalid-token-xyz"),
+		"",
+		http.StatusUnauthorized,
+	)
+
+	assert.Contains(t, string(testResp.Body), "invalid or expired download token")
+}
+
+func Test_DownloadBackup_WithExpiredToken_Unauthorized(t *testing.T) {
+	router := createTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+
+	database, backup := createTestDatabaseWithBackups(workspace, owner, router)
+
+	// Get user for token generation
+	userService := users_services.GetUserService()
+	user, err := userService.GetUserFromToken(owner.Token)
+	assert.NoError(t, err)
+
+	// Create an expired token directly in the database
+	expiredToken := createExpiredDownloadToken(backup.ID, user.ID)
+
+	// Try to download with expired token
+	testResp := test_utils.MakeGetRequest(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/file?token=%s", backup.ID.String(), expiredToken),
+		"",
+		http.StatusUnauthorized,
+	)
+
+	assert.Contains(t, string(testResp.Body), "invalid or expired download token")
+
+	// Verify audit log was NOT created for failed download
+	time.Sleep(100 * time.Millisecond)
+	auditLogService := audit_logs.GetAuditLogService()
+	auditLogs, err := auditLogService.GetWorkspaceAuditLogs(
+		workspace.ID,
+		&audit_logs.GetAuditLogsRequest{
+			Limit:  100,
+			Offset: 0,
+		},
+	)
+	assert.NoError(t, err)
+
+	found := false
+	for _, log := range auditLogs.AuditLogs {
+		if strings.Contains(log.Message, "Backup file downloaded") &&
+			strings.Contains(log.Message, database.Name) {
+			found = true
+			break
+		}
+	}
+	assert.False(t, found, "Audit log should NOT be created for failed download with expired token")
+}
+
+func Test_DownloadBackup_TokenUsedOnce_CannotReuseToken(t *testing.T) {
+	router := createTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+
+	_, backup := createTestDatabaseWithBackups(workspace, owner, router)
+
+	// Generate download token
+	var tokenResponse backups_download.GenerateDownloadTokenResponse
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/download-token", backup.ID.String()),
+		"Bearer "+owner.Token,
+		nil,
+		http.StatusOK,
+		&tokenResponse,
+	)
+
+	// Download with token (first time - should succeed)
+	test_utils.MakeGetRequest(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/file?token=%s", backup.ID.String(), tokenResponse.Token),
+		"",
+		http.StatusOK,
+	)
+
+	// Try to download again with same token (should fail)
+	testResp := test_utils.MakeGetRequest(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/file?token=%s", backup.ID.String(), tokenResponse.Token),
+		"",
+		http.StatusUnauthorized,
+	)
+
+	assert.Contains(t, string(testResp.Body), "invalid or expired download token")
+}
+
+func Test_DownloadBackup_WithDifferentBackupToken_Unauthorized(t *testing.T) {
+	router := createTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+
+	database1 := createTestDatabase("Database 1", workspace.ID, owner.Token, router)
+	storage := createTestStorage(workspace.ID)
+
+	configService := backups_config.GetBackupConfigService()
+	config1, err := configService.GetBackupConfigByDbId(database1.ID)
+	assert.NoError(t, err)
+	config1.IsBackupsEnabled = true
+	config1.StorageID = &storage.ID
+	config1.Storage = storage
+	_, err = configService.SaveBackupConfig(config1)
+	assert.NoError(t, err)
+
+	backup1 := createTestBackup(database1, owner)
+
+	database2 := createTestDatabase("Database 2", workspace.ID, owner.Token, router)
+	config2, err := configService.GetBackupConfigByDbId(database2.ID)
+	assert.NoError(t, err)
+	config2.IsBackupsEnabled = true
+	config2.StorageID = &storage.ID
+	config2.Storage = storage
+	_, err = configService.SaveBackupConfig(config2)
+	assert.NoError(t, err)
+
+	backup2 := createTestBackup(database2, owner)
+
+	// Generate token for backup1
+	var tokenResponse backups_download.GenerateDownloadTokenResponse
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/download-token", backup1.ID.String()),
+		"Bearer "+owner.Token,
+		nil,
+		http.StatusOK,
+		&tokenResponse,
+	)
+
+	// Try to use backup1's token to download backup2 (should fail)
+	testResp := test_utils.MakeGetRequest(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/file?token=%s", backup2.ID.String(), tokenResponse.Token),
+		"",
+		http.StatusUnauthorized,
+	)
+
+	assert.Contains(t, string(testResp.Body), "invalid or expired download token")
+}
+
 func Test_DownloadBackup_AuditLogWritten(t *testing.T) {
 	router := createTestRouter()
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
@@ -463,11 +714,24 @@ func Test_DownloadBackup_AuditLogWritten(t *testing.T) {
 
 	database, backup := createTestDatabaseWithBackups(workspace, owner, router)
 
+	// Generate download token
+	var tokenResponse backups_download.GenerateDownloadTokenResponse
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/download-token", backup.ID.String()),
+		"Bearer "+owner.Token,
+		nil,
+		http.StatusOK,
+		&tokenResponse,
+	)
+
+	// Download with token
 	test_utils.MakeGetRequest(
 		t,
 		router,
-		fmt.Sprintf("/api/v1/backups/%s/file", backup.ID.String()),
-		"Bearer "+owner.Token,
+		fmt.Sprintf("/api/v1/backups/%s/file?token=%s", backup.ID.String(), tokenResponse.Token),
+		"",
 		http.StatusOK,
 	)
 
@@ -542,11 +806,28 @@ func Test_DownloadBackup_ProperFilenameForPostgreSQL(t *testing.T) {
 
 			backup := createTestBackup(database, owner)
 
+			// Generate download token
+			var tokenResponse backups_download.GenerateDownloadTokenResponse
+			test_utils.MakePostRequestAndUnmarshal(
+				t,
+				router,
+				fmt.Sprintf("/api/v1/backups/%s/download-token", backup.ID.String()),
+				"Bearer "+owner.Token,
+				nil,
+				http.StatusOK,
+				&tokenResponse,
+			)
+
+			// Download with token
 			resp := test_utils.MakeGetRequest(
 				t,
 				router,
-				fmt.Sprintf("/api/v1/backups/%s/file", backup.ID.String()),
-				"Bearer "+owner.Token,
+				fmt.Sprintf(
+					"/api/v1/backups/%s/file?token=%s",
+					backup.ID.String(),
+					tokenResponse.Token,
+				),
+				"",
 				http.StatusOK,
 			)
 
@@ -617,22 +898,22 @@ func Test_CancelBackup_InProgressBackup_SuccessfullyCancelled(t *testing.T) {
 	_, err = configService.SaveBackupConfig(config)
 	assert.NoError(t, err)
 
-	backup := &Backup{
+	backup := &backups_core.Backup{
 		ID:               uuid.New(),
 		DatabaseID:       database.ID,
 		StorageID:        storage.ID,
-		Status:           BackupStatusInProgress,
+		Status:           backups_core.BackupStatusInProgress,
 		BackupSizeMb:     0,
 		BackupDurationMs: 0,
 		CreatedAt:        time.Now().UTC(),
 	}
 
-	repo := &BackupRepository{}
+	repo := &backups_core.BackupRepository{}
 	err = repo.Save(backup)
 	assert.NoError(t, err)
 
 	// Register a cancellable context for the backup
-	GetBackupService().backupContextManager.RegisterBackup(backup.ID, func() {})
+	GetBackupService().taskCancelManager.RegisterTask(backup.ID, func() {})
 
 	resp := test_utils.MakePostRequest(
 		t,
@@ -669,6 +950,189 @@ func Test_CancelBackup_InProgressBackup_SuccessfullyCancelled(t *testing.T) {
 	assert.True(t, foundCancelLog, "Cancel audit log should be created")
 }
 
+func Test_ConcurrentDownloadPrevention(t *testing.T) {
+	router := createTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+
+	database, backup := createTestDatabaseWithBackups(workspace, owner, router)
+
+	var token1Response backups_download.GenerateDownloadTokenResponse
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/download-token", backup.ID.String()),
+		"Bearer "+owner.Token,
+		nil,
+		http.StatusOK,
+		&token1Response,
+	)
+
+	var token2Response backups_download.GenerateDownloadTokenResponse
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/download-token", backup.ID.String()),
+		"Bearer "+owner.Token,
+		nil,
+		http.StatusOK,
+		&token2Response,
+	)
+
+	downloadInProgress := make(chan bool, 1)
+	downloadComplete := make(chan bool, 1)
+
+	go func() {
+		test_utils.MakeGetRequest(
+			t,
+			router,
+			fmt.Sprintf(
+				"/api/v1/backups/%s/file?token=%s",
+				backup.ID.String(),
+				token1Response.Token,
+			),
+			"",
+			http.StatusOK,
+		)
+		downloadComplete <- true
+	}()
+
+	time.Sleep(50 * time.Millisecond)
+
+	service := GetBackupService()
+	if !service.IsDownloadInProgress(owner.UserID) {
+		t.Log("Warning: First download completed before we could test concurrency")
+		<-downloadComplete
+		return
+	}
+
+	downloadInProgress <- true
+
+	resp := test_utils.MakeGetRequest(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/file?token=%s", backup.ID.String(), token2Response.Token),
+		"",
+		http.StatusConflict,
+	)
+
+	var errorResponse map[string]string
+	err := json.Unmarshal(resp.Body, &errorResponse)
+	assert.NoError(t, err)
+	assert.Contains(t, errorResponse["error"], "download already in progress")
+
+	<-downloadComplete
+	<-downloadInProgress
+
+	time.Sleep(100 * time.Millisecond)
+
+	var token3Response backups_download.GenerateDownloadTokenResponse
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/download-token", backup.ID.String()),
+		"Bearer "+owner.Token,
+		nil,
+		http.StatusOK,
+		&token3Response,
+	)
+
+	test_utils.MakeGetRequest(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/file?token=%s", backup.ID.String(), token3Response.Token),
+		"",
+		http.StatusOK,
+	)
+
+	t.Log("Database:", database.Name)
+	t.Log(
+		"Successfully prevented concurrent downloads and allowed subsequent downloads after completion",
+	)
+}
+
+func Test_GenerateDownloadToken_BlockedWhenDownloadInProgress(t *testing.T) {
+	router := createTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+
+	database, backup := createTestDatabaseWithBackups(workspace, owner, router)
+
+	var token1Response backups_download.GenerateDownloadTokenResponse
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/download-token", backup.ID.String()),
+		"Bearer "+owner.Token,
+		nil,
+		http.StatusOK,
+		&token1Response,
+	)
+
+	downloadComplete := make(chan bool, 1)
+
+	go func() {
+		test_utils.MakeGetRequest(
+			t,
+			router,
+			fmt.Sprintf(
+				"/api/v1/backups/%s/file?token=%s",
+				backup.ID.String(),
+				token1Response.Token,
+			),
+			"",
+			http.StatusOK,
+		)
+		downloadComplete <- true
+	}()
+
+	time.Sleep(50 * time.Millisecond)
+
+	service := GetBackupService()
+	if !service.IsDownloadInProgress(owner.UserID) {
+		t.Log("Warning: First download completed before we could test token generation blocking")
+		<-downloadComplete
+		return
+	}
+
+	resp := test_utils.MakePostRequest(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/download-token", backup.ID.String()),
+		"Bearer "+owner.Token,
+		nil,
+		http.StatusConflict,
+	)
+
+	var errorResponse map[string]string
+	err := json.Unmarshal(resp.Body, &errorResponse)
+	assert.NoError(t, err)
+	assert.Contains(t, errorResponse["error"], "download already in progress")
+
+	<-downloadComplete
+
+	time.Sleep(100 * time.Millisecond)
+
+	var token2Response backups_download.GenerateDownloadTokenResponse
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/download-token", backup.ID.String()),
+		"Bearer "+owner.Token,
+		nil,
+		http.StatusOK,
+		&token2Response,
+	)
+
+	assert.NotEmpty(t, token2Response.Token)
+	assert.NotEqual(t, token1Response.Token, token2Response.Token)
+
+	t.Log("Database:", database.Name)
+	t.Log(
+		"Successfully blocked token generation during download and allowed generation after completion",
+	)
+}
+
 func createTestRouter() *gin.Engine {
 	return CreateTestRouter()
 }
@@ -679,17 +1143,23 @@ func createTestDatabase(
 	token string,
 	router *gin.Engine,
 ) *databases.Database {
-	testDbName := "test_db"
+	env := config.GetEnv()
+	port, err := strconv.Atoi(env.TestPostgres16Port)
+	if err != nil {
+		panic(fmt.Sprintf("Failed to parse TEST_POSTGRES_16_PORT: %v", err))
+	}
+
+	testDbName := "testdb"
 	request := databases.Database{
 		Name:        name,
 		WorkspaceID: &workspaceID,
 		Type:        databases.DatabaseTypePostgres,
 		Postgresql: &postgresql.PostgresqlDatabase{
 			Version:  tools.PostgresqlVersion16,
-			Host:     "localhost",
-			Port:     5432,
-			Username: "postgres",
-			Password: "postgres",
+			Host:     config.GetEnv().TestLocalhost,
+			Port:     port,
+			Username: "testuser",
+			Password: "testpassword",
 			Database: &testDbName,
 			CpuCount: 1,
 		},
@@ -752,7 +1222,7 @@ func createTestDatabaseWithBackups(
 	workspace *workspaces_models.Workspace,
 	owner *users_dto.SignInResponseDTO,
 	router *gin.Engine,
-) (*databases.Database, *Backup) {
+) (*databases.Database, *backups_core.Backup) {
 	database := createTestDatabase("Test Database", workspace.ID, owner.Token, router)
 	storage := createTestStorage(workspace.ID)
 
@@ -778,7 +1248,7 @@ func createTestDatabaseWithBackups(
 func createTestBackup(
 	database *databases.Database,
 	owner *users_dto.SignInResponseDTO,
-) *Backup {
+) *backups_core.Backup {
 	userService := users_services.GetUserService()
 	user, err := userService.GetUserFromToken(owner.Token)
 	if err != nil {
@@ -790,17 +1260,17 @@ func createTestBackup(
 		panic("No storage found for workspace")
 	}
 
-	backup := &Backup{
+	backup := &backups_core.Backup{
 		ID:               uuid.New(),
 		DatabaseID:       database.ID,
 		StorageID:        storages[0].ID,
-		Status:           BackupStatusCompleted,
+		Status:           backups_core.BackupStatusCompleted,
 		BackupSizeMb:     10.5,
 		BackupDurationMs: 1000,
 		CreatedAt:        time.Now().UTC(),
 	}
 
-	repo := &BackupRepository{}
+	repo := &backups_core.BackupRepository{}
 	if err := repo.Save(backup); err != nil {
 		panic(err)
 	}
@@ -809,9 +1279,302 @@ func createTestBackup(
 	dummyContent := []byte("dummy backup content for testing")
 	reader := strings.NewReader(string(dummyContent))
 	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
-	if err := storages[0].SaveFile(context.Background(), encryption.GetFieldEncryptor(), logger, backup.ID, reader); err != nil {
+	if err := storages[0].SaveFile(
+		context.Background(),
+		encryption.GetFieldEncryptor(),
+		logger,
+		backup.ID,
+		reader,
+	); err != nil {
 		panic(fmt.Sprintf("Failed to create test backup file: %v", err))
 	}
 
 	return backup
 }
+
+func createExpiredDownloadToken(backupID, userID uuid.UUID) string {
+	tokenService := GetBackupService().downloadTokenService
+	token, err := tokenService.Generate(backupID, userID)
+	if err != nil {
+		panic(fmt.Sprintf("Failed to generate download token: %v", err))
+	}
+
+	// Manually update the token to be expired
+	repo := &backups_download.DownloadTokenRepository{}
+	downloadToken, err := repo.FindByToken(token)
+	if err != nil || downloadToken == nil {
+		panic(fmt.Sprintf("Failed to find generated token: %v", err))
+	}
+
+	// Set expiration to 10 minutes ago
+	downloadToken.ExpiresAt = time.Now().UTC().Add(-10 * time.Minute)
+	if err := repo.Update(downloadToken); err != nil {
+		panic(fmt.Sprintf("Failed to update token expiration: %v", err))
+	}
+
+	return token
+}
+
+func Test_BandwidthThrottling_SingleDownload_Uses75Percent(t *testing.T) {
+	router := createTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+
+	_, backup := createTestDatabaseWithBackups(workspace, owner, router)
+
+	bandwidthManager := backups_download.GetBandwidthManager()
+	initialCount := bandwidthManager.GetActiveDownloadCount()
+
+	var tokenResponse backups_download.GenerateDownloadTokenResponse
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/download-token", backup.ID.String()),
+		"Bearer "+owner.Token,
+		nil,
+		http.StatusOK,
+		&tokenResponse,
+	)
+
+	downloadStarted := make(chan bool, 1)
+	downloadComplete := make(chan bool, 1)
+
+	go func() {
+		test_utils.MakeGetRequest(
+			t,
+			router,
+			fmt.Sprintf(
+				"/api/v1/backups/%s/file?token=%s",
+				backup.ID.String(),
+				tokenResponse.Token,
+			),
+			"",
+			http.StatusOK,
+		)
+		downloadComplete <- true
+	}()
+
+	time.Sleep(50 * time.Millisecond)
+
+	activeCount := bandwidthManager.GetActiveDownloadCount()
+	if activeCount > initialCount {
+		downloadStarted <- true
+		assert.Equal(t, initialCount+1, activeCount, "Should have one active download")
+	}
+
+	<-downloadComplete
+	if len(downloadStarted) > 0 {
+		<-downloadStarted
+	}
+
+	time.Sleep(50 * time.Millisecond)
+	finalCount := bandwidthManager.GetActiveDownloadCount()
+	assert.Equal(t, initialCount, finalCount, "Download should be unregistered after completion")
+}
+
+func Test_BandwidthThrottling_MultipleDownloads_ShareBandwidth(t *testing.T) {
+	router := createTestRouter()
+	owner1 := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	owner2 := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	owner3 := users_testing.CreateTestUser(users_enums.UserRoleMember)
+
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner1, router)
+	workspaces_testing.AddMemberToWorkspace(
+		workspace,
+		owner2,
+		users_enums.WorkspaceRoleMember,
+		owner1.Token,
+		router,
+	)
+	workspaces_testing.AddMemberToWorkspace(
+		workspace,
+		owner3,
+		users_enums.WorkspaceRoleMember,
+		owner1.Token,
+		router,
+	)
+
+	database := createTestDatabase("Test Database", workspace.ID, owner1.Token, router)
+	storage := createTestStorage(workspace.ID)
+
+	configService := backups_config.GetBackupConfigService()
+	config, err := configService.GetBackupConfigByDbId(database.ID)
+	assert.NoError(t, err)
+
+	config.IsBackupsEnabled = true
+	config.StorageID = &storage.ID
+	config.Storage = storage
+	_, err = configService.SaveBackupConfig(config)
+	assert.NoError(t, err)
+
+	backup1 := createTestBackup(database, owner1)
+	backup2 := createTestBackup(database, owner2)
+	backup3 := createTestBackup(database, owner3)
+
+	var token1, token2, token3 backups_download.GenerateDownloadTokenResponse
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/download-token", backup1.ID.String()),
+		"Bearer "+owner1.Token,
+		nil,
+		http.StatusOK,
+		&token1,
+	)
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/download-token", backup2.ID.String()),
+		"Bearer "+owner2.Token,
+		nil,
+		http.StatusOK,
+		&token2,
+	)
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/download-token", backup3.ID.String()),
+		"Bearer "+owner3.Token,
+		nil,
+		http.StatusOK,
+		&token3,
+	)
+
+	bandwidthManager := backups_download.GetBandwidthManager()
+	initialCount := bandwidthManager.GetActiveDownloadCount()
+
+	complete1 := make(chan bool, 1)
+	complete2 := make(chan bool, 1)
+	complete3 := make(chan bool, 1)
+
+	go func() {
+		test_utils.MakeGetRequest(
+			t,
+			router,
+			fmt.Sprintf("/api/v1/backups/%s/file?token=%s", backup1.ID.String(), token1.Token),
+			"",
+			http.StatusOK,
+		)
+		complete1 <- true
+	}()
+
+	go func() {
+		test_utils.MakeGetRequest(
+			t,
+			router,
+			fmt.Sprintf("/api/v1/backups/%s/file?token=%s", backup2.ID.String(), token2.Token),
+			"",
+			http.StatusOK,
+		)
+		complete2 <- true
+	}()
+
+	go func() {
+		test_utils.MakeGetRequest(
+			t,
+			router,
+			fmt.Sprintf("/api/v1/backups/%s/file?token=%s", backup3.ID.String(), token3.Token),
+			"",
+			http.StatusOK,
+		)
+		complete3 <- true
+	}()
+
+	time.Sleep(100 * time.Millisecond)
+
+	<-complete1
+	<-complete2
+	<-complete3
+
+	time.Sleep(100 * time.Millisecond)
+	finalCount := bandwidthManager.GetActiveDownloadCount()
+	assert.Equal(t, initialCount, finalCount, "All downloads should be unregistered")
+}
+
+func Test_BandwidthThrottling_DynamicAdjustment(t *testing.T) {
+	router := createTestRouter()
+	owner1 := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	owner2 := users_testing.CreateTestUser(users_enums.UserRoleMember)
+
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner1, router)
+	workspaces_testing.AddMemberToWorkspace(
+		workspace,
+		owner2,
+		users_enums.WorkspaceRoleMember,
+		owner1.Token,
+		router,
+	)
+
+	database := createTestDatabase("Test Database", workspace.ID, owner1.Token, router)
+	storage := createTestStorage(workspace.ID)
+
+	configService := backups_config.GetBackupConfigService()
+	config, err := configService.GetBackupConfigByDbId(database.ID)
+	assert.NoError(t, err)
+
+	config.IsBackupsEnabled = true
+	config.StorageID = &storage.ID
+	config.Storage = storage
+	_, err = configService.SaveBackupConfig(config)
+	assert.NoError(t, err)
+
+	backup1 := createTestBackup(database, owner1)
+	backup2 := createTestBackup(database, owner2)
+
+	var token1, token2 backups_download.GenerateDownloadTokenResponse
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/download-token", backup1.ID.String()),
+		"Bearer "+owner1.Token,
+		nil,
+		http.StatusOK,
+		&token1,
+	)
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/backups/%s/download-token", backup2.ID.String()),
+		"Bearer "+owner2.Token,
+		nil,
+		http.StatusOK,
+		&token2,
+	)
+
+	bandwidthManager := backups_download.GetBandwidthManager()
+	initialCount := bandwidthManager.GetActiveDownloadCount()
+
+	complete1 := make(chan bool, 1)
+	complete2 := make(chan bool, 1)
+
+	go func() {
+		test_utils.MakeGetRequest(
+			t,
+			router,
+			fmt.Sprintf("/api/v1/backups/%s/file?token=%s", backup1.ID.String(), token1.Token),
+			"",
+			http.StatusOK,
+		)
+		complete1 <- true
+	}()
+
+	time.Sleep(50 * time.Millisecond)
+
+	go func() {
+		test_utils.MakeGetRequest(
+			t,
+			router,
+			fmt.Sprintf("/api/v1/backups/%s/file?token=%s", backup2.ID.String(), token2.Token),
+			"",
+			http.StatusOK,
+		)
+		complete2 <- true
+	}()
+
+	<-complete1
+	<-complete2
+
+	time.Sleep(100 * time.Millisecond)
+	finalCount := bandwidthManager.GetActiveDownloadCount()
+	assert.Equal(t, initialCount, finalCount, "All downloads completed and unregistered")
+}

backend/internal/features/backups/backups/core/enums.go

@@ -1,4 +1,4 @@
-package backups
+package backups_core
 
 type BackupStatus string
 

backend/internal/features/backups/backups/core/interfaces.go

@@ -1,4 +1,4 @@
-package backups
+package backups_core
 
 import (
 	"context"

backend/internal/features/backups/backups/core/model.go

@@ -1,4 +1,4 @@
-package backups
+package backups_core
 
 import (
 	backups_config "databasus-backend/internal/features/backups/config"
@@ -15,6 +15,7 @@ type Backup struct {
 
 	Status      BackupStatus `json:"status"      gorm:"column:status;not null"`
 	FailMessage *string      `json:"failMessage" gorm:"column:fail_message"`
+	IsSkipRetry bool         `json:"isSkipRetry" gorm:"column:is_skip_retry;type:boolean;not null"`
 
 	BackupSizeMb float64 `json:"backupSizeMb" gorm:"column:backup_size_mb;default:0"`
 

backend/internal/features/backups/backups/core/repository.go

@@ -1,4 +1,4 @@
-package backups
+package backups_core
 
 import (
 	"databasus-backend/internal/storage"
@@ -212,3 +212,36 @@ func (r *BackupRepository) CountByDatabaseID(databaseID uuid.UUID) (int64, error
 
 	return count, nil
 }
+
+func (r *BackupRepository) GetTotalSizeByDatabase(databaseID uuid.UUID) (float64, error) {
+	var totalSize float64
+
+	if err := storage.
+		GetDb().
+		Model(&Backup{}).
+		Select("COALESCE(SUM(backup_size_mb), 0)").
+		Where("database_id = ? AND status != ?", databaseID, BackupStatusInProgress).
+		Scan(&totalSize).Error; err != nil {
+		return 0, err
+	}
+
+	return totalSize, nil
+}
+
+func (r *BackupRepository) FindOldestByDatabaseExcludingInProgress(
+	databaseID uuid.UUID,
+	limit int,
+) ([]*Backup, error) {
+	var backups []*Backup
+
+	if err := storage.
+		GetDb().
+		Where("database_id = ? AND status != ?", databaseID, BackupStatusInProgress).
+		Order("created_at ASC").
+		Limit(limit).
+		Find(&backups).Error; err != nil {
+		return nil, err
+	}
+
+	return backups, nil
+}

backend/internal/features/backups/backups/di.go

@@ -1,23 +1,28 @@
 package backups
 
 import (
-	"time"
+	"sync"
+	"sync/atomic"
 
 	audit_logs "databasus-backend/internal/features/audit_logs"
+	"databasus-backend/internal/features/backups/backups/backuping"
+	backups_core "databasus-backend/internal/features/backups/backups/core"
+	backups_download "databasus-backend/internal/features/backups/backups/download"
 	"databasus-backend/internal/features/backups/backups/usecases"
 	backups_config "databasus-backend/internal/features/backups/config"
 	"databasus-backend/internal/features/databases"
 	encryption_secrets "databasus-backend/internal/features/encryption/secrets"
 	"databasus-backend/internal/features/notifiers"
 	"databasus-backend/internal/features/storages"
+	task_cancellation "databasus-backend/internal/features/tasks/cancellation"
 	workspaces_services "databasus-backend/internal/features/workspaces/services"
 	"databasus-backend/internal/util/encryption"
 	"databasus-backend/internal/util/logger"
 )
 
-var backupRepository = &BackupRepository{}
+var backupRepository = &backups_core.BackupRepository{}
 
-var backupContextManager = NewBackupContextManager()
+var taskCancelManager = task_cancellation.GetTaskCancelManager()
 
 var backupService = &BackupService{
 	databases.GetDatabaseService(),
@@ -30,32 +35,17 @@ var backupService = &BackupService{
 	encryption.GetFieldEncryptor(),
 	usecases.GetCreateBackupUsecase(),
 	logger.GetLogger(),
-	[]BackupRemoveListener{},
+	[]backups_core.BackupRemoveListener{},
 	workspaces_services.GetWorkspaceService(),
 	audit_logs.GetAuditLogService(),
-	backupContextManager,
-}
-
-var backupBackgroundService = &BackupBackgroundService{
-	backupService,
-	backupRepository,
-	backups_config.GetBackupConfigService(),
-	storages.GetStorageService(),
-	time.Now().UTC(),
-	logger.GetLogger(),
+	taskCancelManager,
+	backups_download.GetDownloadTokenService(),
+	backuping.GetBackupsScheduler(),
+	backuping.GetBackupCleaner(),
 }
 
 var backupController = &BackupController{
-	backupService,
-}
-
-func SetupDependencies() {
-	backups_config.
-		GetBackupConfigService().
-		SetDatabaseStorageChangeListener(backupService)
-
-	databases.GetDatabaseService().AddDbRemoveListener(backupService)
-	databases.GetDatabaseService().AddDbCopyListener(backups_config.GetBackupConfigService())
+	backupService: backupService,
 }
 
 func GetBackupService() *BackupService {
@@ -66,6 +56,26 @@ func GetBackupController() *BackupController {
 	return backupController
 }
 
-func GetBackupBackgroundService() *BackupBackgroundService {
-	return backupBackgroundService
+var (
+	setupOnce sync.Once
+	isSetup   atomic.Bool
+)
+
+func SetupDependencies() {
+	wasAlreadySetup := isSetup.Load()
+
+	setupOnce.Do(func() {
+		backups_config.
+			GetBackupConfigService().
+			SetDatabaseStorageChangeListener(backupService)
+
+		databases.GetDatabaseService().AddDbRemoveListener(backupService)
+		databases.GetDatabaseService().AddDbCopyListener(backups_config.GetBackupConfigService())
+
+		isSetup.Store(true)
+	})
+
+	if wasAlreadySetup {
+		logger.GetLogger().Warn("SetupDependencies called multiple times, ignoring subsequent call")
+	}
 }

backend/internal/features/backups/backups/download/background.go

@@ -0,0 +1,50 @@
+package backups_download
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"sync"
+	"sync/atomic"
+	"time"
+)
+
+type DownloadTokenBackgroundService struct {
+	downloadTokenService *DownloadTokenService
+	logger               *slog.Logger
+
+	runOnce sync.Once
+	hasRun  atomic.Bool
+}
+
+func (s *DownloadTokenBackgroundService) Run(ctx context.Context) {
+	wasAlreadyRun := s.hasRun.Load()
+
+	s.runOnce.Do(func() {
+		s.hasRun.Store(true)
+
+		s.logger.Info("Starting download token cleanup background service")
+
+		if ctx.Err() != nil {
+			return
+		}
+
+		ticker := time.NewTicker(1 * time.Minute)
+		defer ticker.Stop()
+
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case <-ticker.C:
+				if err := s.downloadTokenService.CleanExpiredTokens(); err != nil {
+					s.logger.Error("Failed to clean expired download tokens", "error", err)
+				}
+			}
+		}
+	})
+
+	if wasAlreadyRun {
+		panic(fmt.Sprintf("%T.Run() called multiple times", s))
+	}
+}

backend/internal/features/backups/backups/download/bandwidth.go

@@ -0,0 +1,81 @@
+package backups_download
+
+import (
+	"fmt"
+	"sync"
+
+	"github.com/google/uuid"
+)
+
+type BandwidthManager struct {
+	mu                        sync.RWMutex
+	activeDownloads           map[uuid.UUID]*activeDownload
+	maxTotalBytesPerSecond    int64
+	bytesPerSecondPerDownload int64
+}
+
+type activeDownload struct {
+	userID      uuid.UUID
+	rateLimiter *RateLimiter
+}
+
+func NewBandwidthManager(throughputMBs int) *BandwidthManager {
+	// Use 75% of total throughput
+	maxBytes := int64(throughputMBs) * 1024 * 1024 * 75 / 100
+
+	return &BandwidthManager{
+		activeDownloads:           make(map[uuid.UUID]*activeDownload),
+		maxTotalBytesPerSecond:    maxBytes,
+		bytesPerSecondPerDownload: maxBytes,
+	}
+}
+
+func (bm *BandwidthManager) RegisterDownload(userID uuid.UUID) (*RateLimiter, error) {
+	bm.mu.Lock()
+	defer bm.mu.Unlock()
+
+	if _, exists := bm.activeDownloads[userID]; exists {
+		return nil, fmt.Errorf("download already registered for user %s", userID)
+	}
+
+	rateLimiter := NewRateLimiter(bm.bytesPerSecondPerDownload)
+
+	bm.activeDownloads[userID] = &activeDownload{
+		userID:      userID,
+		rateLimiter: rateLimiter,
+	}
+
+	bm.recalculateRates()
+
+	return rateLimiter, nil
+}
+
+func (bm *BandwidthManager) UnregisterDownload(userID uuid.UUID) {
+	bm.mu.Lock()
+	defer bm.mu.Unlock()
+
+	delete(bm.activeDownloads, userID)
+	bm.recalculateRates()
+}
+
+func (bm *BandwidthManager) GetActiveDownloadCount() int {
+	bm.mu.RLock()
+	defer bm.mu.RUnlock()
+	return len(bm.activeDownloads)
+}
+
+func (bm *BandwidthManager) recalculateRates() {
+	activeCount := len(bm.activeDownloads)
+
+	if activeCount == 0 {
+		bm.bytesPerSecondPerDownload = bm.maxTotalBytesPerSecond
+		return
+	}
+
+	newRate := bm.maxTotalBytesPerSecond / int64(activeCount)
+	bm.bytesPerSecondPerDownload = newRate
+
+	for _, download := range bm.activeDownloads {
+		download.rateLimiter.UpdateRate(newRate)
+	}
+}

backend/internal/features/backups/backups/download/bandwidth_test.go

@@ -0,0 +1,150 @@
+package backups_download
+
+import (
+	"testing"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_BandwidthManager_RegisterSingleDownload(t *testing.T) {
+	throughputMBs := 100
+	manager := NewBandwidthManager(throughputMBs)
+
+	expectedBytesPerSec := int64(100 * 1024 * 1024 * 75 / 100)
+	assert.Equal(t, expectedBytesPerSec, manager.maxTotalBytesPerSecond)
+	assert.Equal(t, expectedBytesPerSec, manager.bytesPerSecondPerDownload)
+
+	userID := uuid.New()
+	rateLimiter, err := manager.RegisterDownload(userID)
+	assert.NoError(t, err)
+	assert.NotNil(t, rateLimiter)
+
+	assert.Equal(t, 1, manager.GetActiveDownloadCount())
+	assert.Equal(t, expectedBytesPerSec, manager.bytesPerSecondPerDownload)
+	assert.Equal(t, expectedBytesPerSec, rateLimiter.bytesPerSecond)
+}
+
+func Test_BandwidthManager_RegisterMultipleDownloads_BandwidthShared(t *testing.T) {
+	throughputMBs := 100
+	manager := NewBandwidthManager(throughputMBs)
+
+	maxBytes := int64(100 * 1024 * 1024 * 75 / 100)
+
+	user1 := uuid.New()
+	rateLimiter1, err := manager.RegisterDownload(user1)
+	assert.NoError(t, err)
+	assert.Equal(t, maxBytes, rateLimiter1.bytesPerSecond)
+
+	user2 := uuid.New()
+	rateLimiter2, err := manager.RegisterDownload(user2)
+	assert.NoError(t, err)
+
+	expectedPerDownload := maxBytes / 2
+	assert.Equal(t, expectedPerDownload, manager.bytesPerSecondPerDownload)
+	assert.Equal(t, expectedPerDownload, rateLimiter1.bytesPerSecond)
+	assert.Equal(t, expectedPerDownload, rateLimiter2.bytesPerSecond)
+	assert.Equal(t, expectedPerDownload, rateLimiter2.bytesPerSecond)
+
+	user3 := uuid.New()
+	rateLimiter3, err := manager.RegisterDownload(user3)
+	assert.NoError(t, err)
+
+	expectedPerDownload = maxBytes / 3
+	assert.Equal(t, expectedPerDownload, manager.bytesPerSecondPerDownload)
+	assert.Equal(t, expectedPerDownload, rateLimiter1.bytesPerSecond)
+	assert.Equal(t, expectedPerDownload, rateLimiter2.bytesPerSecond)
+	assert.Equal(t, expectedPerDownload, rateLimiter3.bytesPerSecond)
+	assert.Equal(t, 3, manager.GetActiveDownloadCount())
+}
+
+func Test_BandwidthManager_UnregisterDownload_BandwidthRebalanced(t *testing.T) {
+	throughputMBs := 100
+	manager := NewBandwidthManager(throughputMBs)
+
+	maxBytes := int64(100 * 1024 * 1024 * 75 / 100)
+
+	user1 := uuid.New()
+	rateLimiter1, _ := manager.RegisterDownload(user1)
+
+	user2 := uuid.New()
+	_, _ = manager.RegisterDownload(user2)
+
+	user3 := uuid.New()
+	rateLimiter3, _ := manager.RegisterDownload(user3)
+
+	assert.Equal(t, 3, manager.GetActiveDownloadCount())
+	expectedPerDownload := maxBytes / 3
+	assert.Equal(t, expectedPerDownload, rateLimiter1.bytesPerSecond)
+
+	manager.UnregisterDownload(user2)
+
+	assert.Equal(t, 2, manager.GetActiveDownloadCount())
+	expectedPerDownload = maxBytes / 2
+	assert.Equal(t, expectedPerDownload, manager.bytesPerSecondPerDownload)
+	assert.Equal(t, expectedPerDownload, rateLimiter1.bytesPerSecond)
+	assert.Equal(t, expectedPerDownload, rateLimiter3.bytesPerSecond)
+
+	manager.UnregisterDownload(user1)
+
+	assert.Equal(t, 1, manager.GetActiveDownloadCount())
+	assert.Equal(t, maxBytes, manager.bytesPerSecondPerDownload)
+	assert.Equal(t, maxBytes, rateLimiter3.bytesPerSecond)
+
+	manager.UnregisterDownload(user3)
+	assert.Equal(t, 0, manager.GetActiveDownloadCount())
+	assert.Equal(t, maxBytes, manager.bytesPerSecondPerDownload)
+}
+
+func Test_BandwidthManager_RegisterDuplicateUser_ReturnsError(t *testing.T) {
+	manager := NewBandwidthManager(100)
+
+	userID := uuid.New()
+	_, err := manager.RegisterDownload(userID)
+	assert.NoError(t, err)
+
+	_, err = manager.RegisterDownload(userID)
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "download already registered")
+}
+
+func Test_RateLimiter_TokenBucketBasic(t *testing.T) {
+	bytesPerSec := int64(1024 * 1024)
+	limiter := NewRateLimiter(bytesPerSec)
+
+	assert.Equal(t, bytesPerSec, limiter.bytesPerSecond)
+	assert.Equal(t, bytesPerSec*2, limiter.bucketSize)
+
+	start := time.Now()
+	limiter.Wait(512 * 1024)
+	elapsed := time.Since(start)
+
+	assert.Less(t, elapsed, 100*time.Millisecond)
+}
+
+func Test_RateLimiter_UpdateRate(t *testing.T) {
+	limiter := NewRateLimiter(1024 * 1024)
+
+	assert.Equal(t, int64(1024*1024), limiter.bytesPerSecond)
+
+	newRate := int64(2 * 1024 * 1024)
+	limiter.UpdateRate(newRate)
+
+	assert.Equal(t, newRate, limiter.bytesPerSecond)
+	assert.Equal(t, newRate*2, limiter.bucketSize)
+}
+
+func Test_RateLimiter_ThrottlesCorrectly(t *testing.T) {
+	bytesPerSec := int64(1024 * 1024)
+	limiter := NewRateLimiter(bytesPerSec)
+
+	limiter.availableTokens = 0
+
+	start := time.Now()
+	limiter.Wait(bytesPerSec / 2)
+	elapsed := time.Since(start)
+
+	assert.GreaterOrEqual(t, elapsed, 400*time.Millisecond)
+	assert.LessOrEqual(t, elapsed, 700*time.Millisecond)
+}

backend/internal/features/backups/backups/download/di.go

@@ -0,0 +1,53 @@
+package backups_download
+
+import (
+	"sync"
+	"sync/atomic"
+
+	"databasus-backend/internal/config"
+	cache_utils "databasus-backend/internal/util/cache"
+	"databasus-backend/internal/util/logger"
+)
+
+var downloadTokenRepository = &DownloadTokenRepository{}
+
+var downloadTracker = NewDownloadTracker(cache_utils.GetValkeyClient())
+
+var bandwidthManager *BandwidthManager
+var downloadTokenService *DownloadTokenService
+var downloadTokenBackgroundService *DownloadTokenBackgroundService
+
+func init() {
+	env := config.GetEnv()
+	throughputMBs := env.NodeNetworkThroughputMBs
+	if throughputMBs == 0 {
+		throughputMBs = 125
+	}
+	bandwidthManager = NewBandwidthManager(throughputMBs)
+
+	downloadTokenService = &DownloadTokenService{
+		downloadTokenRepository,
+		logger.GetLogger(),
+		downloadTracker,
+		bandwidthManager,
+	}
+
+	downloadTokenBackgroundService = &DownloadTokenBackgroundService{
+		downloadTokenService: downloadTokenService,
+		logger:               logger.GetLogger(),
+		runOnce:              sync.Once{},
+		hasRun:               atomic.Bool{},
+	}
+}
+
+func GetDownloadTokenService() *DownloadTokenService {
+	return downloadTokenService
+}
+
+func GetDownloadTokenBackgroundService() *DownloadTokenBackgroundService {
+	return downloadTokenBackgroundService
+}
+
+func GetBandwidthManager() *BandwidthManager {
+	return bandwidthManager
+}

backend/internal/features/backups/backups/download/dto.go

@@ -0,0 +1,9 @@
+package backups_download
+
+import "github.com/google/uuid"
+
+type GenerateDownloadTokenResponse struct {
+	Token    string    `json:"token"`
+	Filename string    `json:"filename"`
+	BackupID uuid.UUID `json:"backupId"`
+}

backend/internal/features/backups/backups/download/model.go

@@ -0,0 +1,21 @@
+package backups_download
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+)
+
+type DownloadToken struct {
+	ID        uuid.UUID `json:"id"        gorm:"column:id;primaryKey"`
+	Token     string    `json:"token"     gorm:"column:token;uniqueIndex;not null"`
+	BackupID  uuid.UUID `json:"backupId"  gorm:"column:backup_id;not null"`
+	UserID    uuid.UUID `json:"userId"    gorm:"column:user_id;not null"`
+	ExpiresAt time.Time `json:"expiresAt" gorm:"column:expires_at;not null"`
+	Used      bool      `json:"used"      gorm:"column:used;not null;default:false"`
+	CreatedAt time.Time `json:"createdAt" gorm:"column:created_at;not null"`
+}
+
+func (DownloadToken) TableName() string {
+	return "download_tokens"
+}

