Merge pull request #349 from databasus/develop

Develop

.github/workflows/ci-release.yml

@@ -9,15 +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: "1.24.9"
+      - name: Configure Git for container
+        run: |
+          git config --global --add safe.directory "$GITHUB_WORKSPACE"
+
+      - name: Download Go modules
+        run: |
+          cd backend
+          go mod download
 
       - name: Install golangci-lint
         run: |
@@ -70,6 +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]
@@ -93,34 +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: "1.24.9"
+      - name: Configure Git for container
+        run: |
+          git config --global --add safe.directory "$GITHUB_WORKSPACE"
+
+      - name: Download Go modules
+        run: |
+          cd backend
+          go mod download
 
       - name: Create .env file for testing
         run: |
@@ -132,14 +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 }}
@@ -197,12 +213,14 @@ jobs:
           TEST_MONGODB_60_PORT=27060
           TEST_MONGODB_70_PORT=27070
           TEST_MONGODB_82_PORT=27082
-          # Valkey (cache)
-          VALKEY_HOST=localhost
+          # 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
@@ -220,25 +238,25 @@ jobs:
           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
-          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 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..."
@@ -297,63 +315,63 @@ jobs:
           mkdir -p databasus-data/backups
           mkdir -p databasus-data/temp
 
-      - 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: Setup PostgreSQL, MySQL and MariaDB client tools from pre-built assets
         run: |
           cd backend/tools
-          
+
           # 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
             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..."
-          sudo dpkg -i /tmp/mongodb-database-tools.deb || sudo apt-get install -f -y --no-install-recommends
-          
+          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"
 
@@ -401,10 +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:
@@ -417,10 +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
@@ -434,6 +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")
@@ -453,7 +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
@@ -471,7 +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
@@ -497,10 +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
 
@@ -529,12 +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
 
@@ -564,21 +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")
@@ -598,6 +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 "$line" | cut -d'|' -f1)
@@ -631,7 +690,7 @@ jobs:
                 fi
               fi
             fi
-          done <<< "$COMMITS"
+          done < <(printf '%s\n' "$COMMITS")
 
           # Build changelog sections
           if [ -n "$FEATURES" ]; then
@@ -670,16 +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 "$GITHUB_WORKSPACE"
+
       - name: Set up Helm
         uses: azure/setup-helm@v4
         with:
@@ -701,4 +777,4 @@ jobs:
       - name: Push Helm chart to GHCR
         run: |
           VERSION="${{ needs.determine-version.outputs.new_version }}"
-          helm push databasus-${VERSION}.tgz oci://ghcr.io/databasus/charts
+          helm push databasus-${VERSION}.tgz oci://ghcr.io/databasus/charts

.gitignore

@@ -1,3 +1,4 @@
+ansible/
 postgresus_data/
 postgresus-data/
 databasus-data/
@@ -9,4 +10,5 @@ node_modules/
 /articles
 
 .DS_Store
-/scripts
+/scripts
+.vscode/settings.json

.pre-commit-config.yaml

@@ -18,6 +18,13 @@ repos:
         files: ^frontend/.*\.(ts|tsx|js|jsx)$
         pass_filenames: false
 
+      - id: frontend-build
+        name: Frontend Build
+        entry: bash -c "cd frontend && npm run build"
+        language: system
+        files: ^frontend/.*\.(ts|tsx|js|jsx|json|css)$
+        pass_filenames: false
+
   # Backend checks
   - repo: local
     hooks:

AGENTS.md

@@ -1,30 +1,94 @@
 # Agent Rules and Guidelines
 
-This document contains all coding standards, conventions and best practices recommended for the Databasus project.
+This document contains all coding standards, conventions and best practices recommended for the TgTaps project.
 This is NOT a strict set of rules, but a set of recommendations to help you write better code.
 
 ---
 
 ## Table of Contents
 
-- [Backend Guidelines](#backend-guidelines)
-  - [Code Style](#code-style)
+- [Engineering philosophy](#engineering-philosophy)
+- [Backend guidelines](#backend-guidelines)
+  - [Code style](#code-style)
+  - [Boolean naming](#boolean-naming)
+  - [Add reasonable new lines between logical statements](#add-reasonable-new-lines-between-logical-statements)
   - [Comments](#comments)
   - [Controllers](#controllers)
-  - [Dependency Injection (DI)](#dependency-injection-di)
+  - [Dependency injection (DI)](#dependency-injection-di)
   - [Migrations](#migrations)
   - [Refactoring](#refactoring)
   - [Testing](#testing)
-  - [Time Handling](#time-handling)
-  - [CRUD Examples](#crud-examples)
-- [Frontend Guidelines](#frontend-guidelines)
-  - [React Component Structure](#react-component-structure)
+  - [Time handling](#time-handling)
+  - [CRUD examples](#crud-examples)
+- [Frontend guidelines](#frontend-guidelines)
+  - [React component structure](#react-component-structure)
 
 ---
 
-## Backend Guidelines
+## Engineering philosophy
 
-### Code Style
+**Think like a skeptical senior engineer and code reviewer. Don't just do what was asked—also think about what should have been asked.**
+
+⚠️ **Balance vigilance with pragmatism:** Catch real issues, not theoretical ones. Don't let perfect be the enemy of good.
+
+### Task context assessment:
+
+**First, assess the task scope:**
+
+- **Trivial** (typos, formatting, simple field adds): Apply directly with minimal analysis
+- **Standard** (CRUD, typical features): Brief assumption check, proceed
+- **Complex** (architecture, security, performance-critical): Full analysis required
+- **Unclear** (ambiguous requirements): Always clarify assumptions first
+
+### For non-trivial tasks:
+
+1. **Restate the objective and list assumptions** (explicit + implicit)
+   - If any assumption is shaky, call it out clearly
+   - Distinguish between what's specified and what you're inferring
+
+2. **Propose appropriate solutions:**
+   - For complex tasks: 2–3 viable approaches (including a simpler baseline)
+   - Recommend one with clear tradeoffs
+   - Consider: complexity, maintainability, performance, future extensibility
+
+3. **Identify risks proactively:**
+   - Edge cases and boundary conditions
+   - Security/privacy pitfalls
+   - Performance risks and scalability concerns
+   - Operational concerns (deployment, observability, rollback, monitoring)
+
+4. **Handle ambiguity:**
+   - If requirements are ambiguous, make a reasonable default and proceed
+   - Clearly label your assumptions
+   - Document what would change under alternative assumptions
+
+5. **Deliver quality:**
+   - Provide a solution that is correct, testable, and maintainable
+   - Include minimal tests or validation steps
+   - Follow project testing philosophy: prefer controller tests over unit tests
+   - Follow all project guidelines from this document
+
+6. **Self-review before finalizing:**
+   - Ask: "What could go wrong?"
+   - Patch the answer accordingly
+   - Verify edge cases are handled
+
+### Application guidelines:
+
+**Scale your response to the task:**
+
+- **Trivial changes:** Steps 5-6 only (deliver quality + self-review)
+- **Standard features:** Steps 1, 5-6 (restate + deliver + review)
+- **Complex/risky changes:** All steps 1-6
+- **Ambiguous requests:** Steps 1, 4 mandatory
+
+**Be proportionally thorough—brief for simple tasks, comprehensive for risky ones. Avoid analysis paralysis.**
+
+---
+
+## Backend guidelines
+
+### Code style
 