backend/internal/features/backups/backups/download/rate_limiter.go

@@ -0,0 +1,101 @@
+package backups_download
+
+import (
+	"io"
+	"sync"
+	"time"
+)
+
+type RateLimiter struct {
+	mu              sync.Mutex
+	bytesPerSecond  int64
+	bucketSize      int64
+	availableTokens float64
+	lastRefill      time.Time
+}
+
+func NewRateLimiter(bytesPerSecond int64) *RateLimiter {
+	if bytesPerSecond <= 0 {
+		bytesPerSecond = 1024 * 1024 * 100
+	}
+
+	return &RateLimiter{
+		bytesPerSecond:  bytesPerSecond,
+		bucketSize:      bytesPerSecond * 2,
+		availableTokens: float64(bytesPerSecond * 2),
+		lastRefill:      time.Now().UTC(),
+	}
+}
+
+func (rl *RateLimiter) UpdateRate(bytesPerSecond int64) {
+	rl.mu.Lock()
+	defer rl.mu.Unlock()
+
+	if bytesPerSecond <= 0 {
+		bytesPerSecond = 1024 * 1024 * 100
+	}
+
+	rl.bytesPerSecond = bytesPerSecond
+	rl.bucketSize = bytesPerSecond * 2
+
+	if rl.availableTokens > float64(rl.bucketSize) {
+		rl.availableTokens = float64(rl.bucketSize)
+	}
+}
+
+func (rl *RateLimiter) Wait(bytes int64) {
+	rl.mu.Lock()
+	defer rl.mu.Unlock()
+
+	for {
+		now := time.Now().UTC()
+		elapsed := now.Sub(rl.lastRefill).Seconds()
+
+		tokensToAdd := elapsed * float64(rl.bytesPerSecond)
+		rl.availableTokens += tokensToAdd
+		if rl.availableTokens > float64(rl.bucketSize) {
+			rl.availableTokens = float64(rl.bucketSize)
+		}
+		rl.lastRefill = now
+
+		if rl.availableTokens >= float64(bytes) {
+			rl.availableTokens -= float64(bytes)
+			return
+		}
+
+		tokensNeeded := float64(bytes) - rl.availableTokens
+		waitTime := time.Duration(tokensNeeded/float64(rl.bytesPerSecond)*1000) * time.Millisecond
+
+		if waitTime < time.Millisecond {
+			waitTime = time.Millisecond
+		}
+
+		rl.mu.Unlock()
+		time.Sleep(waitTime)
+		rl.mu.Lock()
+	}
+}
+
+type RateLimitedReader struct {
+	reader      io.ReadCloser
+	rateLimiter *RateLimiter
+}
+
+func NewRateLimitedReader(reader io.ReadCloser, limiter *RateLimiter) *RateLimitedReader {
+	return &RateLimitedReader{
+		reader:      reader,
+		rateLimiter: limiter,
+	}
+}
+
+func (r *RateLimitedReader) Read(p []byte) (n int, err error) {
+	n, err = r.reader.Read(p)
+	if n > 0 {
+		r.rateLimiter.Wait(int64(n))
+	}
+	return n, err
+}
+
+func (r *RateLimitedReader) Close() error {
+	return r.reader.Close()
+}

backend/internal/features/backups/backups/download/repository.go

@@ -0,0 +1,60 @@
+package backups_download
+
+import (
+	"crypto/rand"
+	"databasus-backend/internal/storage"
+	"encoding/base64"
+	"time"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+)
+
+type DownloadTokenRepository struct{}
+
+func (r *DownloadTokenRepository) Create(token *DownloadToken) error {
+	if token.ID == uuid.Nil {
+		token.ID = uuid.New()
+	}
+	if token.CreatedAt.IsZero() {
+		token.CreatedAt = time.Now().UTC()
+	}
+	return storage.GetDb().Create(token).Error
+}
+
+func (r *DownloadTokenRepository) FindByToken(token string) (*DownloadToken, error) {
+	var downloadToken DownloadToken
+
+	err := storage.GetDb().
+		Where("token = ?", token).
+		First(&downloadToken).Error
+
+	if err != nil {
+		if err == gorm.ErrRecordNotFound {
+			return nil, nil
+		}
+		return nil, err
+	}
+
+	return &downloadToken, nil
+}
+
+func (r *DownloadTokenRepository) Update(token *DownloadToken) error {
+	return storage.GetDb().Save(token).Error
+}
+
+func (r *DownloadTokenRepository) DeleteExpired(before time.Time) error {
+	return storage.GetDb().
+		Where("expires_at < ?", before).
+		Delete(&DownloadToken{}).Error
+}
+
+func GenerateSecureToken() string {
+	b := make([]byte, 32)
+
+	if _, err := rand.Read(b); err != nil {
+		panic("failed to generate secure random token: " + err.Error())
+	}
+
+	return base64.URLEncoding.EncodeToString(b)
+}

backend/internal/features/backups/backups/download/service.go

@@ -0,0 +1,105 @@
+package backups_download
+
+import (
+	"errors"
+	"log/slog"
+	"time"
+
+	"github.com/google/uuid"
+)
+
+type DownloadTokenService struct {
+	repository       *DownloadTokenRepository
+	logger           *slog.Logger
+	downloadTracker  *DownloadTracker
+	bandwidthManager *BandwidthManager
+}
+
+func (s *DownloadTokenService) Generate(backupID, userID uuid.UUID) (string, error) {
+	if s.downloadTracker.IsDownloadInProgress(userID) {
+		return "", ErrDownloadAlreadyInProgress
+	}
+
+	token := GenerateSecureToken()
+
+	downloadToken := &DownloadToken{
+		Token:     token,
+		BackupID:  backupID,
+		UserID:    userID,
+		ExpiresAt: time.Now().UTC().Add(5 * time.Minute),
+		Used:      false,
+	}
+
+	if err := s.repository.Create(downloadToken); err != nil {
+		return "", err
+	}
+
+	s.logger.Info("Generated download token", "backupId", backupID, "userId", userID)
+	return token, nil
+}
+
+func (s *DownloadTokenService) ValidateAndConsume(
+	token string,
+) (*DownloadToken, *RateLimiter, error) {
+	dt, err := s.repository.FindByToken(token)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	if dt == nil {
+		return nil, nil, errors.New("invalid token")
+	}
+
+	if dt.Used {
+		return nil, nil, errors.New("token already used")
+	}
+
+	if time.Now().UTC().After(dt.ExpiresAt) {
+		return nil, nil, errors.New("token expired")
+	}
+
+	if err := s.downloadTracker.AcquireDownloadLock(dt.UserID); err != nil {
+		return nil, nil, err
+	}
+
+	rateLimiter, err := s.bandwidthManager.RegisterDownload(dt.UserID)
+	if err != nil {
+		s.downloadTracker.ReleaseDownloadLock(dt.UserID)
+		return nil, nil, err
+	}
+
+	dt.Used = true
+	if err := s.repository.Update(dt); err != nil {
+		s.logger.Error("Failed to mark token as used", "error", err)
+	}
+
+	s.logger.Info("Token validated and consumed", "backupId", dt.BackupID, "userId", dt.UserID)
+	return dt, rateLimiter, nil
+}
+
+func (s *DownloadTokenService) RefreshDownloadLock(userID uuid.UUID) {
+	s.downloadTracker.RefreshDownloadLock(userID)
+}
+
+func (s *DownloadTokenService) ReleaseDownloadLock(userID uuid.UUID) {
+	s.downloadTracker.ReleaseDownloadLock(userID)
+	s.logger.Info("Released download lock", "userId", userID)
+}
+
+func (s *DownloadTokenService) IsDownloadInProgress(userID uuid.UUID) bool {
+	return s.downloadTracker.IsDownloadInProgress(userID)
+}
+
+func (s *DownloadTokenService) UnregisterDownload(userID uuid.UUID) {
+	s.bandwidthManager.UnregisterDownload(userID)
+	s.logger.Info("Unregistered from bandwidth manager", "userId", userID)
+}
+
+func (s *DownloadTokenService) CleanExpiredTokens() error {
+	now := time.Now().UTC()
+	if err := s.repository.DeleteExpired(now); err != nil {
+		return err
+	}
+	s.logger.Debug("Cleaned expired download tokens")
+	return nil
+}

backend/internal/features/backups/backups/download/tracking.go

@@ -0,0 +1,66 @@
+package backups_download
+
+import (
+	cache_utils "databasus-backend/internal/util/cache"
+	"errors"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/valkey-io/valkey-go"
+)
+
+const (
+	downloadLockPrefix     = "backup_download_lock:"
+	downloadLockTTL        = 5 * time.Second
+	downloadLockValue      = "1"
+	downloadHeartbeatDelay = 3 * time.Second
+)
+
+var (
+	ErrDownloadAlreadyInProgress = errors.New("download already in progress for this user")
+)
+
+type DownloadTracker struct {
+	cache *cache_utils.CacheUtil[string]
+}
+
+func NewDownloadTracker(client valkey.Client) *DownloadTracker {
+	return &DownloadTracker{
+		cache: cache_utils.NewCacheUtil[string](client, downloadLockPrefix),
+	}
+}
+
+func (t *DownloadTracker) AcquireDownloadLock(userID uuid.UUID) error {
+	key := userID.String()
+
+	existingLock := t.cache.Get(key)
+	if existingLock != nil {
+		return ErrDownloadAlreadyInProgress
+	}
+
+	value := downloadLockValue
+	t.cache.Set(key, &value)
+
+	return nil
+}
+
+func (t *DownloadTracker) RefreshDownloadLock(userID uuid.UUID) {
+	key := userID.String()
+	value := downloadLockValue
+	t.cache.Set(key, &value)
+}
+
+func (t *DownloadTracker) ReleaseDownloadLock(userID uuid.UUID) {
+	key := userID.String()
+	t.cache.Invalidate(key)
+}
+
+func (t *DownloadTracker) IsDownloadInProgress(userID uuid.UUID) bool {
+	key := userID.String()
+	existingLock := t.cache.Get(key)
+	return existingLock != nil
+}
+
+func GetDownloadHeartbeatInterval() time.Duration {
+	return downloadHeartbeatDelay
+}

backend/internal/features/backups/backups/dto.go

@@ -1,6 +1,7 @@
 package backups
 
 import (
+	backups_core "databasus-backend/internal/features/backups/backups/core"
 	"databasus-backend/internal/features/backups/backups/encryption"
 	"io"
 )
@@ -12,17 +13,17 @@ type GetBackupsRequest struct {
 }
 
 type GetBackupsResponse struct {
-	Backups []*Backup `json:"backups"`
-	Total   int64     `json:"total"`
-	Limit   int       `json:"limit"`
-	Offset  int       `json:"offset"`
+	Backups []*backups_core.Backup `json:"backups"`
+	Total   int64                  `json:"total"`
+	Limit   int                    `json:"limit"`
+	Offset  int                    `json:"offset"`
 }
 
-type decryptionReaderCloser struct {
+type DecryptionReaderCloser struct {
 	*encryption.DecryptionReader
-	baseReader io.ReadCloser
+	BaseReader io.ReadCloser
 }
 
-func (r *decryptionReaderCloser) Close() error {
-	return r.baseReader.Close()
+func (r *DecryptionReaderCloser) Close() error {
+	return r.BaseReader.Close()
 }

backend/internal/features/backups/backups/mocks.go

@@ -1,19 +0,0 @@
-package backups
-
-import (
-	"databasus-backend/internal/features/notifiers"
-
-	"github.com/stretchr/testify/mock"
-)
-
-type MockNotificationSender struct {
-	mock.Mock
-}
-
-func (m *MockNotificationSender) SendNotification(
-	notifier *notifiers.Notifier,
-	title string,
-	message string,
-) {
-	m.Called(notifier, title, message)
-}

backend/internal/features/backups/backups/service.go

@@ -1,23 +1,23 @@
 package backups
 
 import (
-	"context"
 	"encoding/base64"
 	"errors"
 	"fmt"
 	"io"
 	"log/slog"
-	"slices"
-	"strings"
-	"time"
 
 	audit_logs "databasus-backend/internal/features/audit_logs"
+	"databasus-backend/internal/features/backups/backups/backuping"
+	backups_core "databasus-backend/internal/features/backups/backups/core"
+	backups_download "databasus-backend/internal/features/backups/backups/download"
 	"databasus-backend/internal/features/backups/backups/encryption"
 	backups_config "databasus-backend/internal/features/backups/config"
 	"databasus-backend/internal/features/databases"
 	encryption_secrets "databasus-backend/internal/features/encryption/secrets"
 	"databasus-backend/internal/features/notifiers"
 	"databasus-backend/internal/features/storages"
+	task_cancellation "databasus-backend/internal/features/tasks/cancellation"
 	users_models "databasus-backend/internal/features/users/models"
 	workspaces_services "databasus-backend/internal/features/workspaces/services"
 	util_encryption "databasus-backend/internal/util/encryption"
@@ -28,25 +28,28 @@ import (
 type BackupService struct {
 	databaseService     *databases.DatabaseService
 	storageService      *storages.StorageService
-	backupRepository    *BackupRepository
+	backupRepository    *backups_core.BackupRepository
 	notifierService     *notifiers.NotifierService
-	notificationSender  NotificationSender
+	notificationSender  backups_core.NotificationSender
 	backupConfigService *backups_config.BackupConfigService
 	secretKeyService    *encryption_secrets.SecretKeyService
 	fieldEncryptor      util_encryption.FieldEncryptor
 
-	createBackupUseCase CreateBackupUsecase
+	createBackupUseCase backups_core.CreateBackupUsecase
 
 	logger *slog.Logger
 
-	backupRemoveListeners []BackupRemoveListener
+	backupRemoveListeners []backups_core.BackupRemoveListener
 
-	workspaceService     *workspaces_services.WorkspaceService
-	auditLogService      *audit_logs.AuditLogService
-	backupContextManager *BackupContextManager
+	workspaceService       *workspaces_services.WorkspaceService
+	auditLogService        *audit_logs.AuditLogService
+	taskCancelManager      *task_cancellation.TaskCancelManager
+	downloadTokenService   *backups_download.DownloadTokenService
+	backupSchedulerService *backuping.BackupsScheduler
+	backupCleaner          *backuping.BackupCleaner
 }
 
-func (s *BackupService) AddBackupRemoveListener(listener BackupRemoveListener) {
+func (s *BackupService) AddBackupRemoveListener(listener backups_core.BackupRemoveListener) {
 	s.backupRemoveListeners = append(s.backupRemoveListeners, listener)
 }
 
@@ -89,7 +92,7 @@ func (s *BackupService) MakeBackupWithAuth(
 		return errors.New("insufficient permissions to create backup for this database")
 	}
 
-	go s.MakeBackup(databaseID, true)
+	s.backupSchedulerService.StartBackup(databaseID, true)
 
 	s.auditLogService.WriteAuditLog(
 		fmt.Sprintf("Backup manually initiated for database: %s", database.Name),
@@ -173,7 +176,7 @@ func (s *BackupService) DeleteBackup(
 		return errors.New("insufficient permissions to delete backup for this database")
 	}
 
-	if backup.Status == BackupStatusInProgress {
+	if backup.Status == backups_core.BackupStatusInProgress {
 		return errors.New("backup is in progress")
 	}
 
@@ -187,263 +190,10 @@ func (s *BackupService) DeleteBackup(
 		database.WorkspaceID,
 	)
 
-	return s.deleteBackup(backup)
+	return s.backupCleaner.DeleteBackup(backup)
 }
 
-func (s *BackupService) MakeBackup(databaseID uuid.UUID, isLastTry bool) {
-	database, err := s.databaseService.GetDatabaseByID(databaseID)
-	if err != nil {
-		s.logger.Error("Failed to get database by ID", "error", err)
-		return
-	}
-
-	lastBackup, err := s.backupRepository.FindLastByDatabaseID(databaseID)
-	if err != nil {
-		s.logger.Error("Failed to find last backup by database ID", "error", err)
-		return
-	}
-
-	if lastBackup != nil && lastBackup.Status == BackupStatusInProgress {
-		s.logger.Error("Backup is in progress")
-		return
-	}
-
-	backupConfig, err := s.backupConfigService.GetBackupConfigByDbId(databaseID)
-	if err != nil {
-		s.logger.Error("Failed to get backup config by database ID", "error", err)
-		return
-	}
-
-	if backupConfig.StorageID == nil {
-		s.logger.Error("Backup config storage ID is not defined")
-		return
-	}
-
-	storage, err := s.storageService.GetStorageByID(*backupConfig.StorageID)
-	if err != nil {
-		s.logger.Error("Failed to get storage by ID", "error", err)
-		return
-	}
-
-	backup := &Backup{
-		DatabaseID: databaseID,
-		StorageID:  storage.ID,
-
-		Status: BackupStatusInProgress,
-
-		BackupSizeMb: 0,
-
-		CreatedAt: time.Now().UTC(),
-	}
-
-	if err := s.backupRepository.Save(backup); err != nil {
-		s.logger.Error("Failed to save backup", "error", err)
-		return
-	}
-
-	start := time.Now().UTC()
-
-	backupProgressListener := func(
-		completedMBs float64,
-	) {
-		backup.BackupSizeMb = completedMBs
-		backup.BackupDurationMs = time.Since(start).Milliseconds()
-
-		if err := s.backupRepository.Save(backup); err != nil {
-			s.logger.Error("Failed to update backup progress", "error", err)
-		}
-	}
-
-	ctx, cancel := context.WithCancel(context.Background())
-	s.backupContextManager.RegisterBackup(backup.ID, cancel)
-	defer s.backupContextManager.UnregisterBackup(backup.ID)
-
-	backupMetadata, err := s.createBackupUseCase.Execute(
-		ctx,
-		backup.ID,
-		backupConfig,
-		database,
-		storage,
-		backupProgressListener,
-	)
-	if err != nil {
-		errMsg := err.Error()
-
-		// Check if backup was cancelled (not due to shutdown)
-		isCancelled := strings.Contains(errMsg, "backup cancelled") ||
-			strings.Contains(errMsg, "context canceled") ||
-			errors.Is(err, context.Canceled)
-		isShutdown := strings.Contains(errMsg, "shutdown")
-
-		if isCancelled && !isShutdown {
-			backup.Status = BackupStatusCanceled
-			backup.BackupDurationMs = time.Since(start).Milliseconds()
-			backup.BackupSizeMb = 0
-
-			if err := s.backupRepository.Save(backup); err != nil {
-				s.logger.Error("Failed to save cancelled backup", "error", err)
-			}
-
-			// Delete partial backup from storage
-			storage, storageErr := s.storageService.GetStorageByID(backup.StorageID)
-			if storageErr == nil {
-				if deleteErr := storage.DeleteFile(s.fieldEncryptor, backup.ID); deleteErr != nil {
-					s.logger.Error(
-						"Failed to delete partial backup file",
-						"backupId",
-						backup.ID,
-						"error",
-						deleteErr,
-					)
-				}
-			}
-
-			return
-		}
-
-		backup.FailMessage = &errMsg
-		backup.Status = BackupStatusFailed
-		backup.BackupDurationMs = time.Since(start).Milliseconds()
-		backup.BackupSizeMb = 0
-
-		if updateErr := s.databaseService.SetBackupError(databaseID, errMsg); updateErr != nil {
-			s.logger.Error(
-				"Failed to update database last backup time",
-				"databaseId",
-				databaseID,
-				"error",
-				updateErr,
-			)
-		}
-
-		if err := s.backupRepository.Save(backup); err != nil {
-			s.logger.Error("Failed to save backup", "error", err)
-		}
-
-		s.SendBackupNotification(
-			backupConfig,
-			backup,
-			backups_config.NotificationBackupFailed,
-			&errMsg,
-		)
-
-		return
-	}
-
-	backup.Status = BackupStatusCompleted
-	backup.BackupDurationMs = time.Since(start).Milliseconds()
-
-	// Update backup with encryption metadata if provided
-	if backupMetadata != nil {
-		backup.EncryptionSalt = backupMetadata.EncryptionSalt
-		backup.EncryptionIV = backupMetadata.EncryptionIV
-		backup.Encryption = backupMetadata.Encryption
-	}
-
-	if err := s.backupRepository.Save(backup); err != nil {
-		s.logger.Error("Failed to save backup", "error", err)
-		return
-	}
-
-	// Update database last backup time
-	now := time.Now().UTC()
-	if updateErr := s.databaseService.SetLastBackupTime(databaseID, now); updateErr != nil {
-		s.logger.Error(
-			"Failed to update database last backup time",
-			"databaseId",
-			databaseID,
-			"error",
-			updateErr,
-		)
-	}
-
-	if backup.Status != BackupStatusCompleted && !isLastTry {
-		return
-	}
-
-	s.SendBackupNotification(
-		backupConfig,
-		backup,
-		backups_config.NotificationBackupSuccess,
-		nil,
-	)
-}
-
-func (s *BackupService) SendBackupNotification(
-	backupConfig *backups_config.BackupConfig,
-	backup *Backup,
-	notificationType backups_config.BackupNotificationType,
-	errorMessage *string,
-) {
-	database, err := s.databaseService.GetDatabaseByID(backupConfig.DatabaseID)
-	if err != nil {
-		return
-	}
-
-	workspace, err := s.workspaceService.GetWorkspaceByID(*database.WorkspaceID)
-	if err != nil {
-		return
-	}
-
-	for _, notifier := range database.Notifiers {
-		if !slices.Contains(
-			backupConfig.SendNotificationsOn,
-			notificationType,
-		) {
-			continue
-		}
-
-		title := ""
-		switch notificationType {
-		case backups_config.NotificationBackupFailed:
-			title = fmt.Sprintf(
-				"❌ Backup failed for database \"%s\" (workspace \"%s\")",
-				database.Name,
-				workspace.Name,
-			)
-		case backups_config.NotificationBackupSuccess:
-			title = fmt.Sprintf(
-				"✅ Backup completed for database \"%s\" (workspace \"%s\")",
-				database.Name,
-				workspace.Name,
-			)
-		}
-
-		message := ""
-		if errorMessage != nil {
-			message = *errorMessage
-		} else {
-			// Format size conditionally
-			var sizeStr string
-			if backup.BackupSizeMb < 1024 {
-				sizeStr = fmt.Sprintf("%.2f MB", backup.BackupSizeMb)
-			} else {
-				sizeGB := backup.BackupSizeMb / 1024
-				sizeStr = fmt.Sprintf("%.2f GB", sizeGB)
-			}
-
-			// Format duration as "0m 0s 0ms"
-			totalMs := backup.BackupDurationMs
-			minutes := totalMs / (1000 * 60)
-			seconds := (totalMs % (1000 * 60)) / 1000
-			durationStr := fmt.Sprintf("%dm %ds", minutes, seconds)
-
-			message = fmt.Sprintf(
-				"Backup completed successfully in %s.\nCompressed backup size: %s",
-				durationStr,
-				sizeStr,
-			)
-		}
-
-		s.notificationSender.SendNotification(
-			&notifier,
-			title,
-			message,
-		)
-	}
-}
-
-func (s *BackupService) GetBackup(backupID uuid.UUID) (*Backup, error) {
+func (s *BackupService) GetBackup(backupID uuid.UUID) (*backups_core.Backup, error) {
 	return s.backupRepository.FindByID(backupID)
 }
 
@@ -473,11 +223,11 @@ func (s *BackupService) CancelBackup(
 		return errors.New("insufficient permissions to cancel backup for this database")
 	}
 
-	if backup.Status != BackupStatusInProgress {
+	if backup.Status != backups_core.BackupStatusInProgress {
 		return errors.New("backup is not in progress")
 	}
 
-	if err := s.backupContextManager.CancelBackup(backupID); err != nil {
+	if err := s.taskCancelManager.CancelTask(backupID); err != nil {
 		return err
 	}
 
@@ -497,7 +247,7 @@ func (s *BackupService) CancelBackup(
 func (s *BackupService) GetBackupFile(
 	user *users_models.User,
 	backupID uuid.UUID,
-) (io.ReadCloser, *Backup, *databases.Database, error) {
+) (io.ReadCloser, *backups_core.Backup, *databases.Database, error) {
 	backup, err := s.backupRepository.FindByID(backupID)
 	if err != nil {
 		return nil, nil, nil, err
@@ -543,33 +293,10 @@ func (s *BackupService) GetBackupFile(
 	return reader, backup, database, nil
 }
 
-func (s *BackupService) deleteBackup(backup *Backup) error {
-	for _, listener := range s.backupRemoveListeners {
-		if err := listener.OnBeforeBackupRemove(backup); err != nil {
-			return err
-		}
-	}
-
-	storage, err := s.storageService.GetStorageByID(backup.StorageID)
-	if err != nil {
-		return err
-	}
-
-	err = storage.DeleteFile(s.fieldEncryptor, backup.ID)
-	if err != nil {
-		// we do not return error here, because sometimes clean up performed
-		// before unavailable storage removal or change - therefore we should
-		// proceed even in case of error
-		s.logger.Error("Failed to delete backup file", "error", err)
-	}
-
-	return s.backupRepository.DeleteByID(backup.ID)
-}
-
 func (s *BackupService) deleteDbBackups(databaseID uuid.UUID) error {
 	dbBackupsInProgress, err := s.backupRepository.FindByDatabaseIdAndStatus(
 		databaseID,
-		BackupStatusInProgress,
+		backups_core.BackupStatusInProgress,
 	)
 	if err != nil {
 		return err
@@ -587,7 +314,7 @@ func (s *BackupService) deleteDbBackups(databaseID uuid.UUID) error {
 	}
 
 	for _, dbBackup := range dbBackups {
-		err := s.deleteBackup(dbBackup)
+		err := s.backupCleaner.DeleteBackup(dbBackup)
 		if err != nil {
 			return err
 		}
@@ -678,8 +405,136 @@ func (s *BackupService) getBackupReader(backupID uuid.UUID) (io.ReadCloser, erro
 
 	s.logger.Info("Returning encrypted backup with decryption", "backupId", backupID)
 
-	return &decryptionReaderCloser{
-		decryptionReader,
-		fileReader,
+	return &DecryptionReaderCloser{
+		DecryptionReader: decryptionReader,
+		BaseReader:       fileReader,
 	}, nil
 }
+
+func (s *BackupService) GenerateDownloadToken(
+	user *users_models.User,
+	backupID uuid.UUID,
+) (*backups_download.GenerateDownloadTokenResponse, error) {
+	backup, err := s.backupRepository.FindByID(backupID)
+	if err != nil {
+		return nil, err
+	}
+
+	database, err := s.databaseService.GetDatabaseByID(backup.DatabaseID)
+	if err != nil {
+		return nil, err
+	}
+
+	if database.WorkspaceID == nil {
+		return nil, errors.New("cannot download backup for database without workspace")
+	}
+
+	canAccess, _, err := s.workspaceService.CanUserAccessWorkspace(*database.WorkspaceID, user)
+	if err != nil {
+		return nil, err
+	}
+	if !canAccess {
+		return nil, errors.New("insufficient permissions to download backup for this database")
+	}
+
+	token, err := s.downloadTokenService.Generate(backupID, user.ID)
+	if err != nil {
+		return nil, err
+	}
+
+	filename := s.generateBackupFilename(backup, database)
+
+	s.auditLogService.WriteAuditLog(
+		fmt.Sprintf("Download token generated for backup of database: %s", database.Name),
+		&user.ID,
+		database.WorkspaceID,
+	)
+
+	return &backups_download.GenerateDownloadTokenResponse{
+		Token:    token,
+		Filename: filename,
+		BackupID: backupID,
+	}, nil
+}
+
+func (s *BackupService) ValidateDownloadToken(
+	token string,
+) (*backups_download.DownloadToken, *backups_download.RateLimiter, error) {
+	return s.downloadTokenService.ValidateAndConsume(token)
+}
+
+func (s *BackupService) GetBackupFileWithoutAuth(
+	backupID uuid.UUID,
+) (io.ReadCloser, *backups_core.Backup, *databases.Database, error) {
+	backup, err := s.backupRepository.FindByID(backupID)
+	if err != nil {
+		return nil, nil, nil, err
+	}
+
+	database, err := s.databaseService.GetDatabaseByID(backup.DatabaseID)
+	if err != nil {
+		return nil, nil, nil, err
+	}
+
+	reader, err := s.getBackupReader(backupID)
+	if err != nil {
+		return nil, nil, nil, err
+	}
+
+	return reader, backup, database, nil
+}
+
+func (s *BackupService) WriteAuditLogForDownload(
+	userID uuid.UUID,
+	backup *backups_core.Backup,
+	database *databases.Database,
+) {
+	s.auditLogService.WriteAuditLog(
+		fmt.Sprintf(
+			"Backup file downloaded for database: %s (ID: %s)",
+			database.Name,
+			backup.ID.String(),
+		),
+		&userID,
+		database.WorkspaceID,
+	)
+}
+
+func (s *BackupService) RefreshDownloadLock(userID uuid.UUID) {
+	s.downloadTokenService.RefreshDownloadLock(userID)
+}
+
+func (s *BackupService) ReleaseDownloadLock(userID uuid.UUID) {
+	s.downloadTokenService.ReleaseDownloadLock(userID)
+}
+
+func (s *BackupService) IsDownloadInProgress(userID uuid.UUID) bool {
+	return s.downloadTokenService.IsDownloadInProgress(userID)
+}
+
+func (s *BackupService) UnregisterDownload(userID uuid.UUID) {
+	s.downloadTokenService.UnregisterDownload(userID)
+}
+
+func (s *BackupService) generateBackupFilename(
+	backup *backups_core.Backup,
+	database *databases.Database,
+) string {
+	timestamp := backup.CreatedAt.Format("2006-01-02_15-04-05")
+	safeName := sanitizeFilename(database.Name)
+	extension := s.getBackupExtension(database.Type)
+	return fmt.Sprintf("%s_backup_%s%s", safeName, timestamp, extension)
+}
+
+func (s *BackupService) getBackupExtension(dbType databases.DatabaseType) string {
+	switch dbType {
+	case databases.DatabaseTypeMysql, databases.DatabaseTypeMariadb:
+		return ".sql.zst"
+	case databases.DatabaseTypePostgres:
+		return ".dump"
+	case databases.DatabaseTypeMongodb:
+		return ".archive"
+	default:
+		return ".backup"
+	}
+}

backend/internal/features/backups/backups/service_test.go

@@ -1,203 +0,0 @@
-package backups
-
-import (
-	"context"
-	"errors"
-	"strings"
-	"testing"
-	"time"
-
-	common "databasus-backend/internal/features/backups/backups/common"
-	backups_config "databasus-backend/internal/features/backups/config"
-	"databasus-backend/internal/features/databases"
-	encryption_secrets "databasus-backend/internal/features/encryption/secrets"
-	"databasus-backend/internal/features/notifiers"
-	"databasus-backend/internal/features/storages"
-	users_enums "databasus-backend/internal/features/users/enums"
-	users_testing "databasus-backend/internal/features/users/testing"
-	workspaces_services "databasus-backend/internal/features/workspaces/services"
-	workspaces_testing "databasus-backend/internal/features/workspaces/testing"
-	"databasus-backend/internal/util/encryption"
-	"databasus-backend/internal/util/logger"
-
-	"github.com/google/uuid"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/mock"
-)
-
-func Test_BackupExecuted_NotificationSent(t *testing.T) {
-	user := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
-	router := CreateTestRouter()
-	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", user, router)
-	storage := storages.CreateTestStorage(workspace.ID)
-	notifier := notifiers.CreateTestNotifier(workspace.ID)
-	database := databases.CreateTestDatabase(workspace.ID, storage, notifier)
-	backups_config.EnableBackupsForTestDatabase(database.ID, storage)
-
-	defer func() {
-		// cleanup backups first
-		backups, _ := backupRepository.FindByDatabaseID(database.ID)
-		for _, backup := range backups {
-			backupRepository.DeleteByID(backup.ID)
-		}
-
-		databases.RemoveTestDatabase(database)
-		time.Sleep(50 * time.Millisecond) // Wait for cascading deletes
-		notifiers.RemoveTestNotifier(notifier)
-		storages.RemoveTestStorage(storage.ID)
-		workspaces_testing.RemoveTestWorkspace(workspace, router)
-	}()
-
-	t.Run("BackupFailed_FailNotificationSent", func(t *testing.T) {
-		mockNotificationSender := &MockNotificationSender{}
-		backupService := &BackupService{
-			databases.GetDatabaseService(),
-			storages.GetStorageService(),
-			backupRepository,
-			notifiers.GetNotifierService(),
-			mockNotificationSender,
-			backups_config.GetBackupConfigService(),
-			encryption_secrets.GetSecretKeyService(),
-			encryption.GetFieldEncryptor(),
-			&CreateFailedBackupUsecase{},
-			logger.GetLogger(),
-			[]BackupRemoveListener{},
-			workspaces_services.GetWorkspaceService(),
-			nil,
-			NewBackupContextManager(),
-		}
-
-		// Set up expectations
-		mockNotificationSender.On("SendNotification",
-			mock.Anything,
-			mock.MatchedBy(func(title string) bool {
-				return strings.Contains(title, "❌ Backup failed")
-			}),
-			mock.MatchedBy(func(message string) bool {
-				return strings.Contains(message, "backup failed")
-			}),
-		).Once()
-
-		backupService.MakeBackup(database.ID, true)
-
-		// Verify all expectations were met
-		mockNotificationSender.AssertExpectations(t)
-	})
-
-	t.Run("BackupSuccess_SuccessNotificationSent", func(t *testing.T) {
-		mockNotificationSender := &MockNotificationSender{}
-
-		// Set up expectations
-		mockNotificationSender.On("SendNotification",
-			mock.Anything,
-			mock.MatchedBy(func(title string) bool {
-				return strings.Contains(title, "✅ Backup completed")
-			}),
-			mock.MatchedBy(func(message string) bool {
-				return strings.Contains(message, "Backup completed successfully")
-			}),
-		).Once()
-
-		backupService := &BackupService{
-			databases.GetDatabaseService(),
-			storages.GetStorageService(),
-			backupRepository,
-			notifiers.GetNotifierService(),
-			mockNotificationSender,
-			backups_config.GetBackupConfigService(),
-			encryption_secrets.GetSecretKeyService(),
-			encryption.GetFieldEncryptor(),
-			&CreateSuccessBackupUsecase{},
-			logger.GetLogger(),
-			[]BackupRemoveListener{},
-			workspaces_services.GetWorkspaceService(),
-			nil,
-			NewBackupContextManager(),
-		}
-
-		backupService.MakeBackup(database.ID, true)
-
-		// Verify all expectations were met
-		mockNotificationSender.AssertExpectations(t)
-	})
-
-	t.Run("BackupSuccess_VerifyNotificationContent", func(t *testing.T) {
-		mockNotificationSender := &MockNotificationSender{}
-		backupService := &BackupService{
-			databases.GetDatabaseService(),
-			storages.GetStorageService(),
-			backupRepository,
-			notifiers.GetNotifierService(),
-			mockNotificationSender,
-			backups_config.GetBackupConfigService(),
-			encryption_secrets.GetSecretKeyService(),
-			encryption.GetFieldEncryptor(),
-			&CreateSuccessBackupUsecase{},
-			logger.GetLogger(),
-			[]BackupRemoveListener{},
-			workspaces_services.GetWorkspaceService(),
-			nil,
-			NewBackupContextManager(),
-		}
-
-		// capture arguments
-		var capturedNotifier *notifiers.Notifier
-		var capturedTitle string
-		var capturedMessage string
-
-		mockNotificationSender.On("SendNotification",
-			mock.Anything,
-			mock.AnythingOfType("string"),
-			mock.AnythingOfType("string"),
-		).Run(func(args mock.Arguments) {
-			capturedNotifier = args.Get(0).(*notifiers.Notifier)
-			capturedTitle = args.Get(1).(string)
-			capturedMessage = args.Get(2).(string)
-		}).Once()
-
-		backupService.MakeBackup(database.ID, true)
-
-		// Verify expectations were met
-		mockNotificationSender.AssertExpectations(t)
-
-		// Additional detailed assertions
-		assert.Contains(t, capturedTitle, "✅ Backup completed")
-		assert.Contains(t, capturedTitle, database.Name)
-		assert.Contains(t, capturedMessage, "Backup completed successfully")
-		assert.Contains(t, capturedMessage, "10.00 MB")
-		assert.Equal(t, notifier.ID, capturedNotifier.ID)
-	})
-}
-
-type CreateFailedBackupUsecase struct {
-}
-
-func (uc *CreateFailedBackupUsecase) Execute(
-	ctx context.Context,
-	backupID uuid.UUID,
-	backupConfig *backups_config.BackupConfig,
-	database *databases.Database,
-	storage *storages.Storage,
-	backupProgressListener func(completedMBs float64),
-) (*common.BackupMetadata, error) {
-	backupProgressListener(10)
-	return nil, errors.New("backup failed")
-}
-
-type CreateSuccessBackupUsecase struct{}
-
-func (uc *CreateSuccessBackupUsecase) Execute(
-	ctx context.Context,
-	backupID uuid.UUID,
-	backupConfig *backups_config.BackupConfig,
-	database *databases.Database,
-	storage *storages.Storage,
-	backupProgressListener func(completedMBs float64),
-) (*common.BackupMetadata, error) {
-	backupProgressListener(10)
-	return &common.BackupMetadata{
-		EncryptionSalt: nil,
-		EncryptionIV:   nil,
-		Encryption:     backups_config.BackupEncryptionNone,
-	}, nil
-}

backend/internal/features/backups/backups/testing.go

@@ -4,6 +4,7 @@ import (
 	"testing"
 	"time"
 
+	backups_core "databasus-backend/internal/features/backups/backups/core"
 	backups_config "databasus-backend/internal/features/backups/config"
 	"databasus-backend/internal/features/databases"
 	workspaces_controllers "databasus-backend/internal/features/workspaces/controllers"
@@ -14,13 +15,19 @@ import (
 )
 
 func CreateTestRouter() *gin.Engine {
-	return workspaces_testing.CreateTestRouter(
+	router := workspaces_testing.CreateTestRouter(
 		workspaces_controllers.GetWorkspaceController(),
 		workspaces_controllers.GetMembershipController(),
 		databases.GetDatabaseController(),
 		backups_config.GetBackupConfigController(),
 		GetBackupController(),
 	)
+
+	// Register public routes (no auth required - token-based)
+	v1 := router.Group("/api/v1")
+	GetBackupController().RegisterPublicRoutes(v1)
+
+	return router
 }
 
 // WaitForBackupCompletion waits for a new backup to be created and completed (or failed)
@@ -52,9 +59,9 @@ func WaitForBackupCompletion(
 			newestBackup := backups[0]
 			t.Logf("WaitForBackupCompletion: newest backup status: %s", newestBackup.Status)
 
-			if newestBackup.Status == BackupStatusCompleted ||
-				newestBackup.Status == BackupStatusFailed ||
-				newestBackup.Status == BackupStatusCanceled {
+			if newestBackup.Status == backups_core.BackupStatusCompleted ||
+				newestBackup.Status == backups_core.BackupStatusFailed ||
+				newestBackup.Status == backups_core.BackupStatusCanceled {
 				t.Logf(
 					"WaitForBackupCompletion: backup finished with status %s",
 					newestBackup.Status,
@@ -68,3 +75,23 @@ func WaitForBackupCompletion(
 
 	t.Logf("WaitForBackupCompletion: timeout waiting for backup to complete")
 }
+
+// CreateTestBackup creates a simple test backup record for testing purposes
+func CreateTestBackup(databaseID, storageID uuid.UUID) *backups_core.Backup {
+	backup := &backups_core.Backup{
+		ID:               uuid.New(),
+		DatabaseID:       databaseID,
+		StorageID:        storageID,
+		Status:           backups_core.BackupStatusCompleted,
+		BackupSizeMb:     10.5,
+		BackupDurationMs: 1000,
+		CreatedAt:        time.Now().UTC(),
+	}
+
+	repo := &backups_core.BackupRepository{}
+	if err := repo.Save(backup); err != nil {
+		panic(err)
+	}
+
+	return backup
+}

backend/internal/features/backups/backups/usecases/mariadb/create_backup_uc.go

@@ -107,12 +107,14 @@ func (uc *CreateMariadbBackupUsecase) buildMariadbDumpArgs(
 		"--user=" + mdb.Username,
 		"--single-transaction",
 		"--routines",
-		"--triggers",
 		"--quick",
 		"--verbose",
 	}
 
-	if !mdb.IsExcludeEvents {
+	if mdb.HasPrivilege("TRIGGER") {
+		args = append(args, "--triggers")
+	}
+	if mdb.HasPrivilege("EVENT") {
 		args = append(args, "--events")
 	}
 
@@ -120,6 +122,7 @@ func (uc *CreateMariadbBackupUsecase) buildMariadbDumpArgs(
 
 	if mdb.IsHttps {
 		args = append(args, "--ssl")
+		args = append(args, "--skip-ssl-verify-server-cert")
 	}
 
 	if mdb.Database != nil && *mdb.Database != "" {
@@ -263,11 +266,24 @@ func (uc *CreateMariadbBackupUsecase) createTempMyCnfFile(
 	mdbConfig *mariadbtypes.MariadbDatabase,
 	password string,
 ) (string, error) {
-	tempDir, err := os.MkdirTemp(config.GetEnv().TempFolder, "mycnf_"+uuid.New().String())
+	tempFolder := config.GetEnv().TempFolder
+	if err := os.MkdirAll(tempFolder, 0700); err != nil {
+		return "", fmt.Errorf("failed to ensure temp folder exists: %w", err)
+	}
+	if err := os.Chmod(tempFolder, 0700); err != nil {
+		return "", fmt.Errorf("failed to set temp folder permissions: %w", err)
+	}
+
+	tempDir, err := os.MkdirTemp(tempFolder, "mycnf_"+uuid.New().String())
 	if err != nil {
 		return "", fmt.Errorf("failed to create temp directory: %w", err)
 	}
 
+	if err := os.Chmod(tempDir, 0700); err != nil {
+		_ = os.RemoveAll(tempDir)
+		return "", fmt.Errorf("failed to set temp directory permissions: %w", err)
+	}
+
 	myCnfFile := filepath.Join(tempDir, ".my.cnf")
 
 	content := fmt.Sprintf(`[client]
@@ -285,6 +301,7 @@ port=%d
 
 	err = os.WriteFile(myCnfFile, []byte(content), 0600)
 	if err != nil {
+		_ = os.RemoveAll(tempDir)
 		return "", fmt.Errorf("failed to write .my.cnf: %w", err)
 	}
 

backend/internal/features/backups/backups/usecases/mysql/create_backup_uc.go

@@ -105,13 +105,18 @@ func (uc *CreateMysqlBackupUsecase) buildMysqldumpArgs(my *mysqltypes.MysqlDatab
 		"--user=" + my.Username,
 		"--single-transaction",
 		"--routines",
-		"--triggers",
-		"--events",
 		"--set-gtid-purged=OFF",
 		"--quick",
 		"--verbose",
 	}
 
+	if my.HasPrivilege("TRIGGER") {
+		args = append(args, "--triggers")
+	}
+	if my.HasPrivilege("EVENT") {
+		args = append(args, "--events")
+	}
+
 	args = append(args, uc.getNetworkCompressionArgs(my.Version)...)
 
 	if my.IsHttps {
@@ -275,11 +280,24 @@ func (uc *CreateMysqlBackupUsecase) createTempMyCnfFile(
 	myConfig *mysqltypes.MysqlDatabase,
 	password string,
 ) (string, error) {
-	tempDir, err := os.MkdirTemp(config.GetEnv().TempFolder, "mycnf_"+uuid.New().String())
+	tempFolder := config.GetEnv().TempFolder
+	if err := os.MkdirAll(tempFolder, 0700); err != nil {
+		return "", fmt.Errorf("failed to ensure temp folder exists: %w", err)
+	}
+	if err := os.Chmod(tempFolder, 0700); err != nil {
+		return "", fmt.Errorf("failed to set temp folder permissions: %w", err)
+	}
+
+	tempDir, err := os.MkdirTemp(tempFolder, "mycnf_"+uuid.New().String())
 	if err != nil {
 		return "", fmt.Errorf("failed to create temp directory: %w", err)
 	}
 
+	if err := os.Chmod(tempDir, 0700); err != nil {
+		_ = os.RemoveAll(tempDir)
+		return "", fmt.Errorf("failed to set temp directory permissions: %w", err)
+	}
+
 	myCnfFile := filepath.Join(tempDir, ".my.cnf")
 
 	content := fmt.Sprintf(`[client]
@@ -295,6 +313,7 @@ port=%d
 
 	err = os.WriteFile(myCnfFile, []byte(content), 0600)
 	if err != nil {
+		_ = os.RemoveAll(tempDir)
 		return "", fmt.Errorf("failed to write .my.cnf: %w", err)
 	}
 

backend/internal/features/backups/backups/usecases/postgresql/create_backup_uc.go

@@ -135,7 +135,14 @@ func (uc *CreatePostgresqlBackupUsecase) streamToStorage(
 	cmd := exec.CommandContext(ctx, pgBin, args...)
 	uc.logger.Info("Executing PostgreSQL backup command", "command", cmd.String())
 
-	if err := uc.setupPgEnvironment(cmd, pgpassFile, db.Postgresql.IsHttps, password, db.Postgresql.CpuCount, pgBin); err != nil {
+	if err := uc.setupPgEnvironment(
+		cmd,
+		pgpassFile,
+		db.Postgresql.IsHttps,
+		password,
+		db.Postgresql.CpuCount,
+		pgBin,
+	); err != nil {
 		return nil, err
 	}
 
@@ -750,14 +757,28 @@ func (uc *CreatePostgresqlBackupUsecase) createTempPgpassFile(
 		escapedPassword,
 	)
 
-	tempDir, err := os.MkdirTemp("", "pgpass")
+	tempFolder := config.GetEnv().TempFolder
+	if err := os.MkdirAll(tempFolder, 0700); err != nil {
+		return "", fmt.Errorf("failed to ensure temp folder exists: %w", err)
+	}
+	if err := os.Chmod(tempFolder, 0700); err != nil {
+		return "", fmt.Errorf("failed to set temp folder permissions: %w", err)
+	}
+
+	tempDir, err := os.MkdirTemp(tempFolder, "pgpass_"+uuid.New().String())
 	if err != nil {
 		return "", fmt.Errorf("failed to create temporary directory: %w", err)
 	}
 
+	if err := os.Chmod(tempDir, 0700); err != nil {
+		_ = os.RemoveAll(tempDir)
+		return "", fmt.Errorf("failed to set temporary directory permissions: %w", err)
+	}
+
 	pgpassFile := filepath.Join(tempDir, ".pgpass")
 	err = os.WriteFile(pgpassFile, []byte(pgpassContent), 0600)
 	if err != nil {
+		_ = os.RemoveAll(tempDir)
 		return "", fmt.Errorf("failed to write temporary .pgpass file: %w", err)
 	}
 

backend/internal/features/backups/config/controller_test.go

@@ -2,13 +2,16 @@ package backups_config
 
 import (
 	"encoding/json"
+	"fmt"
 	"net/http"
+	"strconv"
 	"testing"
 
 	"github.com/gin-gonic/gin"
 	"github.com/google/uuid"
 	"github.com/stretchr/testify/assert"
 
+	"databasus-backend/internal/config"
 	"databasus-backend/internal/features/databases"
 	"databasus-backend/internal/features/databases/databases/postgresql"
 	"databasus-backend/internal/features/intervals"
@@ -94,7 +97,13 @@ func Test_SaveBackupConfig_PermissionsEnforced(t *testing.T) {
 				testUserToken = owner.Token
 			} else if tt.workspaceRole != nil {
 				member := users_testing.CreateTestUser(users_enums.UserRoleMember)
-				workspaces_testing.AddMemberToWorkspace(workspace, member, *tt.workspaceRole, owner.Token, router)
+				workspaces_testing.AddMemberToWorkspace(
+					workspace,
+					member,
+					*tt.workspaceRole,
+					owner.Token,
+					router,
+				)
 				testUserToken = member.Token
 			}
 
@@ -241,7 +250,13 @@ func Test_GetBackupConfigByDbID_PermissionsEnforced(t *testing.T) {
 				testUserToken = owner.Token
 			} else if tt.workspaceRole != nil {
 				member := users_testing.CreateTestUser(users_enums.UserRoleMember)
-				workspaces_testing.AddMemberToWorkspace(workspace, member, *tt.workspaceRole, owner.Token, router)
+				workspaces_testing.AddMemberToWorkspace(
+					workspace,
+					member,
+					*tt.workspaceRole,
+					owner.Token,
+					router,
+				)
 				testUserToken = member.Token
 			} else {
 				nonMember := users_testing.CreateTestUser(users_enums.UserRoleMember)
@@ -1434,17 +1449,23 @@ func createTestDatabaseViaAPI(
 	token string,
 	router *gin.Engine,
 ) *databases.Database {
-	testDbName := "test_db"
+	env := config.GetEnv()
+	port, err := strconv.Atoi(env.TestPostgres16Port)
+	if err != nil {
+		panic(fmt.Sprintf("Failed to parse TEST_POSTGRES_16_PORT: %v", err))
+	}
+
+	testDbName := "testdb"
 	request := databases.Database{
 		WorkspaceID: &workspaceID,
 		Name:        name,
 		Type:        databases.DatabaseTypePostgres,
 		Postgresql: &postgresql.PostgresqlDatabase{
 			Version:  tools.PostgresqlVersion16,
-			Host:     "localhost",
-			Port:     5432,
-			Username: "postgres",
-			Password: "postgres",
+			Host:     config.GetEnv().TestLocalhost,
+			Port:     port,
+			Username: "testuser",
+			Password: "testpassword",
 			Database: &testDbName,
 			CpuCount: 1,
 		},
@@ -1459,7 +1480,9 @@ func createTestDatabaseViaAPI(
 	)
 
 	if w.Code != http.StatusCreated {
-		panic("Failed to create database")
+		panic(
+			fmt.Sprintf("Failed to create database. Status: %d, Body: %s", w.Code, w.Body.String()),
+		)
 	}
 
 	var database databases.Database

backend/internal/features/backups/config/di.go

@@ -1,10 +1,14 @@
 package backups_config
 
 import (
+	"sync"
+	"sync/atomic"
+
 	"databasus-backend/internal/features/databases"
 	"databasus-backend/internal/features/notifiers"
 	"databasus-backend/internal/features/storages"
 	workspaces_services "databasus-backend/internal/features/workspaces/services"
+	"databasus-backend/internal/util/logger"
 )
 
 var backupConfigRepository = &BackupConfigRepository{}
@@ -28,6 +32,21 @@ func GetBackupConfigService() *BackupConfigService {
 	return backupConfigService
 }
 
+var (
+	setupOnce sync.Once
+	isSetup   atomic.Bool
+)
+
 func SetupDependencies() {
-	storages.GetStorageService().SetStorageDatabaseCounter(backupConfigService)
+	wasAlreadySetup := isSetup.Load()
+
+	setupOnce.Do(func() {
+		storages.GetStorageService().SetStorageDatabaseCounter(backupConfigService)
+
+		isSetup.Store(true)
+	})
+
+	if wasAlreadySetup {
+		logger.GetLogger().Warn("SetupDependencies called multiple times, ignoring subsequent call")
+	}
 }

backend/internal/features/backups/config/model.go

@@ -31,6 +31,11 @@ type BackupConfig struct {
 	MaxFailedTriesCount int  `json:"maxFailedTriesCount" gorm:"column:max_failed_tries_count;type:int;not null"`
 
 	Encryption BackupEncryption `json:"encryption" gorm:"column:encryption;type:text;not null;default:'NONE'"`
+
+	// MaxBackupSizeMB limits individual backup size. 0 = unlimited.
+	MaxBackupSizeMB int64 `json:"maxBackupSizeMb"       gorm:"column:max_backup_size_mb;type:int;not null"`
+	// MaxBackupsTotalSizeMB limits total size of all backups. 0 = unlimited.
+	MaxBackupsTotalSizeMB int64 `json:"maxBackupsTotalSizeMb" gorm:"column:max_backups_total_size_mb;type:int;not null"`
 }
 
 func (h *BackupConfig) TableName() string {
@@ -89,20 +94,30 @@ func (b *BackupConfig) Validate() error {
 		return errors.New("encryption must be NONE or ENCRYPTED")
 	}
 
+	if b.MaxBackupSizeMB < 0 {
+		return errors.New("max backup size must be non-negative")
+	}
+
+	if b.MaxBackupsTotalSizeMB < 0 {
+		return errors.New("max backups total size must be non-negative")
+	}
+
 	return nil
 }
 
 func (b *BackupConfig) Copy(newDatabaseID uuid.UUID) *BackupConfig {
 	return &BackupConfig{
-		DatabaseID:          newDatabaseID,
-		IsBackupsEnabled:    b.IsBackupsEnabled,
-		StorePeriod:         b.StorePeriod,
-		BackupIntervalID:    uuid.Nil,
-		BackupInterval:      b.BackupInterval.Copy(),
-		StorageID:           b.StorageID,
-		SendNotificationsOn: b.SendNotificationsOn,
-		IsRetryIfFailed:     b.IsRetryIfFailed,
-		MaxFailedTriesCount: b.MaxFailedTriesCount,
-		Encryption:          b.Encryption,
+		DatabaseID:            newDatabaseID,
+		IsBackupsEnabled:      b.IsBackupsEnabled,
+		StorePeriod:           b.StorePeriod,
+		BackupIntervalID:      uuid.Nil,
+		BackupInterval:        b.BackupInterval.Copy(),
+		StorageID:             b.StorageID,
+		SendNotificationsOn:   b.SendNotificationsOn,
+		IsRetryIfFailed:       b.IsRetryIfFailed,
+		MaxFailedTriesCount:   b.MaxFailedTriesCount,
+		Encryption:            b.Encryption,
+		MaxBackupSizeMB:       b.MaxBackupSizeMB,
+		MaxBackupsTotalSizeMB: b.MaxBackupsTotalSizeMB,
 	}
 }

backend/internal/features/databases/controller.go

@@ -392,13 +392,13 @@ func (c *DatabaseController) IsUserReadOnly(ctx *gin.Context) {
 		return
 	}
 
-	isReadOnly, err := c.databaseService.IsUserReadOnly(user, &request)
+	isReadOnly, privileges, err := c.databaseService.IsUserReadOnly(user, &request)
 	if err != nil {
 		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 		return
 	}
 
-	ctx.JSON(http.StatusOK, IsReadOnlyResponse{IsReadOnly: isReadOnly})
+	ctx.JSON(http.StatusOK, IsReadOnlyResponse{IsReadOnly: isReadOnly, Privileges: privileges})
 }
 
 // CreateReadOnlyUser

backend/internal/features/databases/controller_test.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/http"
+	"strconv"
 	"strings"
 	"testing"
 
@@ -11,6 +12,7 @@ import (
 	"github.com/google/uuid"
 	"github.com/stretchr/testify/assert"
 
+	"databasus-backend/internal/config"
 	"databasus-backend/internal/features/databases/databases/mariadb"
 	"databasus-backend/internal/features/databases/databases/mongodb"
 	"databasus-backend/internal/features/databases/databases/postgresql"
@@ -32,6 +34,71 @@ func createTestRouter() *gin.Engine {
 	return router
 }
 
+func getTestPostgresConfig() *postgresql.PostgresqlDatabase {
+	env := config.GetEnv()
+	port, err := strconv.Atoi(env.TestPostgres16Port)
+	if err != nil {
+		panic(fmt.Sprintf("Failed to parse TEST_POSTGRES_16_PORT: %v", err))
+	}
+
+	testDbName := "testdb"
+	return &postgresql.PostgresqlDatabase{
+		Version:  tools.PostgresqlVersion16,
+		Host:     config.GetEnv().TestLocalhost,
+		Port:     port,
+		Username: "testuser",
+		Password: "testpassword",
+		Database: &testDbName,
+		CpuCount: 1,
+	}
+}
+
+func getTestMariadbConfig() *mariadb.MariadbDatabase {
+	env := config.GetEnv()
+	portStr := env.TestMariadb1011Port
+	if portStr == "" {
+		portStr = "33111"
+	}
+	port, err := strconv.Atoi(portStr)
+	if err != nil {
+		panic(fmt.Sprintf("Failed to parse TEST_MARIADB_1011_PORT: %v", err))
+	}
+
+	testDbName := "testdb"
+	return &mariadb.MariadbDatabase{
+		Version:  tools.MariadbVersion1011,
+		Host:     config.GetEnv().TestLocalhost,
+		Port:     port,
+		Username: "testuser",
+		Password: "testpassword",
+		Database: &testDbName,
+	}
+}
+
+func getTestMongodbConfig() *mongodb.MongodbDatabase {
+	env := config.GetEnv()
+	portStr := env.TestMongodb70Port
+	if portStr == "" {
+		portStr = "27070"
+	}
+	port, err := strconv.Atoi(portStr)
+	if err != nil {
+		panic(fmt.Sprintf("Failed to parse TEST_MONGODB_70_PORT: %v", err))
+	}
+
+	return &mongodb.MongodbDatabase{
+		Version:      tools.MongodbVersion7,
+		Host:         config.GetEnv().TestLocalhost,
+		Port:         port,
+		Username:     "root",
+		Password:     "rootpassword",
+		Database:     "testdb",
+		AuthDatabase: "admin",
+		IsHttps:      false,
+		CpuCount:     1,
+	}
+}
+
 func Test_CreateDatabase_PermissionsEnforced(t *testing.T) {
 	tests := []struct {
 		name               string
@@ -84,24 +151,21 @@ func Test_CreateDatabase_PermissionsEnforced(t *testing.T) {
 				testUserToken = owner.Token
 			} else if tt.workspaceRole != nil {
 				member := users_testing.CreateTestUser(users_enums.UserRoleMember)
-				workspaces_testing.AddMemberToWorkspace(workspace, member, *tt.workspaceRole, owner.Token, router)
+				workspaces_testing.AddMemberToWorkspace(
+					workspace,
+					member,
+					*tt.workspaceRole,
+					owner.Token,
+					router,
+				)
 				testUserToken = member.Token
 			}
 
-			testDbName := "test_db"
 			request := Database{
 				Name:        "Test Database",
 				WorkspaceID: &workspace.ID,
 				Type:        DatabaseTypePostgres,
-				Postgresql: &postgresql.PostgresqlDatabase{
-					Version:  tools.PostgresqlVersion16,
-					Host:     "localhost",
-					Port:     5432,
-					Username: "postgres",
-					Password: "postgres",
-					Database: &testDbName,
-					CpuCount: 1,
-				},
+				Postgresql:  getTestPostgresConfig(),
 			}
 
 			var response Database
@@ -132,20 +196,11 @@ func Test_CreateDatabase_WhenUserIsNotWorkspaceMember_ReturnsForbidden(t *testin
 
 	nonMember := users_testing.CreateTestUser(users_enums.UserRoleMember)
 
-	testDbName := "test_db"
 	request := Database{
 		Name:        "Test Database",
 		WorkspaceID: &workspace.ID,
 		Type:        DatabaseTypePostgres,
-		Postgresql: &postgresql.PostgresqlDatabase{
-			Version:  tools.PostgresqlVersion16,
-			Host:     "localhost",
-			Port:     5432,
-			Username: "postgres",
-			Password: "postgres",
-			Database: &testDbName,
-			CpuCount: 1,
-		},
+		Postgresql:  getTestPostgresConfig(),
 	}
 
 	testResp := test_utils.MakePostRequest(
@@ -214,7 +269,13 @@ func Test_UpdateDatabase_PermissionsEnforced(t *testing.T) {
 				testUserToken = owner.Token
 			} else if tt.workspaceRole != nil {
 				member := users_testing.CreateTestUser(users_enums.UserRoleMember)
-				workspaces_testing.AddMemberToWorkspace(workspace, member, *tt.workspaceRole, owner.Token, router)
+				workspaces_testing.AddMemberToWorkspace(
+					workspace,
+					member,
+					*tt.workspaceRole,
+					owner.Token,
+					router,
+				)
 				testUserToken = member.Token
 			}
 
@@ -316,7 +377,13 @@ func Test_DeleteDatabase_PermissionsEnforced(t *testing.T) {
 				testUserToken = owner.Token
 			} else if tt.workspaceRole != nil {
 				member := users_testing.CreateTestUser(users_enums.UserRoleMember)
-				workspaces_testing.AddMemberToWorkspace(workspace, member, *tt.workspaceRole, owner.Token, router)
+				workspaces_testing.AddMemberToWorkspace(
+					workspace,
+					member,
+					*tt.workspaceRole,
+					owner.Token,
+					router,
+				)
 				testUserToken = member.Token
 			}
 
@@ -381,7 +448,13 @@ func Test_GetDatabase_PermissionsEnforced(t *testing.T) {
 				testUser = admin.Token
 			} else if tt.userRole != nil {
 				member := users_testing.CreateTestUser(users_enums.UserRoleMember)
-				workspaces_testing.AddMemberToWorkspace(workspace, member, *tt.userRole, owner.Token, router)
+				workspaces_testing.AddMemberToWorkspace(
+					workspace,
+					member,
+					*tt.userRole,
+					owner.Token,
+					router,
+				)
 				testUser = member.Token
 			} else {
 				nonMember := users_testing.CreateTestUser(users_enums.UserRoleMember)
@@ -605,7 +678,13 @@ func Test_CopyDatabase_PermissionsEnforced(t *testing.T) {
 				testUserToken = owner.Token
 			} else if tt.workspaceRole != nil {
 				member := users_testing.CreateTestUser(users_enums.UserRoleMember)
-				workspaces_testing.AddMemberToWorkspace(workspace, member, *tt.workspaceRole, owner.Token, router)
+				workspaces_testing.AddMemberToWorkspace(
+					workspace,
+					member,
+					*tt.workspaceRole,
+					owner.Token,
+					router,
+				)
 				testUserToken = member.Token
 			}
 
@@ -737,17 +816,23 @@ func createTestDatabaseViaAPI(
 	token string,
 	router *gin.Engine,
 ) *Database {
-	testDbName := "test_db"
+	env := config.GetEnv()
+	port, err := strconv.Atoi(env.TestPostgres16Port)
+	if err != nil {
+		panic(fmt.Sprintf("Failed to parse TEST_POSTGRES_16_PORT: %v", err))
+	}
+
+	testDbName := "testdb"
 	request := Database{
 		Name:        name,
 		WorkspaceID: &workspaceID,
 		Type:        DatabaseTypePostgres,
 		Postgresql: &postgresql.PostgresqlDatabase{
 			Version:  tools.PostgresqlVersion16,
-			Host:     "localhost",
-			Port:     5432,
-			Username: "postgres",
-			Password: "postgres",
+			Host:     config.GetEnv().TestLocalhost,
+			Port:     port,
+			Username: "testuser",
+			Password: "testpassword",
 			Database: &testDbName,
 			CpuCount: 1,
 		},
@@ -780,21 +865,14 @@ func Test_CreateDatabase_PasswordIsEncryptedInDB(t *testing.T) {
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
-	testDbName := "test_db"
-	plainPassword := "my-super-secret-password-123"
+	pgConfig := getTestPostgresConfig()
+	plainPassword := "testpassword"
+	pgConfig.Password = plainPassword
 	request := Database{
 		Name:        "Test Database",
 		WorkspaceID: &workspace.ID,
 		Type:        DatabaseTypePostgres,
-		Postgresql: &postgresql.PostgresqlDatabase{
-			Version:  tools.PostgresqlVersion16,
-			Host:     "localhost",
-			Port:     5432,
-			Username: "postgres",
-			Password: plainPassword,
-			Database: &testDbName,
-			CpuCount: 1,
-		},
+		Postgresql:  pgConfig,
 	}
 
 	var createdDatabase Database
@@ -854,38 +932,23 @@ func Test_DatabaseSensitiveDataLifecycle_AllTypes(t *testing.T) {
 			name:         "PostgreSQL Database",
 			databaseType: DatabaseTypePostgres,
 			createDatabase: func(workspaceID uuid.UUID) *Database {
-				testDbName := "test_db"
+				pgConfig := getTestPostgresConfig()
 				return &Database{
 					WorkspaceID: &workspaceID,
 					Name:        "Test PostgreSQL Database",
 					Type:        DatabaseTypePostgres,
-					Postgresql: &postgresql.PostgresqlDatabase{
-						Version:  tools.PostgresqlVersion16,
-						Host:     "localhost",
-						Port:     5432,
-						Username: "postgres",
-						Password: "original-password-secret",
-						Database: &testDbName,
-						CpuCount: 1,
-					},
+					Postgresql:  pgConfig,
 				}
 			},
 			updateDatabase: func(workspaceID uuid.UUID, databaseID uuid.UUID) *Database {
-				testDbName := "updated_test_db"
+				pgConfig := getTestPostgresConfig()
+				pgConfig.Password = ""
 				return &Database{
 					ID:          databaseID,
 					WorkspaceID: &workspaceID,
 					Name:        "Updated PostgreSQL Database",
 					Type:        DatabaseTypePostgres,
-					Postgresql: &postgresql.PostgresqlDatabase{
-						Version:  tools.PostgresqlVersion17,
-						Host:     "updated-host",
-						Port:     5433,
-						Username: "updated_user",
-						Password: "",
-						Database: &testDbName,
-						CpuCount: 1,
-					},
+					Postgresql:  pgConfig,
 				}
 			},
 			verifySensitiveData: func(t *testing.T, database *Database) {
@@ -895,7 +958,7 @@ func Test_DatabaseSensitiveDataLifecycle_AllTypes(t *testing.T) {
 				encryptor := encryption.GetFieldEncryptor()
 				decrypted, err := encryptor.Decrypt(database.ID, database.Postgresql.Password)
 				assert.NoError(t, err)
-				assert.Equal(t, "original-password-secret", decrypted)
+				assert.Equal(t, "testpassword", decrypted)
 			},
 			verifyHiddenData: func(t *testing.T, database *Database) {
 				assert.Equal(t, "", database.Postgresql.Password)
@@ -905,36 +968,23 @@ func Test_DatabaseSensitiveDataLifecycle_AllTypes(t *testing.T) {
 			name:         "MariaDB Database",
 			databaseType: DatabaseTypeMariadb,
 			createDatabase: func(workspaceID uuid.UUID) *Database {
-				testDbName := "test_db"
+				mariaConfig := getTestMariadbConfig()
 				return &Database{
 					WorkspaceID: &workspaceID,
 					Name:        "Test MariaDB Database",
 					Type:        DatabaseTypeMariadb,
-					Mariadb: &mariadb.MariadbDatabase{
-						Version:  tools.MariadbVersion1011,
-						Host:     "localhost",
-						Port:     3306,
-						Username: "root",
-						Password: "original-password-secret",
-						Database: &testDbName,
-					},
+					Mariadb:     mariaConfig,
 				}
 			},
 			updateDatabase: func(workspaceID uuid.UUID, databaseID uuid.UUID) *Database {
-				testDbName := "updated_test_db"
+				mariaConfig := getTestMariadbConfig()
+				mariaConfig.Password = ""
 				return &Database{
 					ID:          databaseID,
 					WorkspaceID: &workspaceID,
 					Name:        "Updated MariaDB Database",
 					Type:        DatabaseTypeMariadb,
-					Mariadb: &mariadb.MariadbDatabase{
-						Version:  tools.MariadbVersion114,
-						Host:     "updated-host",
-						Port:     3307,
-						Username: "updated_user",
-						Password: "",
-						Database: &testDbName,
-					},
+					Mariadb:     mariaConfig,
 				}
 			},
 			verifySensitiveData: func(t *testing.T, database *Database) {
@@ -944,7 +994,7 @@ func Test_DatabaseSensitiveDataLifecycle_AllTypes(t *testing.T) {
 				encryptor := encryption.GetFieldEncryptor()
 				decrypted, err := encryptor.Decrypt(database.ID, database.Mariadb.Password)
 				assert.NoError(t, err)
-				assert.Equal(t, "original-password-secret", decrypted)
+				assert.Equal(t, "testpassword", decrypted)
 			},
 			verifyHiddenData: func(t *testing.T, database *Database) {
 				assert.Equal(t, "", database.Mariadb.Password)
@@ -954,40 +1004,23 @@ func Test_DatabaseSensitiveDataLifecycle_AllTypes(t *testing.T) {
 			name:         "MongoDB Database",
 			databaseType: DatabaseTypeMongodb,
 			createDatabase: func(workspaceID uuid.UUID) *Database {
+				mongoConfig := getTestMongodbConfig()
 				return &Database{
 					WorkspaceID: &workspaceID,
 					Name:        "Test MongoDB Database",
 					Type:        DatabaseTypeMongodb,
-					Mongodb: &mongodb.MongodbDatabase{
-						Version:      tools.MongodbVersion7,
-						Host:         "localhost",
-						Port:         27017,
-						Username:     "root",
-						Password:     "original-password-secret",
-						Database:     "test_db",
-						AuthDatabase: "admin",
-						IsHttps:      false,
-						CpuCount:     1,
-					},
+					Mongodb:     mongoConfig,
 				}
 			},
 			updateDatabase: func(workspaceID uuid.UUID, databaseID uuid.UUID) *Database {
+				mongoConfig := getTestMongodbConfig()
+				mongoConfig.Password = ""
 				return &Database{
 					ID:          databaseID,
 					WorkspaceID: &workspaceID,
 					Name:        "Updated MongoDB Database",
 					Type:        DatabaseTypeMongodb,
-					Mongodb: &mongodb.MongodbDatabase{
-						Version:      tools.MongodbVersion8,
-						Host:         "updated-host",
-						Port:         27018,
-						Username:     "updated_user",
-						Password:     "",
-						Database:     "updated_test_db",
-						AuthDatabase: "admin",
-						IsHttps:      false,
-						CpuCount:     1,
-					},
+					Mongodb:     mongoConfig,
 				}
 			},
 			verifySensitiveData: func(t *testing.T, database *Database) {
@@ -997,7 +1030,7 @@ func Test_DatabaseSensitiveDataLifecycle_AllTypes(t *testing.T) {
 				encryptor := encryption.GetFieldEncryptor()
 				decrypted, err := encryptor.Decrypt(database.ID, database.Mongodb.Password)
 				assert.NoError(t, err)
-				assert.Equal(t, "original-password-secret", decrypted)
+				assert.Equal(t, "rootpassword", decrypted)
 			},
 			verifyHiddenData: func(t *testing.T, database *Database) {
 				assert.Equal(t, "", database.Mongodb.Password)

backend/internal/features/databases/databases/mariadb/model.go

@@ -2,18 +2,20 @@ package mariadb
 
 import (
 	"context"
+	"crypto/tls"
 	"database/sql"
 	"errors"
 	"fmt"
 	"log/slog"
 	"regexp"
+	"sort"
 	"strings"
 	"time"
 
 	"databasus-backend/internal/util/encryption"
 	"databasus-backend/internal/util/tools"
 
-	_ "github.com/go-sql-driver/mysql"
+	"github.com/go-sql-driver/mysql"
 	"github.com/google/uuid"
 )
 
@@ -23,15 +25,13 @@ type MariadbDatabase struct {
 
 	Version tools.MariadbVersion `json:"version" gorm:"type:text;not null"`
 
-	Host     string  `json:"host"     gorm:"type:text;not null"`
-	Port     int     `json:"port"     gorm:"type:int;not null"`
-	Username string  `json:"username" gorm:"type:text;not null"`
-	Password string  `json:"password" gorm:"type:text;not null"`
-	Database *string `json:"database" gorm:"type:text"`
-	IsHttps  bool    `json:"isHttps"  gorm:"type:boolean;default:false"`
-
-	// advanced
-	IsExcludeEvents bool `json:"isExcludeEvents" gorm:"column:is_exclude_events;type:boolean;default:false"`
+	Host       string  `json:"host"       gorm:"type:text;not null"`
+	Port       int     `json:"port"       gorm:"type:int;not null"`
+	Username   string  `json:"username"   gorm:"type:text;not null"`
+	Password   string  `json:"password"   gorm:"type:text;not null"`
+	Database   *string `json:"database"   gorm:"type:text"`
+	IsHttps    bool    `json:"isHttps"    gorm:"type:boolean;default:false"`
+	Privileges string  `json:"privileges" gorm:"column:privileges;type:text;not null;default:''"`
 }
 
 func (m *MariadbDatabase) TableName() string {
@@ -97,6 +97,16 @@ func (m *MariadbDatabase) TestConnection(
 	}
 	m.Version = detectedVersion
 
+	privileges, err := detectPrivileges(ctx, db, *m.Database)
+	if err != nil {
+		return err
+	}
+	m.Privileges = privileges
+
+	if err := checkBackupPermissions(m.Privileges); err != nil {
+		return err
+	}
+
 	return nil
 }
 
@@ -114,7 +124,7 @@ func (m *MariadbDatabase) Update(incoming *MariadbDatabase) {
 	m.Username = incoming.Username
 	m.Database = incoming.Database
 	m.IsHttps = incoming.IsHttps
-	m.IsExcludeEvents = incoming.IsExcludeEvents
+	m.Privileges = incoming.Privileges
 
 	if incoming.Password != "" {
 		m.Password = incoming.Password
@@ -135,15 +145,48 @@ func (m *MariadbDatabase) EncryptSensitiveFields(
 	return nil
 }
 
-func (m *MariadbDatabase) PopulateVersionIfEmpty(
+func (m *MariadbDatabase) PopulateDbData(
 	logger *slog.Logger,
 	encryptor encryption.FieldEncryptor,
 	databaseID uuid.UUID,
 ) error {
-	if m.Version != "" {
+	if m.Database == nil || *m.Database == "" {
 		return nil
 	}
-	return m.PopulateVersion(logger, encryptor, databaseID)
+
+	ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
+	defer cancel()
+
+	password, err := decryptPasswordIfNeeded(m.Password, encryptor, databaseID)
+	if err != nil {
+		return fmt.Errorf("failed to decrypt password: %w", err)
+	}
+
+	dsn := m.buildDSN(password, *m.Database)
+
+	db, err := sql.Open("mysql", dsn)
+	if err != nil {
+		return fmt.Errorf("failed to connect to database: %w", err)
+	}
+	defer func() {
+		if closeErr := db.Close(); closeErr != nil {
+			logger.Error("Failed to close connection", "error", closeErr)
+		}
+	}()
+
+	detectedVersion, err := detectMariadbVersion(ctx, db)
+	if err != nil {
+		return err
+	}
+	m.Version = detectedVersion
+
+	privileges, err := detectPrivileges(ctx, db, *m.Database)
+	if err != nil {
+		return err
+	}
+	m.Privileges = privileges
+
+	return nil
 }
 
 func (m *MariadbDatabase) PopulateVersion(
@@ -179,8 +222,8 @@ func (m *MariadbDatabase) PopulateVersion(
 	if err != nil {
 		return err
 	}
-
 	m.Version = detectedVersion
+
 	return nil
 }
 
@@ -189,17 +232,17 @@ func (m *MariadbDatabase) IsUserReadOnly(
 	logger *slog.Logger,
 	encryptor encryption.FieldEncryptor,
 	databaseID uuid.UUID,
-) (bool, error) {
+) (bool, []string, error) {
 	password, err := decryptPasswordIfNeeded(m.Password, encryptor, databaseID)
 	if err != nil {
-		return false, fmt.Errorf("failed to decrypt password: %w", err)
+		return false, nil, fmt.Errorf("failed to decrypt password: %w", err)
 	}
 
 	dsn := m.buildDSN(password, *m.Database)
 
 	db, err := sql.Open("mysql", dsn)
 	if err != nil {
-		return false, fmt.Errorf("failed to connect to database: %w", err)
+		return false, nil, fmt.Errorf("failed to connect to database: %w", err)
 	}
 	defer func() {
 		if closeErr := db.Close(); closeErr != nil {
@@ -209,33 +252,44 @@ func (m *MariadbDatabase) IsUserReadOnly(
 
 	rows, err := db.QueryContext(ctx, "SHOW GRANTS FOR CURRENT_USER()")
 	if err != nil {
-		return false, fmt.Errorf("failed to check grants: %w", err)
+		return false, nil, fmt.Errorf("failed to check grants: %w", err)
 	}
 	defer func() { _ = rows.Close() }()
 
 	writePrivileges := []string{
 		"INSERT", "UPDATE", "DELETE", "CREATE", "DROP", "ALTER",
 		"INDEX", "GRANT OPTION", "ALL PRIVILEGES", "SUPER",
+		"EXECUTE", "FILE", "RELOAD", "SHUTDOWN", "CREATE ROUTINE",
+		"ALTER ROUTINE", "CREATE USER",
+		"CREATE TABLESPACE", "DELETE HISTORY", "REFERENCES",
 	}
 
+	detectedPrivileges := make(map[string]bool)
+
 	for rows.Next() {
 		var grant string
 		if err := rows.Scan(&grant); err != nil {
-			return false, fmt.Errorf("failed to scan grant: %w", err)
+			return false, nil, fmt.Errorf("failed to scan grant: %w", err)
 		}
 
 		for _, priv := range writePrivileges {
 			if regexp.MustCompile(`(?i)\b` + priv + `\b`).MatchString(grant) {
-				return false, nil
+				detectedPrivileges[priv] = true
 			}
 		}
 	}
 
 	if err := rows.Err(); err != nil {
-		return false, fmt.Errorf("error iterating grants: %w", err)
+		return false, nil, fmt.Errorf("error iterating grants: %w", err)
 	}
 
-	return true, nil
+	privileges := make([]string, 0, len(detectedPrivileges))
+	for priv := range detectedPrivileges {
+		privileges = append(privileges, priv)
+	}
+
+	isReadOnly := len(privileges) == 0
+	return isReadOnly, privileges, nil
 }
 
 func (m *MariadbDatabase) CreateReadOnlyUser(
@@ -265,7 +319,7 @@ func (m *MariadbDatabase) CreateReadOnlyUser(
 	for attempt := range maxRetries {
 		// MariaDB 5.5 has a 16-character username limit, use shorter prefix
 		newUsername := fmt.Sprintf("pgs-%s", uuid.New().String()[:8])
-		newPassword := uuid.New().String()
+		newPassword := encryption.GenerateComplexPassword()
 
 		tx, err := db.BeginTx(ctx, nil)
 		if err != nil {
@@ -330,10 +384,31 @@ func (m *MariadbDatabase) CreateReadOnlyUser(
 	return "", "", errors.New("failed to generate unique username after 3 attempts")
 }
 
+func (m *MariadbDatabase) HasPrivilege(priv string) bool {
+	return HasPrivilege(m.Privileges, priv)
+}
+
+func HasPrivilege(privileges, priv string) bool {
+	for _, p := range strings.Split(privileges, ",") {
+		if strings.TrimSpace(p) == priv {
+			return true
+		}
+	}
+	return false
+}
+
 func (m *MariadbDatabase) buildDSN(password string, database string) string {
 	tlsConfig := "false"
+
 	if m.IsHttps {
-		tlsConfig = "true"
+		err := mysql.RegisterTLSConfig("mariadb-skip-verify", &tls.Config{
+			InsecureSkipVerify: true,
+		})
+		if err != nil {
+			// Config might already be registered, which is fine
+			_ = err
+		}
+		tlsConfig = "mariadb-skip-verify"
 	}
 
 	return fmt.Sprintf(
@@ -424,6 +499,108 @@ func mapMariadb11xVersion(minor string) (tools.MariadbVersion, error) {
 	}
 }
 
+// detectPrivileges detects backup-related privileges and returns them as comma-separated string
+func detectPrivileges(ctx context.Context, db *sql.DB, database string) (string, error) {
+	rows, err := db.QueryContext(ctx, "SHOW GRANTS FOR CURRENT_USER()")
+	if err != nil {
+		return "", fmt.Errorf("failed to check grants: %w", err)
+	}
+	defer func() { _ = rows.Close() }()
+
+	backupPrivileges := []string{
+		"SELECT", "SHOW VIEW", "LOCK TABLES", "TRIGGER", "EVENT",
+	}
+
+	detectedPrivileges := make(map[string]bool)
+	hasProcess := false
+	hasAllPrivileges := false
+
+	// Escape underscores to match MariaDB's grant output format
+	// MariaDB escapes _ as \_ in SHOW GRANTS output
+	// Pattern matches either literal _ or escaped \_
+	escapedDbName := strings.ReplaceAll(regexp.QuoteMeta(database), "_", `(_|\\_)`)
+	dbPatternStr := fmt.Sprintf(
+		`(?i)ON\s+[\x60'"]?%s[\x60'"]?\s*\.\s*\*`,
+		escapedDbName,
+	)
+	dbPattern := regexp.MustCompile(dbPatternStr)
+	globalPattern := regexp.MustCompile(`(?i)ON\s+\*\s*\.\s*\*`)
+	allPrivilegesPattern := regexp.MustCompile(`(?i)\bALL\s+PRIVILEGES\b`)
+
+	for rows.Next() {
+		var grant string
+		if err := rows.Scan(&grant); err != nil {
+			return "", fmt.Errorf("failed to scan grant: %w", err)
+		}
+
+		isRelevantGrant := globalPattern.MatchString(grant) || dbPattern.MatchString(grant)
+
+		if allPrivilegesPattern.MatchString(grant) && isRelevantGrant {
+			hasAllPrivileges = true
+		}
+
+		if isRelevantGrant {
+			for _, priv := range backupPrivileges {
+				privPattern := regexp.MustCompile(`(?i)\b` + regexp.QuoteMeta(priv) + `\b`)
+				if privPattern.MatchString(grant) {
+					detectedPrivileges[priv] = true
+				}
+			}
+		}
+
+		if globalPattern.MatchString(grant) {
+			processPattern := regexp.MustCompile(`(?i)\bPROCESS\b`)
+			if processPattern.MatchString(grant) {
+				hasProcess = true
+			}
+		}
+	}
+
+	if err := rows.Err(); err != nil {
+		return "", fmt.Errorf("error iterating grants: %w", err)
+	}
+
+	if hasAllPrivileges {
+		for _, priv := range backupPrivileges {
+			detectedPrivileges[priv] = true
+		}
+		hasProcess = true
+	}
+
+	privileges := make([]string, 0, len(detectedPrivileges)+1)
+	for priv := range detectedPrivileges {
+		privileges = append(privileges, priv)
+	}
+	if hasProcess {
+		privileges = append(privileges, "PROCESS")
+	}
+
+	sort.Strings(privileges)
+	return strings.Join(privileges, ","), nil
+}
+
+// checkBackupPermissions verifies the user has sufficient privileges for mariadb-dump backup.
+// Required: SELECT, SHOW VIEW
+func checkBackupPermissions(privileges string) error {
+	requiredPrivileges := []string{"SELECT", "SHOW VIEW"}
+
+	var missingPrivileges []string
+	for _, priv := range requiredPrivileges {
+		if !HasPrivilege(privileges, priv) {
+			missingPrivileges = append(missingPrivileges, priv)
+		}
+	}
+
+	if len(missingPrivileges) > 0 {
+		return fmt.Errorf(
+			"insufficient permissions for backup. Missing: %s. Required: SELECT, SHOW VIEW",
+			strings.Join(missingPrivileges, ", "),
+		)
+	}
+
+	return nil
+}
+
 func decryptPasswordIfNeeded(
 	password string,
 	encryptor encryption.FieldEncryptor,