 **Always place private methods to the bottom of file**
 
@@ -32,7 +96,7 @@ This rule applies to ALL Go files including tests, services, controllers, reposi
 
 In Go, exported (public) functions/methods start with uppercase letters, while unexported (private) ones start with lowercase letters.
 
-#### Structure Order:
+#### Structure order:
 
 1. Type definitions and constants
 2. Public methods/functions (uppercase)
@@ -165,7 +229,7 @@ func (c *ProjectController) extractProjectID(ctx *gin.Context) uuid.UUID {
 }
 ```
 
-#### Key Points:
+#### Key points:
 
 - **Exported/Public** = starts with uppercase letter (CreateUser, GetProject)
 - **Unexported/Private** = starts with lowercase letter (validateUser, handleError)
@@ -175,6 +239,227 @@ func (c *ProjectController) extractProjectID(ctx *gin.Context) uuid.UUID {
 
 ---
 
+### Boolean naming
+
+**Always prefix boolean variables with verbs like `is`, `has`, `was`, `should`, `can`, etc.**
+
+This makes the code more readable and clearly indicates that the variable represents a true/false state.
+
+#### Good examples:
+
+```go
+type User struct {
+    IsActive    bool
+    IsVerified  bool
+    HasAccess   bool
+    WasNotified bool
+}
+
+type BackupConfig struct {
+    IsEnabled       bool
+    ShouldCompress  bool
+    CanRetry        bool
+}
+
+// Variables
+isInProgress := true
+wasCompleted := false
+hasPermission := checkPermissions()
+```
+
+#### Bad examples:
+
+```go
+type User struct {
+    Active    bool  // Should be: IsActive
+    Verified  bool  // Should be: IsVerified
+    Access    bool  // Should be: HasAccess
+}
+
+type BackupConfig struct {
+    Enabled   bool  // Should be: IsEnabled
+    Compress  bool  // Should be: ShouldCompress
+    Retry     bool  // Should be: CanRetry
+}
+
+// Variables
+inProgress := true   // Should be: isInProgress
+completed := false   // Should be: wasCompleted
+permission := true   // Should be: hasPermission
+```
+
+#### Common boolean prefixes:
+
+- **is** - current state (IsActive, IsValid, IsEnabled)
+- **has** - possession or presence (HasAccess, HasPermission, HasError)
+- **was** - past state (WasCompleted, WasNotified, WasDeleted)
+- **should** - intention or recommendation (ShouldRetry, ShouldCompress)
+- **can** - capability or permission (CanRetry, CanDelete, CanEdit)
+- **will** - future state (WillExpire, WillRetry)
+
+---
+
+### Add reasonable new lines between logical statements
+
+**Add blank lines between logical blocks to improve code readability.**
+
+Separate different logical operations within a function with blank lines. This makes the code flow clearer and helps identify distinct steps in the logic.
+
+#### Guidelines:
+
+- Add blank line before final `return` statement
+- Add blank line after variable declarations before using them
+- Add blank line between error handling and subsequent logic
+- Add blank line between different logical operations
+
+#### Bad example (without spacing):
+
+```go
+func (t *Task) BeforeSave(tx *gorm.DB) error {
+	if len(t.Messages) > 0 {
+		messagesBytes, err := json.Marshal(t.Messages)
+		if err != nil {
+			return err
+		}
+		t.MessagesJSON = string(messagesBytes)
+	}
+	return nil
+}
+
+func (t *Task) AfterFind(tx *gorm.DB) error {
+	if t.MessagesJSON != "" {
+		var messages []onewin_dto.TaskCompletionMessage
+		if err := json.Unmarshal([]byte(t.MessagesJSON), &messages); err != nil {
+			return err
+		}
+		t.Messages = messages
+	}
+	return nil
+}
+```
+
+#### Good example (with proper spacing):
+
+```go
+func (t *Task) BeforeSave(tx *gorm.DB) error {
+	if len(t.Messages) > 0 {
+		messagesBytes, err := json.Marshal(t.Messages)
+		if err != nil {
+			return err
+		}
+
+		t.MessagesJSON = string(messagesBytes)
+	}
+
+	return nil
+}
+
+func (t *Task) AfterFind(tx *gorm.DB) error {
+	if t.MessagesJSON != "" {
+		var messages []onewin_dto.TaskCompletionMessage
+		if err := json.Unmarshal([]byte(t.MessagesJSON), &messages); err != nil {
+			return err
+		}
+
+		t.Messages = messages
+	}
+
+	return nil
+}
+```
+
+#### More examples:
+
+**Service method with multiple operations:**
+
+```go
+func (s *UserService) CreateUser(request *CreateUserRequest) (*User, error) {
+	// Validate input
+	if err := s.validateUserRequest(request); err != nil {
+		return nil, err
+	}
+
+	// Create user entity
+	user := &User{
+		ID:    uuid.New(),
+		Name:  request.Name,
+		Email: request.Email,
+	}
+
+	// Save to database
+	if err := s.repository.Create(user); err != nil {
+		return nil, err
+	}
+
+	// Send notification
+	s.notificationService.SendWelcomeEmail(user.Email)
+
+	return user, nil
+}
+```
+
+**Repository method with query building:**
+
+```go
+func (r *Repository) GetFiltered(filters *Filters) ([]*Entity, error) {
+	query := storage.GetDb().Model(&Entity{})
+
+	if filters.Status != "" {
+		query = query.Where("status = ?", filters.Status)
+	}
+
+	if filters.CreatedAfter != nil {
+		query = query.Where("created_at > ?", filters.CreatedAfter)
+	}
+
+	var entities []*Entity
+	if err := query.Find(&entities).Error; err != nil {
+		return nil, err
+	}
+
+	return entities, nil
+}
+```
+
+**Repository method with error handling:**
+
+Bad (without spacing):
+
+```go
+func (r *Repository) FindById(id uuid.UUID) (*models.Task, error) {
+	var task models.Task
+	result := storage.GetDb().Where("id = ?", id).First(&task)
+	if result.Error != nil {
+		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
+			return nil, errors.New("task not found")
+		}
+		return nil, result.Error
+	}
+	return &task, nil
+}
+```
+
+Good (with proper spacing):
+
+```go
+func (r *Repository) FindById(id uuid.UUID) (*models.Task, error) {
+	var task models.Task
+
+	result := storage.GetDb().Where("id = ?", id).First(&task)
+	if result.Error != nil {
+		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
+			return nil, errors.New("task not found")
+		}
+
+		return nil, result.Error
+	}
+
+	return &task, nil
+}
+```
+
+---
+
 ### Comments
 
 #### Guidelines
@@ -183,13 +468,14 @@ func (c *ProjectController) extractProjectID(ctx *gin.Context) uuid.UUID {
 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:
+#### 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
+- **Do not write summary sections in .md files unless directly requested** - Avoid adding "Summary" or "Conclusion" sections at the end of documentation files unless the user explicitly asks for them
 
 #### Example of useless comments:
 
@@ -221,7 +507,7 @@ func CreateValidLogItems(count int, uniqueID string) []logs_receiving.LogItemReq
 
 ### Controllers
 
-#### Controller Guidelines:
+#### Controller guidelines:
 
 1. **When we write controller:**
    - We combine all routes to single controller
@@ -353,7 +639,7 @@ func (c *AuditLogController) GetUserAuditLogs(ctx *gin.Context) {
 
 ---
 
-### Dependency Injection (DI)
+### Dependency injection (DI)
 
 For DI files use **implicit fields declaration styles** (especially for controllers, services, repositories, use cases, etc., not simple data structures).
 
@@ -381,7 +667,7 @@ var orderController = &OrderController{
 
 **This is needed to avoid forgetting to update DI style when we add new dependency.**
 
-#### Force Such Usage
+#### Force such usage
 
 Please force such usage if file look like this (see some services\controllers\repos definitions and getters):
 
@@ -427,6 +713,134 @@ func GetOrderRepository() *repositories.OrderRepository {
 }
 ```
 
+#### SetupDependencies() pattern
+
+**All `SetupDependencies()` functions must use sync.Once to ensure idempotent execution.**
+
+This pattern allows `SetupDependencies()` to be safely called multiple times (especially in tests) while ensuring the actual setup logic executes only once.
+
+**Implementation pattern:**
+
+```go
+package feature
+
+import (
+    "sync"
+    "sync/atomic"
+    "databasus-backend/internal/util/logger"
+)
+
+var (
+    setupOnce sync.Once
+    isSetup   atomic.Bool
+)
+
+func SetupDependencies() {
+    wasAlreadySetup := isSetup.Load()
+
+    setupOnce.Do(func() {
+        // Initialize dependencies here
+        someService.SetDependency(otherService)
+        anotherService.AddListener(listener)
+
+        isSetup.Store(true)
+    })
+
+    if wasAlreadySetup {
+        logger.GetLogger().Warn("SetupDependencies called multiple times, ignoring subsequent call")
+    }
+}
+```
+
+**Why this pattern:**
+
+- **Tests can call multiple times**: Test setup often calls `SetupDependencies()` multiple times without issues
+- **Thread-safe**: Works correctly with concurrent calls (nanoseconds or seconds apart)
+- **Idempotent**: Subsequent calls are safe, only log warning
+- **No panics**: Does not break tests or production code on multiple calls
+
+**Key Points:**
+
+1. Check `isSetup.Load()` **before** calling `Do()` to detect previous executions
+2. Set `isSetup.Store(true)` **inside** the `Do()` closure after setup completes
+3. Log warning if already setup (helps identify unnecessary duplicate calls)
+4. All setup logic must be inside the `Do()` closure
+
+---
+
+### Background services
+
+**All background service `Run()` methods must panic if called multiple times to prevent corrupted states.**
+
+Background services run infinite loops and must never be started twice on the same instance. Multiple calls indicate a serious bug that would cause duplicate goroutines, resource leaks, and data corruption.
+
+**Implementation pattern:**
+
+```go
+package feature
+
+import (
+    "context"
+    "fmt"
+    "sync"
+    "sync/atomic"
+)
+
+type BackgroundService struct {
+    // ... existing fields ...
+    runOnce sync.Once
+    hasRun  atomic.Bool
+}
+
+func (s *BackgroundService) Run(ctx context.Context) {
+    wasAlreadyRun := s.hasRun.Load()
+
+    s.runOnce.Do(func() {
+        s.hasRun.Store(true)
+
+        // Existing infinite loop logic
+        ticker := time.NewTicker(1 * time.Minute)
+        defer ticker.Stop()
+
+        for {
+            select {
+            case <-ctx.Done():
+                return
+            case <-ticker.C:
+                s.doWork()
+            }
+        }
+    })
+
+    if wasAlreadyRun {
+        panic(fmt.Sprintf("%T.Run() called multiple times", s))
+    }
+}
+```
+
+**Why panic instead of warning:**
+
+- **Prevents corruption**: Multiple `Run()` calls would create duplicate goroutines consuming resources
+- **Fails fast**: Catches critical bugs immediately in tests and production
+- **Clear indication**: Panic clearly indicates a serious programming error
+- **Applies everywhere**: Same protection in tests and production
+
+**When this applies:**
+
+- All background services with infinite loops
+- Registry services (BackupNodesRegistry, RestoreNodesRegistry)
+- Scheduler services (BackupsScheduler, RestoresScheduler)
+- Worker nodes (BackuperNode, RestorerNode)
+- Cleanup services (AuditLogBackgroundService, DownloadTokenBackgroundService)
+
+**Key Points:**
+
+1. Check `hasRun.Load()` **before** calling `Do()` to detect previous executions
+2. Set `hasRun.Store(true)` **inside** the `Do()` closure before starting work
+3. **Always panic** if already run (never just log warning)
+4. All run logic must be inside the `Do()` closure
+5. This pattern is **thread-safe** for any timing (concurrent or sequential calls)
+
 ---
 