backend/internal/features/databases/databases/mariadb/model_test.go

@@ -0,0 +1,866 @@
+package mariadb
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"os"
+	"strconv"
+	"strings"
+	"testing"
+
+	_ "github.com/go-sql-driver/mysql"
+	"github.com/google/uuid"
+	"github.com/jmoiron/sqlx"
+	"github.com/stretchr/testify/assert"
+
+	"databasus-backend/internal/config"
+	"databasus-backend/internal/util/tools"
+)
+
+func Test_TestConnection_InsufficientPermissions_ReturnsError(t *testing.T) {
+	env := config.GetEnv()
+	cases := []struct {
+		name    string
+		version tools.MariadbVersion
+		port    string
+	}{
+		{"MariaDB 5.5", tools.MariadbVersion55, env.TestMariadb55Port},
+		{"MariaDB 10.1", tools.MariadbVersion101, env.TestMariadb101Port},
+		{"MariaDB 10.2", tools.MariadbVersion102, env.TestMariadb102Port},
+		{"MariaDB 10.3", tools.MariadbVersion103, env.TestMariadb103Port},
+		{"MariaDB 10.4", tools.MariadbVersion104, env.TestMariadb104Port},
+		{"MariaDB 10.5", tools.MariadbVersion105, env.TestMariadb105Port},
+		{"MariaDB 10.6", tools.MariadbVersion106, env.TestMariadb106Port},
+		{"MariaDB 10.11", tools.MariadbVersion1011, env.TestMariadb1011Port},
+		{"MariaDB 11.4", tools.MariadbVersion114, env.TestMariadb114Port},
+		{"MariaDB 11.8", tools.MariadbVersion118, env.TestMariadb118Port},
+		{"MariaDB 12.0", tools.MariadbVersion120, env.TestMariadb120Port},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			container := connectToMariadbContainer(t, tc.port, tc.version)
+			defer container.DB.Close()
+
+			_, err := container.DB.Exec(`DROP TABLE IF EXISTS permission_test`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(`CREATE TABLE permission_test (
+				id INT AUTO_INCREMENT PRIMARY KEY,
+				data VARCHAR(255) NOT NULL
+			)`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(`INSERT INTO permission_test (data) VALUES ('test1')`)
+			assert.NoError(t, err)
+
+			limitedUsername := fmt.Sprintf("limited_%s", uuid.New().String()[:8])
+			limitedPassword := "limitedpassword123"
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				"CREATE USER '%s'@'%%' IDENTIFIED BY '%s'",
+				limitedUsername,
+				limitedPassword,
+			))
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				"GRANT SELECT ON `%s`.* TO '%s'@'%%'",
+				container.Database,
+				limitedUsername,
+			))
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec("FLUSH PRIVILEGES")
+			assert.NoError(t, err)
+
+			defer dropUserSafe(container.DB, limitedUsername)
+
+			mariadbModel := &MariadbDatabase{
+				Version:  tc.version,
+				Host:     container.Host,
+				Port:     container.Port,
+				Username: limitedUsername,
+				Password: limitedPassword,
+				Database: &container.Database,
+				IsHttps:  false,
+			}
+
+			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+
+			err = mariadbModel.TestConnection(logger, nil, uuid.New())
+			assert.Error(t, err)
+			assert.Contains(t, err.Error(), "insufficient permissions")
+		})
+	}
+}
+
+func Test_TestConnection_SufficientPermissions_Success(t *testing.T) {
+	env := config.GetEnv()
+	cases := []struct {
+		name    string
+		version tools.MariadbVersion
+		port    string
+	}{
+		{"MariaDB 5.5", tools.MariadbVersion55, env.TestMariadb55Port},
+		{"MariaDB 10.1", tools.MariadbVersion101, env.TestMariadb101Port},
+		{"MariaDB 10.2", tools.MariadbVersion102, env.TestMariadb102Port},
+		{"MariaDB 10.3", tools.MariadbVersion103, env.TestMariadb103Port},
+		{"MariaDB 10.4", tools.MariadbVersion104, env.TestMariadb104Port},
+		{"MariaDB 10.5", tools.MariadbVersion105, env.TestMariadb105Port},
+		{"MariaDB 10.6", tools.MariadbVersion106, env.TestMariadb106Port},
+		{"MariaDB 10.11", tools.MariadbVersion1011, env.TestMariadb1011Port},
+		{"MariaDB 11.4", tools.MariadbVersion114, env.TestMariadb114Port},
+		{"MariaDB 11.8", tools.MariadbVersion118, env.TestMariadb118Port},
+		{"MariaDB 12.0", tools.MariadbVersion120, env.TestMariadb120Port},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			container := connectToMariadbContainer(t, tc.port, tc.version)
+			defer container.DB.Close()
+
+			_, err := container.DB.Exec(`DROP TABLE IF EXISTS backup_test`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(`CREATE TABLE backup_test (
+				id INT AUTO_INCREMENT PRIMARY KEY,
+				data VARCHAR(255) NOT NULL
+			)`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(`INSERT INTO backup_test (data) VALUES ('test1')`)
+			assert.NoError(t, err)
+
+			backupUsername := fmt.Sprintf("backup_%s", uuid.New().String()[:8])
+			backupPassword := "backuppassword123"
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				"CREATE USER '%s'@'%%' IDENTIFIED BY '%s'",
+				backupUsername,
+				backupPassword,
+			))
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				"GRANT SELECT, SHOW VIEW, LOCK TABLES, TRIGGER, EVENT ON `%s`.* TO '%s'@'%%'",
+				container.Database,
+				backupUsername,
+			))
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				"GRANT PROCESS ON *.* TO '%s'@'%%'",
+				backupUsername,
+			))
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec("FLUSH PRIVILEGES")
+			assert.NoError(t, err)
+
+			defer dropUserSafe(container.DB, backupUsername)
+
+			mariadbModel := &MariadbDatabase{
+				Version:  tc.version,
+				Host:     container.Host,
+				Port:     container.Port,
+				Username: backupUsername,
+				Password: backupPassword,
+				Database: &container.Database,
+				IsHttps:  false,
+			}
+
+			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+
+			err = mariadbModel.TestConnection(logger, nil, uuid.New())
+			assert.NoError(t, err)
+		})
+	}
+}
+
+func Test_IsUserReadOnly_AdminUser_ReturnsFalse(t *testing.T) {
+	env := config.GetEnv()
+	cases := []struct {
+		name    string
+		version tools.MariadbVersion
+		port    string
+	}{
+		{"MariaDB 5.5", tools.MariadbVersion55, env.TestMariadb55Port},
+		{"MariaDB 10.1", tools.MariadbVersion101, env.TestMariadb101Port},
+		{"MariaDB 10.2", tools.MariadbVersion102, env.TestMariadb102Port},
+		{"MariaDB 10.3", tools.MariadbVersion103, env.TestMariadb103Port},
+		{"MariaDB 10.4", tools.MariadbVersion104, env.TestMariadb104Port},
+		{"MariaDB 10.5", tools.MariadbVersion105, env.TestMariadb105Port},
+		{"MariaDB 10.6", tools.MariadbVersion106, env.TestMariadb106Port},
+		{"MariaDB 10.11", tools.MariadbVersion1011, env.TestMariadb1011Port},
+		{"MariaDB 11.4", tools.MariadbVersion114, env.TestMariadb114Port},
+		{"MariaDB 11.8", tools.MariadbVersion118, env.TestMariadb118Port},
+		{"MariaDB 12.0", tools.MariadbVersion120, env.TestMariadb120Port},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			container := connectToMariadbContainer(t, tc.port, tc.version)
+			defer container.DB.Close()
+
+			mariadbModel := createMariadbModel(container)
+			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+			ctx := context.Background()
+
+			isReadOnly, privileges, err := mariadbModel.IsUserReadOnly(ctx, logger, nil, uuid.New())
+			assert.NoError(t, err)
+			assert.False(t, isReadOnly, "Root user should not be read-only")
+			assert.NotEmpty(t, privileges, "Root user should have privileges")
+		})
+	}
+}
+
+func Test_IsUserReadOnly_ReadOnlyUser_ReturnsTrue(t *testing.T) {
+	env := config.GetEnv()
+	container := connectToMariadbContainer(t, env.TestMariadb1011Port, tools.MariadbVersion1011)
+	defer container.DB.Close()
+
+	_, err := container.DB.Exec(`DROP TABLE IF EXISTS readonly_check_test`)
+	assert.NoError(t, err)
+
+	_, err = container.DB.Exec(`CREATE TABLE readonly_check_test (
+			id INT AUTO_INCREMENT PRIMARY KEY,
+			data VARCHAR(255) NOT NULL
+		)`)
+	assert.NoError(t, err)
+
+	_, err = container.DB.Exec(`INSERT INTO readonly_check_test (data) VALUES ('test1')`)
+	assert.NoError(t, err)
+
+	mariadbModel := createMariadbModel(container)
+	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+	ctx := context.Background()
+
+	username, password, err := mariadbModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
+	assert.NoError(t, err)
+
+	readOnlyModel := &MariadbDatabase{
+		Version:  mariadbModel.Version,
+		Host:     mariadbModel.Host,
+		Port:     mariadbModel.Port,
+		Username: username,
+		Password: password,
+		Database: mariadbModel.Database,
+		IsHttps:  false,
+	}
+
+	isReadOnly, privileges, err := readOnlyModel.IsUserReadOnly(ctx, logger, nil, uuid.New())
+	assert.NoError(t, err)
+	assert.True(t, isReadOnly, "Read-only user should be read-only")
+	assert.Empty(t, privileges, "Read-only user should have no write privileges")
+
+	dropUserSafe(container.DB, username)
+}
+
+func Test_CreateReadOnlyUser_UserCanReadButNotWrite(t *testing.T) {
+	env := config.GetEnv()
+	cases := []struct {
+		name    string
+		version tools.MariadbVersion
+		port    string
+	}{
+		{"MariaDB 5.5", tools.MariadbVersion55, env.TestMariadb55Port},
+		{"MariaDB 10.1", tools.MariadbVersion101, env.TestMariadb101Port},
+		{"MariaDB 10.2", tools.MariadbVersion102, env.TestMariadb102Port},
+		{"MariaDB 10.3", tools.MariadbVersion103, env.TestMariadb103Port},
+		{"MariaDB 10.4", tools.MariadbVersion104, env.TestMariadb104Port},
+		{"MariaDB 10.5", tools.MariadbVersion105, env.TestMariadb105Port},
+		{"MariaDB 10.6", tools.MariadbVersion106, env.TestMariadb106Port},
+		{"MariaDB 10.11", tools.MariadbVersion1011, env.TestMariadb1011Port},
+		{"MariaDB 11.4", tools.MariadbVersion114, env.TestMariadb114Port},
+		{"MariaDB 11.8", tools.MariadbVersion118, env.TestMariadb118Port},
+		{"MariaDB 12.0", tools.MariadbVersion120, env.TestMariadb120Port},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			container := connectToMariadbContainer(t, tc.port, tc.version)
+			defer container.DB.Close()
+
+			_, err := container.DB.Exec(`DROP TABLE IF EXISTS readonly_test`)
+			assert.NoError(t, err)
+			_, err = container.DB.Exec(`DROP TABLE IF EXISTS hack_table`)
+			assert.NoError(t, err)
+			_, err = container.DB.Exec(`DROP TABLE IF EXISTS future_table`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(`
+				CREATE TABLE readonly_test (
+					id INT AUTO_INCREMENT PRIMARY KEY,
+					data VARCHAR(255) NOT NULL
+				)
+			`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(
+				`INSERT INTO readonly_test (data) VALUES ('test1'), ('test2')`,
+			)
+			assert.NoError(t, err)
+
+			mariadbModel := createMariadbModel(container)
+			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+			ctx := context.Background()
+
+			username, password, err := mariadbModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
+			assert.NoError(t, err)
+			assert.NotEmpty(t, username)
+			assert.NotEmpty(t, password)
+			assert.True(t, strings.HasPrefix(username, "pgs-"))
+
+			if err != nil {
+				return
+			}
+
+			readOnlyModel := &MariadbDatabase{
+				Version:  mariadbModel.Version,
+				Host:     mariadbModel.Host,
+				Port:     mariadbModel.Port,
+				Username: username,
+				Password: password,
+				Database: mariadbModel.Database,
+				IsHttps:  false,
+			}
+
+			isReadOnly, privileges, err := readOnlyModel.IsUserReadOnly(
+				ctx,
+				logger,
+				nil,
+				uuid.New(),
+			)
+			assert.NoError(t, err)
+			assert.True(t, isReadOnly, "Created user should be read-only")
+			assert.Empty(t, privileges, "Read-only user should have no write privileges")
+
+			readOnlyDSN := fmt.Sprintf(
+				"%s:%s@tcp(%s:%d)/%s?parseTime=true",
+				username,
+				password,
+				container.Host,
+				container.Port,
+				container.Database,
+			)
+			readOnlyConn, err := sqlx.Connect("mysql", readOnlyDSN)
+			assert.NoError(t, err)
+			defer readOnlyConn.Close()
+
+			var count int
+			err = readOnlyConn.Get(&count, "SELECT COUNT(*) FROM readonly_test")
+			assert.NoError(t, err)
+			assert.Equal(t, 2, count)
+
+			_, err = readOnlyConn.Exec("INSERT INTO readonly_test (data) VALUES ('should-fail')")
+			assert.Error(t, err)
+			assert.Contains(t, strings.ToLower(err.Error()), "denied")
+
+			_, err = readOnlyConn.Exec("UPDATE readonly_test SET data = 'hacked' WHERE id = 1")
+			assert.Error(t, err)
+			assert.Contains(t, strings.ToLower(err.Error()), "denied")
+
+			_, err = readOnlyConn.Exec("DELETE FROM readonly_test WHERE id = 1")
+			assert.Error(t, err)
+			assert.Contains(t, strings.ToLower(err.Error()), "denied")
+
+			_, err = readOnlyConn.Exec("CREATE TABLE hack_table (id INT)")
+			assert.Error(t, err)
+			assert.Contains(t, strings.ToLower(err.Error()), "denied")
+
+			dropUserSafe(container.DB, username)
+		})
+	}
+}
+
+func Test_ReadOnlyUser_FutureTables_NoSelectPermission(t *testing.T) {
+	env := config.GetEnv()
+	container := connectToMariadbContainer(t, env.TestMariadb1011Port, tools.MariadbVersion1011)
+	defer container.DB.Close()
+
+	mariadbModel := createMariadbModel(container)
+	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+	ctx := context.Background()
+
+	username, password, err := mariadbModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
+	assert.NoError(t, err)
+
+	_, err = container.DB.Exec(`DROP TABLE IF EXISTS future_table`)
+	assert.NoError(t, err)
+	_, err = container.DB.Exec(`
+		CREATE TABLE future_table (
+			id INT AUTO_INCREMENT PRIMARY KEY,
+			data VARCHAR(255) NOT NULL
+		)
+	`)
+	assert.NoError(t, err)
+	_, err = container.DB.Exec(`INSERT INTO future_table (data) VALUES ('future_data')`)
+	assert.NoError(t, err)
+
+	readOnlyDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
+		username, password, container.Host, container.Port, container.Database)
+	readOnlyConn, err := sqlx.Connect("mysql", readOnlyDSN)
+	assert.NoError(t, err)
+	defer readOnlyConn.Close()
+
+	var data string
+	err = readOnlyConn.Get(&data, "SELECT data FROM future_table LIMIT 1")
+	assert.NoError(t, err)
+	assert.Equal(t, "future_data", data)
+
+	dropUserSafe(container.DB, username)
+}
+
+func Test_CreateReadOnlyUser_DatabaseNameWithDash_Success(t *testing.T) {
+	env := config.GetEnv()
+	container := connectToMariadbContainer(t, env.TestMariadb1011Port, tools.MariadbVersion1011)
+	defer container.DB.Close()
+
+	dashDbName := "test-db-with-dash"
+
+	_, err := container.DB.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", dashDbName))
+	assert.NoError(t, err)
+
+	_, err = container.DB.Exec(fmt.Sprintf("CREATE DATABASE `%s`", dashDbName))
+	assert.NoError(t, err)
+
+	defer func() {
+		_, _ = container.DB.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", dashDbName))
+	}()
+
+	dashDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
+		container.Username, container.Password, container.Host, container.Port, dashDbName)
+	dashDB, err := sqlx.Connect("mysql", dashDSN)
+	assert.NoError(t, err)
+	defer dashDB.Close()
+
+	_, err = dashDB.Exec(`
+		CREATE TABLE dash_test (
+			id INT AUTO_INCREMENT PRIMARY KEY,
+			data VARCHAR(255) NOT NULL
+		)
+	`)
+	assert.NoError(t, err)
+
+	_, err = dashDB.Exec(`INSERT INTO dash_test (data) VALUES ('test1'), ('test2')`)
+	assert.NoError(t, err)
+
+	mariadbModel := &MariadbDatabase{
+		Version:  tools.MariadbVersion1011,
+		Host:     container.Host,
+		Port:     container.Port,
+		Username: container.Username,
+		Password: container.Password,
+		Database: &dashDbName,
+		IsHttps:  false,
+	}
+
+	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+	ctx := context.Background()
+
+	username, password, err := mariadbModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
+	assert.NoError(t, err)
+	assert.NotEmpty(t, username)
+	assert.NotEmpty(t, password)
+	assert.True(t, strings.HasPrefix(username, "pgs-"))
+
+	readOnlyDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
+		username, password, container.Host, container.Port, dashDbName)
+	readOnlyConn, err := sqlx.Connect("mysql", readOnlyDSN)
+	assert.NoError(t, err)
+	defer readOnlyConn.Close()
+
+	var count int
+	err = readOnlyConn.Get(&count, "SELECT COUNT(*) FROM dash_test")
+	assert.NoError(t, err)
+	assert.Equal(t, 2, count)
+
+	_, err = readOnlyConn.Exec("INSERT INTO dash_test (data) VALUES ('should-fail')")
+	assert.Error(t, err)
+	assert.Contains(t, strings.ToLower(err.Error()), "denied")
+
+	dropUserSafe(dashDB, username)
+}
+
+func Test_ReadOnlyUser_CannotDropOrAlterTables(t *testing.T) {
+	env := config.GetEnv()
+	container := connectToMariadbContainer(t, env.TestMariadb1011Port, tools.MariadbVersion1011)
+	defer container.DB.Close()
+
+	_, err := container.DB.Exec(`DROP TABLE IF EXISTS drop_test`)
+	assert.NoError(t, err)
+	_, err = container.DB.Exec(`
+		CREATE TABLE drop_test (
+			id INT AUTO_INCREMENT PRIMARY KEY,
+			data VARCHAR(255) NOT NULL
+		)
+	`)
+	assert.NoError(t, err)
+	_, err = container.DB.Exec(`INSERT INTO drop_test (data) VALUES ('test1')`)
+	assert.NoError(t, err)
+
+	mariadbModel := createMariadbModel(container)
+	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+	ctx := context.Background()
+
+	username, password, err := mariadbModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
+	assert.NoError(t, err)
+
+	readOnlyDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
+		username, password, container.Host, container.Port, container.Database)
+	readOnlyConn, err := sqlx.Connect("mysql", readOnlyDSN)
+	assert.NoError(t, err)
+	defer readOnlyConn.Close()
+
+	_, err = readOnlyConn.Exec("DROP TABLE drop_test")
+	assert.Error(t, err)
+	assert.Contains(t, strings.ToLower(err.Error()), "denied")
+
+	_, err = readOnlyConn.Exec("ALTER TABLE drop_test ADD COLUMN new_col VARCHAR(100)")
+	assert.Error(t, err)
+	assert.Contains(t, strings.ToLower(err.Error()), "denied")
+
+	_, err = readOnlyConn.Exec("TRUNCATE TABLE drop_test")
+	assert.Error(t, err)
+	assert.Contains(t, strings.ToLower(err.Error()), "denied")
+
+	dropUserSafe(container.DB, username)
+}
+
+func Test_TestConnection_DatabaseSpecificPrivilegesWithGlobalProcess_Success(t *testing.T) {
+	env := config.GetEnv()
+	cases := []struct {
+		name    string
+		version tools.MariadbVersion
+		port    string
+	}{
+		{"MariaDB 5.5", tools.MariadbVersion55, env.TestMariadb55Port},
+		{"MariaDB 10.1", tools.MariadbVersion101, env.TestMariadb101Port},
+		{"MariaDB 10.2", tools.MariadbVersion102, env.TestMariadb102Port},
+		{"MariaDB 10.3", tools.MariadbVersion103, env.TestMariadb103Port},
+		{"MariaDB 10.4", tools.MariadbVersion104, env.TestMariadb104Port},
+		{"MariaDB 10.5", tools.MariadbVersion105, env.TestMariadb105Port},
+		{"MariaDB 10.6", tools.MariadbVersion106, env.TestMariadb106Port},
+		{"MariaDB 10.11", tools.MariadbVersion1011, env.TestMariadb1011Port},
+		{"MariaDB 11.4", tools.MariadbVersion114, env.TestMariadb114Port},
+		{"MariaDB 11.8", tools.MariadbVersion118, env.TestMariadb118Port},
+		{"MariaDB 12.0", tools.MariadbVersion120, env.TestMariadb120Port},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			container := connectToMariadbContainer(t, tc.port, tc.version)
+			defer container.DB.Close()
+
+			_, err := container.DB.Exec(`DROP TABLE IF EXISTS privilege_test`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(`CREATE TABLE privilege_test (
+				id INT AUTO_INCREMENT PRIMARY KEY,
+				data VARCHAR(255) NOT NULL
+			)`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(`INSERT INTO privilege_test (data) VALUES ('test1')`)
+			assert.NoError(t, err)
+
+			specificUsername := fmt.Sprintf("spec_%s", uuid.New().String()[:8])
+			specificPassword := "specificpass123"
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				"CREATE USER '%s'@'%%' IDENTIFIED BY '%s'",
+				specificUsername,
+				specificPassword,
+			))
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				"GRANT SELECT, SHOW VIEW ON %s.* TO '%s'@'%%'",
+				container.Database,
+				specificUsername,
+			))
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				"GRANT PROCESS ON *.* TO '%s'@'%%'",
+				specificUsername,
+			))
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec("FLUSH PRIVILEGES")
+			assert.NoError(t, err)
+
+			defer dropUserSafe(container.DB, specificUsername)
+
+			mariadbModel := &MariadbDatabase{
+				Version:  tc.version,
+				Host:     container.Host,
+				Port:     container.Port,
+				Username: specificUsername,
+				Password: specificPassword,
+				Database: &container.Database,
+				IsHttps:  false,
+			}
+
+			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+
+			err = mariadbModel.TestConnection(logger, nil, uuid.New())
+			assert.NoError(t, err)
+		})
+	}
+}
+
+func Test_TestConnection_DatabaseWithUnderscores_Success(t *testing.T) {
+	env := config.GetEnv()
+	container := connectToMariadbContainer(t, env.TestMariadb1011Port, tools.MariadbVersion1011)
+	defer container.DB.Close()
+
+	underscoreDbName := "test_db_name"
+
+	_, err := container.DB.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", underscoreDbName))
+	assert.NoError(t, err)
+
+	_, err = container.DB.Exec(fmt.Sprintf("CREATE DATABASE `%s`", underscoreDbName))
+	assert.NoError(t, err)
+
+	defer func() {
+		_, _ = container.DB.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", underscoreDbName))
+	}()
+
+	underscoreDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
+		container.Username, container.Password, container.Host, container.Port, underscoreDbName)
+	underscoreDB, err := sqlx.Connect("mysql", underscoreDSN)
+	assert.NoError(t, err)
+	defer underscoreDB.Close()
+
+	_, err = underscoreDB.Exec(`
+		CREATE TABLE underscore_test (
+			id INT AUTO_INCREMENT PRIMARY KEY,
+			data VARCHAR(255) NOT NULL
+		)
+	`)
+	assert.NoError(t, err)
+
+	_, err = underscoreDB.Exec(`INSERT INTO underscore_test (data) VALUES ('test1')`)
+	assert.NoError(t, err)
+
+	underscoreUsername := fmt.Sprintf("under%s", uuid.New().String()[:8])
+	underscorePassword := "underscorepass123"
+
+	_, err = underscoreDB.Exec(fmt.Sprintf(
+		"CREATE USER '%s'@'%%' IDENTIFIED BY '%s'",
+		underscoreUsername,
+		underscorePassword,
+	))
+	assert.NoError(t, err)
+
+	_, err = underscoreDB.Exec(fmt.Sprintf(
+		"GRANT SELECT, SHOW VIEW ON `%s`.* TO '%s'@'%%'",
+		underscoreDbName,
+		underscoreUsername,
+	))
+	assert.NoError(t, err)
+
+	_, err = underscoreDB.Exec("FLUSH PRIVILEGES")
+	assert.NoError(t, err)
+
+	defer dropUserSafe(underscoreDB, underscoreUsername)
+
+	mariadbModel := &MariadbDatabase{
+		Version:  tools.MariadbVersion1011,
+		Host:     container.Host,
+		Port:     container.Port,
+		Username: underscoreUsername,
+		Password: underscorePassword,
+		Database: &underscoreDbName,
+		IsHttps:  false,
+	}
+
+	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+
+	err = mariadbModel.TestConnection(logger, nil, uuid.New())
+	assert.NoError(t, err)
+}
+
+func Test_TestConnection_DatabaseWithUnderscoresAndAllPrivileges_Success(t *testing.T) {
+	env := config.GetEnv()
+	cases := []struct {
+		name    string
+		version tools.MariadbVersion
+		port    string
+	}{
+		{"MariaDB 5.5", tools.MariadbVersion55, env.TestMariadb55Port},
+		{"MariaDB 10.1", tools.MariadbVersion101, env.TestMariadb101Port},
+		{"MariaDB 10.2", tools.MariadbVersion102, env.TestMariadb102Port},
+		{"MariaDB 10.3", tools.MariadbVersion103, env.TestMariadb103Port},
+		{"MariaDB 10.4", tools.MariadbVersion104, env.TestMariadb104Port},
+		{"MariaDB 10.5", tools.MariadbVersion105, env.TestMariadb105Port},
+		{"MariaDB 10.6", tools.MariadbVersion106, env.TestMariadb106Port},
+		{"MariaDB 10.11", tools.MariadbVersion1011, env.TestMariadb1011Port},
+		{"MariaDB 11.4", tools.MariadbVersion114, env.TestMariadb114Port},
+		{"MariaDB 11.8", tools.MariadbVersion118, env.TestMariadb118Port},
+		{"MariaDB 12.0", tools.MariadbVersion120, env.TestMariadb120Port},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			container := connectToMariadbContainer(t, tc.port, tc.version)
+			defer container.DB.Close()
+
+			underscoreDbName := "test_all_db"
+
+			_, err := container.DB.Exec(
+				fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", underscoreDbName),
+			)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(fmt.Sprintf("CREATE DATABASE `%s`", underscoreDbName))
+			assert.NoError(t, err)
+
+			defer func() {
+				_, _ = container.DB.Exec(
+					fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", underscoreDbName),
+				)
+			}()
+
+			underscoreDSN := fmt.Sprintf(
+				"%s:%s@tcp(%s:%d)/%s?parseTime=true",
+				container.Username,
+				container.Password,
+				container.Host,
+				container.Port,
+				underscoreDbName,
+			)
+			underscoreDB, err := sqlx.Connect("mysql", underscoreDSN)
+			assert.NoError(t, err)
+			defer underscoreDB.Close()
+
+			_, err = underscoreDB.Exec(`
+				CREATE TABLE all_priv_test (
+					id INT AUTO_INCREMENT PRIMARY KEY,
+					data VARCHAR(255) NOT NULL
+				)
+			`)
+			assert.NoError(t, err)
+
+			_, err = underscoreDB.Exec(`INSERT INTO all_priv_test (data) VALUES ('test1')`)
+			assert.NoError(t, err)
+
+			allPrivUsername := fmt.Sprintf("allpriv%s", uuid.New().String()[:8])
+			allPrivPassword := "allprivpass123"
+
+			_, err = underscoreDB.Exec(fmt.Sprintf(
+				"CREATE USER '%s'@'%%' IDENTIFIED BY '%s'",
+				allPrivUsername,
+				allPrivPassword,
+			))
+			assert.NoError(t, err)
+
+			_, err = underscoreDB.Exec(fmt.Sprintf(
+				"GRANT ALL PRIVILEGES ON `%s`.* TO '%s'@'%%'",
+				underscoreDbName,
+				allPrivUsername,
+			))
+			assert.NoError(t, err)
+
+			_, err = underscoreDB.Exec("FLUSH PRIVILEGES")
+			assert.NoError(t, err)
+
+			defer dropUserSafe(underscoreDB, allPrivUsername)
+
+			mariadbModel := &MariadbDatabase{
+				Version:  tc.version,
+				Host:     container.Host,
+				Port:     container.Port,
+				Username: allPrivUsername,
+				Password: allPrivPassword,
+				Database: &underscoreDbName,
+				IsHttps:  false,
+			}
+
+			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+
+			err = mariadbModel.TestConnection(logger, nil, uuid.New())
+			assert.NoError(t, err)
+			assert.NotEmpty(t, mariadbModel.Privileges)
+			assert.Contains(t, mariadbModel.Privileges, "SELECT")
+			assert.Contains(t, mariadbModel.Privileges, "SHOW VIEW")
+		})
+	}
+}
+
+type MariadbContainer struct {
+	Host     string
+	Port     int
+	Username string
+	Password string
+	Database string
+	Version  tools.MariadbVersion
+	DB       *sqlx.DB
+}
+
+func connectToMariadbContainer(
+	t *testing.T,
+	port string,
+	version tools.MariadbVersion,
+) *MariadbContainer {
+	if port == "" {
+		t.Skipf("MariaDB port not configured for version %s", version)
+	}
+
+	dbName := "testdb"
+	host := config.GetEnv().TestLocalhost
+	username := "root"
+	password := "rootpassword"
+
+	portInt, err := strconv.Atoi(port)
+	assert.NoError(t, err)
+
+	dsn := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
+		username, password, host, portInt, dbName)
+
+	db, err := sqlx.Connect("mysql", dsn)
+	if err != nil {
+		t.Skipf("Failed to connect to MariaDB %s: %v", version, err)
+	}
+
+	return &MariadbContainer{
+		Host:     host,
+		Port:     portInt,
+		Username: username,
+		Password: password,
+		Database: dbName,
+		Version:  version,
+		DB:       db,
+	}
+}
+
+func createMariadbModel(container *MariadbContainer) *MariadbDatabase {
+	return &MariadbDatabase{
+		Version:  container.Version,
+		Host:     container.Host,
+		Port:     container.Port,
+		Username: container.Username,
+		Password: container.Password,
+		Database: &container.Database,
+		IsHttps:  false,
+	}
+}
+
+func dropUserSafe(db *sqlx.DB, username string) {
+	_, _ = db.Exec(fmt.Sprintf("DROP USER '%s'@'%%'", username))
+}

backend/internal/features/databases/databases/mariadb/readonly_user_test.go

@@ -1,387 +0,0 @@
-package mariadb
-
-import (
-	"context"
-	"fmt"
-	"log/slog"
-	"os"
-	"strconv"
-	"strings"
-	"testing"
-
-	_ "github.com/go-sql-driver/mysql"
-	"github.com/google/uuid"
-	"github.com/jmoiron/sqlx"
-	"github.com/stretchr/testify/assert"
-
-	"databasus-backend/internal/config"
-	"databasus-backend/internal/util/tools"
-)
-
-func Test_IsUserReadOnly_AdminUser_ReturnsFalse(t *testing.T) {
-	env := config.GetEnv()
-	cases := []struct {
-		name    string
-		version tools.MariadbVersion
-		port    string
-	}{
-		{"MariaDB 5.5", tools.MariadbVersion55, env.TestMariadb55Port},
-		{"MariaDB 10.1", tools.MariadbVersion101, env.TestMariadb101Port},
-		{"MariaDB 10.2", tools.MariadbVersion102, env.TestMariadb102Port},
-		{"MariaDB 10.3", tools.MariadbVersion103, env.TestMariadb103Port},
-		{"MariaDB 10.4", tools.MariadbVersion104, env.TestMariadb104Port},
-		{"MariaDB 10.5", tools.MariadbVersion105, env.TestMariadb105Port},
-		{"MariaDB 10.6", tools.MariadbVersion106, env.TestMariadb106Port},
-		{"MariaDB 10.11", tools.MariadbVersion1011, env.TestMariadb1011Port},
-		{"MariaDB 11.4", tools.MariadbVersion114, env.TestMariadb114Port},
-		{"MariaDB 11.8", tools.MariadbVersion118, env.TestMariadb118Port},
-		{"MariaDB 12.0", tools.MariadbVersion120, env.TestMariadb120Port},
-	}
-
-	for _, tc := range cases {
-		t.Run(tc.name, func(t *testing.T) {
-			t.Parallel()
-
-			container := connectToMariadbContainer(t, tc.port, tc.version)
-			defer container.DB.Close()
-
-			mariadbModel := createMariadbModel(container)
-			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
-			ctx := context.Background()
-
-			isReadOnly, err := mariadbModel.IsUserReadOnly(ctx, logger, nil, uuid.New())
-			assert.NoError(t, err)
-			assert.False(t, isReadOnly, "Root user should not be read-only")
-		})
-	}
-}
-
-func Test_CreateReadOnlyUser_UserCanReadButNotWrite(t *testing.T) {
-	env := config.GetEnv()
-	cases := []struct {
-		name    string
-		version tools.MariadbVersion
-		port    string
-	}{
-		{"MariaDB 5.5", tools.MariadbVersion55, env.TestMariadb55Port},
-		{"MariaDB 10.1", tools.MariadbVersion101, env.TestMariadb101Port},
-		{"MariaDB 10.2", tools.MariadbVersion102, env.TestMariadb102Port},
-		{"MariaDB 10.3", tools.MariadbVersion103, env.TestMariadb103Port},
-		{"MariaDB 10.4", tools.MariadbVersion104, env.TestMariadb104Port},
-		{"MariaDB 10.5", tools.MariadbVersion105, env.TestMariadb105Port},
-		{"MariaDB 10.6", tools.MariadbVersion106, env.TestMariadb106Port},
-		{"MariaDB 10.11", tools.MariadbVersion1011, env.TestMariadb1011Port},
-		{"MariaDB 11.4", tools.MariadbVersion114, env.TestMariadb114Port},
-		{"MariaDB 11.8", tools.MariadbVersion118, env.TestMariadb118Port},
-		{"MariaDB 12.0", tools.MariadbVersion120, env.TestMariadb120Port},
-	}
-
-	for _, tc := range cases {
-		t.Run(tc.name, func(t *testing.T) {
-			t.Parallel()
-
-			container := connectToMariadbContainer(t, tc.port, tc.version)
-			defer container.DB.Close()
-
-			_, err := container.DB.Exec(`DROP TABLE IF EXISTS readonly_test`)
-			assert.NoError(t, err)
-			_, err = container.DB.Exec(`DROP TABLE IF EXISTS hack_table`)
-			assert.NoError(t, err)
-			_, err = container.DB.Exec(`DROP TABLE IF EXISTS future_table`)
-			assert.NoError(t, err)
-
-			_, err = container.DB.Exec(`
-				CREATE TABLE readonly_test (
-					id INT AUTO_INCREMENT PRIMARY KEY,
-					data VARCHAR(255) NOT NULL
-				)
-			`)
-			assert.NoError(t, err)
-
-			_, err = container.DB.Exec(
-				`INSERT INTO readonly_test (data) VALUES ('test1'), ('test2')`,
-			)
-			assert.NoError(t, err)
-
-			mariadbModel := createMariadbModel(container)
-			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
-			ctx := context.Background()
-
-			username, password, err := mariadbModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
-			assert.NoError(t, err)
-			assert.NotEmpty(t, username)
-			assert.NotEmpty(t, password)
-			assert.True(t, strings.HasPrefix(username, "pgs-"))
-
-			if err != nil {
-				return
-			}
-
-			readOnlyModel := &MariadbDatabase{
-				Version:  mariadbModel.Version,
-				Host:     mariadbModel.Host,
-				Port:     mariadbModel.Port,
-				Username: username,
-				Password: password,
-				Database: mariadbModel.Database,
-				IsHttps:  false,
-			}
-
-			isReadOnly, err := readOnlyModel.IsUserReadOnly(ctx, logger, nil, uuid.New())
-			assert.NoError(t, err)
-			assert.True(t, isReadOnly, "Created user should be read-only")
-
-			readOnlyDSN := fmt.Sprintf(
-				"%s:%s@tcp(%s:%d)/%s?parseTime=true",
-				username,
-				password,
-				container.Host,
-				container.Port,
-				container.Database,
-			)
-			readOnlyConn, err := sqlx.Connect("mysql", readOnlyDSN)
-			assert.NoError(t, err)
-			defer readOnlyConn.Close()
-
-			var count int
-			err = readOnlyConn.Get(&count, "SELECT COUNT(*) FROM readonly_test")
-			assert.NoError(t, err)
-			assert.Equal(t, 2, count)
-
-			_, err = readOnlyConn.Exec("INSERT INTO readonly_test (data) VALUES ('should-fail')")
-			assert.Error(t, err)
-			assert.Contains(t, strings.ToLower(err.Error()), "denied")
-
-			_, err = readOnlyConn.Exec("UPDATE readonly_test SET data = 'hacked' WHERE id = 1")
-			assert.Error(t, err)
-			assert.Contains(t, strings.ToLower(err.Error()), "denied")
-
-			_, err = readOnlyConn.Exec("DELETE FROM readonly_test WHERE id = 1")
-			assert.Error(t, err)
-			assert.Contains(t, strings.ToLower(err.Error()), "denied")
-
-			_, err = readOnlyConn.Exec("CREATE TABLE hack_table (id INT)")
-			assert.Error(t, err)
-			assert.Contains(t, strings.ToLower(err.Error()), "denied")
-
-			dropUserSafe(container.DB, username)
-		})
-	}
-}
-
-func Test_ReadOnlyUser_FutureTables_NoSelectPermission(t *testing.T) {
-	env := config.GetEnv()
-	container := connectToMariadbContainer(t, env.TestMariadb1011Port, tools.MariadbVersion1011)
-	defer container.DB.Close()
-
-	mariadbModel := createMariadbModel(container)
-	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
-	ctx := context.Background()
-
-	username, password, err := mariadbModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
-	assert.NoError(t, err)
-
-	_, err = container.DB.Exec(`DROP TABLE IF EXISTS future_table`)
-	assert.NoError(t, err)
-	_, err = container.DB.Exec(`
-		CREATE TABLE future_table (
-			id INT AUTO_INCREMENT PRIMARY KEY,
-			data VARCHAR(255) NOT NULL
-		)
-	`)
-	assert.NoError(t, err)
-	_, err = container.DB.Exec(`INSERT INTO future_table (data) VALUES ('future_data')`)
-	assert.NoError(t, err)
-
-	readOnlyDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
-		username, password, container.Host, container.Port, container.Database)
-	readOnlyConn, err := sqlx.Connect("mysql", readOnlyDSN)
-	assert.NoError(t, err)
-	defer readOnlyConn.Close()
-
-	var data string
-	err = readOnlyConn.Get(&data, "SELECT data FROM future_table LIMIT 1")
-	assert.NoError(t, err)
-	assert.Equal(t, "future_data", data)
-
-	dropUserSafe(container.DB, username)
-}
-
-func Test_CreateReadOnlyUser_DatabaseNameWithDash_Success(t *testing.T) {
-	env := config.GetEnv()
-	container := connectToMariadbContainer(t, env.TestMariadb1011Port, tools.MariadbVersion1011)
-	defer container.DB.Close()
-
-	dashDbName := "test-db-with-dash"
-
-	_, err := container.DB.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", dashDbName))
-	assert.NoError(t, err)
-
-	_, err = container.DB.Exec(fmt.Sprintf("CREATE DATABASE `%s`", dashDbName))
-	assert.NoError(t, err)
-
-	defer func() {
-		_, _ = container.DB.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", dashDbName))
-	}()
-
-	dashDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
-		container.Username, container.Password, container.Host, container.Port, dashDbName)
-	dashDB, err := sqlx.Connect("mysql", dashDSN)
-	assert.NoError(t, err)
-	defer dashDB.Close()
-
-	_, err = dashDB.Exec(`
-		CREATE TABLE dash_test (
-			id INT AUTO_INCREMENT PRIMARY KEY,
-			data VARCHAR(255) NOT NULL
-		)
-	`)
-	assert.NoError(t, err)
-
-	_, err = dashDB.Exec(`INSERT INTO dash_test (data) VALUES ('test1'), ('test2')`)
-	assert.NoError(t, err)
-
-	mariadbModel := &MariadbDatabase{
-		Version:  tools.MariadbVersion1011,
-		Host:     container.Host,
-		Port:     container.Port,
-		Username: container.Username,
-		Password: container.Password,
-		Database: &dashDbName,
-		IsHttps:  false,
-	}
-
-	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
-	ctx := context.Background()
-
-	username, password, err := mariadbModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
-	assert.NoError(t, err)
-	assert.NotEmpty(t, username)
-	assert.NotEmpty(t, password)
-	assert.True(t, strings.HasPrefix(username, "pgs-"))
-
-	readOnlyDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
-		username, password, container.Host, container.Port, dashDbName)
-	readOnlyConn, err := sqlx.Connect("mysql", readOnlyDSN)
-	assert.NoError(t, err)
-	defer readOnlyConn.Close()
-
-	var count int
-	err = readOnlyConn.Get(&count, "SELECT COUNT(*) FROM dash_test")
-	assert.NoError(t, err)
-	assert.Equal(t, 2, count)
-
-	_, err = readOnlyConn.Exec("INSERT INTO dash_test (data) VALUES ('should-fail')")
-	assert.Error(t, err)
-	assert.Contains(t, strings.ToLower(err.Error()), "denied")
-
-	dropUserSafe(dashDB, username)
-}
-
-func Test_ReadOnlyUser_CannotDropOrAlterTables(t *testing.T) {
-	env := config.GetEnv()
-	container := connectToMariadbContainer(t, env.TestMariadb1011Port, tools.MariadbVersion1011)
-	defer container.DB.Close()
-
-	_, err := container.DB.Exec(`DROP TABLE IF EXISTS drop_test`)
-	assert.NoError(t, err)
-	_, err = container.DB.Exec(`
-		CREATE TABLE drop_test (
-			id INT AUTO_INCREMENT PRIMARY KEY,
-			data VARCHAR(255) NOT NULL
-		)
-	`)
-	assert.NoError(t, err)
-	_, err = container.DB.Exec(`INSERT INTO drop_test (data) VALUES ('test1')`)
-	assert.NoError(t, err)
-
-	mariadbModel := createMariadbModel(container)
-	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
-	ctx := context.Background()
-
-	username, password, err := mariadbModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
-	assert.NoError(t, err)
-
-	readOnlyDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
-		username, password, container.Host, container.Port, container.Database)
-	readOnlyConn, err := sqlx.Connect("mysql", readOnlyDSN)
-	assert.NoError(t, err)
-	defer readOnlyConn.Close()
-
-	_, err = readOnlyConn.Exec("DROP TABLE drop_test")
-	assert.Error(t, err)
-	assert.Contains(t, strings.ToLower(err.Error()), "denied")
-
-	_, err = readOnlyConn.Exec("ALTER TABLE drop_test ADD COLUMN new_col VARCHAR(100)")
-	assert.Error(t, err)
-	assert.Contains(t, strings.ToLower(err.Error()), "denied")
-
-	_, err = readOnlyConn.Exec("TRUNCATE TABLE drop_test")
-	assert.Error(t, err)
-	assert.Contains(t, strings.ToLower(err.Error()), "denied")
-
-	dropUserSafe(container.DB, username)
-}
-
-type MariadbContainer struct {
-	Host     string
-	Port     int
-	Username string
-	Password string
-	Database string
-	Version  tools.MariadbVersion
-	DB       *sqlx.DB
-}
-
-func connectToMariadbContainer(
-	t *testing.T,
-	port string,
-	version tools.MariadbVersion,
-) *MariadbContainer {
-	if port == "" {
-		t.Skipf("MariaDB port not configured for version %s", version)
-	}
-
-	dbName := "testdb"
-	host := "127.0.0.1"
-	username := "root"
-	password := "rootpassword"
-
-	portInt, err := strconv.Atoi(port)
-	assert.NoError(t, err)
-
-	dsn := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
-		username, password, host, portInt, dbName)
-
-	db, err := sqlx.Connect("mysql", dsn)
-	if err != nil {
-		t.Skipf("Failed to connect to MariaDB %s: %v", version, err)
-	}
-
-	return &MariadbContainer{
-		Host:     host,
-		Port:     portInt,
-		Username: username,
-		Password: password,
-		Database: dbName,
-		Version:  version,
-		DB:       db,
-	}
-}
-
-func createMariadbModel(container *MariadbContainer) *MariadbDatabase {
-	return &MariadbDatabase{
-		Version:  container.Version,
-		Host:     container.Host,
-		Port:     container.Port,
-		Username: container.Username,
-		Password: container.Password,
-		Database: &container.Database,
-		IsHttps:  false,
-	}
-}
-
-func dropUserSafe(db *sqlx.DB, username string) {
-	// MariaDB 5.5 doesn't support DROP USER IF EXISTS, so we ignore errors
-	_, _ = db.Exec(fmt.Sprintf("DROP USER '%s'@'%%'", username))
-}

backend/internal/features/databases/databases/mongodb/model.go

@@ -5,7 +5,9 @@ import (
 	"errors"
 	"fmt"
 	"log/slog"
+	"net/url"
 	"regexp"
+	"strings"
 	"time"
 
 	"databasus-backend/internal/util/encryption"
@@ -95,6 +97,16 @@ func (m *MongodbDatabase) TestConnection(
 	}
 	m.Version = detectedVersion
 
+	if err := checkBackupPermissions(
+		ctx,
+		client,
+		m.Username,
+		m.Database,
+		m.AuthDatabase,
+	); err != nil {
+		return err
+	}
+
 	return nil
 }
 
@@ -134,14 +146,11 @@ func (m *MongodbDatabase) EncryptSensitiveFields(
 	return nil
 }
 
-func (m *MongodbDatabase) PopulateVersionIfEmpty(
+func (m *MongodbDatabase) PopulateDbData(
 	logger *slog.Logger,
 	encryptor encryption.FieldEncryptor,
 	databaseID uuid.UUID,
 ) error {
-	if m.Version != "" {
-		return nil
-	}
 	return m.PopulateVersion(logger, encryptor, databaseID)
 }
 