 ### Migrations
@@ -477,14 +891,14 @@ You can shortify, make more readable, improve code quality, etc. Common logic ca
 
 **After writing tests, always launch them and verify that they pass.**
 
-#### Test Naming Format
+#### Test naming format
 
 Use these naming patterns:
 
 - `Test_WhatWeDo_WhatWeExpect`
 - `Test_WhatWeDo_WhichConditions_WhatWeExpect`
 
-#### Examples from Real Codebase:
+#### Examples from real codebase:
 
 - `Test_CreateApiKey_WhenUserIsProjectOwner_ApiKeyCreated`
 - `Test_UpdateProject_WhenUserIsProjectAdmin_ProjectUpdated`
@@ -492,22 +906,22 @@ Use these naming patterns:
 - `Test_GetProjectAuditLogs_WithDifferentUserRoles_EnforcesPermissionsCorrectly`
 - `Test_ProjectLifecycleE2E_CompletesSuccessfully`
 
-#### Testing Philosophy
+#### Testing philosophy
 
-**Prefer Controllers Over Unit Tests:**
+**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:**
+**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:**
+**Refactor existing tests:**
 
 - When working with existing tests, always look for opportunities to refactor and improve
 - Extract repetitive setup code to common utilities
@@ -516,7 +930,44 @@ Use these naming patterns:
 - Consolidate similar test patterns across different test files
 - Make tests more readable and maintainable for other developers
 
-#### Testing Utilities Structure
+**Clean up test data:**
+
+- If the feature supports cleanup operations (DELETE endpoints, cleanup methods), use them in tests
+- Clean up resources after test execution to avoid test data pollution
+- Use `defer` statements or explicit cleanup calls at the end of tests
+- Prioritize using API methods for cleanup (not direct database deletion)
+- Examples:
+  - CRUD features: delete created records via DELETE endpoint
+  - File uploads: remove uploaded files
+  - Background jobs: stop schedulers or cancel running tasks
+- Skip cleanup only when:
+  - Tests run in isolated transactions that auto-rollback
+  - Cleanup endpoint doesn't exist yet
+  - Test explicitly validates failure scenarios where cleanup isn't possible
+
+**Example:**
+
+```go
+func Test_BackupLifecycle_CreateAndDelete(t *testing.T) {
+    router := createTestRouter()
+    workspace := workspaces_testing.CreateTestWorkspace("Test", owner)
+
+    // Create backup config
+    config := createBackupConfig(t, router, workspace.ID, owner.Token)
+
+    // Cleanup at end of test
+    defer deleteBackupConfig(t, router, workspace.ID, config.ID, owner.Token)
+
+    // Test operations...
+    triggerBackup(t, router, workspace.ID, config.ID, owner.Token)
+
+    // Verify backup was created
+    backups := getBackups(t, router, workspace.ID, owner.Token)
+    assert.NotEmpty(t, backups)
+}
+```
+
+#### Testing utilities structure
 
 **Create `testing.go` or `testing/testing.go` files with common utilities:**
 
@@ -552,7 +1003,7 @@ func AddMemberToProject(project *projects_models.Project, member *users_dto.Sign
 }
 ```
 
-#### Controller Test Examples
+#### Controller test examples
 
 **Permission-based testing:**
 
@@ -619,7 +1070,7 @@ func Test_ProjectLifecycleE2E_CompletesSuccessfully(t *testing.T) {
 
 ---
 
-### Time Handling
+### Time handling
 
 **Always use `time.Now().UTC()` instead of `time.Now()`**
 
@@ -627,7 +1078,7 @@ This ensures consistent timezone handling across the application.
 
 ---
 
-### CRUD Examples
+### CRUD examples
 
 This is an example of complete CRUD implementation structure:
 
@@ -1291,9 +1742,9 @@ func createTimedLog(db *gorm.DB, userID *uuid.UUID, message string, createdAt ti
 
 ---
 
-## Frontend Guidelines
+## Frontend guidelines
 
-### React Component Structure
+### React component structure
 
 Write React components with the following structure:
 
@@ -1327,7 +1778,7 @@ export const ReactComponent = ({ someValue }: Props): JSX.Element => {
 }
 ```
 
-#### Structure Order:
+#### Structure order:
 
 1. **Props interface** - Define component props
 2. **Helper functions** (outside component) - Pure utility functions

Dockerfile

@@ -251,6 +251,36 @@ fi
 # PostgreSQL 17 binary paths
 PG_BIN="/usr/lib/postgresql/17/bin"
 
+# Generate runtime configuration for frontend
+echo "Generating runtime configuration..."
+
+# Detect if email is configured (both SMTP_HOST and DATABASUS_URL must be set)
+if [ -n "\${SMTP_HOST:-}" ] && [ -n "\${DATABASUS_URL:-}" ]; then
+  IS_EMAIL_CONFIGURED="true"
+else
+  IS_EMAIL_CONFIGURED="false"
+fi
+
+cat > /app/ui/build/runtime-config.js <<JSEOF
+// Runtime configuration injected at container startup
+// This file is generated dynamically and should not be edited manually
+window.__RUNTIME_CONFIG__ = {
+  IS_CLOUD: '\${IS_CLOUD:-false}',
+  GITHUB_CLIENT_ID: '\${GITHUB_CLIENT_ID:-}',
+  GOOGLE_CLIENT_ID: '\${GOOGLE_CLIENT_ID:-}',
+  IS_EMAIL_CONFIGURED: '\$IS_EMAIL_CONFIGURED'
+};
+JSEOF
+
+# Inject analytics script if provided (only if not already injected)
+if [ -n "\${ANALYTICS_SCRIPT:-}" ]; then
+  if ! grep -q "rybbit.databasus.com" /app/ui/build/index.html 2>/dev/null; then
+    echo "Injecting analytics script..."
+    sed -i "s#</head>#  \${ANALYTICS_SCRIPT}\\
+  </head>#" /app/ui/build/index.html
+  fi
+fi
+
 # Ensure proper ownership of data directory
 echo "Setting up data directory permissions..."
 mkdir -p /databasus-data/pgdata
@@ -372,9 +402,37 @@ SQL
 