@@ -185,10 +194,10 @@ func (m *MongodbDatabase) IsUserReadOnly(
 	logger *slog.Logger,
 	encryptor encryption.FieldEncryptor,
 	databaseID uuid.UUID,
-) (bool, error) {
+) (bool, []string, error) {
 	password, err := decryptPasswordIfNeeded(m.Password, encryptor, databaseID)
 	if err != nil {
-		return false, fmt.Errorf("failed to decrypt password: %w", err)
+		return false, nil, fmt.Errorf("failed to decrypt password: %w", err)
 	}
 
 	uri := m.buildConnectionURI(password)
@@ -196,7 +205,7 @@ func (m *MongodbDatabase) IsUserReadOnly(
 	clientOptions := options.Client().ApplyURI(uri)
 	client, err := mongo.Connect(ctx, clientOptions)
 	if err != nil {
-		return false, fmt.Errorf("failed to connect to database: %w", err)
+		return false, nil, fmt.Errorf("failed to connect to database: %w", err)
 	}
 	defer func() {
 		if disconnectErr := client.Disconnect(ctx); disconnectErr != nil {
@@ -218,44 +227,153 @@ func (m *MongodbDatabase) IsUserReadOnly(
 		}},
 	}).Decode(&result)
 	if err != nil {
-		return false, fmt.Errorf("failed to get user info: %w", err)
+		return false, nil, fmt.Errorf("failed to get user info: %w", err)
 	}
 
-	writeRoles := []string{
-		"readWrite", "readWriteAnyDatabase", "dbAdmin", "dbAdminAnyDatabase",
-		"userAdmin", "userAdminAnyDatabase", "clusterAdmin", "root",
-		"dbOwner", "backup", "restore",
+	writeRoles := map[string]bool{
+		"readWrite":            true,
+		"readWriteAnyDatabase": true,
+		"dbAdmin":              true,
+		"dbAdminAnyDatabase":   true,
+		"userAdmin":            true,
+		"userAdminAnyDatabase": true,
+		"clusterAdmin":         true,
+		"clusterManager":       true,
+		"hostManager":          true,
+		"root":                 true,
+		"dbOwner":              true,
+		"restore":              true,
+		"__system":             true,
 	}
 
+	// Roles that are read-only for our backup purposes
+	// The "backup" role has insert/update on mms.backup collection but is needed for mongodump
+	readOnlyRoles := map[string]bool{
+		"read":   true,
+		"backup": true,
+	}
+
+	writeActions := map[string]bool{
+		"insert":             true,
+		"update":             true,
+		"remove":             true,
+		"createCollection":   true,
+		"dropCollection":     true,
+		"createIndex":        true,
+		"dropIndex":          true,
+		"convertToCapped":    true,
+		"dropDatabase":       true,
+		"renameCollection":   true,
+		"createUser":         true,
+		"dropUser":           true,
+		"updateUser":         true,
+		"grantRole":          true,
+		"revokeRole":         true,
+		"dropRole":           true,
+		"createRole":         true,
+		"updateRole":         true,
+		"enableSharding":     true,
+		"shardCollection":    true,
+		"addShard":           true,
+		"removeShard":        true,
+		"shutdown":           true,
+		"replSetReconfig":    true,
+		"replSetStateChange": true,
+	}
+
+	var detectedRoles []string
+
 	users, ok := result["users"].(bson.A)
 	if !ok || len(users) == 0 {
-		return true, nil
+		return true, detectedRoles, nil
 	}
 
 	user, ok := users[0].(bson.M)
 	if !ok {
-		return true, nil
+		return true, detectedRoles, nil
 	}
 
 	roles, ok := user["roles"].(bson.A)
 	if !ok {
-		return true, nil
+		return true, detectedRoles, nil
 	}
 
+	// Collect all role names and check for write roles
 	for _, roleDoc := range roles {
 		role, ok := roleDoc.(bson.M)
 		if !ok {
 			continue
 		}
 		roleName, _ := role["role"].(string)
-		for _, writeRole := range writeRoles {
-			if roleName == writeRole {
-				return false, nil
+		if roleName != "" {
+			detectedRoles = append(detectedRoles, roleName)
+		}
+	}
+
+	// Check if any detected role is a write role
+	for _, roleName := range detectedRoles {
+		if writeRoles[roleName] {
+			return false, detectedRoles, nil
+		}
+	}
+
+	// If all roles are known read-only roles (read, backup), skip inherited privilege check
+	allRolesReadOnly := true
+	for _, roleName := range detectedRoles {
+		if !readOnlyRoles[roleName] {
+			allRolesReadOnly = false
+			break
+		}
+	}
+	if allRolesReadOnly && len(detectedRoles) > 0 {
+		return true, detectedRoles, nil
+	}
+
+	// Check inherited privileges for custom roles
+	var privResult bson.M
+	err = adminDB.RunCommand(ctx, bson.D{
+		{Key: "usersInfo", Value: bson.D{
+			{Key: "user", Value: m.Username},
+			{Key: "db", Value: authDB},
+		}},
+		{Key: "showPrivileges", Value: true},
+	}).Decode(&privResult)
+	if err != nil {
+		return false, nil, fmt.Errorf("failed to get user privileges: %w", err)
+	}
+
+	privUsers, ok := privResult["users"].(bson.A)
+	if !ok || len(privUsers) == 0 {
+		return true, detectedRoles, nil
+	}
+
+	privUser, ok := privUsers[0].(bson.M)
+	if !ok {
+		return true, detectedRoles, nil
+	}
+
+	// Check inheritedPrivileges for write actions
+	inheritedPrivileges, ok := privUser["inheritedPrivileges"].(bson.A)
+	if ok {
+		for _, privDoc := range inheritedPrivileges {
+			priv, ok := privDoc.(bson.M)
+			if !ok {
+				continue
+			}
+			actions, ok := priv["actions"].(bson.A)
+			if !ok {
+				continue
+			}
+			for _, action := range actions {
+				actionStr, ok := action.(string)
+				if ok && writeActions[actionStr] {
+					return false, detectedRoles, nil
+				}
 			}
 		}
 	}
 
-	return true, nil
+	return true, detectedRoles, nil
 }
 
 func (m *MongodbDatabase) CreateReadOnlyUser(
@@ -290,7 +408,7 @@ func (m *MongodbDatabase) CreateReadOnlyUser(
 	maxRetries := 3
 	for attempt := range maxRetries {
 		newUsername := fmt.Sprintf("databasus-%s", uuid.New().String()[:8])
-		newPassword := uuid.New().String()
+		newPassword := encryption.GenerateComplexPassword()
 
 		adminDB := client.Database(authDB)
 		err = adminDB.RunCommand(ctx, bson.D{
@@ -332,20 +450,20 @@ func (m *MongodbDatabase) buildConnectionURI(password string) string {
 		authDB = "admin"
 	}
 
-	tlsOption := "false"
+	tlsParams := ""
 	if m.IsHttps {
-		tlsOption = "true"
+		tlsParams = "&tls=true&tlsInsecure=true"
 	}
 
 	return fmt.Sprintf(
-		"mongodb://%s:%s@%s:%d/%s?authSource=%s&tls=%s&connectTimeoutMS=15000",
-		m.Username,
-		password,
+		"mongodb://%s:%s@%s:%d/%s?authSource=%s&connectTimeoutMS=15000%s",
+		url.QueryEscape(m.Username),
+		url.QueryEscape(password),
 		m.Host,
 		m.Port,
 		m.Database,
 		authDB,
-		tlsOption,
+		tlsParams,
 	)
 }
 
@@ -356,19 +474,19 @@ func (m *MongodbDatabase) BuildMongodumpURI(password string) string {
 		authDB = "admin"
 	}
 
-	tlsOption := "false"
+	tlsParams := ""
 	if m.IsHttps {
-		tlsOption = "true"
+		tlsParams = "&tls=true&tlsInsecure=true"
 	}
 
 	return fmt.Sprintf(
-		"mongodb://%s:%s@%s:%d/?authSource=%s&tls=%s&connectTimeoutMS=15000",
-		m.Username,
-		password,
+		"mongodb://%s:%s@%s:%d/?authSource=%s&connectTimeoutMS=15000%s",
+		url.QueryEscape(m.Username),
+		url.QueryEscape(password),
 		m.Host,
 		m.Port,
 		authDB,
-		tlsOption,
+		tlsParams,
 	)
 }
 
@@ -413,6 +531,128 @@ func detectMongodbVersion(ctx context.Context, client *mongo.Client) (tools.Mong
 	}
 }
 
+// checkBackupPermissions verifies the user has sufficient privileges for mongodump backup.
+// Required: 'read' role on target database OR 'backup' role on admin OR 'readAnyDatabase' role.
+func checkBackupPermissions(
+	ctx context.Context,
+	client *mongo.Client,
+	username, database, authDatabase string,
+) error {
+	authDB := authDatabase
+	if authDB == "" {
+		authDB = "admin"
+	}
+
+	adminDB := client.Database(authDB)
+	var result bson.M
+	err := adminDB.RunCommand(ctx, bson.D{
+		{Key: "usersInfo", Value: bson.D{
+			{Key: "user", Value: username},
+			{Key: "db", Value: authDB},
+		}},
+		{Key: "showPrivileges", Value: true},
+	}).Decode(&result)
+	if err != nil {
+		return fmt.Errorf("failed to get user info: %w", err)
+	}
+
+	users, ok := result["users"].(bson.A)
+	if !ok || len(users) == 0 {
+		return errors.New("insufficient permissions for backup. User not found")
+	}
+
+	user, ok := users[0].(bson.M)
+	if !ok {
+		return errors.New("insufficient permissions for backup. Could not parse user info")
+	}
+
+	// Check roles for backup permissions
+	roles, ok := user["roles"].(bson.A)
+	if !ok {
+		return errors.New("insufficient permissions for backup. No roles assigned")
+	}
+
+	backupRoles := map[string]bool{
+		"backup":               true,
+		"root":                 true,
+		"readAnyDatabase":      true,
+		"dbOwner":              true,
+		"__system":             true,
+		"clusterAdmin":         true,
+		"readWriteAnyDatabase": true,
+	}
+
+	var userRoles []string
+	hasBackupRole := false
+	hasReadOnTargetDB := false
+
+	for _, roleDoc := range roles {
+		role, ok := roleDoc.(bson.M)
+		if !ok {
+			continue
+		}
+		roleName, _ := role["role"].(string)
+		roleDB, _ := role["db"].(string)
+
+		if roleName != "" {
+			userRoles = append(userRoles, roleName)
+		}
+
+		if backupRoles[roleName] {
+			hasBackupRole = true
+		}
+
+		if roleName == "read" && (roleDB == database || roleDB == "") {
+			hasReadOnTargetDB = true
+		}
+		if roleName == "readWrite" && (roleDB == database || roleDB == "") {
+			hasReadOnTargetDB = true
+		}
+	}
+
+	if hasBackupRole || hasReadOnTargetDB {
+		return nil
+	}
+
+	// Check inherited privileges for 'find' action on target database
+	inheritedPrivileges, ok := user["inheritedPrivileges"].(bson.A)
+	if ok {
+		for _, privDoc := range inheritedPrivileges {
+			priv, ok := privDoc.(bson.M)
+			if !ok {
+				continue
+			}
+			resource, ok := priv["resource"].(bson.M)
+			if !ok {
+				continue
+			}
+
+			resourceDB, _ := resource["db"].(string)
+			resourceCluster, _ := resource["cluster"].(bool)
+
+			isTargetDB := resourceDB == database || resourceDB == "" || resourceCluster
+
+			actions, ok := priv["actions"].(bson.A)
+			if !ok {
+				continue
+			}
+
+			for _, action := range actions {
+				actionStr, ok := action.(string)
+				if ok && actionStr == "find" && isTargetDB {
+					return nil
+				}
+			}
+		}
+	}
+
+	return fmt.Errorf(
+		"insufficient permissions for backup. Current roles: %s. Required: 'read' role on database '%s' OR 'backup' role on admin OR 'readAnyDatabase' role",
+		strings.Join(userRoles, ", "),
+		database,
+	)
+}
+
 func decryptPasswordIfNeeded(
 	password string,
 	encryptor encryption.FieldEncryptor,

backend/internal/features/databases/databases/mongodb/model_test.go

@@ -4,10 +4,12 @@ import (
 	"context"
 	"fmt"
 	"log/slog"
+	"net/url"
 	"os"
 	"strconv"
 	"strings"
 	"testing"
+	"time"
 
 	"github.com/google/uuid"
 	"github.com/stretchr/testify/assert"
@@ -19,6 +21,138 @@ import (
 	"databasus-backend/internal/util/tools"
 )
 
+func Test_TestConnection_InsufficientPermissions_ReturnsError(t *testing.T) {
+	env := config.GetEnv()
+	cases := []struct {
+		name    string
+		version tools.MongodbVersion
+		port    string
+	}{
+		{"MongoDB 4.0", tools.MongodbVersion4, env.TestMongodb40Port},
+		{"MongoDB 4.2", tools.MongodbVersion4, env.TestMongodb42Port},
+		{"MongoDB 4.4", tools.MongodbVersion4, env.TestMongodb44Port},
+		{"MongoDB 5.0", tools.MongodbVersion5, env.TestMongodb50Port},
+		{"MongoDB 6.0", tools.MongodbVersion6, env.TestMongodb60Port},
+		{"MongoDB 7.0", tools.MongodbVersion7, env.TestMongodb70Port},
+		{"MongoDB 8.2", tools.MongodbVersion8, env.TestMongodb82Port},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			container := connectToMongodbContainer(t, tc.port, tc.version)
+			defer container.Client.Disconnect(context.Background())
+
+			ctx := context.Background()
+			db := container.Client.Database(container.Database)
+
+			_ = db.Collection("permission_test").Drop(ctx)
+			_, err := db.Collection("permission_test").InsertOne(ctx, bson.M{"data": "test1"})
+			assert.NoError(t, err)
+
+			limitedUsername := fmt.Sprintf("limited_%s", uuid.New().String()[:8])
+			limitedPassword := "limitedpassword123"
+
+			adminDB := container.Client.Database(container.AuthDatabase)
+			err = adminDB.RunCommand(ctx, bson.D{
+				{Key: "createUser", Value: limitedUsername},
+				{Key: "pwd", Value: limitedPassword},
+				{Key: "roles", Value: bson.A{}},
+			}).Err()
+			assert.NoError(t, err)
+
+			defer dropUserSafe(container.Client, limitedUsername, container.AuthDatabase)
+
+			mongodbModel := &MongodbDatabase{
+				Version:      tc.version,
+				Host:         container.Host,
+				Port:         container.Port,
+				Username:     limitedUsername,
+				Password:     limitedPassword,
+				Database:     container.Database,
+				AuthDatabase: container.AuthDatabase,
+				IsHttps:      false,
+				CpuCount:     1,
+			}
+
+			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+
+			err = mongodbModel.TestConnection(logger, nil, uuid.New())
+			assert.Error(t, err)
+			assert.Contains(t, err.Error(), "insufficient permissions")
+		})
+	}
+}
+
+func Test_TestConnection_SufficientPermissions_Success(t *testing.T) {
+	env := config.GetEnv()
+	cases := []struct {
+		name    string
+		version tools.MongodbVersion
+		port    string
+	}{
+		{"MongoDB 4.0", tools.MongodbVersion4, env.TestMongodb40Port},
+		{"MongoDB 4.2", tools.MongodbVersion4, env.TestMongodb42Port},
+		{"MongoDB 4.4", tools.MongodbVersion4, env.TestMongodb44Port},
+		{"MongoDB 5.0", tools.MongodbVersion5, env.TestMongodb50Port},
+		{"MongoDB 6.0", tools.MongodbVersion6, env.TestMongodb60Port},
+		{"MongoDB 7.0", tools.MongodbVersion7, env.TestMongodb70Port},
+		{"MongoDB 8.2", tools.MongodbVersion8, env.TestMongodb82Port},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			container := connectToMongodbContainer(t, tc.port, tc.version)
+			defer container.Client.Disconnect(context.Background())
+
+			ctx := context.Background()
+			db := container.Client.Database(container.Database)
+
+			_ = db.Collection("backup_test").Drop(ctx)
+			_, err := db.Collection("backup_test").InsertOne(ctx, bson.M{"data": "test1"})
+			assert.NoError(t, err)
+
+			backupUsername := fmt.Sprintf("backup_%s", uuid.New().String()[:8])
+			backupPassword := "backuppassword123"
+
+			adminDB := container.Client.Database(container.AuthDatabase)
+			err = adminDB.RunCommand(ctx, bson.D{
+				{Key: "createUser", Value: backupUsername},
+				{Key: "pwd", Value: backupPassword},
+				{Key: "roles", Value: bson.A{
+					bson.D{
+						{Key: "role", Value: "read"},
+						{Key: "db", Value: container.Database},
+					},
+				}},
+			}).Err()
+			assert.NoError(t, err)
+
+			defer dropUserSafe(container.Client, backupUsername, container.AuthDatabase)
+
+			mongodbModel := &MongodbDatabase{
+				Version:      tc.version,
+				Host:         container.Host,
+				Port:         container.Port,
+				Username:     backupUsername,
+				Password:     backupPassword,
+				Database:     container.Database,
+				AuthDatabase: container.AuthDatabase,
+				IsHttps:      false,
+				CpuCount:     1,
+			}
+
+			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+
+			err = mongodbModel.TestConnection(logger, nil, uuid.New())
+			assert.NoError(t, err)
+		})
+	}
+}
+
 func Test_IsUserReadOnly_AdminUser_ReturnsFalse(t *testing.T) {
 	env := config.GetEnv()
 	cases := []struct {
@@ -46,13 +180,52 @@ func Test_IsUserReadOnly_AdminUser_ReturnsFalse(t *testing.T) {
 			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
 			ctx := context.Background()
 
-			isReadOnly, err := mongodbModel.IsUserReadOnly(ctx, logger, nil, uuid.New())
+			isReadOnly, roles, err := mongodbModel.IsUserReadOnly(ctx, logger, nil, uuid.New())
 			assert.NoError(t, err)
 			assert.False(t, isReadOnly, "Root user should not be read-only")
+			assert.NotEmpty(t, roles, "Root user should have roles")
 		})
 	}
 }
 
+func Test_IsUserReadOnly_ReadOnlyUser_ReturnsTrue(t *testing.T) {
+	env := config.GetEnv()
+	container := connectToMongodbContainer(t, env.TestMongodb70Port, tools.MongodbVersion7)
+	defer container.Client.Disconnect(context.Background())
+
+	ctx := context.Background()
+	db := container.Client.Database(container.Database)
+
+	_ = db.Collection("readonly_check_test").Drop(ctx)
+	_, err := db.Collection("readonly_check_test").InsertOne(ctx, bson.M{"data": "test1"})
+	assert.NoError(t, err)
+
+	mongodbModel := createMongodbModel(container)
+	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+
+	username, password, err := mongodbModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
+	assert.NoError(t, err)
+
+	readOnlyModel := &MongodbDatabase{
+		Version:      mongodbModel.Version,
+		Host:         mongodbModel.Host,
+		Port:         mongodbModel.Port,
+		Username:     username,
+		Password:     password,
+		Database:     mongodbModel.Database,
+		AuthDatabase: mongodbModel.AuthDatabase,
+		IsHttps:      false,
+		CpuCount:     1,
+	}
+
+	isReadOnly, roles, err := readOnlyModel.IsUserReadOnly(ctx, logger, nil, uuid.New())
+	assert.NoError(t, err)
+	assert.True(t, isReadOnly, "Read-only user should be read-only")
+	assert.NotEmpty(t, roles, "Read-only user should have roles (read, backup)")
+
+	dropUserSafe(container.Client, username, container.AuthDatabase)
+}
+
 func Test_CreateReadOnlyUser_UserCanReadButNotWrite(t *testing.T) {
 	env := config.GetEnv()
 	cases := []struct {
@@ -225,7 +398,7 @@ func connectToMongodbContainer(
 	}
 
 	dbName := "testdb"
-	host := "127.0.0.1"
+	host := config.GetEnv().TestLocalhost
 	username := "root"
 	password := "rootpassword"
 	authDatabase := "admin"
@@ -234,11 +407,18 @@ func connectToMongodbContainer(
 	assert.NoError(t, err)
 
 	uri := fmt.Sprintf(
-		"mongodb://%s:%s@%s:%d/%s?authSource=%s",
-		username, password, host, portInt, dbName, authDatabase,
+		"mongodb://%s:%s@%s:%d/%s?authSource=%s&serverSelectionTimeoutMS=5000&connectTimeoutMS=5000",
+		username,
+		password,
+		host,
+		portInt,
+		dbName,
+		authDatabase,
 	)
 
-	ctx := context.Background()
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
 	clientOptions := options.Client().ApplyURI(uri)
 	client, err := mongo.Connect(ctx, clientOptions)
 	if err != nil {
@@ -271,6 +451,7 @@ func createMongodbModel(container *MongodbContainer) *MongodbDatabase {
 		Database:     container.Database,
 		AuthDatabase: container.AuthDatabase,
 		IsHttps:      false,
+		CpuCount:     1,
 	}
 }
 
@@ -281,7 +462,8 @@ func connectWithCredentials(
 ) *mongo.Client {
 	uri := fmt.Sprintf(
 		"mongodb://%s:%s@%s:%d/%s?authSource=%s",
-		username, password, container.Host, container.Port,
+		url.QueryEscape(username), url.QueryEscape(password),
+		container.Host, container.Port,
 		container.Database, container.AuthDatabase,
 	)
 

backend/internal/features/databases/databases/mysql/model.go

@@ -2,17 +2,20 @@ package mysql
 
 import (
 	"context"
+	"crypto/tls"
 	"database/sql"
 	"errors"
 	"fmt"
 	"log/slog"
 	"regexp"
+	"sort"
+	"strings"
 	"time"
 
 	"databasus-backend/internal/util/encryption"
 	"databasus-backend/internal/util/tools"
 
-	_ "github.com/go-sql-driver/mysql"
+	"github.com/go-sql-driver/mysql"
 	"github.com/google/uuid"
 )
 
@@ -22,12 +25,13 @@ type MysqlDatabase struct {
 
 	Version tools.MysqlVersion `json:"version" gorm:"type:text;not null"`
 
-	Host     string  `json:"host"     gorm:"type:text;not null"`
-	Port     int     `json:"port"     gorm:"type:int;not null"`
-	Username string  `json:"username" gorm:"type:text;not null"`
-	Password string  `json:"password" gorm:"type:text;not null"`
-	Database *string `json:"database" gorm:"type:text"`
-	IsHttps  bool    `json:"isHttps"  gorm:"type:boolean;default:false"`
+	Host       string  `json:"host"       gorm:"type:text;not null"`
+	Port       int     `json:"port"       gorm:"type:int;not null"`
+	Username   string  `json:"username"   gorm:"type:text;not null"`
+	Password   string  `json:"password"   gorm:"type:text;not null"`
+	Database   *string `json:"database"   gorm:"type:text"`
+	IsHttps    bool    `json:"isHttps"    gorm:"type:boolean;default:false"`
+	Privileges string  `json:"privileges" gorm:"column:privileges;type:text;not null;default:''"`
 }
 
 func (m *MysqlDatabase) TableName() string {
@@ -93,6 +97,16 @@ func (m *MysqlDatabase) TestConnection(
 	}
 	m.Version = detectedVersion
 
+	privileges, err := detectPrivileges(ctx, db, *m.Database)
+	if err != nil {
+		return err
+	}
+	m.Privileges = privileges
+
+	if err := checkBackupPermissions(m.Privileges); err != nil {
+		return err
+	}
+
 	return nil
 }
 
@@ -110,6 +124,7 @@ func (m *MysqlDatabase) Update(incoming *MysqlDatabase) {
 	m.Username = incoming.Username
 	m.Database = incoming.Database
 	m.IsHttps = incoming.IsHttps
+	m.Privileges = incoming.Privileges
 
 	if incoming.Password != "" {
 		m.Password = incoming.Password
@@ -130,15 +145,48 @@ func (m *MysqlDatabase) EncryptSensitiveFields(
 	return nil
 }
 
-func (m *MysqlDatabase) PopulateVersionIfEmpty(
+func (m *MysqlDatabase) PopulateDbData(
 	logger *slog.Logger,
 	encryptor encryption.FieldEncryptor,
 	databaseID uuid.UUID,
 ) error {
-	if m.Version != "" {
+	if m.Database == nil || *m.Database == "" {
 		return nil
 	}
-	return m.PopulateVersion(logger, encryptor, databaseID)
+
+	ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
+	defer cancel()
+
+	password, err := decryptPasswordIfNeeded(m.Password, encryptor, databaseID)
+	if err != nil {
+		return fmt.Errorf("failed to decrypt password: %w", err)
+	}
+
+	dsn := m.buildDSN(password, *m.Database)
+
+	db, err := sql.Open("mysql", dsn)
+	if err != nil {
+		return fmt.Errorf("failed to connect to database: %w", err)
+	}
+	defer func() {
+		if closeErr := db.Close(); closeErr != nil {
+			logger.Error("Failed to close connection", "error", closeErr)
+		}
+	}()
+
+	detectedVersion, err := detectMysqlVersion(ctx, db)
+	if err != nil {
+		return err
+	}
+	m.Version = detectedVersion
+
+	privileges, err := detectPrivileges(ctx, db, *m.Database)
+	if err != nil {
+		return err
+	}
+	m.Privileges = privileges
+
+	return nil
 }
 
 func (m *MysqlDatabase) PopulateVersion(
@@ -174,8 +222,8 @@ func (m *MysqlDatabase) PopulateVersion(
 	if err != nil {
 		return err
 	}
-
 	m.Version = detectedVersion
+
 	return nil
 }
 
@@ -184,17 +232,17 @@ func (m *MysqlDatabase) IsUserReadOnly(
 	logger *slog.Logger,
 	encryptor encryption.FieldEncryptor,
 	databaseID uuid.UUID,
-) (bool, error) {
+) (bool, []string, error) {
 	password, err := decryptPasswordIfNeeded(m.Password, encryptor, databaseID)
 	if err != nil {
-		return false, fmt.Errorf("failed to decrypt password: %w", err)
+		return false, nil, fmt.Errorf("failed to decrypt password: %w", err)
 	}
 
 	dsn := m.buildDSN(password, *m.Database)
 
 	db, err := sql.Open("mysql", dsn)
 	if err != nil {
-		return false, fmt.Errorf("failed to connect to database: %w", err)
+		return false, nil, fmt.Errorf("failed to connect to database: %w", err)
 	}
 	defer func() {
 		if closeErr := db.Close(); closeErr != nil {
@@ -204,33 +252,45 @@ func (m *MysqlDatabase) IsUserReadOnly(
 
 	rows, err := db.QueryContext(ctx, "SHOW GRANTS FOR CURRENT_USER()")
 	if err != nil {
-		return false, fmt.Errorf("failed to check grants: %w", err)
+		return false, nil, fmt.Errorf("failed to check grants: %w", err)
 	}
 	defer func() { _ = rows.Close() }()
 
 	writePrivileges := []string{
 		"INSERT", "UPDATE", "DELETE", "CREATE", "DROP", "ALTER",
 		"INDEX", "GRANT OPTION", "ALL PRIVILEGES", "SUPER",
+		"EXECUTE", "FILE", "RELOAD", "SHUTDOWN", "CREATE ROUTINE",
+		"ALTER ROUTINE", "CREATE USER",
+		"CREATE TABLESPACE", "REFERENCES",
 	}
 
+	detectedPrivileges := make(map[string]bool)
+
 	for rows.Next() {
 		var grant string
 		if err := rows.Scan(&grant); err != nil {
-			return false, fmt.Errorf("failed to scan grant: %w", err)
+			return false, nil, fmt.Errorf("failed to scan grant: %w", err)
 		}
 
 		for _, priv := range writePrivileges {
 			if regexp.MustCompile(`(?i)\b` + priv + `\b`).MatchString(grant) {
-				return false, nil
+				detectedPrivileges[priv] = true
 			}
 		}
 	}
 
 	if err := rows.Err(); err != nil {
-		return false, fmt.Errorf("error iterating grants: %w", err)
+		return false, nil, fmt.Errorf("error iterating grants: %w", err)
 	}
 
-	return true, nil
+	privileges := make([]string, 0, len(detectedPrivileges))
+	for priv := range detectedPrivileges {
+		privileges = append(privileges, priv)
+	}
+
+	isReadOnly := len(privileges) == 0
+
+	return isReadOnly, privileges, nil
 }
 
 func (m *MysqlDatabase) CreateReadOnlyUser(
@@ -259,7 +319,7 @@ func (m *MysqlDatabase) CreateReadOnlyUser(
 	maxRetries := 3
 	for attempt := range maxRetries {
 		newUsername := fmt.Sprintf("databasus-%s", uuid.New().String()[:8])
-		newPassword := uuid.New().String()
+		newPassword := encryption.GenerateComplexPassword()
 
 		tx, err := db.BeginTx(ctx, nil)
 		if err != nil {
@@ -325,20 +385,45 @@ func (m *MysqlDatabase) CreateReadOnlyUser(
 	return "", "", errors.New("failed to generate unique username after 3 attempts")
 }
 
+func (m *MysqlDatabase) HasPrivilege(priv string) bool {
+	return HasPrivilege(m.Privileges, priv)
+}
+
+func HasPrivilege(privileges, priv string) bool {
+	for p := range strings.SplitSeq(privileges, ",") {
+		if strings.TrimSpace(p) == priv {
+			return true
+		}
+	}
+	return false
+}
+
 func (m *MysqlDatabase) buildDSN(password string, database string) string {
 	tlsConfig := "false"
+	allowCleartext := ""
+
 	if m.IsHttps {
-		tlsConfig = "true"
+		err := mysql.RegisterTLSConfig("mysql-skip-verify", &tls.Config{
+			InsecureSkipVerify: true,
+		})
+		if err != nil {
+			// Config might already be registered, which is fine
+			_ = err
+		}
+
+		tlsConfig = "mysql-skip-verify"
+		allowCleartext = "&allowCleartextPasswords=1"
 	}
 
 	return fmt.Sprintf(
-		"%s:%s@tcp(%s:%d)/%s?parseTime=true&timeout=15s&tls=%s&charset=utf8mb4",
+		"%s:%s@tcp(%s:%d)/%s?parseTime=true&timeout=15s&tls=%s&charset=utf8mb4%s",
 		m.Username,
 		password,
 		m.Host,
 		m.Port,
 		database,
 		tlsConfig,
+		allowCleartext,
 	)
 }
 
@@ -388,6 +473,108 @@ func mapMysql8xVersion(minor string) tools.MysqlVersion {
 	}
 }
 
+// detectPrivileges detects backup-related privileges and returns them as comma-separated string
+func detectPrivileges(ctx context.Context, db *sql.DB, database string) (string, error) {
+	rows, err := db.QueryContext(ctx, "SHOW GRANTS FOR CURRENT_USER()")
+	if err != nil {
+		return "", fmt.Errorf("failed to check grants: %w", err)
+	}
+	defer func() { _ = rows.Close() }()
+
+	backupPrivileges := []string{
+		"SELECT", "SHOW VIEW", "LOCK TABLES", "TRIGGER", "EVENT",
+	}
+
+	detectedPrivileges := make(map[string]bool)
+	hasProcess := false
+	hasAllPrivileges := false
+
+	// Escape underscores to match MySQL's grant output format
+	// MySQL escapes _ as \_ in SHOW GRANTS output
+	// Pattern matches either literal _ or escaped \_
+	escapedDbName := strings.ReplaceAll(regexp.QuoteMeta(database), "_", `(_|\\_)`)
+	dbPatternStr := fmt.Sprintf(
+		`(?i)ON\s+[\x60'"]?%s[\x60'"]?\s*\.\s*\*`,
+		escapedDbName,
+	)
+	dbPattern := regexp.MustCompile(dbPatternStr)
+	globalPattern := regexp.MustCompile(`(?i)ON\s+\*\s*\.\s*\*`)
+	allPrivilegesPattern := regexp.MustCompile(`(?i)\bALL\s+PRIVILEGES\b`)
+
+	for rows.Next() {
+		var grant string
+		if err := rows.Scan(&grant); err != nil {
+			return "", fmt.Errorf("failed to scan grant: %w", err)
+		}
+
+		isRelevantGrant := globalPattern.MatchString(grant) || dbPattern.MatchString(grant)
+
+		if allPrivilegesPattern.MatchString(grant) && isRelevantGrant {
+			hasAllPrivileges = true
+		}
+
+		if isRelevantGrant {
+			for _, priv := range backupPrivileges {
+				privPattern := regexp.MustCompile(`(?i)\b` + regexp.QuoteMeta(priv) + `\b`)
+				if privPattern.MatchString(grant) {
+					detectedPrivileges[priv] = true
+				}
+			}
+		}
+
+		if globalPattern.MatchString(grant) {
+			processPattern := regexp.MustCompile(`(?i)\bPROCESS\b`)
+			if processPattern.MatchString(grant) {
+				hasProcess = true
+			}
+		}
+	}
+
+	if err := rows.Err(); err != nil {
+		return "", fmt.Errorf("error iterating grants: %w", err)
+	}
+
+	if hasAllPrivileges {
+		for _, priv := range backupPrivileges {
+			detectedPrivileges[priv] = true
+		}
+		hasProcess = true
+	}
+
+	privileges := make([]string, 0, len(detectedPrivileges)+1)
+	for priv := range detectedPrivileges {
+		privileges = append(privileges, priv)
+	}
+	if hasProcess {
+		privileges = append(privileges, "PROCESS")
+	}
+
+	sort.Strings(privileges)
+	return strings.Join(privileges, ","), nil
+}
+
+// checkBackupPermissions verifies the user has sufficient privileges for mysqldump backup.
+// Required: SELECT, SHOW VIEW
+func checkBackupPermissions(privileges string) error {
+	requiredPrivileges := []string{"SELECT", "SHOW VIEW"}
+
+	var missingPrivileges []string
+	for _, priv := range requiredPrivileges {
+		if !HasPrivilege(privileges, priv) {
+			missingPrivileges = append(missingPrivileges, priv)
+		}
+	}
+
+	if len(missingPrivileges) > 0 {
+		return fmt.Errorf(
+			"insufficient permissions for backup. Missing: %s. Required: SELECT, SHOW VIEW",
+			strings.Join(missingPrivileges, ", "),
+		)
+	}
+
+	return nil
+}
+
 func decryptPasswordIfNeeded(
 	password string,
 	encryptor encryption.FieldEncryptor,