 # Start the main application
 echo "Starting Databasus application..."
+
+# Check and warn about external database/Valkey usage
+if [ -n "\${DANGEROUS_EXTERNAL_DATABASE_DSN:-}" ]; then
+    echo ""
+    echo "=========================================="
+    echo "WARNING: Using external database"
+    echo "=========================================="
+    echo "DANGEROUS_EXTERNAL_DATABASE_DSN is set."
+    echo "Application will connect to external PostgreSQL instead of internal instance."
+    echo "Internal PostgreSQL is still running in the background."
+    echo "=========================================="
+    echo ""
+fi
+
+if [ -n "\${DANGEROUS_VALKEY_HOST:-}" ]; then
+    echo ""
+    echo "=========================================="
+    echo "WARNING: Using external Valkey"
+    echo "=========================================="
+    echo "DANGEROUS_VALKEY_HOST is set."
+    echo "Application will connect to external Valkey instead of internal instance."
+    echo "Internal Valkey is still running in the background."
+    echo "=========================================="
+    echo ""
+fi
+
 exec ./main
 EOF
 
+LABEL org.opencontainers.image.source="https://github.com/databasus/databasus"
+
 RUN chmod +x /app/start.sh
 
 EXPOSE 4005
@@ -383,4 +441,4 @@ EXPOSE 4005
 VOLUME ["/databasus-data"]
 
 ENTRYPOINT ["/app/start.sh"]
-CMD []
+CMD []

backend/.env.development.example

@@ -6,6 +6,11 @@ DEV_DB_PASSWORD=Q1234567
 ENV_MODE=development
 # logging
 SHOW_DB_INSTALLATION_VERIFICATION_LOGS=true
+VICTORIA_LOGS_URL=http://localhost:9428
+VICTORIA_LOGS_PASSWORD=devpassword
+# 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

backend/.gitignore

@@ -18,4 +18,5 @@ pgdata-for-restore/
 temp/
 cmd.exe
 temp/
-valkey-data/
+valkey-data/
+victoria-logs-data/

backend/cmd/main.go

@@ -25,10 +25,10 @@ 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"
-	task_registry "databasus-backend/internal/features/tasks/registry"
 	users_controllers "databasus-backend/internal/features/users/controllers"
 	users_middleware "databasus-backend/internal/features/users/middleware"
 	users_services "databasus-backend/internal/features/users/services"
@@ -185,6 +185,9 @@ func startServerWithGracefulShutdown(log *slog.Logger, app *gin.Engine) {
 	<-quit
 	log.Info("Shutdown signal received")
 
+	// Gracefully shutdown VictoriaLogs writer
+	logger.ShutdownVictoriaLogs(5 * time.Second)
+
 	// The context is used to inform the server it has 10 seconds to finish
 	// the request it is currently handling
 	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
@@ -272,8 +275,12 @@ func runBackgroundTasks(log *slog.Logger) {
 			backuping.GetBackupsScheduler().Run(ctx)
 		})
 
+		go runWithPanicLogging(log, "backup cleaner background service", func() {
+			backuping.GetBackupCleaner().Run(ctx)
+		})
+
 		go runWithPanicLogging(log, "restore background service", func() {
-			restores.GetRestoreBackgroundService().Run(ctx)
+			restoring.GetRestoresScheduler().Run(ctx)
 		})
 
 		go runWithPanicLogging(log, "healthcheck attempt background service", func() {
@@ -288,21 +295,29 @@ func runBackgroundTasks(log *slog.Logger) {
 			backups_download.GetDownloadTokenBackgroundService().Run(ctx)
 		})
 
-		go runWithPanicLogging(log, "task nodes registry background service", func() {
-			task_registry.GetTaskNodesRegistry().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().IsBackupNode {
+	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 node tasks as not backup node")
+		log.Info("Skipping backup/restore node tasks as not backup node")
 	}
 }
 

backend/docker-compose.yml.example

@@ -34,6 +34,20 @@ services:
       retries: 5
       start_period: 20s
 
+  # VictoriaLogs for external logging
+  victoria-logs:
+    image: victoriametrics/victoria-logs:latest
+    container_name: victoria-logs
+    ports:
+      - "9428:9428"
+    command:
+      - -storageDataPath=/victoria-logs-data
+      - -retentionPeriod=7d
+      - -httpAuth.password=devpassword
+    volumes:
+      - ./victoria-logs-data:/victoria-logs-data
+    restart: unless-stopped
+
   # Test MinIO container
   test-minio:
     image: minio/minio:latest

backend/internal/config/config.go

@@ -9,7 +9,6 @@ import (
 	"strings"
 	"sync"
 
-	"github.com/google/uuid"
 	"github.com/ilyakaznacheev/cleanenv"
 	"github.com/joho/godotenv"
 )
@@ -23,19 +22,30 @@ const (
 
 type EnvVariables struct {
 	IsTesting            bool
-	DatabaseDsn          string            `env:"DATABASE_DSN"         required:"true"`
 	EnvMode              env_utils.EnvMode `env:"ENV_MODE"             required:"true"`
 	PostgresesInstallDir string            `env:"POSTGRES_INSTALL_DIR"`
 	MysqlInstallDir      string            `env:"MYSQL_INSTALL_DIR"`
 	MariadbInstallDir    string            `env:"MARIADB_INSTALL_DIR"`
 	MongodbInstallDir    string            `env:"MONGODB_INSTALL_DIR"`
 