backend/internal/features/databases/databases/mysql/model_test.go

@@ -0,0 +1,839 @@
+package mysql
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"os"
+	"strconv"
+	"strings"
+	"testing"
+
+	_ "github.com/go-sql-driver/mysql"
+	"github.com/google/uuid"
+	"github.com/jmoiron/sqlx"
+	"github.com/stretchr/testify/assert"
+
+	"databasus-backend/internal/config"
+	"databasus-backend/internal/util/tools"
+)
+
+func Test_TestConnection_InsufficientPermissions_ReturnsError(t *testing.T) {
+	env := config.GetEnv()
+	cases := []struct {
+		name    string
+		version tools.MysqlVersion
+		port    string
+	}{
+		{"MySQL 5.7", tools.MysqlVersion57, env.TestMysql57Port},
+		{"MySQL 8.0", tools.MysqlVersion80, env.TestMysql80Port},
+		{"MySQL 8.4", tools.MysqlVersion84, env.TestMysql84Port},
+		{"MySQL 9", tools.MysqlVersion9, env.TestMysql90Port},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			container := connectToMysqlContainer(t, tc.port, tc.version)
+			defer container.DB.Close()
+
+			_, err := container.DB.Exec(`DROP TABLE IF EXISTS permission_test`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(`CREATE TABLE permission_test (
+				id INT AUTO_INCREMENT PRIMARY KEY,
+				data VARCHAR(255) NOT NULL
+			)`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(`INSERT INTO permission_test (data) VALUES ('test1')`)
+			assert.NoError(t, err)
+
+			limitedUsername := fmt.Sprintf("limited_%s", uuid.New().String()[:8])
+			limitedPassword := "limitedpassword123"
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				"CREATE USER '%s'@'%%' IDENTIFIED BY '%s'",
+				limitedUsername,
+				limitedPassword,
+			))
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				"GRANT SELECT ON `%s`.* TO '%s'@'%%'",
+				container.Database,
+				limitedUsername,
+			))
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec("FLUSH PRIVILEGES")
+			assert.NoError(t, err)
+
+			defer func() {
+				_, _ = container.DB.Exec(
+					fmt.Sprintf("DROP USER IF EXISTS '%s'@'%%'", limitedUsername),
+				)
+			}()
+
+			mysqlModel := &MysqlDatabase{
+				Version:  tc.version,
+				Host:     container.Host,
+				Port:     container.Port,
+				Username: limitedUsername,
+				Password: limitedPassword,
+				Database: &container.Database,
+				IsHttps:  false,
+			}
+
+			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+
+			err = mysqlModel.TestConnection(logger, nil, uuid.New())
+			assert.Error(t, err)
+			assert.Contains(t, err.Error(), "insufficient permissions")
+		})
+	}
+}
+
+func Test_TestConnection_SufficientPermissions_Success(t *testing.T) {
+	env := config.GetEnv()
+	cases := []struct {
+		name    string
+		version tools.MysqlVersion
+		port    string
+	}{
+		{"MySQL 5.7", tools.MysqlVersion57, env.TestMysql57Port},
+		{"MySQL 8.0", tools.MysqlVersion80, env.TestMysql80Port},
+		{"MySQL 8.4", tools.MysqlVersion84, env.TestMysql84Port},
+		{"MySQL 9", tools.MysqlVersion9, env.TestMysql90Port},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			container := connectToMysqlContainer(t, tc.port, tc.version)
+			defer container.DB.Close()
+
+			_, err := container.DB.Exec(`DROP TABLE IF EXISTS backup_test`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(`CREATE TABLE backup_test (
+				id INT AUTO_INCREMENT PRIMARY KEY,
+				data VARCHAR(255) NOT NULL
+			)`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(`INSERT INTO backup_test (data) VALUES ('test1')`)
+			assert.NoError(t, err)
+
+			backupUsername := fmt.Sprintf("backup_%s", uuid.New().String()[:8])
+			backupPassword := "backuppassword123"
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				"CREATE USER '%s'@'%%' IDENTIFIED BY '%s'",
+				backupUsername,
+				backupPassword,
+			))
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				"GRANT SELECT, SHOW VIEW, LOCK TABLES, TRIGGER, EVENT ON `%s`.* TO '%s'@'%%'",
+				container.Database,
+				backupUsername,
+			))
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				"GRANT PROCESS ON *.* TO '%s'@'%%'",
+				backupUsername,
+			))
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec("FLUSH PRIVILEGES")
+			assert.NoError(t, err)
+
+			defer func() {
+				_, _ = container.DB.Exec(
+					fmt.Sprintf("DROP USER IF EXISTS '%s'@'%%'", backupUsername),
+				)
+			}()
+
+			mysqlModel := &MysqlDatabase{
+				Version:  tc.version,
+				Host:     container.Host,
+				Port:     container.Port,
+				Username: backupUsername,
+				Password: backupPassword,
+				Database: &container.Database,
+				IsHttps:  false,
+			}
+
+			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+
+			err = mysqlModel.TestConnection(logger, nil, uuid.New())
+			assert.NoError(t, err)
+		})
+	}
+}
+
+func Test_IsUserReadOnly_AdminUser_ReturnsFalse(t *testing.T) {
+	env := config.GetEnv()
+	cases := []struct {
+		name    string
+		version tools.MysqlVersion
+		port    string
+	}{
+		{"MySQL 5.7", tools.MysqlVersion57, env.TestMysql57Port},
+		{"MySQL 8.0", tools.MysqlVersion80, env.TestMysql80Port},
+		{"MySQL 8.4", tools.MysqlVersion84, env.TestMysql84Port},
+		{"MySQL 9", tools.MysqlVersion9, env.TestMysql90Port},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			container := connectToMysqlContainer(t, tc.port, tc.version)
+			defer container.DB.Close()
+
+			mysqlModel := createMysqlModel(container)
+			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+			ctx := context.Background()
+
+			isReadOnly, privileges, err := mysqlModel.IsUserReadOnly(ctx, logger, nil, uuid.New())
+			assert.NoError(t, err)
+			assert.False(t, isReadOnly, "Root user should not be read-only")
+			assert.NotEmpty(t, privileges, "Root user should have privileges")
+		})
+	}
+}
+
+func Test_IsUserReadOnly_ReadOnlyUser_ReturnsTrue(t *testing.T) {
+	env := config.GetEnv()
+	container := connectToMysqlContainer(t, env.TestMysql80Port, tools.MysqlVersion80)
+	defer container.DB.Close()
+
+	_, err := container.DB.Exec(`DROP TABLE IF EXISTS readonly_check_test`)
+	assert.NoError(t, err)
+
+	_, err = container.DB.Exec(`CREATE TABLE readonly_check_test (
+			id INT AUTO_INCREMENT PRIMARY KEY,
+			data VARCHAR(255) NOT NULL
+		)`)
+	assert.NoError(t, err)
+
+	_, err = container.DB.Exec(`INSERT INTO readonly_check_test (data) VALUES ('test1')`)
+	assert.NoError(t, err)
+
+	mysqlModel := createMysqlModel(container)
+	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+	ctx := context.Background()
+
+	username, password, err := mysqlModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
+	assert.NoError(t, err)
+
+	readOnlyModel := &MysqlDatabase{
+		Version:  mysqlModel.Version,
+		Host:     mysqlModel.Host,
+		Port:     mysqlModel.Port,
+		Username: username,
+		Password: password,
+		Database: mysqlModel.Database,
+		IsHttps:  false,
+	}
+
+	isReadOnly, privileges, err := readOnlyModel.IsUserReadOnly(ctx, logger, nil, uuid.New())
+	assert.NoError(t, err)
+	assert.True(t, isReadOnly, "Read-only user should be read-only")
+	assert.Empty(t, privileges, "Read-only user should have no write privileges")
+
+	_, err = container.DB.Exec(fmt.Sprintf("DROP USER IF EXISTS '%s'@'%%'", username))
+	assert.NoError(t, err)
+}
+
+func Test_CreateReadOnlyUser_UserCanReadButNotWrite(t *testing.T) {
+	env := config.GetEnv()
+	cases := []struct {
+		name    string
+		version tools.MysqlVersion
+		port    string
+	}{
+		{"MySQL 5.7", tools.MysqlVersion57, env.TestMysql57Port},
+		{"MySQL 8.0", tools.MysqlVersion80, env.TestMysql80Port},
+		{"MySQL 8.4", tools.MysqlVersion84, env.TestMysql84Port},
+		{"MySQL 9", tools.MysqlVersion9, env.TestMysql90Port},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			container := connectToMysqlContainer(t, tc.port, tc.version)
+			defer container.DB.Close()
+
+			_, err := container.DB.Exec(`DROP TABLE IF EXISTS readonly_test`)
+			assert.NoError(t, err)
+			_, err = container.DB.Exec(`DROP TABLE IF EXISTS hack_table`)
+			assert.NoError(t, err)
+			_, err = container.DB.Exec(`DROP TABLE IF EXISTS future_table`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(`
+				CREATE TABLE readonly_test (
+					id INT AUTO_INCREMENT PRIMARY KEY,
+					data VARCHAR(255) NOT NULL
+				)
+			`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(
+				`INSERT INTO readonly_test (data) VALUES ('test1'), ('test2')`,
+			)
+			assert.NoError(t, err)
+
+			mysqlModel := createMysqlModel(container)
+			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+			ctx := context.Background()
+
+			username, password, err := mysqlModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
+			assert.NoError(t, err)
+			assert.NotEmpty(t, username)
+			assert.NotEmpty(t, password)
+			assert.True(t, strings.HasPrefix(username, "databasus-"))
+
+			readOnlyModel := &MysqlDatabase{
+				Version:  mysqlModel.Version,
+				Host:     mysqlModel.Host,
+				Port:     mysqlModel.Port,
+				Username: username,
+				Password: password,
+				Database: mysqlModel.Database,
+				IsHttps:  false,
+			}
+
+			isReadOnly, privileges, err := readOnlyModel.IsUserReadOnly(
+				ctx,
+				logger,
+				nil,
+				uuid.New(),
+			)
+			assert.NoError(t, err)
+			assert.True(t, isReadOnly, "Created user should be read-only")
+			assert.Empty(t, privileges, "Read-only user should have no write privileges")
+
+			readOnlyDSN := fmt.Sprintf(
+				"%s:%s@tcp(%s:%d)/%s?parseTime=true",
+				username,
+				password,
+				container.Host,
+				container.Port,
+				container.Database,
+			)
+			readOnlyConn, err := sqlx.Connect("mysql", readOnlyDSN)
+			assert.NoError(t, err)
+			defer readOnlyConn.Close()
+
+			var count int
+			err = readOnlyConn.Get(&count, "SELECT COUNT(*) FROM readonly_test")
+			assert.NoError(t, err)
+			assert.Equal(t, 2, count)
+
+			_, err = readOnlyConn.Exec("INSERT INTO readonly_test (data) VALUES ('should-fail')")
+			assert.Error(t, err)
+			assert.Contains(t, strings.ToLower(err.Error()), "denied")
+
+			_, err = readOnlyConn.Exec("UPDATE readonly_test SET data = 'hacked' WHERE id = 1")
+			assert.Error(t, err)
+			assert.Contains(t, strings.ToLower(err.Error()), "denied")
+
+			_, err = readOnlyConn.Exec("DELETE FROM readonly_test WHERE id = 1")
+			assert.Error(t, err)
+			assert.Contains(t, strings.ToLower(err.Error()), "denied")
+
+			_, err = readOnlyConn.Exec("CREATE TABLE hack_table (id INT)")
+			assert.Error(t, err)
+			assert.Contains(t, strings.ToLower(err.Error()), "denied")
+
+			_, err = container.DB.Exec(fmt.Sprintf("DROP USER IF EXISTS '%s'@'%%'", username))
+			assert.NoError(t, err)
+		})
+	}
+}
+
+func Test_ReadOnlyUser_FutureTables_NoSelectPermission(t *testing.T) {
+	env := config.GetEnv()
+	container := connectToMysqlContainer(t, env.TestMysql80Port, tools.MysqlVersion80)
+	defer container.DB.Close()
+
+	mysqlModel := createMysqlModel(container)
+	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+	ctx := context.Background()
+
+	username, password, err := mysqlModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
+	assert.NoError(t, err)
+
+	_, err = container.DB.Exec(`DROP TABLE IF EXISTS future_table`)
+	assert.NoError(t, err)
+	_, err = container.DB.Exec(`
+		CREATE TABLE future_table (
+			id INT AUTO_INCREMENT PRIMARY KEY,
+			data VARCHAR(255) NOT NULL
+		)
+	`)
+	assert.NoError(t, err)
+	_, err = container.DB.Exec(`INSERT INTO future_table (data) VALUES ('future_data')`)
+	assert.NoError(t, err)
+
+	readOnlyDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
+		username, password, container.Host, container.Port, container.Database)
+	readOnlyConn, err := sqlx.Connect("mysql", readOnlyDSN)
+	assert.NoError(t, err)
+	defer readOnlyConn.Close()
+
+	var data string
+	err = readOnlyConn.Get(&data, "SELECT data FROM future_table LIMIT 1")
+	assert.NoError(t, err)
+	assert.Equal(t, "future_data", data)
+
+	_, err = container.DB.Exec(fmt.Sprintf("DROP USER IF EXISTS '%s'@'%%'", username))
+	assert.NoError(t, err)
+}
+
+func Test_CreateReadOnlyUser_DatabaseNameWithDash_Success(t *testing.T) {
+	env := config.GetEnv()
+	container := connectToMysqlContainer(t, env.TestMysql80Port, tools.MysqlVersion80)
+	defer container.DB.Close()
+
+	dashDbName := "test-db-with-dash"
+
+	_, err := container.DB.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", dashDbName))
+	assert.NoError(t, err)
+
+	_, err = container.DB.Exec(fmt.Sprintf("CREATE DATABASE `%s`", dashDbName))
+	assert.NoError(t, err)
+
+	defer func() {
+		_, _ = container.DB.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", dashDbName))
+	}()
+
+	dashDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
+		container.Username, container.Password, container.Host, container.Port, dashDbName)
+	dashDB, err := sqlx.Connect("mysql", dashDSN)
+	assert.NoError(t, err)
+	defer dashDB.Close()
+
+	_, err = dashDB.Exec(`
+		CREATE TABLE dash_test (
+			id INT AUTO_INCREMENT PRIMARY KEY,
+			data VARCHAR(255) NOT NULL
+		)
+	`)
+	assert.NoError(t, err)
+
+	_, err = dashDB.Exec(`INSERT INTO dash_test (data) VALUES ('test1'), ('test2')`)
+	assert.NoError(t, err)
+
+	mysqlModel := &MysqlDatabase{
+		Version:  tools.MysqlVersion80,
+		Host:     container.Host,
+		Port:     container.Port,
+		Username: container.Username,
+		Password: container.Password,
+		Database: &dashDbName,
+		IsHttps:  false,
+	}
+
+	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+	ctx := context.Background()
+
+	username, password, err := mysqlModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
+	assert.NoError(t, err)
+	assert.NotEmpty(t, username)
+	assert.NotEmpty(t, password)
+	assert.True(t, strings.HasPrefix(username, "databasus-"))
+
+	readOnlyDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
+		username, password, container.Host, container.Port, dashDbName)
+	readOnlyConn, err := sqlx.Connect("mysql", readOnlyDSN)
+	assert.NoError(t, err)
+	defer readOnlyConn.Close()
+
+	var count int
+	err = readOnlyConn.Get(&count, "SELECT COUNT(*) FROM dash_test")
+	assert.NoError(t, err)
+	assert.Equal(t, 2, count)
+
+	_, err = readOnlyConn.Exec("INSERT INTO dash_test (data) VALUES ('should-fail')")
+	assert.Error(t, err)
+	assert.Contains(t, strings.ToLower(err.Error()), "denied")
+
+	_, err = dashDB.Exec(fmt.Sprintf("DROP USER IF EXISTS '%s'@'%%'", username))
+	assert.NoError(t, err)
+}
+
+func Test_ReadOnlyUser_CannotDropOrAlterTables(t *testing.T) {
+	env := config.GetEnv()
+	container := connectToMysqlContainer(t, env.TestMysql80Port, tools.MysqlVersion80)
+	defer container.DB.Close()
+
+	_, err := container.DB.Exec(`DROP TABLE IF EXISTS drop_test`)
+	assert.NoError(t, err)
+	_, err = container.DB.Exec(`
+		CREATE TABLE drop_test (
+			id INT AUTO_INCREMENT PRIMARY KEY,
+			data VARCHAR(255) NOT NULL
+		)
+	`)
+	assert.NoError(t, err)
+	_, err = container.DB.Exec(`INSERT INTO drop_test (data) VALUES ('test1')`)
+	assert.NoError(t, err)
+
+	mysqlModel := createMysqlModel(container)
+	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+	ctx := context.Background()
+
+	username, password, err := mysqlModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
+	assert.NoError(t, err)
+
+	readOnlyDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
+		username, password, container.Host, container.Port, container.Database)
+	readOnlyConn, err := sqlx.Connect("mysql", readOnlyDSN)
+	assert.NoError(t, err)
+	defer readOnlyConn.Close()
+
+	_, err = readOnlyConn.Exec("DROP TABLE drop_test")
+	assert.Error(t, err)
+	assert.Contains(t, strings.ToLower(err.Error()), "denied")
+
+	_, err = readOnlyConn.Exec("ALTER TABLE drop_test ADD COLUMN new_col VARCHAR(100)")
+	assert.Error(t, err)
+	assert.Contains(t, strings.ToLower(err.Error()), "denied")
+
+	_, err = readOnlyConn.Exec("TRUNCATE TABLE drop_test")
+	assert.Error(t, err)
+	assert.Contains(t, strings.ToLower(err.Error()), "denied")
+
+	_, err = container.DB.Exec(fmt.Sprintf("DROP USER IF EXISTS '%s'@'%%'", username))
+	assert.NoError(t, err)
+}
+
+func Test_TestConnection_DatabaseSpecificPrivilegesWithGlobalProcess_Success(t *testing.T) {
+	env := config.GetEnv()
+	cases := []struct {
+		name    string
+		version tools.MysqlVersion
+		port    string
+	}{
+		{"MySQL 5.7", tools.MysqlVersion57, env.TestMysql57Port},
+		{"MySQL 8.0", tools.MysqlVersion80, env.TestMysql80Port},
+		{"MySQL 8.4", tools.MysqlVersion84, env.TestMysql84Port},
+		{"MySQL 9", tools.MysqlVersion9, env.TestMysql90Port},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			container := connectToMysqlContainer(t, tc.port, tc.version)
+			defer container.DB.Close()
+
+			_, err := container.DB.Exec(`DROP TABLE IF EXISTS privilege_test`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(`CREATE TABLE privilege_test (
+				id INT AUTO_INCREMENT PRIMARY KEY,
+				data VARCHAR(255) NOT NULL
+			)`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(`INSERT INTO privilege_test (data) VALUES ('test1')`)
+			assert.NoError(t, err)
+
+			specificUsername := fmt.Sprintf("specific_%s", uuid.New().String()[:8])
+			specificPassword := "specificpass123"
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				"CREATE USER '%s'@'%%' IDENTIFIED BY '%s'",
+				specificUsername,
+				specificPassword,
+			))
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				"GRANT SELECT, SHOW VIEW ON %s.* TO '%s'@'%%'",
+				container.Database,
+				specificUsername,
+			))
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				"GRANT PROCESS ON *.* TO '%s'@'%%'",
+				specificUsername,
+			))
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec("FLUSH PRIVILEGES")
+			assert.NoError(t, err)
+
+			defer func() {
+				_, _ = container.DB.Exec(
+					fmt.Sprintf("DROP USER IF EXISTS '%s'@'%%'", specificUsername),
+				)
+			}()
+
+			mysqlModel := &MysqlDatabase{
+				Version:  tc.version,
+				Host:     container.Host,
+				Port:     container.Port,
+				Username: specificUsername,
+				Password: specificPassword,
+				Database: &container.Database,
+				IsHttps:  false,
+			}
+
+			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+
+			err = mysqlModel.TestConnection(logger, nil, uuid.New())
+			assert.NoError(t, err)
+		})
+	}
+}
+
+func Test_TestConnection_DatabaseWithUnderscores_Success(t *testing.T) {
+	env := config.GetEnv()
+	container := connectToMysqlContainer(t, env.TestMysql80Port, tools.MysqlVersion80)
+	defer container.DB.Close()
+
+	underscoreDbName := "test_db_name"
+
+	_, err := container.DB.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", underscoreDbName))
+	assert.NoError(t, err)
+
+	_, err = container.DB.Exec(fmt.Sprintf("CREATE DATABASE `%s`", underscoreDbName))
+	assert.NoError(t, err)
+
+	defer func() {
+		_, _ = container.DB.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", underscoreDbName))
+	}()
+
+	underscoreDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
+		container.Username, container.Password, container.Host, container.Port, underscoreDbName)
+	underscoreDB, err := sqlx.Connect("mysql", underscoreDSN)
+	assert.NoError(t, err)
+	defer underscoreDB.Close()
+
+	_, err = underscoreDB.Exec(`
+		CREATE TABLE underscore_test (
+			id INT AUTO_INCREMENT PRIMARY KEY,
+			data VARCHAR(255) NOT NULL
+		)
+	`)
+	assert.NoError(t, err)
+
+	_, err = underscoreDB.Exec(`INSERT INTO underscore_test (data) VALUES ('test1')`)
+	assert.NoError(t, err)
+
+	underscoreUsername := fmt.Sprintf("under_%s", uuid.New().String()[:8])
+	underscorePassword := "underscorepass123"
+
+	_, err = underscoreDB.Exec(fmt.Sprintf(
+		"CREATE USER '%s'@'%%' IDENTIFIED BY '%s'",
+		underscoreUsername,
+		underscorePassword,
+	))
+	assert.NoError(t, err)
+
+	_, err = underscoreDB.Exec(fmt.Sprintf(
+		"GRANT SELECT, SHOW VIEW ON `%s`.* TO '%s'@'%%'",
+		underscoreDbName,
+		underscoreUsername,
+	))
+	assert.NoError(t, err)
+
+	_, err = underscoreDB.Exec("FLUSH PRIVILEGES")
+	assert.NoError(t, err)
+
+	defer func() {
+		_, _ = underscoreDB.Exec(fmt.Sprintf("DROP USER IF EXISTS '%s'@'%%'", underscoreUsername))
+	}()
+
+	mysqlModel := &MysqlDatabase{
+		Version:  tools.MysqlVersion80,
+		Host:     container.Host,
+		Port:     container.Port,
+		Username: underscoreUsername,
+		Password: underscorePassword,
+		Database: &underscoreDbName,
+		IsHttps:  false,
+	}
+
+	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+
+	err = mysqlModel.TestConnection(logger, nil, uuid.New())
+	assert.NoError(t, err)
+}
+
+func Test_TestConnection_DatabaseWithUnderscoresAndAllPrivileges_Success(t *testing.T) {
+	env := config.GetEnv()
+	cases := []struct {
+		name    string
+		version tools.MysqlVersion
+		port    string
+	}{
+		{"MySQL 5.7", tools.MysqlVersion57, env.TestMysql57Port},
+		{"MySQL 8.0", tools.MysqlVersion80, env.TestMysql80Port},
+		{"MySQL 8.4", tools.MysqlVersion84, env.TestMysql84Port},
+		{"MySQL 9", tools.MysqlVersion9, env.TestMysql90Port},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			container := connectToMysqlContainer(t, tc.port, tc.version)
+			defer container.DB.Close()
+
+			underscoreDbName := "test_all_db"
+
+			_, err := container.DB.Exec(
+				fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", underscoreDbName),
+			)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(fmt.Sprintf("CREATE DATABASE `%s`", underscoreDbName))
+			assert.NoError(t, err)
+
+			defer func() {
+				_, _ = container.DB.Exec(
+					fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", underscoreDbName),
+				)
+			}()
+
+			underscoreDSN := fmt.Sprintf(
+				"%s:%s@tcp(%s:%d)/%s?parseTime=true",
+				container.Username,
+				container.Password,
+				container.Host,
+				container.Port,
+				underscoreDbName,
+			)
+			underscoreDB, err := sqlx.Connect("mysql", underscoreDSN)
+			assert.NoError(t, err)
+			defer underscoreDB.Close()
+
+			_, err = underscoreDB.Exec(`
+				CREATE TABLE all_priv_test (
+					id INT AUTO_INCREMENT PRIMARY KEY,
+					data VARCHAR(255) NOT NULL
+				)
+			`)
+			assert.NoError(t, err)
+
+			_, err = underscoreDB.Exec(`INSERT INTO all_priv_test (data) VALUES ('test1')`)
+			assert.NoError(t, err)
+
+			allPrivUsername := fmt.Sprintf("allpriv_%s", uuid.New().String()[:8])
+			allPrivPassword := "allprivpass123"
+
+			_, err = underscoreDB.Exec(fmt.Sprintf(
+				"CREATE USER '%s'@'%%' IDENTIFIED BY '%s'",
+				allPrivUsername,
+				allPrivPassword,
+			))
+			assert.NoError(t, err)
+
+			_, err = underscoreDB.Exec(fmt.Sprintf(
+				"GRANT ALL PRIVILEGES ON `%s`.* TO '%s'@'%%'",
+				underscoreDbName,
+				allPrivUsername,
+			))
+			assert.NoError(t, err)
+
+			_, err = underscoreDB.Exec("FLUSH PRIVILEGES")
+			assert.NoError(t, err)
+
+			defer func() {
+				_, _ = container.DB.Exec(
+					fmt.Sprintf("DROP USER IF EXISTS '%s'@'%%'", allPrivUsername),
+				)
+			}()
+
+			mysqlModel := &MysqlDatabase{
+				Version:  tc.version,
+				Host:     container.Host,
+				Port:     container.Port,
+				Username: allPrivUsername,
+				Password: allPrivPassword,
+				Database: &underscoreDbName,
+				IsHttps:  false,
+			}
+
+			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+
+			err = mysqlModel.TestConnection(logger, nil, uuid.New())
+			assert.NoError(t, err)
+			assert.NotEmpty(t, mysqlModel.Privileges)
+			assert.Contains(t, mysqlModel.Privileges, "SELECT")
+			assert.Contains(t, mysqlModel.Privileges, "SHOW VIEW")
+		})
+	}
+}
+
+type MysqlContainer struct {
+	Host     string
+	Port     int
+	Username string
+	Password string
+	Database string
+	Version  tools.MysqlVersion
+	DB       *sqlx.DB
+}
+
+func connectToMysqlContainer(
+	t *testing.T,
+	port string,
+	version tools.MysqlVersion,
+) *MysqlContainer {
+	if port == "" {
+		t.Skipf("MySQL port not configured for version %s", version)
+	}
+
+	dbName := "testdb"
+	host := config.GetEnv().TestLocalhost
+	username := "root"
+	password := "rootpassword"
+
+	portInt, err := strconv.Atoi(port)
+	assert.NoError(t, err)
+
+	dsn := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
+		username, password, host, portInt, dbName)
+
+	db, err := sqlx.Connect("mysql", dsn)
+	if err != nil {
+		t.Skipf("Failed to connect to MySQL %s: %v", version, err)
+	}
+
+	return &MysqlContainer{
+		Host:     host,
+		Port:     portInt,
+		Username: username,
+		Password: password,
+		Database: dbName,
+		Version:  version,
+		DB:       db,
+	}
+}
+
+func createMysqlModel(container *MysqlContainer) *MysqlDatabase {
+	return &MysqlDatabase{
+		Version:  container.Version,
+		Host:     container.Host,
+		Port:     container.Port,
+		Username: container.Username,
+		Password: container.Password,
+		Database: &container.Database,
+		IsHttps:  false,
+	}
+}

backend/internal/features/databases/databases/mysql/readonly_user_test.go

@@ -1,368 +0,0 @@
-package mysql
-
-import (
-	"context"
-	"fmt"
-	"log/slog"
-	"os"
-	"strconv"
-	"strings"
-	"testing"
-
-	_ "github.com/go-sql-driver/mysql"
-	"github.com/google/uuid"
-	"github.com/jmoiron/sqlx"
-	"github.com/stretchr/testify/assert"
-
-	"databasus-backend/internal/config"
-	"databasus-backend/internal/util/tools"
-)
-
-func Test_IsUserReadOnly_AdminUser_ReturnsFalse(t *testing.T) {
-	env := config.GetEnv()
-	cases := []struct {
-		name    string
-		version tools.MysqlVersion
-		port    string
-	}{
-		{"MySQL 5.7", tools.MysqlVersion57, env.TestMysql57Port},
-		{"MySQL 8.0", tools.MysqlVersion80, env.TestMysql80Port},
-		{"MySQL 8.4", tools.MysqlVersion84, env.TestMysql84Port},
-		{"MySQL 9", tools.MysqlVersion9, env.TestMysql90Port},
-	}
-
-	for _, tc := range cases {
-		t.Run(tc.name, func(t *testing.T) {
-			t.Parallel()
-
-			container := connectToMysqlContainer(t, tc.port, tc.version)
-			defer container.DB.Close()
-
-			mysqlModel := createMysqlModel(container)
-			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
-			ctx := context.Background()
-
-			isReadOnly, err := mysqlModel.IsUserReadOnly(ctx, logger, nil, uuid.New())
-			assert.NoError(t, err)
-			assert.False(t, isReadOnly, "Root user should not be read-only")
-		})
-	}
-}
-
-func Test_CreateReadOnlyUser_UserCanReadButNotWrite(t *testing.T) {
-	env := config.GetEnv()
-	cases := []struct {
-		name    string
-		version tools.MysqlVersion
-		port    string
-	}{
-		{"MySQL 5.7", tools.MysqlVersion57, env.TestMysql57Port},
-		{"MySQL 8.0", tools.MysqlVersion80, env.TestMysql80Port},
-		{"MySQL 8.4", tools.MysqlVersion84, env.TestMysql84Port},
-		{"MySQL 9", tools.MysqlVersion9, env.TestMysql90Port},
-	}
-
-	for _, tc := range cases {
-		t.Run(tc.name, func(t *testing.T) {
-			t.Parallel()
-
-			container := connectToMysqlContainer(t, tc.port, tc.version)
-			defer container.DB.Close()
-
-			_, err := container.DB.Exec(`DROP TABLE IF EXISTS readonly_test`)
-			assert.NoError(t, err)
-			_, err = container.DB.Exec(`DROP TABLE IF EXISTS hack_table`)
-			assert.NoError(t, err)
-			_, err = container.DB.Exec(`DROP TABLE IF EXISTS future_table`)
-			assert.NoError(t, err)
-
-			_, err = container.DB.Exec(`
-				CREATE TABLE readonly_test (
-					id INT AUTO_INCREMENT PRIMARY KEY,
-					data VARCHAR(255) NOT NULL
-				)
-			`)
-			assert.NoError(t, err)
-
-			_, err = container.DB.Exec(
-				`INSERT INTO readonly_test (data) VALUES ('test1'), ('test2')`,
-			)
-			assert.NoError(t, err)
-
-			mysqlModel := createMysqlModel(container)
-			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
-			ctx := context.Background()
-
-			username, password, err := mysqlModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
-			assert.NoError(t, err)
-			assert.NotEmpty(t, username)
-			assert.NotEmpty(t, password)
-			assert.True(t, strings.HasPrefix(username, "databasus-"))
-
-			readOnlyModel := &MysqlDatabase{
-				Version:  mysqlModel.Version,
-				Host:     mysqlModel.Host,
-				Port:     mysqlModel.Port,
-				Username: username,
-				Password: password,
-				Database: mysqlModel.Database,
-				IsHttps:  false,
-			}
-
-			isReadOnly, err := readOnlyModel.IsUserReadOnly(ctx, logger, nil, uuid.New())
-			assert.NoError(t, err)
-			assert.True(t, isReadOnly, "Created user should be read-only")
-
-			readOnlyDSN := fmt.Sprintf(
-				"%s:%s@tcp(%s:%d)/%s?parseTime=true",
-				username,
-				password,
-				container.Host,
-				container.Port,
-				container.Database,
-			)
-			readOnlyConn, err := sqlx.Connect("mysql", readOnlyDSN)
-			assert.NoError(t, err)
-			defer readOnlyConn.Close()
-
-			var count int
-			err = readOnlyConn.Get(&count, "SELECT COUNT(*) FROM readonly_test")
-			assert.NoError(t, err)
-			assert.Equal(t, 2, count)
-
-			_, err = readOnlyConn.Exec("INSERT INTO readonly_test (data) VALUES ('should-fail')")
-			assert.Error(t, err)
-			assert.Contains(t, strings.ToLower(err.Error()), "denied")
-
-			_, err = readOnlyConn.Exec("UPDATE readonly_test SET data = 'hacked' WHERE id = 1")
-			assert.Error(t, err)
-			assert.Contains(t, strings.ToLower(err.Error()), "denied")
-
-			_, err = readOnlyConn.Exec("DELETE FROM readonly_test WHERE id = 1")
-			assert.Error(t, err)
-			assert.Contains(t, strings.ToLower(err.Error()), "denied")
-
-			_, err = readOnlyConn.Exec("CREATE TABLE hack_table (id INT)")
-			assert.Error(t, err)
-			assert.Contains(t, strings.ToLower(err.Error()), "denied")
-
-			_, err = container.DB.Exec(fmt.Sprintf("DROP USER IF EXISTS '%s'@'%%'", username))
-			assert.NoError(t, err)
-		})
-	}
-}
-
-func Test_ReadOnlyUser_FutureTables_NoSelectPermission(t *testing.T) {
-	env := config.GetEnv()
-	container := connectToMysqlContainer(t, env.TestMysql80Port, tools.MysqlVersion80)
-	defer container.DB.Close()
-
-	mysqlModel := createMysqlModel(container)
-	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
-	ctx := context.Background()
-
-	username, password, err := mysqlModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
-	assert.NoError(t, err)
-
-	_, err = container.DB.Exec(`DROP TABLE IF EXISTS future_table`)
-	assert.NoError(t, err)
-	_, err = container.DB.Exec(`
-		CREATE TABLE future_table (
-			id INT AUTO_INCREMENT PRIMARY KEY,
-			data VARCHAR(255) NOT NULL
-		)
-	`)
-	assert.NoError(t, err)
-	_, err = container.DB.Exec(`INSERT INTO future_table (data) VALUES ('future_data')`)
-	assert.NoError(t, err)
-
-	readOnlyDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
-		username, password, container.Host, container.Port, container.Database)
-	readOnlyConn, err := sqlx.Connect("mysql", readOnlyDSN)
-	assert.NoError(t, err)
-	defer readOnlyConn.Close()
-
-	var data string
-	err = readOnlyConn.Get(&data, "SELECT data FROM future_table LIMIT 1")
-	assert.NoError(t, err)
-	assert.Equal(t, "future_data", data)
-
-	_, err = container.DB.Exec(fmt.Sprintf("DROP USER IF EXISTS '%s'@'%%'", username))
-	assert.NoError(t, err)
-}
-
-func Test_CreateReadOnlyUser_DatabaseNameWithDash_Success(t *testing.T) {
-	env := config.GetEnv()
-	container := connectToMysqlContainer(t, env.TestMysql80Port, tools.MysqlVersion80)
-	defer container.DB.Close()
-
-	dashDbName := "test-db-with-dash"
-
-	_, err := container.DB.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", dashDbName))
-	assert.NoError(t, err)
-
-	_, err = container.DB.Exec(fmt.Sprintf("CREATE DATABASE `%s`", dashDbName))
-	assert.NoError(t, err)
-
-	defer func() {
-		_, _ = container.DB.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", dashDbName))
-	}()
-
-	dashDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
-		container.Username, container.Password, container.Host, container.Port, dashDbName)
-	dashDB, err := sqlx.Connect("mysql", dashDSN)
-	assert.NoError(t, err)
-	defer dashDB.Close()
-
-	_, err = dashDB.Exec(`
-		CREATE TABLE dash_test (
-			id INT AUTO_INCREMENT PRIMARY KEY,
-			data VARCHAR(255) NOT NULL
-		)
-	`)
-	assert.NoError(t, err)
-
-	_, err = dashDB.Exec(`INSERT INTO dash_test (data) VALUES ('test1'), ('test2')`)
-	assert.NoError(t, err)
-
-	mysqlModel := &MysqlDatabase{
-		Version:  tools.MysqlVersion80,
-		Host:     container.Host,
-		Port:     container.Port,
-		Username: container.Username,
-		Password: container.Password,
-		Database: &dashDbName,
-		IsHttps:  false,
-	}
-
-	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
-	ctx := context.Background()
-
-	username, password, err := mysqlModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
-	assert.NoError(t, err)
-	assert.NotEmpty(t, username)
-	assert.NotEmpty(t, password)
-	assert.True(t, strings.HasPrefix(username, "databasus-"))
-
-	readOnlyDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
-		username, password, container.Host, container.Port, dashDbName)
-	readOnlyConn, err := sqlx.Connect("mysql", readOnlyDSN)
-	assert.NoError(t, err)
-	defer readOnlyConn.Close()
-
-	var count int
-	err = readOnlyConn.Get(&count, "SELECT COUNT(*) FROM dash_test")
-	assert.NoError(t, err)
-	assert.Equal(t, 2, count)
-
-	_, err = readOnlyConn.Exec("INSERT INTO dash_test (data) VALUES ('should-fail')")
-	assert.Error(t, err)
-	assert.Contains(t, strings.ToLower(err.Error()), "denied")
-
-	_, err = dashDB.Exec(fmt.Sprintf("DROP USER IF EXISTS '%s'@'%%'", username))
-	assert.NoError(t, err)
-}
-
-func Test_ReadOnlyUser_CannotDropOrAlterTables(t *testing.T) {
-	env := config.GetEnv()
-	container := connectToMysqlContainer(t, env.TestMysql80Port, tools.MysqlVersion80)
-	defer container.DB.Close()
-
-	_, err := container.DB.Exec(`DROP TABLE IF EXISTS drop_test`)
-	assert.NoError(t, err)
-	_, err = container.DB.Exec(`
-		CREATE TABLE drop_test (
-			id INT AUTO_INCREMENT PRIMARY KEY,
-			data VARCHAR(255) NOT NULL
-		)
-	`)
-	assert.NoError(t, err)
-	_, err = container.DB.Exec(`INSERT INTO drop_test (data) VALUES ('test1')`)
-	assert.NoError(t, err)
-
-	mysqlModel := createMysqlModel(container)
-	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
-	ctx := context.Background()
-
-	username, password, err := mysqlModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
-	assert.NoError(t, err)
-
-	readOnlyDSN := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
-		username, password, container.Host, container.Port, container.Database)
-	readOnlyConn, err := sqlx.Connect("mysql", readOnlyDSN)
-	assert.NoError(t, err)
-	defer readOnlyConn.Close()
-
-	_, err = readOnlyConn.Exec("DROP TABLE drop_test")
-	assert.Error(t, err)
-	assert.Contains(t, strings.ToLower(err.Error()), "denied")
-
-	_, err = readOnlyConn.Exec("ALTER TABLE drop_test ADD COLUMN new_col VARCHAR(100)")
-	assert.Error(t, err)
-	assert.Contains(t, strings.ToLower(err.Error()), "denied")
-
-	_, err = readOnlyConn.Exec("TRUNCATE TABLE drop_test")
-	assert.Error(t, err)
-	assert.Contains(t, strings.ToLower(err.Error()), "denied")
-
-	_, err = container.DB.Exec(fmt.Sprintf("DROP USER IF EXISTS '%s'@'%%'", username))
-	assert.NoError(t, err)
-}
-
-type MysqlContainer struct {
-	Host     string
-	Port     int
-	Username string
-	Password string
-	Database string
-	Version  tools.MysqlVersion
-	DB       *sqlx.DB
-}
-
-func connectToMysqlContainer(
-	t *testing.T,
-	port string,
-	version tools.MysqlVersion,
-) *MysqlContainer {
-	if port == "" {
-		t.Skipf("MySQL port not configured for version %s", version)
-	}
-
-	dbName := "testdb"
-	host := "127.0.0.1"
-	username := "root"
-	password := "rootpassword"
-
-	portInt, err := strconv.Atoi(port)
-	assert.NoError(t, err)
-
-	dsn := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?parseTime=true",
-		username, password, host, portInt, dbName)
-
-	db, err := sqlx.Connect("mysql", dsn)
-	if err != nil {
-		t.Skipf("Failed to connect to MySQL %s: %v", version, err)
-	}
-
-	return &MysqlContainer{
-		Host:     host,
-		Port:     portInt,
-		Username: username,
-		Password: password,
-		Database: dbName,
-		Version:  version,
-		DB:       db,
-	}
-}
-
-func createMysqlModel(container *MysqlContainer) *MysqlDatabase {
-	return &MysqlDatabase{
-		Version:  container.Version,
-		Host:     container.Host,
-		Port:     container.Port,
-		Username: container.Username,
-		Password: container.Password,
-		Database: &container.Database,
-		IsHttps:  false,
-	}
-}

backend/internal/features/databases/databases/postgresql/model.go

@@ -13,6 +13,7 @@ import (
 
 	"github.com/google/uuid"
 	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgconn"
 	"gorm.io/gorm"
 )
 
@@ -85,6 +86,42 @@ func (p *PostgresqlDatabase) Validate() error {
 		return errors.New("cpu count must be greater than 0")
 	}
 
+	// Prevent Databasus from backing up itself
+	// Databasus runs an internal PostgreSQL instance that should not be backed up through the UI
+	// because it would expose internal metadata to non-system administrators.
+	// To properly backup Databasus, see: https://databasus.com/faq#backup-databasus
+	if p.Database != nil && *p.Database != "" {
+		localhostHosts := []string{
+			"localhost",
+			"127.0.0.1",
+			"172.17.0.1",
+			"host.docker.internal",
+			"::1",     // IPv6 loopback (equivalent to 127.0.0.1)
+			"::",      // IPv6 all interfaces (equivalent to 0.0.0.0)
+			"0.0.0.0", // IPv4 all interfaces
+		}
+
+		isLocalhost := false
+
+		for _, host := range localhostHosts {
+			if strings.EqualFold(p.Host, host) {
+				isLocalhost = true
+				break
+			}
+		}
+
+		// Also check if the host is in the entire 127.0.0.0/8 loopback range
+		if strings.HasPrefix(p.Host, "127.") {
+			isLocalhost = true
+		}
+
+		if isLocalhost && strings.EqualFold(*p.Database, "databasus") {
+			return errors.New(
+				"backing up Databasus internal database is not allowed. To backup Databasus itself, see https://databasus.com/faq#backup-databasus",
+			)
+		}
+	}
+
 	return nil
 }
 
@@ -137,16 +174,13 @@ func (p *PostgresqlDatabase) EncryptSensitiveFields(
 	return nil
 }
 
-// PopulateVersionIfEmpty detects and sets the PostgreSQL version if not already set.
+// PopulateDbData detects and sets the PostgreSQL version.
 // This should be called before encrypting sensitive fields.
-func (p *PostgresqlDatabase) PopulateVersionIfEmpty(
+func (p *PostgresqlDatabase) PopulateDbData(
 	logger *slog.Logger,
 	encryptor encryption.FieldEncryptor,
 	databaseID uuid.UUID,
 ) error {
-	if p.Version != "" {
-		return nil
-	}
 	return p.PopulateVersion(logger, encryptor, databaseID)
 }
 
@@ -192,29 +226,33 @@ func (p *PostgresqlDatabase) PopulateVersion(
 // IsUserReadOnly checks if the database user has read-only privileges.
 //
 // This method performs a comprehensive security check by examining:
-// - Role-level attributes (superuser, createrole, createdb)
+// - Role-level attributes (superuser, createrole, createdb, bypassrls, replication)
 // - Database-level privileges (CREATE, TEMP)
+// - Schema-level privileges (CREATE on any non-system schema)
 // - Table-level write permissions (INSERT, UPDATE, DELETE, TRUNCATE, REFERENCES, TRIGGER)
+// - Function-level privileges (EXECUTE on SECURITY DEFINER functions)
 //
 // A user is considered read-only only if they have ZERO write privileges
-// across all three levels. This ensures the database user follows the
+// across all levels. This ensures the database user follows the
 // principle of least privilege for backup operations.
+//
+// Returns: (isReadOnly, detectedPrivileges, error)
 func (p *PostgresqlDatabase) IsUserReadOnly(
 	ctx context.Context,
 	logger *slog.Logger,
 	encryptor encryption.FieldEncryptor,
 	databaseID uuid.UUID,
-) (bool, error) {
+) (bool, []string, error) {
 	password, err := decryptPasswordIfNeeded(p.Password, encryptor, databaseID)
 	if err != nil {
-		return false, fmt.Errorf("failed to decrypt password: %w", err)
+		return false, nil, fmt.Errorf("failed to decrypt password: %w", err)
 	}
 
 	connStr := buildConnectionStringForDB(p, *p.Database, password)
 
 	conn, err := pgx.Connect(ctx, connStr)
 	if err != nil {
-		return false, fmt.Errorf("failed to connect to database: %w", err)
+		return false, nil, fmt.Errorf("failed to connect to database: %w", err)
 	}
 	defer func() {
 		if closeErr := conn.Close(ctx); closeErr != nil {
@@ -222,22 +260,38 @@ func (p *PostgresqlDatabase) IsUserReadOnly(
 		}
 	}()
 
+	var privileges []string
+
 	// LEVEL 1: Check role-level attributes
-	var isSuperuser, canCreateRole, canCreateDB bool
+	var isSuperuser, canCreateRole, canCreateDB, canBypassRLS, canReplication bool
 	err = conn.QueryRow(ctx, `
 		SELECT
 			rolsuper,
 			rolcreaterole,
-			rolcreatedb
+			rolcreatedb,
+			rolbypassrls,
+			rolreplication
 		FROM pg_roles
 		WHERE rolname = current_user
-	`).Scan(&isSuperuser, &canCreateRole, &canCreateDB)
+	`).Scan(&isSuperuser, &canCreateRole, &canCreateDB, &canBypassRLS, &canReplication)
 	if err != nil {
-		return false, fmt.Errorf("failed to check role attributes: %w", err)
+		return false, nil, fmt.Errorf("failed to check role attributes: %w", err)
 	}
 
-	if isSuperuser || canCreateRole || canCreateDB {
-		return false, nil
+	if isSuperuser {
+		privileges = append(privileges, "SUPERUSER")
+	}
+	if canCreateRole {
+		privileges = append(privileges, "CREATEROLE")
+	}
+	if canCreateDB {
+		privileges = append(privileges, "CREATEDB")
+	}
+	if canBypassRLS {
+		privileges = append(privileges, "BYPASSRLS")
+	}
+	if canReplication {
+		privileges = append(privileges, "REPLICATION")
 	}
 
 	// LEVEL 2: Check database-level privileges
@@ -248,46 +302,34 @@ func (p *PostgresqlDatabase) IsUserReadOnly(
 			has_database_privilege(current_user, current_database(), 'TEMP') as can_temp
 	`).Scan(&canCreate, &canTemp)
 	if err != nil {
-		return false, fmt.Errorf("failed to check database privileges: %w", err)
+		return false, nil, fmt.Errorf("failed to check database privileges: %w", err)
 	}
 
-	if canCreate || canTemp {
-		return false, nil
+	if canCreate {
+		privileges = append(privileges, "CREATE (database)")
+	}
+	if canTemp {
+		privileges = append(privileges, "TEMP")
 	}
 
 	// LEVEL 2.5: Check schema-level CREATE privileges
-	schemaRows, err := conn.Query(ctx, `
-		SELECT DISTINCT nspname
-		FROM pg_namespace n
-		WHERE has_schema_privilege(current_user, n.nspname, 'CREATE')
-		AND nspname NOT IN ('pg_catalog', 'information_schema', 'pg_toast')
-	`)
+	var hasSchemaCreate bool
+	err = conn.QueryRow(ctx, `
+		SELECT EXISTS(
+			SELECT 1
+			FROM pg_namespace n
+			WHERE has_schema_privilege(current_user, n.nspname, 'CREATE')
+			AND nspname NOT IN ('pg_catalog', 'information_schema', 'pg_toast')
+		)
+	`).Scan(&hasSchemaCreate)
 	if err != nil {
-		return false, fmt.Errorf("failed to check schema privileges: %w", err)
+		return false, nil, fmt.Errorf("failed to check schema privileges: %w", err)
 	}
-	defer schemaRows.Close()
-
-	// If user has CREATE privilege on any schema, they're not read-only
-	if schemaRows.Next() {
-		return false, nil
-	}
-
-	if err := schemaRows.Err(); err != nil {
-		return false, fmt.Errorf("error iterating schema privileges: %w", err)
+	if hasSchemaCreate {
+		privileges = append(privileges, "CREATE (schema)")
 	}
 
 	// LEVEL 3: Check table-level write permissions
-	rows, err := conn.Query(ctx, `
-		SELECT DISTINCT privilege_type
-		FROM information_schema.role_table_grants
-		WHERE grantee = current_user
-		AND table_schema NOT IN ('pg_catalog', 'information_schema')
-	`)
-	if err != nil {
-		return false, fmt.Errorf("failed to check table privileges: %w", err)
-	}
-	defer rows.Close()
-
 	writePrivileges := map[string]bool{
 		"INSERT":     true,
 		"UPDATE":     true,
@@ -297,32 +339,69 @@ func (p *PostgresqlDatabase) IsUserReadOnly(
 		"TRIGGER":    true,
 	}
 
+	var tablePrivileges []string
+	rows, err := conn.Query(ctx, `
+		SELECT DISTINCT privilege_type
+		FROM information_schema.role_table_grants
+		WHERE grantee = current_user
+		AND table_schema NOT IN ('pg_catalog', 'information_schema')
+	`)
+	if err != nil {
+		return false, nil, fmt.Errorf("failed to check table privileges: %w", err)
+	}
+
 	for rows.Next() {
 		var privilege string
 		if err := rows.Scan(&privilege); err != nil {
-			return false, fmt.Errorf("failed to scan privilege: %w", err)
-		}
-
-		if writePrivileges[privilege] {
-			return false, nil
+			rows.Close()
+			return false, nil, fmt.Errorf("failed to scan privilege: %w", err)
 		}
+		tablePrivileges = append(tablePrivileges, privilege)
 	}
+	rows.Close()
 
 	if err := rows.Err(); err != nil {
-		return false, fmt.Errorf("error iterating privileges: %w", err)
+		return false, nil, fmt.Errorf("error iterating privileges: %w", err)
 	}
 
-	return true, nil
+	for _, privilege := range tablePrivileges {
+		if writePrivileges[privilege] {
+			privileges = append(privileges, privilege)
+		}
+	}
+
+	// LEVEL 4: Check for EXECUTE privilege on functions that are SECURITY DEFINER
+	var funcCount int
+	err = conn.QueryRow(ctx, `
+		SELECT COUNT(*)
+		FROM pg_proc p
+		JOIN pg_namespace n ON p.pronamespace = n.oid
+		WHERE n.nspname NOT IN ('pg_catalog', 'information_schema')
+		AND p.prosecdef = true
+		AND has_function_privilege(current_user, p.oid, 'EXECUTE')
+	`).Scan(&funcCount)
+	if err != nil {
+		return false, nil, fmt.Errorf("failed to check function privileges: %w", err)
+	}
+	if funcCount > 0 {
+		privileges = append(privileges, "EXECUTE (SECURITY DEFINER)")
+	}
+
+	isReadOnly := len(privileges) == 0
+	return isReadOnly, privileges, nil
 }
 
 // CreateReadOnlyUser creates a new PostgreSQL user with read-only privileges.
 //
 // This method performs the following operations atomically in a single transaction:
 // 1. Creates a PostgreSQL user with a UUID-based password
-// 2. Grants CONNECT privilege on the database
-// 3. Grants USAGE on all non-system schemas
-// 4. Grants SELECT on all existing tables and sequences
-// 5. Sets default privileges for future tables and sequences
+// 2. Revokes CREATE privilege on public schema from PUBLIC role
+// 3. Grants CONNECT privilege on the database
+// 4. Discovers all user-created schemas
+// 5. Grants USAGE on all non-system schemas
+// 6. Grants SELECT on all existing tables and sequences
+// 7. Sets default privileges for future tables and sequences
+// 8. Verifies user creation before committing
 //
 // Security features:
 // - Username format: "databasus-{8-char-uuid}" for uniqueness
@@ -383,7 +462,7 @@ func (p *PostgresqlDatabase) CreateReadOnlyUser(
 			}
 		}
 
-		newPassword := uuid.New().String()
+		newPassword := encryption.GenerateComplexPassword()
 
 		tx, err := conn.Begin(ctx)
 		if err != nil {
@@ -412,33 +491,56 @@ func (p *PostgresqlDatabase) CreateReadOnlyUser(
 			return "", "", fmt.Errorf("failed to create user: %w", err)
 		}
 
-		// Step 1.5: Revoke CREATE privilege from PUBLIC role on public schema
+		// Step 2: Check if public schema exists and revoke CREATE privilege if it does
 		// This is necessary because all PostgreSQL users inherit CREATE privilege on the
 		// public schema through the PUBLIC role. This is a one-time operation that affects
 		// the entire database, making it more secure by default.
 		// Note: This only affects the public schema; other schemas are unaffected.
-		_, err = tx.Exec(ctx, `REVOKE CREATE ON SCHEMA public FROM PUBLIC`)
-		if err != nil {
-			logger.Error("Failed to revoke CREATE on public from PUBLIC", "error", err)
-			if !strings.Contains(err.Error(), "schema \"public\" does not exist") &&
-				!strings.Contains(err.Error(), "permission denied") {
-				return "", "", fmt.Errorf("failed to revoke CREATE from PUBLIC: %w", err)
-			}
-		}
-
-		// Now revoke from the specific user as well (belt and suspenders)
-		_, err = tx.Exec(ctx, fmt.Sprintf(`REVOKE CREATE ON SCHEMA public FROM "%s"`, baseUsername))
-		if err != nil {
-			logger.Error(
-				"Failed to revoke CREATE on public schema from user",
-				"error",
-				err,
-				"username",
-				baseUsername,
+		var publicSchemaExists bool
+		err = tx.QueryRow(ctx, `
+			SELECT EXISTS(
+				SELECT 1 FROM information_schema.schemata 
+				WHERE schema_name = 'public'
 			)
+		`).Scan(&publicSchemaExists)
+		if err != nil {
+			return "", "", fmt.Errorf("failed to check if public schema exists: %w", err)
 		}
 
-		// Step 2: Grant database connection privilege and revoke TEMP
+		if publicSchemaExists {
+			// Revoke CREATE from PUBLIC role (affects all users)
+			_, err = tx.Exec(ctx, `REVOKE CREATE ON SCHEMA public FROM PUBLIC`)
+			if err != nil {
+				if strings.Contains(err.Error(), "permission denied") {
+					logger.Warn(
+						"Failed to revoke CREATE on public from PUBLIC (permission denied)",
+						"error",
+						err,
+					)
+				} else {
+					return "", "", fmt.Errorf("failed to revoke CREATE from PUBLIC on existing public schema: %w", err)
+				}
+			}
+
+			// Now revoke from the specific user as well (belt and suspenders)
+			_, err = tx.Exec(
+				ctx,
+				fmt.Sprintf(`REVOKE CREATE ON SCHEMA public FROM "%s"`, baseUsername),
+			)
+			if err != nil {
+				logger.Warn(
+					"Failed to revoke CREATE on public schema from user",
+					"error",
+					err,
+					"username",
+					baseUsername,
+				)
+			}
+		} else {
+			logger.Info("Public schema does not exist, skipping CREATE privilege revocation")
+		}
+
+		// Step 3: Grant database connection privilege and revoke TEMP
 		_, err = tx.Exec(
 			ctx,
 			fmt.Sprintf(`GRANT CONNECT ON DATABASE "%s" TO "%s"`, *p.Database, baseUsername),
@@ -462,7 +564,7 @@ func (p *PostgresqlDatabase) CreateReadOnlyUser(
 			logger.Warn("Failed to revoke TEMP privilege", "error", err, "username", baseUsername)
 		}
 
-		// Step 3: Discover all user-created schemas
+		// Step 4: Discover all user-created schemas
 		rows, err := tx.Query(ctx, `
 			SELECT schema_name
 			FROM information_schema.schemata
@@ -487,7 +589,7 @@ func (p *PostgresqlDatabase) CreateReadOnlyUser(
 			return "", "", fmt.Errorf("error iterating schemas: %w", err)
 		}
 
-		// Step 4: Grant USAGE on each schema and explicitly prevent CREATE
+		// Step 5: Grant USAGE on each schema and explicitly prevent CREATE
 		for _, schema := range schemas {
 			// Revoke CREATE specifically (handles inheritance from PUBLIC role)
 			_, err = tx.Exec(
@@ -516,7 +618,7 @@ func (p *PostgresqlDatabase) CreateReadOnlyUser(
 			}
 		}
 
-		// Step 5: Grant SELECT on ALL existing tables and sequences
+		// Step 6: Grant SELECT on ALL existing tables and sequences
 		grantSelectSQL := fmt.Sprintf(`
 			DO $$
 			DECLARE
@@ -538,7 +640,7 @@ func (p *PostgresqlDatabase) CreateReadOnlyUser(
 			return "", "", fmt.Errorf("failed to grant select on tables: %w", err)
 		}
 
-		// Step 6: Set default privileges for FUTURE tables and sequences
+		// Step 7: Set default privileges for FUTURE tables and sequences
 		defaultPrivilegesSQL := fmt.Sprintf(`
 			DO $$
 			DECLARE
@@ -560,7 +662,7 @@ func (p *PostgresqlDatabase) CreateReadOnlyUser(
 			return "", "", fmt.Errorf("failed to set default privileges: %w", err)
 		}
 
-		// Step 7: Verify user creation before committing
+		// Step 8: Verify user creation before committing
 		var verifyUsername string
 		err = tx.QueryRow(ctx, fmt.Sprintf(`SELECT rolname FROM pg_roles WHERE rolname = '%s'`, baseUsername)).
 			Scan(&verifyUsername)
@@ -631,13 +733,9 @@ func testSingleDatabaseConnection(
 	}
 	postgresDb.Version = detectedVersion
 
-	// Test if we can perform basic operations (like pg_dump would need)
-	if err := testBasicOperations(ctx, conn, *postgresDb.Database); err != nil {
-		return fmt.Errorf(
-			"basic operations test failed for database '%s': %w",
-			*postgresDb.Database,
-			err,
-		)
+	// Verify user has sufficient permissions for backup operations
+	if err := checkBackupPermissions(ctx, conn, postgresDb.IncludeSchemas); err != nil {
+		return err
 	}
 
 	return nil
@@ -670,18 +768,136 @@ func detectDatabaseVersion(ctx context.Context, conn *pgx.Conn) (tools.Postgresq
 	}
 }
 
-// testBasicOperations tests basic operations that backup tools need
-func testBasicOperations(ctx context.Context, conn *pgx.Conn, dbName string) error {
-	var hasCreatePriv bool
+// checkBackupPermissions verifies the user has sufficient privileges for pg_dump backup.
+// Required privileges: CONNECT on database, USAGE on schemas, SELECT on tables.
+// If includeSchemas is specified, only checks permissions on those schemas.
+func checkBackupPermissions(
+	ctx context.Context,
+	conn *pgx.Conn,
+	includeSchemas []string,
+) error {
+	var missingPrivileges []string
 
+	// Check CONNECT privilege on database
+	var hasConnect bool
 	err := conn.QueryRow(ctx, "SELECT has_database_privilege(current_user, current_database(), 'CONNECT')").
-		Scan(&hasCreatePriv)
+		Scan(&hasConnect)
 	if err != nil {
 		return fmt.Errorf("cannot check database privileges: %w", err)
 	}
+	if !hasConnect {
+		missingPrivileges = append(missingPrivileges, "CONNECT on database")
+	}
 
-	if !hasCreatePriv {
-		return fmt.Errorf("user does not have CONNECT privilege on database '%s'", dbName)
+	// Check USAGE privilege on at least one non-system schema
+	var schemaCount int
+	if len(includeSchemas) > 0 {
+		// Check only the specified schemas
+		err = conn.QueryRow(ctx, `
+			SELECT COUNT(*)
+			FROM pg_namespace n
+			WHERE has_schema_privilege(current_user, n.nspname, 'USAGE')
+			AND n.nspname NOT IN ('pg_catalog', 'information_schema', 'pg_toast')
+			AND n.nspname NOT LIKE 'pg_temp_%'
+			AND n.nspname NOT LIKE 'pg_toast_temp_%'
+			AND n.nspname = ANY($1::text[])
+		`, includeSchemas).Scan(&schemaCount)
+	} else {
+		// Check all non-system schemas
+		err = conn.QueryRow(ctx, `
+			SELECT COUNT(*)
+			FROM pg_namespace n
+			WHERE has_schema_privilege(current_user, n.nspname, 'USAGE')
+			AND n.nspname NOT IN ('pg_catalog', 'information_schema', 'pg_toast')
+			AND n.nspname NOT LIKE 'pg_temp_%'
+			AND n.nspname NOT LIKE 'pg_toast_temp_%'
+		`).Scan(&schemaCount)
+	}
+
+	if err != nil {
+		return fmt.Errorf("cannot check schema privileges: %w", err)
+	}
+	if schemaCount == 0 {
+		missingPrivileges = append(missingPrivileges, "USAGE on at least one schema")
+	}
+
+	// Check SELECT privilege on at least one table (if tables exist)
+	// Use pg_tables from pg_catalog which shows all tables regardless of user privileges
+	var tableCount int
+
+	if len(includeSchemas) > 0 {
+		// Check only tables in the specified schemas
+		err = conn.QueryRow(ctx, `
+			SELECT COUNT(*)
+			FROM pg_catalog.pg_tables t
+			WHERE t.schemaname NOT IN ('pg_catalog', 'information_schema')
+			AND t.schemaname NOT LIKE 'pg_temp_%'
+			AND t.schemaname NOT LIKE 'pg_toast_temp_%'
+			AND t.schemaname = ANY($1::text[])
+		`, includeSchemas).Scan(&tableCount)
+	} else {
+		// Check all tables in non-system schemas
+		err = conn.QueryRow(ctx, `
+			SELECT COUNT(*)
+			FROM pg_catalog.pg_tables t
+			WHERE t.schemaname NOT IN ('pg_catalog', 'information_schema')
+			AND t.schemaname NOT LIKE 'pg_temp_%'
+			AND t.schemaname NOT LIKE 'pg_toast_temp_%'
+		`).Scan(&tableCount)
+	}
+
+	if err != nil {
+		return fmt.Errorf("cannot check table count: %w", err)
+	}
+
+	if tableCount > 0 {
+		// Check if user has SELECT on at least one of these tables
+		var selectableTableCount int
+
+		if len(includeSchemas) > 0 {
+			// Check only tables in the specified schemas
+			err = conn.QueryRow(ctx, `
+				SELECT COUNT(*)
+				FROM pg_catalog.pg_tables t
+				WHERE t.schemaname NOT IN ('pg_catalog', 'information_schema')
+				AND t.schemaname NOT LIKE 'pg_temp_%'
+				AND t.schemaname NOT LIKE 'pg_toast_temp_%'
+				AND t.schemaname = ANY($1::text[])
+				AND has_table_privilege(current_user, quote_ident(t.schemaname) || '.' || quote_ident(t.tablename), 'SELECT')
+			`, includeSchemas).Scan(&selectableTableCount)
+		} else {
+			// Check all tables in non-system schemas
+			err = conn.QueryRow(ctx, `
+				SELECT COUNT(*)
+				FROM pg_catalog.pg_tables t
+				WHERE t.schemaname NOT IN ('pg_catalog', 'information_schema')
+				AND t.schemaname NOT LIKE 'pg_temp_%'
+				AND t.schemaname NOT LIKE 'pg_toast_temp_%'
+				AND has_table_privilege(current_user, quote_ident(t.schemaname) || '.' || quote_ident(t.tablename), 'SELECT')
+			`).Scan(&selectableTableCount)
+		}
+
+		if err != nil {
+			// If the user doesn't have USAGE on the schema, has_table_privilege will fail
+			// with "permission denied for schema". This means they definitely don't have
+			// SELECT privileges, so treat this as missing permissions rather than an error.
+			var pgErr *pgconn.PgError
+			if errors.As(err, &pgErr) && pgErr.Code == "42501" { // insufficient_privilege
+				selectableTableCount = 0
+			} else {
+				return fmt.Errorf("cannot check SELECT privileges: %w", err)
+			}
+		}
+		if selectableTableCount == 0 {
+			missingPrivileges = append(missingPrivileges, "SELECT on tables")
+		}
+	}
+
+	if len(missingPrivileges) > 0 {
+		return fmt.Errorf(
+			"insufficient permissions for backup. Missing: %s. Required: CONNECT on database, USAGE on schemas, SELECT on tables",
+			strings.Join(missingPrivileges, ", "),
+		)
 	}
 
 	return nil

backend/internal/features/databases/databases/postgresql/readonly_user_test.go

@@ -1,508 +0,0 @@
-package postgresql
-
-import (
-	"context"
-	"fmt"
-	"log/slog"
-	"os"
-	"strconv"
-	"strings"
-	"testing"
-
-	"github.com/google/uuid"
-	"github.com/jmoiron/sqlx"
-	_ "github.com/lib/pq"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-
-	"databasus-backend/internal/config"
-	"databasus-backend/internal/util/tools"
-)
-
-func Test_IsUserReadOnly_AdminUser_ReturnsFalse(t *testing.T) {
-	env := config.GetEnv()
-	cases := []struct {
-		name    string
-		version string
-		port    string
-	}{
-		{"PostgreSQL 12", "12", env.TestPostgres12Port},
-		{"PostgreSQL 13", "13", env.TestPostgres13Port},
-		{"PostgreSQL 14", "14", env.TestPostgres14Port},
-		{"PostgreSQL 15", "15", env.TestPostgres15Port},
-		{"PostgreSQL 16", "16", env.TestPostgres16Port},
-		{"PostgreSQL 17", "17", env.TestPostgres17Port},
-	}
-
-	for _, tc := range cases {
-		t.Run(tc.name, func(t *testing.T) {
-			t.Parallel()
-
-			container := connectToPostgresContainer(t, tc.port)
-			defer container.DB.Close()
-
-			pgModel := createPostgresModel(container)
-			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
-			ctx := context.Background()
-
-			isReadOnly, err := pgModel.IsUserReadOnly(ctx, logger, nil, uuid.New())
-			assert.NoError(t, err)
-			assert.False(t, isReadOnly, "Admin user should not be read-only")
-		})
-	}
-}
-
-func Test_CreateReadOnlyUser_UserCanReadButNotWrite(t *testing.T) {
-	env := config.GetEnv()
-	cases := []struct {
-		name    string
-		version string
-		port    string
-	}{
-		{"PostgreSQL 12", "12", env.TestPostgres12Port},
-		{"PostgreSQL 13", "13", env.TestPostgres13Port},
-		{"PostgreSQL 14", "14", env.TestPostgres14Port},
-		{"PostgreSQL 15", "15", env.TestPostgres15Port},
-		{"PostgreSQL 16", "16", env.TestPostgres16Port},
-		{"PostgreSQL 17", "17", env.TestPostgres17Port},
-	}
-
-	for _, tc := range cases {
-		t.Run(tc.name, func(t *testing.T) {
-			t.Parallel()
-
-			container := connectToPostgresContainer(t, tc.port)
-			defer container.DB.Close()
-
-			_, err := container.DB.Exec(`
-			DROP TABLE IF EXISTS readonly_test CASCADE;
-			DROP TABLE IF EXISTS hack_table CASCADE;
-			DROP TABLE IF EXISTS future_table CASCADE;
-			CREATE TABLE readonly_test (
-				id SERIAL PRIMARY KEY,
-				data TEXT NOT NULL
-			);
-			INSERT INTO readonly_test (data) VALUES ('test1'), ('test2');
-		`)
-			assert.NoError(t, err)
-
-			pgModel := createPostgresModel(container)
-			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
-			ctx := context.Background()
-
-			username, password, err := pgModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
-			assert.NoError(t, err)
-			assert.NotEmpty(t, username)
-			assert.NotEmpty(t, password)
-			assert.True(t, strings.HasPrefix(username, "databasus-"))
-
-			readOnlyModel := &PostgresqlDatabase{
-				Version:  pgModel.Version,
-				Host:     pgModel.Host,
-				Port:     pgModel.Port,
-				Username: username,
-				Password: password,
-				Database: pgModel.Database,
-				IsHttps:  false,
-			}
-
-			isReadOnly, err := readOnlyModel.IsUserReadOnly(ctx, logger, nil, uuid.New())
-			assert.NoError(t, err)
-			assert.True(t, isReadOnly, "Created user should be read-only")
-
-			readOnlyDSN := fmt.Sprintf(
-				"host=%s port=%d user=%s password=%s dbname=%s sslmode=disable",
-				container.Host,
-				container.Port,
-				username,
-				password,
-				container.Database,
-			)
-			readOnlyConn, err := sqlx.Connect("postgres", readOnlyDSN)
-			assert.NoError(t, err)
-			defer readOnlyConn.Close()
-
-			var count int
-			err = readOnlyConn.Get(&count, "SELECT COUNT(*) FROM readonly_test")
-			assert.NoError(t, err)
-			assert.Equal(t, 2, count)
-
-			_, err = readOnlyConn.Exec("INSERT INTO readonly_test (data) VALUES ('should-fail')")
-			assert.Error(t, err)
-			assert.Contains(t, err.Error(), "permission denied")
-
-			_, err = readOnlyConn.Exec("UPDATE readonly_test SET data = 'hacked' WHERE id = 1")
-			assert.Error(t, err)
-			assert.Contains(t, err.Error(), "permission denied")
-
-			_, err = readOnlyConn.Exec("DELETE FROM readonly_test WHERE id = 1")
-			assert.Error(t, err)
-			assert.Contains(t, err.Error(), "permission denied")
-
-			_, err = readOnlyConn.Exec("CREATE TABLE hack_table (id INT)")
-			assert.Error(t, err)
-			assert.Contains(t, err.Error(), "permission denied")
-
-			// Clean up: Drop user with CASCADE to handle default privilege dependencies
-			_, err = container.DB.Exec(fmt.Sprintf(`DROP OWNED BY "%s" CASCADE`, username))
-			if err != nil {
-				t.Logf("Warning: Failed to drop owned objects: %v", err)
-			}
-
-			_, err = container.DB.Exec(fmt.Sprintf(`DROP USER IF EXISTS "%s"`, username))
-			assert.NoError(t, err)
-		})
-	}
-}
-
-func Test_ReadOnlyUser_FutureTables_HaveSelectPermission(t *testing.T) {
-	env := config.GetEnv()
-	container := connectToPostgresContainer(t, env.TestPostgres16Port)
-	defer container.DB.Close()
-
-	pgModel := createPostgresModel(container)
-	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
-	ctx := context.Background()
-
-	username, password, err := pgModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
-	assert.NoError(t, err)
-
-	_, err = container.DB.Exec(`
-		CREATE TABLE future_table (
-			id SERIAL PRIMARY KEY,
-			data TEXT NOT NULL
-		);
-		INSERT INTO future_table (data) VALUES ('future_data');
-	`)
-	assert.NoError(t, err)
-
-	readOnlyDSN := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=disable",
-		container.Host, container.Port, username, password, container.Database)
-	readOnlyConn, err := sqlx.Connect("postgres", readOnlyDSN)
-	assert.NoError(t, err)
-	defer readOnlyConn.Close()
-
-	var data string
-	err = readOnlyConn.Get(&data, "SELECT data FROM future_table LIMIT 1")
-	assert.NoError(t, err)
-	assert.Equal(t, "future_data", data)
-
-	// Clean up: Drop user with CASCADE to handle default privilege dependencies
-	_, err = container.DB.Exec(fmt.Sprintf(`DROP OWNED BY "%s" CASCADE`, username))
-	if err != nil {
-		t.Logf("Warning: Failed to drop owned objects: %v", err)
-	}
-
-	_, err = container.DB.Exec(fmt.Sprintf(`DROP USER IF EXISTS "%s"`, username))
-	assert.NoError(t, err)
-}
-
-func Test_ReadOnlyUser_MultipleSchemas_AllAccessible(t *testing.T) {
-	env := config.GetEnv()
-	container := connectToPostgresContainer(t, env.TestPostgres16Port)
-	defer container.DB.Close()
-
-	_, err := container.DB.Exec(`
-		DROP SCHEMA IF EXISTS schema_a CASCADE;
-		DROP SCHEMA IF EXISTS schema_b CASCADE;
-		CREATE SCHEMA schema_a;
-		CREATE SCHEMA schema_b;
-		CREATE TABLE schema_a.table_a (id INT, data TEXT);
-		CREATE TABLE schema_b.table_b (id INT, data TEXT);
-		INSERT INTO schema_a.table_a VALUES (1, 'data_a');
-		INSERT INTO schema_b.table_b VALUES (2, 'data_b');
-	`)
-	assert.NoError(t, err)
-
-	pgModel := createPostgresModel(container)
-	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
-	ctx := context.Background()
-
-	username, password, err := pgModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
-	assert.NoError(t, err)
-
-	readOnlyDSN := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=disable",
-		container.Host, container.Port, username, password, container.Database)
-	readOnlyConn, err := sqlx.Connect("postgres", readOnlyDSN)
-	assert.NoError(t, err)
-	defer readOnlyConn.Close()
-
-	var dataA string
-	err = readOnlyConn.Get(&dataA, "SELECT data FROM schema_a.table_a LIMIT 1")
-	assert.NoError(t, err)
-	assert.Equal(t, "data_a", dataA)
-
-	var dataB string
-	err = readOnlyConn.Get(&dataB, "SELECT data FROM schema_b.table_b LIMIT 1")
-	assert.NoError(t, err)
-	assert.Equal(t, "data_b", dataB)
-
-	// Clean up: Drop user with CASCADE to handle default privilege dependencies
-	_, err = container.DB.Exec(fmt.Sprintf(`DROP OWNED BY "%s" CASCADE`, username))
-	if err != nil {
-		t.Logf("Warning: Failed to drop owned objects: %v", err)
-	}
-
-	_, err = container.DB.Exec(fmt.Sprintf(`DROP USER IF EXISTS "%s"`, username))
-	assert.NoError(t, err)
-	_, err = container.DB.Exec(`DROP SCHEMA schema_a CASCADE; DROP SCHEMA schema_b CASCADE;`)
-	assert.NoError(t, err)
-}
-
-func Test_CreateReadOnlyUser_DatabaseNameWithDash_Success(t *testing.T) {
-	env := config.GetEnv()
-	container := connectToPostgresContainer(t, env.TestPostgres16Port)
-	defer container.DB.Close()
-
-	dashDbName := "test-db-with-dash"
-
-	_, err := container.DB.Exec(fmt.Sprintf(`DROP DATABASE IF EXISTS "%s"`, dashDbName))
-	assert.NoError(t, err)
-
-	_, err = container.DB.Exec(fmt.Sprintf(`CREATE DATABASE "%s"`, dashDbName))
-	assert.NoError(t, err)
-
-	defer func() {
-		_, _ = container.DB.Exec(fmt.Sprintf(`DROP DATABASE IF EXISTS "%s"`, dashDbName))
-	}()
-
-	dashDSN := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=disable",
-		container.Host, container.Port, container.Username, container.Password, dashDbName)
-	dashDB, err := sqlx.Connect("postgres", dashDSN)
-	assert.NoError(t, err)
-	defer dashDB.Close()
-
-	_, err = dashDB.Exec(`
-		CREATE TABLE dash_test (
-			id SERIAL PRIMARY KEY,
-			data TEXT NOT NULL
-		);
-		INSERT INTO dash_test (data) VALUES ('test1'), ('test2');
-	`)
-	assert.NoError(t, err)
-
-	pgModel := &PostgresqlDatabase{
-		Version:  tools.GetPostgresqlVersionEnum("16"),
-		Host:     container.Host,
-		Port:     container.Port,
-		Username: container.Username,
-		Password: container.Password,
-		Database: &dashDbName,
-		IsHttps:  false,
-	}
-
-	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
-	ctx := context.Background()
-
-	username, password, err := pgModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
-	assert.NoError(t, err)
-	assert.NotEmpty(t, username)
-	assert.NotEmpty(t, password)
-	assert.True(t, strings.HasPrefix(username, "databasus-"))
-
-	readOnlyDSN := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=disable",
-		container.Host, container.Port, username, password, dashDbName)
-	readOnlyConn, err := sqlx.Connect("postgres", readOnlyDSN)
-	assert.NoError(t, err)
-	defer readOnlyConn.Close()
-
-	var count int
-	err = readOnlyConn.Get(&count, "SELECT COUNT(*) FROM dash_test")
-	assert.NoError(t, err)
-	assert.Equal(t, 2, count)
-
-	_, err = readOnlyConn.Exec("INSERT INTO dash_test (data) VALUES ('should-fail')")
-	assert.Error(t, err)
-	assert.Contains(t, err.Error(), "permission denied")
-
-	_, err = dashDB.Exec(fmt.Sprintf(`DROP OWNED BY "%s" CASCADE`, username))
-	if err != nil {
-		t.Logf("Warning: Failed to drop owned objects: %v", err)
-	}
-
-	_, err = dashDB.Exec(fmt.Sprintf(`DROP USER IF EXISTS "%s"`, username))
-	assert.NoError(t, err)
-}
-
-func Test_CreateReadOnlyUser_Supabase_UserCanReadButNotWrite(t *testing.T) {
-	env := config.GetEnv()
-
-	if env.TestSupabaseHost == "" {
-		t.Skip("Skipping Supabase test: missing environment variables")
-	}
-
-	portInt, err := strconv.Atoi(env.TestSupabasePort)
-	assert.NoError(t, err)
-
-	dsn := fmt.Sprintf(
-		"host=%s port=%d user=%s password=%s dbname=%s sslmode=require",
-		env.TestSupabaseHost,
-		portInt,
-		env.TestSupabaseUsername,
-		env.TestSupabasePassword,
-		env.TestSupabaseDatabase,
-	)
-
-	adminDB, err := sqlx.Connect("postgres", dsn)
-	require.NoError(t, err)
-	defer adminDB.Close()
-
-	tableName := fmt.Sprintf(
-		"readonly_test_%s",
-		strings.ReplaceAll(uuid.New().String()[:8], "-", ""),
-	)
-	_, err = adminDB.Exec(fmt.Sprintf(`
-		DROP TABLE IF EXISTS public.%s CASCADE;
-		CREATE TABLE public.%s (
-			id SERIAL PRIMARY KEY,
-			data TEXT NOT NULL
-		);
-		INSERT INTO public.%s (data) VALUES ('test1'), ('test2');
-	`, tableName, tableName, tableName))
-	assert.NoError(t, err)
-
-	defer func() {
-		_, _ = adminDB.Exec(fmt.Sprintf(`DROP TABLE IF EXISTS public.%s CASCADE`, tableName))
-	}()
-
-	pgModel := &PostgresqlDatabase{
-		Host:     env.TestSupabaseHost,
-		Port:     portInt,
-		Username: env.TestSupabaseUsername,
-		Password: env.TestSupabasePassword,
-		Database: &env.TestSupabaseDatabase,
-		IsHttps:  true,
-	}
-
-	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
-	ctx := context.Background()
-
-	connectionUsername, newPassword, err := pgModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
-	assert.NoError(t, err)
-	assert.NotEmpty(t, connectionUsername)
-	assert.NotEmpty(t, newPassword)
-	assert.True(t, strings.HasPrefix(connectionUsername, "databasus-"))
-
-	baseUsername := connectionUsername
-	if idx := strings.Index(connectionUsername, "."); idx != -1 {
-		baseUsername = connectionUsername[:idx]
-	}
-
-	defer func() {
-		_, _ = adminDB.Exec(fmt.Sprintf(`DROP OWNED BY "%s" CASCADE`, baseUsername))
-		_, _ = adminDB.Exec(fmt.Sprintf(`DROP USER IF EXISTS "%s"`, baseUsername))
-	}()
-
-	readOnlyDSN := fmt.Sprintf(
-		"host=%s port=%d user=%s password=%s dbname=%s sslmode=require",
-		env.TestSupabaseHost,
-		portInt,
-		connectionUsername,
-		newPassword,
-		env.TestSupabaseDatabase,
-	)
-	readOnlyConn, err := sqlx.Connect("postgres", readOnlyDSN)
-	assert.NoError(t, err)
-	defer readOnlyConn.Close()
-
-	var count int
-	err = readOnlyConn.Get(&count, fmt.Sprintf("SELECT COUNT(*) FROM public.%s", tableName))
-	assert.NoError(t, err)
-	assert.Equal(t, 2, count)
-
-	_, err = readOnlyConn.Exec(
-		fmt.Sprintf("INSERT INTO public.%s (data) VALUES ('should-fail')", tableName),
-	)
-	assert.Error(t, err)
-	assert.Contains(t, err.Error(), "permission denied")
-
-	_, err = readOnlyConn.Exec(
-		fmt.Sprintf("UPDATE public.%s SET data = 'hacked' WHERE id = 1", tableName),
-	)
-	assert.Error(t, err)
-	assert.Contains(t, err.Error(), "permission denied")
-
-	_, err = readOnlyConn.Exec(fmt.Sprintf("DELETE FROM public.%s WHERE id = 1", tableName))
-	assert.Error(t, err)
-	assert.Contains(t, err.Error(), "permission denied")
-
-	_, err = readOnlyConn.Exec("CREATE TABLE public.hack_table (id INT)")
-	assert.Error(t, err)
-	assert.Contains(t, err.Error(), "permission denied")
-}
-
-type PostgresContainer struct {
-	Host     string
-	Port     int
-	Username string
-	Password string
-	Database string
-	DB       *sqlx.DB
-}
-
-func connectToPostgresContainer(t *testing.T, port string) *PostgresContainer {
-	dbName := "testdb"
-	password := "testpassword"
-	username := "testuser"
-	host := "localhost"
-
-	portInt, err := strconv.Atoi(port)
-	assert.NoError(t, err)
-
-	dsn := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=disable",
-		host, portInt, username, password, dbName)
-
-	db, err := sqlx.Connect("postgres", dsn)
-	assert.NoError(t, err)
-
-	var versionStr string
-	err = db.Get(&versionStr, "SELECT version()")
-	assert.NoError(t, err)
-
-	return &PostgresContainer{
-		Host:     host,
-		Port:     portInt,
-		Username: username,
-		Password: password,
-		Database: dbName,
-		DB:       db,
-	}
-}
-
-func createPostgresModel(container *PostgresContainer) *PostgresqlDatabase {
-	var versionStr string
-	err := container.DB.Get(&versionStr, "SELECT version()")
-	if err != nil {
-		return nil
-	}
-
-	version := extractPostgresVersion(versionStr)
-
-	return &PostgresqlDatabase{
-		Version:  version,
-		Host:     container.Host,
-		Port:     container.Port,
-		Username: container.Username,
-		Password: container.Password,
-		Database: &container.Database,
-		IsHttps:  false,
-	}
-}
-
-func extractPostgresVersion(versionStr string) tools.PostgresqlVersion {
-	if strings.Contains(versionStr, "PostgreSQL 12") {
-		return tools.GetPostgresqlVersionEnum("12")
-	} else if strings.Contains(versionStr, "PostgreSQL 13") {
-		return tools.GetPostgresqlVersionEnum("13")
-	} else if strings.Contains(versionStr, "PostgreSQL 14") {
-		return tools.GetPostgresqlVersionEnum("14")
-	} else if strings.Contains(versionStr, "PostgreSQL 15") {
-		return tools.GetPostgresqlVersionEnum("15")
-	} else if strings.Contains(versionStr, "PostgreSQL 16") {
-		return tools.GetPostgresqlVersionEnum("16")
-	} else if strings.Contains(versionStr, "PostgreSQL 17") {
-		return tools.GetPostgresqlVersionEnum("17")
-	}
-
-	return tools.GetPostgresqlVersionEnum("16")
-}

backend/internal/features/databases/di.go

@@ -1,6 +1,9 @@
 package databases
 
 import (
+	"sync"
+	"sync/atomic"
+
 	audit_logs "databasus-backend/internal/features/audit_logs"
 	"databasus-backend/internal/features/notifiers"
 	users_services "databasus-backend/internal/features/users/services"
@@ -37,7 +40,22 @@ func GetDatabaseController() *DatabaseController {
 	return databaseController
 }
 
+var (
+	setupOnce sync.Once
+	isSetup   atomic.Bool
+)
+
 func SetupDependencies() {
-	workspaces_services.GetWorkspaceService().AddWorkspaceDeletionListener(databaseService)
-	notifiers.GetNotifierService().SetNotifierDatabaseCounter(databaseService)
+	wasAlreadySetup := isSetup.Load()
+
+	setupOnce.Do(func() {
+		workspaces_services.GetWorkspaceService().AddWorkspaceDeletionListener(databaseService)
+		notifiers.GetNotifierService().SetNotifierDatabaseCounter(databaseService)
+
+		isSetup.Store(true)
+	})
+
+	if wasAlreadySetup {
+		logger.GetLogger().Warn("SetupDependencies called multiple times, ignoring subsequent call")
+	}
 }

backend/internal/features/databases/dto.go

@@ -6,5 +6,6 @@ type CreateReadOnlyUserResponse struct {
 }
 
 type IsReadOnlyResponse struct {
-	IsReadOnly bool `json:"isReadOnly"`
+	IsReadOnly bool     `json:"isReadOnly"`
+	Privileges []string `json:"privileges"`
 }

backend/internal/features/databases/model.go

@@ -104,21 +104,21 @@ func (d *Database) EncryptSensitiveFields(encryptor encryption.FieldEncryptor) e
 	return nil
 }
 
-func (d *Database) PopulateVersionIfEmpty(
+func (d *Database) PopulateDbData(
 	logger *slog.Logger,
 	encryptor encryption.FieldEncryptor,
 ) error {
 	if d.Postgresql != nil {
-		return d.Postgresql.PopulateVersionIfEmpty(logger, encryptor, d.ID)
+		return d.Postgresql.PopulateDbData(logger, encryptor, d.ID)
 	}
 	if d.Mysql != nil {
-		return d.Mysql.PopulateVersionIfEmpty(logger, encryptor, d.ID)
+		return d.Mysql.PopulateDbData(logger, encryptor, d.ID)
 	}
 	if d.Mariadb != nil {
-		return d.Mariadb.PopulateVersionIfEmpty(logger, encryptor, d.ID)
+		return d.Mariadb.PopulateDbData(logger, encryptor, d.ID)
 	}
 	if d.Mongodb != nil {
-		return d.Mongodb.PopulateVersionIfEmpty(logger, encryptor, d.ID)
+		return d.Mongodb.PopulateDbData(logger, encryptor, d.ID)
 	}
 	return nil
 }

backend/internal/features/databases/service.go

@@ -82,8 +82,8 @@ func (s *DatabaseService) CreateDatabase(
 		return nil, err
 	}
 
-	if err := database.PopulateVersionIfEmpty(s.logger, s.fieldEncryptor); err != nil {
-		return nil, fmt.Errorf("failed to auto-detect database version: %w", err)
+	if err := database.PopulateDbData(s.logger, s.fieldEncryptor); err != nil {
+		return nil, fmt.Errorf("failed to auto-detect database data: %w", err)
 	}
 
 	if err := database.EncryptSensitiveFields(s.fieldEncryptor); err != nil {
@@ -149,8 +149,8 @@ func (s *DatabaseService) UpdateDatabase(
 		return err
 	}
 
-	if err := existingDatabase.PopulateVersionIfEmpty(s.logger, s.fieldEncryptor); err != nil {
-		return fmt.Errorf("failed to auto-detect database version: %w", err)
+	if err := existingDatabase.PopulateDbData(s.logger, s.fieldEncryptor); err != nil {
+		return fmt.Errorf("failed to auto-detect database data: %w", err)
 	}
 
 	if err := existingDatabase.EncryptSensitiveFields(s.fieldEncryptor); err != nil {
@@ -594,17 +594,17 @@ func (s *DatabaseService) OnBeforeWorkspaceDeletion(workspaceID uuid.UUID) error
 func (s *DatabaseService) IsUserReadOnly(
 	user *users_models.User,
 	database *Database,
-) (bool, error) {
+) (bool, []string, error) {
 	var usingDatabase *Database
 
 	if database.ID != uuid.Nil {
 		existingDatabase, err := s.dbRepository.FindByID(database.ID)
 		if err != nil {
-			return false, err
+			return false, nil, err
 		}
 
 		if existingDatabase.WorkspaceID == nil {
-			return false, errors.New("cannot check user for database without workspace")
+			return false, nil, errors.New("cannot check user for database without workspace")
 		}
 
 		canAccess, _, err := s.workspaceService.CanUserAccessWorkspace(
@@ -612,31 +612,34 @@ func (s *DatabaseService) IsUserReadOnly(
 			user,
 		)
 		if err != nil {
-			return false, err
+			return false, nil, err
 		}
 		if !canAccess {
-			return false, errors.New("insufficient permissions to access this database")
+			return false, nil, errors.New("insufficient permissions to access this database")
 		}
 
 		if database.WorkspaceID != nil && *existingDatabase.WorkspaceID != *database.WorkspaceID {
-			return false, errors.New("database does not belong to this workspace")
+			return false, nil, errors.New("database does not belong to this workspace")
 		}
 
 		existingDatabase.Update(database)
 
 		if err := existingDatabase.Validate(); err != nil {
-			return false, err
+			return false, nil, err
 		}
 
 		usingDatabase = existingDatabase
 	} else {
 		if database.WorkspaceID != nil {
-			canAccess, _, err := s.workspaceService.CanUserAccessWorkspace(*database.WorkspaceID, user)
+			canAccess, _, err := s.workspaceService.CanUserAccessWorkspace(
+				*database.WorkspaceID,
+				user,
+			)
 			if err != nil {
-				return false, err
+				return false, nil, err
 			}
 			if !canAccess {
-				return false, errors.New("insufficient permissions to access this workspace")
+				return false, nil, errors.New("insufficient permissions to access this workspace")
 			}
 		}
 
@@ -676,7 +679,7 @@ func (s *DatabaseService) IsUserReadOnly(
 			usingDatabase.ID,
 		)
 	default:
-		return false, errors.New("read-only check not supported for this database type")
+		return false, nil, errors.New("read-only check not supported for this database type")
 	}
 }
 

backend/internal/features/databases/testing.go

@@ -1,6 +1,12 @@
 package databases
 
 import (
+	"fmt"
+	"strconv"
+
+	"databasus-backend/internal/config"
+	"databasus-backend/internal/features/databases/databases/mariadb"
+	"databasus-backend/internal/features/databases/databases/mongodb"
 	"databasus-backend/internal/features/databases/databases/postgresql"
 	"databasus-backend/internal/features/notifiers"
 	"databasus-backend/internal/features/storages"
@@ -9,6 +15,71 @@ import (
 	"github.com/google/uuid"
 )
 
+func GetTestPostgresConfig() *postgresql.PostgresqlDatabase {
+	env := config.GetEnv()
+	port, err := strconv.Atoi(env.TestPostgres16Port)
+	if err != nil {
+		panic(fmt.Sprintf("Failed to parse TEST_POSTGRES_16_PORT: %v", err))
+	}
+
+	testDbName := "testdb"
+	return &postgresql.PostgresqlDatabase{
+		Version:  tools.PostgresqlVersion16,
+		Host:     config.GetEnv().TestLocalhost,
+		Port:     port,
+		Username: "testuser",
+		Password: "testpassword",
+		Database: &testDbName,
+		CpuCount: 1,
+	}
+}
+
+func GetTestMariadbConfig() *mariadb.MariadbDatabase {
+	env := config.GetEnv()
+	portStr := env.TestMariadb1011Port
+	if portStr == "" {
+		portStr = "33111"
+	}
+	port, err := strconv.Atoi(portStr)
+	if err != nil {
+		panic(fmt.Sprintf("Failed to parse TEST_MARIADB_1011_PORT: %v", err))
+	}
+
+	testDbName := "testdb"
+	return &mariadb.MariadbDatabase{
+		Version:  tools.MariadbVersion1011,
+		Host:     config.GetEnv().TestLocalhost,
+		Port:     port,
+		Username: "testuser",
+		Password: "testpassword",
+		Database: &testDbName,
+	}
+}
+
+func GetTestMongodbConfig() *mongodb.MongodbDatabase {
+	env := config.GetEnv()
+	portStr := env.TestMongodb70Port
+	if portStr == "" {
+		portStr = "27070"
+	}
+	port, err := strconv.Atoi(portStr)
+	if err != nil {
+		panic(fmt.Sprintf("Failed to parse TEST_MONGODB_70_PORT: %v", err))
+	}
+
+	return &mongodb.MongodbDatabase{
+		Version:      tools.MongodbVersion7,
+		Host:         config.GetEnv().TestLocalhost,
+		Port:         port,
+		Username:     "root",
+		Password:     "rootpassword",
+		Database:     "testdb",
+		AuthDatabase: "admin",
+		IsHttps:      false,
+		CpuCount:     1,
+	}
+}
+
 func CreateTestDatabase(
 	workspaceID uuid.UUID,
 	storage *storages.Storage,
@@ -18,16 +89,7 @@ func CreateTestDatabase(
 		WorkspaceID: &workspaceID,
 		Name:        "test " + uuid.New().String(),
 		Type:        DatabaseTypePostgres,
-
-		Postgresql: &postgresql.PostgresqlDatabase{
-			Version:  tools.PostgresqlVersion16,
-			Host:     "localhost",
-			Port:     5432,
-			Username: "postgres",
-			Password: "postgres",
-			CpuCount: 1,
-		},
-
+		Postgresql:  GetTestPostgresConfig(),
 		Notifiers: []notifiers.Notifier{
 			*notifier,
 		},

backend/internal/features/healthcheck/attempt/background_service.go

@@ -1,30 +1,48 @@
 package healthcheck_attempt
 
 import (
-	"databasus-backend/internal/config"
-	healthcheck_config "databasus-backend/internal/features/healthcheck/config"
+	"context"
+	"fmt"
 	"log/slog"
+	"sync"
+	"sync/atomic"
 	"time"
+
+	healthcheck_config "databasus-backend/internal/features/healthcheck/config"
 )
 
 type HealthcheckAttemptBackgroundService struct {
 	healthcheckConfigService   *healthcheck_config.HealthcheckConfigService
 	checkDatabaseHealthUseCase *CheckDatabaseHealthUseCase
 	logger                     *slog.Logger
+
+	runOnce sync.Once
+	hasRun  atomic.Bool
 }
 
-func (s *HealthcheckAttemptBackgroundService) Run() {
-	// first healthcheck immediately
-	s.checkDatabases()
+func (s *HealthcheckAttemptBackgroundService) Run(ctx context.Context) {
+	wasAlreadyRun := s.hasRun.Load()
 