-	ShowDbInstallationVerificationLogs bool `env:"SHOW_DB_INSTALLATION_VERIFICATION_LOGS"`
+	// Internal database
+	DatabaseDsn string `env:"DATABASE_DSN"    required:"true"`
+	// Internal Valkey
+	ValkeyHost     string `env:"VALKEY_HOST"     required:"true"`
+	ValkeyPort     string `env:"VALKEY_PORT"     required:"true"`
+	ValkeyUsername string `env:"VALKEY_USERNAME" required:"true"`
+	ValkeyPassword string `env:"VALKEY_PASSWORD" required:"true"`
+	ValkeyIsSsl    bool   `env:"VALKEY_IS_SSL"   required:"true"`
+
+	IsCloud       bool   `env:"IS_CLOUD"`
+	TestLocalhost string `env:"TEST_LOCALHOST"`
+
+	ShowDbInstallationVerificationLogs bool `env:"SHOW_DB_INSTALLATION_VERIFICATION_LOGS"`
+	IsSkipExternalResourcesTests       bool `env:"IS_SKIP_EXTERNAL_RESOURCES_TESTS"`
 
-	NodeID                   string
 	IsManyNodesMode          bool `env:"IS_MANY_NODES_MODE"`
 	IsPrimaryNode            bool `env:"IS_PRIMARY_NODE"`
-	IsBackupNode             bool `env:"IS_BACKUP_NODE"`
+	IsProcessingNode         bool `env:"IS_PROCESSING_NODE"`
 	NodeNetworkThroughputMBs int  `env:"NODE_NETWORK_THROUGHPUT_MBPS"`
 
 	DataFolder    string
@@ -88,13 +98,6 @@ 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"`
@@ -111,6 +114,15 @@ type EnvVariables struct {
 	TestSupabaseUsername string `env:"TEST_SUPABASE_USERNAME"`
 	TestSupabasePassword string `env:"TEST_SUPABASE_PASSWORD"`
 	TestSupabaseDatabase string `env:"TEST_SUPABASE_DATABASE"`
+
+	// SMTP configuration (optional)
+	SMTPHost     string `env:"SMTP_HOST"`
+	SMTPPort     int    `env:"SMTP_PORT"`
+	SMTPUser     string `env:"SMTP_USER"`
+	SMTPPassword string `env:"SMTP_PASSWORD"`
+
+	// Application URL (optional) - used for email links
+	DatabasusURL string `env:"DATABASUS_URL"`
 }
 
 var (
@@ -176,6 +188,16 @@ func loadEnvVariables() {
 		env.ShowDbInstallationVerificationLogs = true
 	}
 
+	// Set default value for IsSkipExternalTests if not defined
+	if os.Getenv("IS_SKIP_EXTERNAL_RESOURCES_TESTS") == "" {
+		env.IsSkipExternalResourcesTests = false
+	}
+
+	// Set default value for IsCloud if not defined
+	if os.Getenv("IS_CLOUD") == "" {
+		env.IsCloud = false
+	}
+
 	for _, arg := range os.Args {
 		if strings.Contains(arg, "test") {
 			env.IsTesting = true
@@ -183,6 +205,14 @@ func loadEnvVariables() {
 		}
 	}
 
+	// Check for external database override
+	if externalDsn := os.Getenv("DANGEROUS_EXTERNAL_DATABASE_DSN"); externalDsn != "" {
+		log.Warn(
+			"Using DANGEROUS_EXTERNAL_DATABASE_DSN - connecting to external database instead of internal PostgreSQL",
+		)
+		env.DatabaseDsn = externalDsn
+	}
+
 	if env.DatabaseDsn == "" {
 		log.Error("DATABASE_DSN is empty")
 		os.Exit(1)
@@ -230,14 +260,17 @@ func loadEnvVariables() {
 		env.ShowDbInstallationVerificationLogs,
 	)
 
-	env.NodeID = uuid.New().String()
 	if env.NodeNetworkThroughputMBs == 0 {
 		env.NodeNetworkThroughputMBs = 125 // 1 Gbit/s
 	}
 
 	if !env.IsManyNodesMode {
 		env.IsPrimaryNode = true
-		env.IsBackupNode = true
+		env.IsProcessingNode = true
+	}
+
+	if env.TestLocalhost == "" {
+		env.TestLocalhost = "localhost"
 	}
 
 	// Valkey
@@ -250,6 +283,27 @@ func loadEnvVariables() {
 		os.Exit(1)
 	}
 
+	// Check for external Valkey override
+	if externalValkeyHost := os.Getenv("DANGEROUS_VALKEY_HOST"); externalValkeyHost != "" {
+		log.Warn(
+			"Using DANGEROUS_VALKEY_* variables - connecting to external Valkey instead of internal instance",
+		)
+		env.ValkeyHost = externalValkeyHost
+
+		if externalValkeyPort := os.Getenv("DANGEROUS_VALKEY_PORT"); externalValkeyPort != "" {
+			env.ValkeyPort = externalValkeyPort
+		}
+		if externalValkeyUsername := os.Getenv("DANGEROUS_VALKEY_USERNAME"); externalValkeyUsername != "" {
+			env.ValkeyUsername = externalValkeyUsername
+		}
+		if externalValkeyPassword := os.Getenv("DANGEROUS_VALKEY_PASSWORD"); externalValkeyPassword != "" {
+			env.ValkeyPassword = externalValkeyPassword
+		}
+		if externalValkeyIsSsl := os.Getenv("DANGEROUS_VALKEY_IS_SSL"); externalValkeyIsSsl != "" {
+			env.ValkeyIsSsl = externalValkeyIsSsl == "true"
+		}
+	}
+
 	// Store the data and temp folders one level below the root
 	// (projectRoot/databasus-data -> /databasus-data)
 	env.DataFolder = filepath.Join(filepath.Dir(backendRoot), "databasus-data", "backups")

backend/internal/features/audit_logs/background_service.go

@@ -2,34 +2,50 @@ package audit_logs
 
 import (
 	"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(ctx context.Context) {
-	s.logger.Info("Starting audit log cleanup background service")
+	wasAlreadyRun := s.hasRun.Load()
 
-	if ctx.Err() != nil {
-		return
-	}
+	s.runOnce.Do(func() {
+		s.hasRun.Store(true)
 
-	ticker := time.NewTicker(1 * time.Hour)
-	defer ticker.Stop()
+		s.logger.Info("Starting audit log cleanup background service")
 
-	for {
-		select {
-		case <-ctx.Done():
+		if ctx.Err() != nil {
 			return
-		case <-ticker.C:
-			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()
+
+		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/backuping/backuper.go

@@ -2,23 +2,25 @@ 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"
-	task_registry "databasus-backend/internal/features/tasks/registry"
 	workspaces_services "databasus-backend/internal/features/workspaces/services"
 	util_encryption "databasus-backend/internal/util/encryption"
-	"errors"
-	"fmt"
-	"log/slog"
-	"slices"
-	"strings"
-	"time"
-
-	"github.com/google/uuid"
 )
 
 const (
@@ -35,70 +37,87 @@ type BackuperNode struct {
 	storageService      *storages.StorageService
 	notificationSender  backups_core.NotificationSender
 	backupCancelManager *tasks_cancellation.TaskCancelManager
-	tasksRegistry       *task_registry.TaskNodesRegistry
+	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) {
-	n.lastHeartbeat = time.Now().UTC()
+	wasAlreadyRun := n.hasRun.Load()
 
-	throughputMBs := config.GetEnv().NodeNetworkThroughputMBs
+	n.runOnce.Do(func() {
+		n.hasRun.Store(true)
 
-	backupNode := task_registry.TaskNode{
-		ID:            n.nodeID,
-		ThroughputMBs: throughputMBs,
-	}
+		n.lastHeartbeat = time.Now().UTC()
 
-	if err := n.tasksRegistry.HearthbeatNodeInRegistry(time.Now().UTC(), backupNode); err != nil {
-		n.logger.Error("Failed to register node in registry", "error", err)
-		panic(err)
-	}
+		throughputMBs := config.GetEnv().NodeNetworkThroughputMBs
 
-	backupHandler := func(backupID uuid.UUID, isCallNotifier bool) {
-		n.MakeBackup(backupID, isCallNotifier)
-		if err := n.tasksRegistry.PublishTaskCompletion(n.nodeID.String(), backupID); err != nil {
-			n.logger.Error(
-				"Failed to publish backup completion",
-				"error",
-				err,
-				"backupID",
-				backupID,
-			)
+		backupNode := BackupNode{
+			ID:            n.nodeID,
+			ThroughputMBs: throughputMBs,
+			LastHeartbeat: time.Now().UTC(),
 		}
-	}
 
-	if err := n.tasksRegistry.SubscribeNodeForTasksAssignment(n.nodeID.String(), backupHandler); err != nil {
-		n.logger.Error("Failed to subscribe to backup assignments", "error", err)
-		panic(err)
-	}
-	defer func() {
-		if err := n.tasksRegistry.UnsubscribeNodeForTasksAssignments(); err != nil {
-			n.logger.Error("Failed to unsubscribe from backup assignments", "error", err)
+		if err := n.backupNodesRegistry.HearthbeatNodeInRegistry(time.Now().UTC(), backupNode); err != nil {
+			n.logger.Error("Failed to register node in registry", "error", err)
+			panic(err)
 		}
-	}()
 
-	ticker := time.NewTicker(heartbeatTickerInterval)
-	defer ticker.Stop()
+		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,
+					)
+				}
+			}()
+		}
 
-	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.tasksRegistry.UnregisterNodeFromRegistry(backupNode); err != nil {
-				n.logger.Error("Failed to unregister node from registry", "error", err)
+		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)
 			}
+		}()
 
-			return
-		case <-ticker.C:
-			n.sendHeartbeat(&backupNode)
+		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))
 	}
 }
 
@@ -140,21 +159,41 @@ func (n *BackuperNode) MakeBackup(backupID uuid.UUID, isCallNotifier bool) {
 
 	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)
 		}
 	}
 
-	ctx, cancel := context.WithCancel(context.Background())
-	n.backupCancelManager.RegisterTask(backup.ID, cancel)
-	defer n.backupCancelManager.UnregisterTask(backup.ID)
-
 	backupMetadata, err := n.createBackupUseCase.Execute(
 		ctx,
 		backup.ID,
@@ -164,6 +203,29 @@ func (n *BackuperNode) MakeBackup(backupID uuid.UUID, isCallNotifier bool) {
 		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
@@ -357,9 +419,9 @@ func (n *BackuperNode) SendBackupNotification(
 	}
 }
 
-func (n *BackuperNode) sendHeartbeat(backupNode *task_registry.TaskNode) {
+func (n *BackuperNode) sendHeartbeat(backupNode *BackupNode) {
 	n.lastHeartbeat = time.Now().UTC()
-	if err := n.tasksRegistry.HearthbeatNodeInRegistry(time.Now().UTC(), *backupNode); err != nil {
+	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

@@ -1,13 +1,10 @@
 package backuping
 
 import (
-	"context"
-	"errors"
 	"strings"
 	"testing"
 	"time"
 
-	common "databasus-backend/internal/features/backups/backups/common"
 	backups_core "databasus-backend/internal/features/backups/backups/core"
 	backups_config "databasus-backend/internal/features/backups/config"
 	"databasus-backend/internal/features/databases"
@@ -18,7 +15,6 @@ import (
 	workspaces_testing "databasus-backend/internal/features/workspaces/testing"
 	cache_utils "databasus-backend/internal/util/cache"
 
-	"github.com/google/uuid"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
 )
@@ -158,35 +154,120 @@ func Test_BackupExecuted_NotificationSent(t *testing.T) {
 	})
 }
 
-type CreateFailedBackupUsecase struct {
-}
+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)
 
-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")
-}
+	defer func() {
+		// cleanup backups first
+		backups, _ := backupRepository.FindByDatabaseID(database.ID)
+		for _, backup := range backups {
+			backupRepository.DeleteByID(backup.ID)
+		}
 
-type CreateSuccessBackupUsecase struct{}
+		databases.RemoveTestDatabase(database)
+		time.Sleep(50 * time.Millisecond) // Wait for cascading deletes
+		notifiers.RemoveTestNotifier(notifier)
+		storages.RemoveTestStorage(storage.ID)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+	}()
 
-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
+	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 +1,595 @@
+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)
+
+	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)
+	}()
+
+	// 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)
+
+	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)
+	}()
+
+	// 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)
+
+	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)
+	}()
+
+	// 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)
+
+	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)
+	}()
+
+	// 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)
+
+	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)
+	}()
+
+	// 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)
+
+	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)
+	}()
+
+	// 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)
+
+	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)
+	}()
+
+	// 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)
+
+	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(testStorage.ID)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+	}()
+
+	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