-	ticker := time.NewTicker(time.Minute)
-	defer ticker.Stop()
-	for range ticker.C {
-		if config.IsShouldShutdown() {
-			break
-		}
+	s.runOnce.Do(func() {
+		s.hasRun.Store(true)
 
+		// first healthcheck immediately
 		s.checkDatabases()
+
+		ticker := time.NewTicker(time.Minute)
+		defer ticker.Stop()
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case <-ticker.C:
+				s.checkDatabases()
+			}
+		}
+	})
+
+	if wasAlreadyRun {
+		panic(fmt.Sprintf("%T.Run() called multiple times", s))
 	}
 }
 

backend/internal/features/healthcheck/attempt/controller_test.go

@@ -12,13 +12,11 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"databasus-backend/internal/features/databases"
-	"databasus-backend/internal/features/databases/databases/postgresql"
 	users_enums "databasus-backend/internal/features/users/enums"
 	users_testing "databasus-backend/internal/features/users/testing"
 	workspaces_controllers "databasus-backend/internal/features/workspaces/controllers"
 	workspaces_testing "databasus-backend/internal/features/workspaces/testing"
 	test_utils "databasus-backend/internal/util/testing"
-	"databasus-backend/internal/util/tools"
 )
 
 func createTestRouter() *gin.Engine {
@@ -111,7 +109,13 @@ func Test_GetAttemptsByDatabase_PermissionsEnforced(t *testing.T) {
 				testUserToken = owner.Token
 			} else if tt.workspaceRole != nil {
 				member := users_testing.CreateTestUser(users_enums.UserRoleMember)
-				workspaces_testing.AddMemberToWorkspace(workspace, member, *tt.workspaceRole, owner.Token, router)
+				workspaces_testing.AddMemberToWorkspace(
+					workspace,
+					member,
+					*tt.workspaceRole,
+					owner.Token,
+					router,
+				)
 				testUserToken = member.Token
 			} else {
 				nonMember := users_testing.CreateTestUser(users_enums.UserRoleMember)
@@ -205,20 +209,11 @@ func createTestDatabaseViaAPI(
 	token string,
 	router *gin.Engine,
 ) *databases.Database {
-	testDbName := "test_db"
 	request := databases.Database{
 		WorkspaceID: &workspaceID,
 		Name:        name,
 		Type:        databases.DatabaseTypePostgres,
-		Postgresql: &postgresql.PostgresqlDatabase{
-			Version:  tools.PostgresqlVersion16,
-			Host:     "localhost",
-			Port:     5432,
-			Username: "postgres",
-			Password: "postgres",
-			Database: &testDbName,
-			CpuCount: 1,
-		},
+		Postgresql:  databases.GetTestPostgresConfig(),
 	}
 
 	w := workspaces_testing.MakeAPIRequest(

backend/internal/features/healthcheck/attempt/di.go

@@ -1,6 +1,9 @@
 package healthcheck_attempt
 
 import (
+	"sync"
+	"sync/atomic"
+
 	"databasus-backend/internal/features/databases"
 	healthcheck_config "databasus-backend/internal/features/healthcheck/config"
 	"databasus-backend/internal/features/notifiers"
@@ -22,9 +25,11 @@ var checkDatabaseHealthUseCase = &CheckDatabaseHealthUseCase{
 }
 
 var healthcheckAttemptBackgroundService = &HealthcheckAttemptBackgroundService{
-	healthcheck_config.GetHealthcheckConfigService(),
-	checkDatabaseHealthUseCase,
-	logger.GetLogger(),
+	healthcheckConfigService:   healthcheck_config.GetHealthcheckConfigService(),
+	checkDatabaseHealthUseCase: checkDatabaseHealthUseCase,
+	logger:                     logger.GetLogger(),
+	runOnce:                    sync.Once{},
+	hasRun:                     atomic.Bool{},
 }
 var healthcheckAttemptController = &HealthcheckAttemptController{
 	healthcheckAttemptService,

backend/internal/features/healthcheck/config/controller_test.go

@@ -10,13 +10,11 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"databasus-backend/internal/features/databases"
-	"databasus-backend/internal/features/databases/databases/postgresql"
 	users_enums "databasus-backend/internal/features/users/enums"
 	users_testing "databasus-backend/internal/features/users/testing"
 	workspaces_controllers "databasus-backend/internal/features/workspaces/controllers"
 	workspaces_testing "databasus-backend/internal/features/workspaces/testing"
 	test_utils "databasus-backend/internal/util/testing"
-	"databasus-backend/internal/util/tools"
 )
 
 func createTestRouter() *gin.Engine {
@@ -90,7 +88,13 @@ func Test_SaveHealthcheckConfig_PermissionsEnforced(t *testing.T) {
 				testUserToken = owner.Token
 			} else if tt.workspaceRole != nil {
 				member := users_testing.CreateTestUser(users_enums.UserRoleMember)
-				workspaces_testing.AddMemberToWorkspace(workspace, member, *tt.workspaceRole, owner.Token, router)
+				workspaces_testing.AddMemberToWorkspace(
+					workspace,
+					member,
+					*tt.workspaceRole,
+					owner.Token,
+					router,
+				)
 				testUserToken = member.Token
 			}
 
@@ -228,7 +232,13 @@ func Test_GetHealthcheckConfig_PermissionsEnforced(t *testing.T) {
 				testUserToken = owner.Token
 			} else if tt.workspaceRole != nil {
 				member := users_testing.CreateTestUser(users_enums.UserRoleMember)
-				workspaces_testing.AddMemberToWorkspace(workspace, member, *tt.workspaceRole, owner.Token, router)
+				workspaces_testing.AddMemberToWorkspace(
+					workspace,
+					member,
+					*tt.workspaceRole,
+					owner.Token,
+					router,
+				)
 				testUserToken = member.Token
 			} else {
 				nonMember := users_testing.CreateTestUser(users_enums.UserRoleMember)
@@ -293,20 +303,11 @@ func createTestDatabaseViaAPI(
 	token string,
 	router *gin.Engine,
 ) *databases.Database {
-	testDbName := "test_db"
 	request := databases.Database{
 		WorkspaceID: &workspaceID,
 		Name:        name,
 		Type:        databases.DatabaseTypePostgres,
-		Postgresql: &postgresql.PostgresqlDatabase{
-			Version:  tools.PostgresqlVersion16,
-			Host:     "localhost",
-			Port:     5432,
-			Username: "postgres",
-			Password: "postgres",
-			Database: &testDbName,
-			CpuCount: 1,
-		},
+		Postgresql:  databases.GetTestPostgresConfig(),
 	}
 
 	w := workspaces_testing.MakeAPIRequest(

backend/internal/features/healthcheck/config/di.go

@@ -1,6 +1,9 @@
 package healthcheck_config
 
 import (
+	"sync"
+	"sync/atomic"
+
 	"databasus-backend/internal/features/audit_logs"
 	"databasus-backend/internal/features/databases"
 	workspaces_services "databasus-backend/internal/features/workspaces/services"
@@ -27,8 +30,23 @@ func GetHealthcheckConfigController() *HealthcheckConfigController {
 	return healthcheckConfigController
 }
 
+var (
+	setupOnce sync.Once
+	isSetup   atomic.Bool
+)
+
 func SetupDependencies() {
-	databases.
-		GetDatabaseService().
-		AddDbCreationListener(healthcheckConfigService)
+	wasAlreadySetup := isSetup.Load()
+
+	setupOnce.Do(func() {
+		databases.
+			GetDatabaseService().
+			AddDbCreationListener(healthcheckConfigService)
+
+		isSetup.Store(true)
+	})
+
+	if wasAlreadySetup {
+		logger.GetLogger().Warn("SetupDependencies called multiple times, ignoring subsequent call")
+	}
 }

backend/internal/features/notifiers/controller.go

@@ -263,7 +263,12 @@ func (c *NotifierController) TransferNotifierToWorkspace(ctx *gin.Context) {
 		return
 	}
 
-	if err := c.notifierService.TransferNotifierToWorkspace(user, id, request.TargetWorkspaceID, nil); err != nil {
+	if err := c.notifierService.TransferNotifierToWorkspace(
+		user,
+		id,
+		request.TargetWorkspaceID,
+		nil,
+	); err != nil {
 		if errors.Is(err, ErrInsufficientPermissionsInSourceWorkspace) ||
 			errors.Is(err, ErrInsufficientPermissionsInTargetWorkspace) {
 			ctx.JSON(http.StatusForbidden, gin.H{"error": err.Error()})

backend/internal/features/notifiers/controller_test.go

@@ -675,6 +675,10 @@ func Test_NotifierSensitiveDataLifecycle_AllTypes(t *testing.T) {
 					WebhookNotifier: &webhook_notifier.WebhookNotifier{
 						WebhookURL:    "https://webhook.example.com/test",
 						WebhookMethod: webhook_notifier.WebhookMethodPOST,
+						Headers: []webhook_notifier.WebhookHeader{
+							{Key: "Authorization", Value: "Bearer my-secret-token"},
+							{Key: "X-Custom-Header", Value: "custom-value"},
+						},
 					},
 				}
 			},
@@ -687,14 +691,40 @@ func Test_NotifierSensitiveDataLifecycle_AllTypes(t *testing.T) {
 					WebhookNotifier: &webhook_notifier.WebhookNotifier{
 						WebhookURL:    "https://webhook.example.com/updated",
 						WebhookMethod: webhook_notifier.WebhookMethodGET,
+						Headers: []webhook_notifier.WebhookHeader{
+							{Key: "Authorization", Value: "Bearer updated-token"},
+						},
 					},
 				}
 			},
 			verifySensitiveData: func(t *testing.T, notifier *Notifier) {
-				// No sensitive data to verify for webhook
+				assert.NotEmpty(
+					t,
+					notifier.WebhookNotifier.WebhookURL,
+					"WebhookURL should be visible",
+				)
+				// Verify header values are encrypted in DB
+				assert.True(
+					t,
+					isEncrypted(notifier.WebhookNotifier.Headers[0].Value),
+					"Header value should be encrypted in DB",
+				)
+				decrypted := decryptField(
+					t,
+					notifier.ID,
+					notifier.WebhookNotifier.Headers[0].Value,
+				)
+				assert.Equal(t, "Bearer updated-token", decrypted)
 			},
 			verifyHiddenData: func(t *testing.T, notifier *Notifier) {
-				// No sensitive data to hide for webhook
+				assert.NotEmpty(
+					t,
+					notifier.WebhookNotifier.WebhookURL,
+					"WebhookURL should be visible",
+				)
+				for _, header := range notifier.WebhookNotifier.Headers {
+					assert.Empty(t, header.Value, "Header value should be hidden")
+				}
 			},
 		},
 	}
@@ -905,7 +935,7 @@ func Test_CreateNotifier_AllSensitiveFieldsEncryptedInDB(t *testing.T) {
 			},
 		},
 		{
-			name: "Webhook Notifier - WebhookURL encrypted",
+			name: "Webhook Notifier - Header values encrypted, URL not encrypted",
 			createNotifier: func(workspaceID uuid.UUID) *Notifier {
 				return &Notifier{
 					WorkspaceID:  workspaceID,
@@ -914,17 +944,48 @@ func Test_CreateNotifier_AllSensitiveFieldsEncryptedInDB(t *testing.T) {
 					WebhookNotifier: &webhook_notifier.WebhookNotifier{
 						WebhookURL:    "https://webhook.example.com/test456",
 						WebhookMethod: webhook_notifier.WebhookMethodPOST,
+						Headers: []webhook_notifier.WebhookHeader{
+							{Key: "Authorization", Value: "Bearer secret-token-12345"},
+							{Key: "X-API-Key", Value: "api-key-67890"},
+						},
 					},
 				}
 			},
 			verifySensitiveEncryption: func(t *testing.T, notifier *Notifier) {
-				assert.True(
+				assert.False(
 					t,
 					isEncrypted(notifier.WebhookNotifier.WebhookURL),
-					"WebhookURL should be encrypted",
+					"WebhookURL should NOT be encrypted",
 				)
-				decrypted := decryptField(t, notifier.ID, notifier.WebhookNotifier.WebhookURL)
-				assert.Equal(t, "https://webhook.example.com/test456", decrypted)
+				assert.Equal(
+					t,
+					"https://webhook.example.com/test456",
+					notifier.WebhookNotifier.WebhookURL,
+				)
+
+				assert.True(
+					t,
+					isEncrypted(notifier.WebhookNotifier.Headers[0].Value),
+					"Header value should be encrypted",
+				)
+				decrypted1 := decryptField(
+					t,
+					notifier.ID,
+					notifier.WebhookNotifier.Headers[0].Value,
+				)
+				assert.Equal(t, "Bearer secret-token-12345", decrypted1)
+
+				assert.True(
+					t,
+					isEncrypted(notifier.WebhookNotifier.Headers[1].Value),
+					"Header value should be encrypted",
+				)
+				decrypted2 := decryptField(
+					t,
+					notifier.ID,
+					notifier.WebhookNotifier.Headers[1].Value,
+				)
+				assert.Equal(t, "api-key-67890", decrypted2)
 			},
 		},
 	}
@@ -1050,8 +1111,20 @@ func Test_TransferNotifier_PermissionsEnforced(t *testing.T) {
 				testUserToken = admin.Token
 			} else if tt.sourceRole != nil {
 				testUser := users_testing.CreateTestUser(users_enums.UserRoleMember)
-				workspaces_testing.AddMemberToWorkspace(sourceWorkspace, testUser, *tt.sourceRole, sourceOwner.Token, router)
-				workspaces_testing.AddMemberToWorkspace(targetWorkspace, testUser, *tt.targetRole, targetOwner.Token, router)
+				workspaces_testing.AddMemberToWorkspace(
+					sourceWorkspace,
+					testUser,
+					*tt.sourceRole,
+					sourceOwner.Token,
+					router,
+				)
+				workspaces_testing.AddMemberToWorkspace(
+					targetWorkspace,
+					testUser,
+					*tt.targetRole,
+					targetOwner.Token,
+					router,
+				)
 				testUserToken = testUser.Token
 			}
 

backend/internal/features/notifiers/di.go

@@ -1,6 +1,9 @@
 package notifiers
 
 import (
+	"sync"
+	"sync/atomic"
+
 	audit_logs "databasus-backend/internal/features/audit_logs"
 	workspaces_services "databasus-backend/internal/features/workspaces/services"
 	"databasus-backend/internal/util/encryption"
@@ -32,6 +35,22 @@ func GetNotifierService() *NotifierService {
 func GetNotifierRepository() *NotifierRepository {
 	return notifierRepository
 }
+
+var (
+	setupOnce sync.Once
+	isSetup   atomic.Bool
+)
+
 func SetupDependencies() {
-	workspaces_services.GetWorkspaceService().AddWorkspaceDeletionListener(notifierService)
+	wasAlreadySetup := isSetup.Load()
+
+	setupOnce.Do(func() {
+		workspaces_services.GetWorkspaceService().AddWorkspaceDeletionListener(notifierService)
+
+		isSetup.Store(true)
+	})
+
+	if wasAlreadySetup {
+		logger.GetLogger().Warn("SetupDependencies called multiple times, ignoring subsequent call")
+	}
 }

backend/internal/features/notifiers/models/email_notifier/model.go

@@ -6,6 +6,7 @@ import (
 	"errors"
 	"fmt"
 	"log/slog"
+	"mime"
 	"net"
 	"net/smtp"
 	"time"
@@ -115,16 +116,34 @@ func (e *EmailNotifier) EncryptSensitiveData(encryptor encryption.FieldEncryptor
 	return nil
 }
 
+// encodeRFC2047 encodes a string using RFC 2047 MIME encoding for email headers
+// This ensures compatibility with SMTP servers that don't support SMTPUTF8
+func encodeRFC2047(s string) string {
+	// mime.QEncoding handles UTF-8 → =?UTF-8?Q?...?= encoding
+	// This allows non-ASCII characters (emojis, accents, etc.) in email headers
+	// while maintaining compatibility with all SMTP servers
+	return mime.QEncoding.Encode("UTF-8", s)
+}
+
 func (e *EmailNotifier) buildEmailContent(heading, message, from string) []byte {
-	subject := fmt.Sprintf("Subject: %s\r\n", heading)
-	mime := fmt.Sprintf(
+	// Encode Subject header using RFC 2047 to avoid SMTPUTF8 requirement
+	// This ensures compatibility with SMTP servers that don't support SMTPUTF8
+	encodedSubject := encodeRFC2047(heading)
+	subject := fmt.Sprintf("Subject: %s\r\n", encodedSubject)
+
+	mimeHeaders := fmt.Sprintf(
 		"MIME-version: 1.0;\nContent-Type: %s; charset=\"%s\";\n\n",
 		MIMETypeHTML,
 		MIMECharsetUTF8,
 	)
-	fromHeader := fmt.Sprintf("From: %s\r\n", from)
+
+	// Encode From header display name if it contains non-ASCII
+	encodedFrom := encodeRFC2047(from)
+	fromHeader := fmt.Sprintf("From: %s\r\n", encodedFrom)
+
 	toHeader := fmt.Sprintf("To: %s\r\n", e.TargetEmail)
-	return []byte(fromHeader + toHeader + subject + mime + message)
+
+	return []byte(fromHeader + toHeader + subject + mimeHeaders + message)
 }
 
 func (e *EmailNotifier) sendImplicitTLS(

backend/internal/features/notifiers/models/webhook/model.go

@@ -21,6 +21,10 @@ type WebhookHeader struct {
 	Value string `json:"value"`
 }
 
+// Before both WebhookURL, BodyTemplate and HeadersJSON were considered
+// as sensetive data and it was causing issues. Now only headers values
+// considered as sensetive data, but we try to decrypt webhook URL and
+// body template for backward combability
 type WebhookNotifier struct {
 	NotifierID    uuid.UUID     `json:"notifierId"    gorm:"primaryKey;column:notifier_id"`
 	WebhookURL    string        `json:"webhookUrl"    gorm:"not null;column:webhook_url"`
@@ -58,6 +62,20 @@ func (t *WebhookNotifier) AfterFind(_ *gorm.DB) error {
 		}
 	}
 
+	encryptor := encryption.GetFieldEncryptor()
+
+	if t.WebhookURL != "" {
+		if decrypted, err := encryptor.Decrypt(t.NotifierID, t.WebhookURL); err == nil {
+			t.WebhookURL = decrypted
+		}
+	}
+
+	if t.BodyTemplate != nil && *t.BodyTemplate != "" {
+		if decrypted, err := encryptor.Decrypt(t.NotifierID, *t.BodyTemplate); err == nil {
+			t.BodyTemplate = &decrypted
+		}
+	}
+
 	return nil
 }
 
@@ -79,22 +97,24 @@ func (t *WebhookNotifier) Send(
 	heading string,
 	message string,
 ) error {
-	webhookURL, err := encryptor.Decrypt(t.NotifierID, t.WebhookURL)
-	if err != nil {
-		return fmt.Errorf("failed to decrypt webhook URL: %w", err)
+	if err := t.decryptHeadersForSending(encryptor); err != nil {
+		return err
 	}
 
 	switch t.WebhookMethod {
 	case WebhookMethodGET:
-		return t.sendGET(webhookURL, heading, message, logger)
+		return t.sendGET(t.WebhookURL, heading, message, logger)
 	case WebhookMethodPOST:
-		return t.sendPOST(webhookURL, heading, message, logger)
+		return t.sendPOST(t.WebhookURL, heading, message, logger)
 	default:
 		return fmt.Errorf("unsupported webhook method: %s", t.WebhookMethod)
 	}
 }
 
 func (t *WebhookNotifier) HideSensitiveData() {
+	for i := range t.Headers {
+		t.Headers[i].Value = ""
+	}
 }
 
 func (t *WebhookNotifier) Update(incoming *WebhookNotifier) {
@@ -105,14 +125,15 @@ func (t *WebhookNotifier) Update(incoming *WebhookNotifier) {
 }
 
 func (t *WebhookNotifier) EncryptSensitiveData(encryptor encryption.FieldEncryptor) error {
-	if t.WebhookURL != "" {
-		encrypted, err := encryptor.Encrypt(t.NotifierID, t.WebhookURL)
+	for i := range t.Headers {
+		if t.Headers[i].Value != "" {
+			encrypted, err := encryptor.Encrypt(t.NotifierID, t.Headers[i].Value)
+			if err != nil {
+				return fmt.Errorf("failed to encrypt header value: %w", err)
+			}
 
-		if err != nil {
-			return fmt.Errorf("failed to encrypt webhook URL: %w", err)
+			t.Headers[i].Value = encrypted
 		}
-
-		t.WebhookURL = encrypted
 	}
 
 	return nil
@@ -241,3 +262,15 @@ func escapeJSONString(s string) string {
 
 	return string(b[1 : len(b)-1])
 }
+
+func (t *WebhookNotifier) decryptHeadersForSending(encryptor encryption.FieldEncryptor) error {
+	for i := range t.Headers {
+		if t.Headers[i].Value != "" {
+			if decrypted, err := encryptor.Decrypt(t.NotifierID, t.Headers[i].Value); err == nil {
+				t.Headers[i].Value = decrypted
+			}
+		}
+	}
+
+	return nil
+}

backend/internal/features/restores/background_service.go

@@ -1,37 +0,0 @@
-package restores
-
-import (
-	"databasus-backend/internal/features/restores/enums"
-	"log/slog"
-)
-
-type RestoreBackgroundService struct {
-	restoreRepository *RestoreRepository
-	logger            *slog.Logger
-}
-
-func (s *RestoreBackgroundService) Run() {
-	if err := s.failRestoresInProgress(); err != nil {
-		s.logger.Error("Failed to fail restores in progress", "error", err)
-		panic(err)
-	}
-}
-
-func (s *RestoreBackgroundService) failRestoresInProgress() error {
-	restoresInProgress, err := s.restoreRepository.FindByStatus(enums.RestoreStatusInProgress)
-	if err != nil {
-		return err
-	}
-
-	for _, restore := range restoresInProgress {
-		failMessage := "Restore failed due to application restart"
-		restore.Status = enums.RestoreStatusFailed
-		restore.FailMessage = &failMessage
-
-		if err := s.restoreRepository.Save(restore); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}

backend/internal/features/restores/controller.go

@@ -1,6 +1,7 @@
 package restores
 
 import (
+	restores_core "databasus-backend/internal/features/restores/core"
 	users_middleware "databasus-backend/internal/features/users/middleware"
 	"net/http"
 
@@ -15,6 +16,7 @@ type RestoreController struct {
 func (c *RestoreController) RegisterRoutes(router *gin.RouterGroup) {
 	router.GET("/restores/:backupId", c.GetRestores)
 	router.POST("/restores/:backupId/restore", c.RestoreBackup)
+	router.POST("/restores/cancel/:restoreId", c.CancelRestore)
 }
 
 // GetRestores
@@ -23,7 +25,7 @@ func (c *RestoreController) RegisterRoutes(router *gin.RouterGroup) {
 // @Tags restores
 // @Produce json
 // @Param backupId path string true "Backup ID"
-// @Success 200 {array} models.Restore
+// @Success 200 {array} restores_core.Restore
 // @Failure 400
 // @Failure 401
 // @Router /restores/{backupId} [get]
@@ -71,7 +73,7 @@ func (c *RestoreController) RestoreBackup(ctx *gin.Context) {
 		return
 	}
 
-	var requestDTO RestoreBackupRequest
+	var requestDTO restores_core.RestoreBackupRequest
 	if err := ctx.ShouldBindJSON(&requestDTO); err != nil {
 		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 		return
@@ -84,3 +86,33 @@ func (c *RestoreController) RestoreBackup(ctx *gin.Context) {
 
 	ctx.JSON(http.StatusOK, gin.H{"message": "restore started successfully"})
 }
+
+// CancelRestore
+// @Summary Cancel an in-progress restore
+// @Description Cancel a restore that is currently in progress
+// @Tags restores
+// @Param restoreId path string true "Restore ID"
+// @Success 204
+// @Failure 400
+// @Failure 401
+// @Router /restores/cancel/{restoreId} [post]
+func (c *RestoreController) CancelRestore(ctx *gin.Context) {
+	user, ok := users_middleware.GetUserFromContext(ctx)
+	if !ok {
+		ctx.JSON(http.StatusUnauthorized, gin.H{"error": "User not authenticated"})
+		return
+	}
+
+	restoreID, err := uuid.Parse(ctx.Param("restoreId"))
+	if err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "invalid restore ID"})
+		return
+	}
+
+	if err := c.restoreService.CancelRestore(user, restoreID); err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	ctx.Status(http.StatusNoContent)
+}

backend/internal/features/restores/controller_test.go

@@ -7,6 +7,7 @@ import (
 	"io"
 	"log/slog"
 	"net/http"
+	"strconv"
 	"strings"
 	"testing"
 	"time"
@@ -15,22 +16,27 @@ import (
 	"github.com/google/uuid"
 	"github.com/stretchr/testify/assert"
 
+	env_config "databasus-backend/internal/config"
 	audit_logs "databasus-backend/internal/features/audit_logs"
 	"databasus-backend/internal/features/backups/backups"
+	backups_core "databasus-backend/internal/features/backups/backups/core"
 	backups_config "databasus-backend/internal/features/backups/config"
 	"databasus-backend/internal/features/databases"
 	"databasus-backend/internal/features/databases/databases/mysql"
 	"databasus-backend/internal/features/databases/databases/postgresql"
-	"databasus-backend/internal/features/restores/models"
+	"databasus-backend/internal/features/notifiers"
+	restores_core "databasus-backend/internal/features/restores/core"
+	"databasus-backend/internal/features/restores/restoring"
 	"databasus-backend/internal/features/storages"
 	local_storage "databasus-backend/internal/features/storages/models/local"
+	tasks_cancellation "databasus-backend/internal/features/tasks/cancellation"
 	users_dto "databasus-backend/internal/features/users/dto"
 	users_enums "databasus-backend/internal/features/users/enums"
 	users_services "databasus-backend/internal/features/users/services"
 	users_testing "databasus-backend/internal/features/users/testing"
-	workspaces_controllers "databasus-backend/internal/features/workspaces/controllers"
 	workspaces_models "databasus-backend/internal/features/workspaces/models"
 	workspaces_testing "databasus-backend/internal/features/workspaces/testing"
+	cache_utils "databasus-backend/internal/util/cache"
 	util_encryption "databasus-backend/internal/util/encryption"
 	test_utils "databasus-backend/internal/util/testing"
 	"databasus-backend/internal/util/tools"
@@ -43,7 +49,7 @@ func Test_GetRestores_WhenUserIsWorkspaceMember_RestoresReturned(t *testing.T) {
 
 	database, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
 
-	var restores []*models.Restore
+	var restores []*restores_core.Restore
 	test_utils.MakeGetRequestAndUnmarshal(
 		t,
 		router,
@@ -87,7 +93,7 @@ func Test_GetRestores_WhenUserIsGlobalAdmin_RestoresReturned(t *testing.T) {
 
 	admin := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
 
-	var restores []*models.Restore
+	var restores []*restores_core.Restore
 	test_utils.MakeGetRequestAndUnmarshal(
 		t,
 		router,
@@ -102,15 +108,19 @@ func Test_GetRestores_WhenUserIsGlobalAdmin_RestoresReturned(t *testing.T) {
 
 func Test_RestoreBackup_WhenUserIsWorkspaceMember_RestoreInitiated(t *testing.T) {
 	router := createTestRouter()
+
+	_, cleanup := SetupMockRestoreNode(t)
+	defer cleanup()
+
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
 	_, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
 
-	request := RestoreBackupRequest{
+	request := restores_core.RestoreBackupRequest{
 		PostgresqlDatabase: &postgresql.PostgresqlDatabase{
 			Version:  tools.PostgresqlVersion16,
-			Host:     "localhost",
+			Host:     env_config.GetEnv().TestLocalhost,
 			Port:     5432,
 			Username: "postgres",
 			Password: "postgres",
@@ -138,10 +148,10 @@ func Test_RestoreBackup_WhenUserIsNotWorkspaceMember_ReturnsForbidden(t *testing
 
 	nonMember := users_testing.CreateTestUser(users_enums.UserRoleMember)
 
-	request := RestoreBackupRequest{
+	request := restores_core.RestoreBackupRequest{
 		PostgresqlDatabase: &postgresql.PostgresqlDatabase{
 			Version:  tools.PostgresqlVersion16,
-			Host:     "localhost",
+			Host:     env_config.GetEnv().TestLocalhost,
 			Port:     5432,
 			Username: "postgres",
 			Password: "postgres",
@@ -162,15 +172,19 @@ func Test_RestoreBackup_WhenUserIsNotWorkspaceMember_ReturnsForbidden(t *testing
 
 func Test_RestoreBackup_WithIsExcludeExtensions_FlagPassedCorrectly(t *testing.T) {
 	router := createTestRouter()
+
+	_, cleanup := SetupMockRestoreNode(t)
+	defer cleanup()
+
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
 	_, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
 
-	request := RestoreBackupRequest{
+	request := restores_core.RestoreBackupRequest{
 		PostgresqlDatabase: &postgresql.PostgresqlDatabase{
 			Version:             tools.PostgresqlVersion16,
-			Host:                "localhost",
+			Host:                env_config.GetEnv().TestLocalhost,
 			Port:                5432,
 			Username:            "postgres",
 			Password:            "postgres",
@@ -192,15 +206,19 @@ func Test_RestoreBackup_WithIsExcludeExtensions_FlagPassedCorrectly(t *testing.T
 
 func Test_RestoreBackup_AuditLogWritten(t *testing.T) {
 	router := createTestRouter()
+
+	_, cleanup := SetupMockRestoreNode(t)
+	defer cleanup()
+
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
 	database, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
 
-	request := RestoreBackupRequest{
+	request := restores_core.RestoreBackupRequest{
 		PostgresqlDatabase: &postgresql.PostgresqlDatabase{
 			Version:  tools.PostgresqlVersion16,
-			Host:     "localhost",
+			Host:     env_config.GetEnv().TestLocalhost,
 			Port:     5432,
 			Username: "postgres",
 			Password: "postgres",
@@ -269,18 +287,25 @@ func Test_RestoreBackup_DiskSpaceValidation(t *testing.T) {
 	for _, tc := range tests {
 		t.Run(tc.name, func(t *testing.T) {
 			router := createTestRouter()
+
+			// Setup mock node for tests that skip disk validation and reach scheduler
+			if !tc.expectDiskValidated {
+				_, cleanup := SetupMockRestoreNode(t)
+				defer cleanup()
+			}
+
 			owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 			workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
-			var backup *backups.Backup
-			var request RestoreBackupRequest
+			var backup *backups_core.Backup
+			var request restores_core.RestoreBackupRequest
 
 			if tc.dbType == databases.DatabaseTypePostgres {
 				_, backup = createTestDatabaseWithBackupForRestore(workspace, owner, router)
-				request = RestoreBackupRequest{
+				request = restores_core.RestoreBackupRequest{
 					PostgresqlDatabase: &postgresql.PostgresqlDatabase{
 						Version:  tools.PostgresqlVersion16,
-						Host:     "localhost",
+						Host:     env_config.GetEnv().TestLocalhost,
 						Port:     5432,
 						Username: "postgres",
 						Password: "postgres",
@@ -288,7 +313,12 @@ func Test_RestoreBackup_DiskSpaceValidation(t *testing.T) {
 					},
 				}
 			} else {
-				mysqlDB := createTestMySQLDatabase("Test MySQL DB", workspace.ID, owner.Token, router)
+				mysqlDB := createTestMySQLDatabase(
+					"Test MySQL DB",
+					workspace.ID,
+					owner.Token,
+					router,
+				)
 				storage := createTestStorage(workspace.ID)
 
 				configService := backups_config.GetBackupConfigService()
@@ -302,10 +332,10 @@ func Test_RestoreBackup_DiskSpaceValidation(t *testing.T) {
 				assert.NoError(t, err)
 
 				backup = createTestBackup(mysqlDB, owner)
-				request = RestoreBackupRequest{
+				request = restores_core.RestoreBackupRequest{
 					MysqlDatabase: &mysql.MysqlDatabase{
 						Version:  tools.MysqlVersion80,
-						Host:     "localhost",
+						Host:     env_config.GetEnv().TestLocalhost,
 						Port:     3306,
 						Username: "root",
 						Password: "password",
@@ -314,7 +344,7 @@ func Test_RestoreBackup_DiskSpaceValidation(t *testing.T) {
 			}
 
 			// Set huge backup size (10 TB) that would fail disk validation if checked
-			repo := &backups.BackupRepository{}
+			repo := &backups_core.BackupRepository{}
 			backup.BackupSizeMb = 10485760.0
 			err := repo.Save(backup)
 			assert.NoError(t, err)
@@ -345,23 +375,194 @@ func Test_RestoreBackup_DiskSpaceValidation(t *testing.T) {
 	}
 }
 
-func createTestRouter() *gin.Engine {
-	router := workspaces_testing.CreateTestRouter(
-		workspaces_controllers.GetWorkspaceController(),
-		workspaces_controllers.GetMembershipController(),
-		databases.GetDatabaseController(),
-		backups_config.GetBackupConfigController(),
-		backups.GetBackupController(),
-		GetRestoreController(),
+func Test_CancelRestore_InProgressRestore_SuccessfullyCancelled(t *testing.T) {
+	cache_utils.ClearAllCache()
+	tasks_cancellation.SetupDependencies()
+
+	user := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
+	router := createTestRouter()
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", user, router)
+	storage := storages.CreateTestStorage(workspace.ID)
+	notifier := notifiers.CreateTestNotifier(workspace.ID)
+	database := databases.CreateTestDatabase(workspace.ID, storage, notifier)
+
+	defer func() {
+		backupRepo := backups_core.BackupRepository{}
+		backups, _ := backupRepo.FindByDatabaseID(database.ID)
+		for _, backup := range backups {
+			backupRepo.DeleteByID(backup.ID)
+		}
+
+		restoreRepo := restores_core.RestoreRepository{}
+		restores, _ := restoreRepo.FindByStatus(restores_core.RestoreStatusInProgress)
+		for _, restore := range restores {
+			restoreRepo.DeleteByID(restore.ID)
+		}
+		restores, _ = restoreRepo.FindByStatus(restores_core.RestoreStatusCanceled)
+		for _, restore := range restores {
+			restoreRepo.DeleteByID(restore.ID)
+		}
+
+		databases.RemoveTestDatabase(database)
+		time.Sleep(50 * time.Millisecond)
+		storages.RemoveTestStorage(storage.ID)
+		notifiers.RemoveTestNotifier(notifier)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+
+		cache_utils.ClearAllCache()
+	}()
+
+	backups_config.EnableBackupsForTestDatabase(database.ID, storage)
+	backup := backups.CreateTestBackup(database.ID, storage.ID)
+
+	mockUsecase := &restoring.MockBlockingRestoreUsecase{
+		StartedChan: make(chan bool, 1),
+	}
+	restorerNode := restoring.CreateTestRestorerNodeWithUsecase(mockUsecase)
+
+	cancelNode := restoring.StartRestorerNodeForTest(t, restorerNode)
+	defer cancelNode()
+
+	time.Sleep(200 * time.Millisecond)
+
+	restoreRequest := restores_core.RestoreBackupRequest{
+		PostgresqlDatabase: &postgresql.PostgresqlDatabase{
+			Version:  tools.PostgresqlVersion16,
+			Host:     env_config.GetEnv().TestLocalhost,
+			Port:     5432,
+			Username: "postgres",
+			Password: "postgres",
+		},
+	}
+
+	var restoreResponse map[string]interface{}
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/restores/%s/restore", backup.ID.String()),
+		"Bearer "+user.Token,
+		restoreRequest,
+		http.StatusOK,
+		&restoreResponse,
 	)
-	return router
+
+	select {
+	case <-mockUsecase.StartedChan:
+		t.Log("Restore started and is blocking")
+	case <-time.After(2 * time.Second):
+		t.Fatal("Restore did not start within timeout")
+	}
+
+	restoreRepo := &restores_core.RestoreRepository{}
+	restores, err := restoreRepo.FindByBackupID(backup.ID)
+	assert.NoError(t, err)
+	assert.Greater(t, len(restores), 0, "At least one restore should exist")
+
+	var restoreID uuid.UUID
+	for _, r := range restores {
+		if r.Status == restores_core.RestoreStatusInProgress {
+			restoreID = r.ID
+			break
+		}
+	}
+	assert.NotEqual(t, uuid.Nil, restoreID, "Should find an in-progress restore")
+
+	resp := test_utils.MakePostRequest(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/restores/cancel/%s", restoreID.String()),
+		"Bearer "+user.Token,
+		nil,
+		http.StatusNoContent,
+	)
+
+	assert.Equal(t, http.StatusNoContent, resp.StatusCode)
+
+	deadline := time.Now().UTC().Add(3 * time.Second)
+	var restore *restores_core.Restore
+	for time.Now().UTC().Before(deadline) {
+		restore, err = restoreRepo.FindByID(restoreID)
+		assert.NoError(t, err)
+		if restore.Status == restores_core.RestoreStatusCanceled {
+			break
+		}
+		time.Sleep(100 * time.Millisecond)
+	}
+
+	assert.Equal(t, restores_core.RestoreStatusCanceled, restore.Status)
+
+	auditLogService := audit_logs.GetAuditLogService()
+	auditLogs, err := auditLogService.GetWorkspaceAuditLogs(
+		workspace.ID,
+		&audit_logs.GetAuditLogsRequest{Limit: 100, Offset: 0},
+	)
+	assert.NoError(t, err)
+
+	foundCancelLog := false
+	for _, log := range auditLogs.AuditLogs {
+		if strings.Contains(log.Message, "Restore cancelled") &&
+			strings.Contains(log.Message, database.Name) {
+			foundCancelLog = true
+			break
+		}
+	}
+	assert.True(t, foundCancelLog, "Cancel audit log should be created")
+
+	time.Sleep(200 * time.Millisecond)
+}
+
+func Test_RestoreBackup_WithParallelRestoreInProgress_ReturnsError(t *testing.T) {
+	router := createTestRouter()
+
+	_, cleanup := SetupMockRestoreNode(t)
+	defer cleanup()
+
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+
+	_, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
+
+	request := restores_core.RestoreBackupRequest{
+		PostgresqlDatabase: &postgresql.PostgresqlDatabase{
+			Version:  tools.PostgresqlVersion16,
+			Host:     env_config.GetEnv().TestLocalhost,
+			Port:     5432,
+			Username: "postgres",
+			Password: "postgres",
+		},
+	}
+
+	testResp := test_utils.MakePostRequest(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/restores/%s/restore", backup.ID.String()),
+		"Bearer "+owner.Token,
+		request,
+		http.StatusOK,
+	)
+	assert.Contains(t, string(testResp.Body), "restore started successfully")
+
+	testResp2 := test_utils.MakePostRequest(
+		t,
+		router,
+		fmt.Sprintf("/api/v1/restores/%s/restore", backup.ID.String()),
+		"Bearer "+owner.Token,
+		request,
+		http.StatusBadRequest,
+	)
+
+	assert.Contains(t, string(testResp2.Body), "another restore is already in progress")
+}
+
+func createTestRouter() *gin.Engine {
+	return CreateTestRouter()
 }
 
 func createTestDatabaseWithBackupForRestore(
 	workspace *workspaces_models.Workspace,
 	owner *users_dto.SignInResponseDTO,
 	router *gin.Engine,
-) (*databases.Database, *backups.Backup) {
+) (*databases.Database, *backups_core.Backup) {
 	database := createTestDatabase("Test Database", workspace.ID, owner.Token, router)
 	storage := createTestStorage(workspace.ID)
 
@@ -390,20 +591,11 @@ func createTestDatabase(
 	token string,
 	router *gin.Engine,
 ) *databases.Database {
-	testDbName := "test_db"
 	request := databases.Database{
 		WorkspaceID: &workspaceID,
 		Name:        name,
 		Type:        databases.DatabaseTypePostgres,
-		Postgresql: &postgresql.PostgresqlDatabase{
-			Version:  tools.PostgresqlVersion16,
-			Host:     "localhost",
-			Port:     5432,
-			Username: "postgres",
-			Password: "postgres",
-			Database: &testDbName,
-			CpuCount: 1,
-		},
+		Postgresql:  databases.GetTestPostgresConfig(),
 	}
 
 	w := workspaces_testing.MakeAPIRequest(
@@ -434,17 +626,28 @@ func createTestMySQLDatabase(
 	token string,
 	router *gin.Engine,
 ) *databases.Database {
-	testDbName := "test_db"
+	env := env_config.GetEnv()
+	portStr := env.TestMysql80Port
+	if portStr == "" {
+		portStr = "33080"
+	}
+
+	port, err := strconv.Atoi(portStr)
+	if err != nil {
+		panic(fmt.Sprintf("Failed to parse TEST_MYSQL_80_PORT: %v", err))
+	}
+
+	testDbName := "testdb"
 	request := databases.Database{
 		WorkspaceID: &workspaceID,
 		Name:        name,
 		Type:        databases.DatabaseTypeMysql,
 		Mysql: &mysql.MysqlDatabase{
 			Version:  tools.MysqlVersion80,
-			Host:     "localhost",
-			Port:     3306,
-			Username: "root",
-			Password: "password",
+			Host:     env_config.GetEnv().TestLocalhost,
+			Port:     port,
+			Username: "testuser",
+			Password: "testpassword",
 			Database: &testDbName,
 		},
 	}
@@ -495,7 +698,7 @@ func createTestStorage(workspaceID uuid.UUID) *storages.Storage {
 func createTestBackup(
 	database *databases.Database,
 	owner *users_dto.SignInResponseDTO,
-) *backups.Backup {
+) *backups_core.Backup {
 	fieldEncryptor := util_encryption.GetFieldEncryptor()
 	userService := users_services.GetUserService()
 	user, err := userService.GetUserFromToken(owner.Token)
@@ -508,17 +711,17 @@ func createTestBackup(
 		panic("No storage found for workspace")
 	}
 
-	backup := &backups.Backup{
+	backup := &backups_core.Backup{
 		ID:               uuid.New(),
 		DatabaseID:       database.ID,
 		StorageID:        storages[0].ID,
-		Status:           backups.BackupStatusCompleted,
+		Status:           backups_core.BackupStatusCompleted,
 		BackupSizeMb:     10.5,
 		BackupDurationMs: 1000,
 		CreatedAt:        time.Now().UTC(),
 	}
 
-	repo := &backups.BackupRepository{}
+	repo := &backups_core.BackupRepository{}
 	if err := repo.Save(backup); err != nil {
 		panic(err)
 	}
@@ -526,7 +729,13 @@ func createTestBackup(
 	dummyContent := []byte("dummy backup content for testing")
 	reader := strings.NewReader(string(dummyContent))
 	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
-	if err := storages[0].SaveFile(context.Background(), fieldEncryptor, logger, backup.ID, reader); err != nil {
+	if err := storages[0].SaveFile(
+		context.Background(),
+		fieldEncryptor,
+		logger,
+		backup.ID,
+		reader,
+	); err != nil {
 		panic(fmt.Sprintf("Failed to create test backup file: %v", err))
 	}