@@ -1,7 +1,12 @@
 package backuping
 
 import (
-	"databasus-backend/internal/config"
+	"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"
@@ -9,57 +14,70 @@ import (
 	"databasus-backend/internal/features/notifiers"
 	"databasus-backend/internal/features/storages"
 	tasks_cancellation "databasus-backend/internal/features/tasks/cancellation"
-	task_registry "databasus-backend/internal/features/tasks/registry"
 	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"
-	"time"
-
-	"github.com/google/uuid"
 )
 
 var backupRepository = &backups_core.BackupRepository{}
 
 var taskCancelManager = tasks_cancellation.GetTaskCancelManager()
 
-var nodesRegistry = task_registry.GetTaskNodesRegistry()
+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 {
-	nodeIDStr := config.GetEnv().NodeID
-	nodeID, err := uuid.Parse(nodeIDStr)
-	if err != nil {
-		logger.GetLogger().Error("Failed to parse node ID from config", "error", err)
-		panic(err)
-	}
-	return nodeID
+	return uuid.New()
 }
 
 var backuperNode = &BackuperNode{
-	databases.GetDatabaseService(),
-	encryption.GetFieldEncryptor(),
-	workspaces_services.GetWorkspaceService(),
-	backupRepository,
-	backups_config.GetBackupConfigService(),
-	storages.GetStorageService(),
-	notifiers.GetNotifierService(),
-	taskCancelManager,
-	nodesRegistry,
-	logger.GetLogger(),
-	usecases.GetCreateBackupUsecase(),
-	getNodeID(),
-	time.Time{},
+	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,
-	backups_config.GetBackupConfigService(),
-	storages.GetStorageService(),
-	taskCancelManager,
-	nodesRegistry,
-	time.Now().UTC(),
-	logger.GetLogger(),
-	make(map[uuid.UUID]BackupToNodeRelation),
-	backuperNode,
+	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 {
@@ -69,3 +87,11 @@ func GetBackupsScheduler() *BackupsScheduler {
 func GetBackuperNode() *BackuperNode {
 	return backuperNode
 }
+
+func GetBackupNodesRegistry() *BackupNodesRegistry {
+	return backupNodesRegistry
+}
+
+func GetBackupCleaner() *BackupCleaner {
+	return backupCleaner
+}

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

@@ -1,8 +1,34 @@
 package backuping
 
-import "github.com/google/uuid"
+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

@@ -1,8 +1,18 @@
 package backuping
 
 import (
-	"databasus-backend/internal/features/notifiers"
+	"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"
 )
 
@@ -17,3 +27,168 @@ func (m *MockNotificationSender) SendNotification(
 ) {
 	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

@@ -1,4 +1,4 @@
-package task_registry
+package backuping
 
 import (
 	"context"
@@ -6,6 +6,8 @@ import (
 	"fmt"
 	"log/slog"
 	"strings"
+	"sync"
+	"sync/atomic"
 	"time"
 
 	cache_utils "databasus-backend/internal/util/cache"
@@ -15,64 +17,73 @@ import (
 )
 
 const (
-	nodeInfoKeyPrefix     = "node:"
-	nodeInfoKeySuffix     = ":info"
-	nodeActiveTasksPrefix = "node:"
-	nodeActiveTasksSuffix = ":active_tasks"
-	taskSubmitChannel     = "task:submit"
-	taskCompletionChannel = "task:completion"
+	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
 )
 
-// TaskNodesRegistry helps to sync tasks scheduler (backuping or restoring)
-// and task nodes which are used for network-intensive tasks processing
+// BackupNodesRegistry helps to sync backups scheduler and backup nodes.
 //
 // Features:
 // - Track node availability and load level
-// - Assign from scheduler to node tasks needed to be processed
-// - Notify scheduler from node about task completion
+// - Assign from scheduler to node backups needed to be processed
+// - Notify scheduler from node about backup completion
 //
 // Important things to remember:
-//   - Node can contain different tasks types so when task is assigned
-//     or node's tasks cleaned - should be performed DB check in DB
-//     that task with this ID exists for this task type at all
-//   - Nodes without heathbeat for more than 2 minutes are not included
+//   - 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 TaskNodesRegistry struct {
+type BackupNodesRegistry struct {
 	client            valkey.Client
 	logger            *slog.Logger
 	timeout           time.Duration
-	pubsubTasks       *cache_utils.PubSubManager
+	pubsubBackups     *cache_utils.PubSubManager
 	pubsubCompletions *cache_utils.PubSubManager
+
+	runOnce sync.Once
+	hasRun  atomic.Bool
 }
 
-func (r *TaskNodesRegistry) Run(ctx context.Context) {
-	if err := r.cleanupDeadNodes(); err != nil {
-		r.logger.Error("Failed to cleanup dead nodes on startup", "error", err)
-	}
+func (r *BackupNodesRegistry) Run(ctx context.Context) {
+	wasAlreadyRun := r.hasRun.Load()
 
-	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)
+	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 *TaskNodesRegistry) GetAvailableNodes() ([]TaskNode, error) {
+func (r *BackupNodesRegistry) GetAvailableNodes() ([]BackupNode, error) {
 	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
 	defer cancel()
 
@@ -104,7 +115,7 @@ func (r *TaskNodesRegistry) GetAvailableNodes() ([]TaskNode, error) {
 	}
 
 	if len(allKeys) == 0 {
-		return []TaskNode{}, nil
+		return []BackupNode{}, nil
 	}
 
 	keyDataMap, err := r.pipelineGetKeys(allKeys)
@@ -113,14 +124,15 @@ func (r *TaskNodesRegistry) GetAvailableNodes() ([]TaskNode, error) {
 	}
 
 	threshold := time.Now().UTC().Add(-deadNodeThreshold)
-	var nodes []TaskNode
+	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 TaskNode
+		var node BackupNode
 		if err := json.Unmarshal(data, &node); err != nil {
 			r.logger.Warn("Failed to unmarshal node data", "key", key, "error", err)
 			continue
@@ -141,13 +153,13 @@ func (r *TaskNodesRegistry) GetAvailableNodes() ([]TaskNode, error) {
 	return nodes, nil
 }
 
-func (r *TaskNodesRegistry) GetNodesStats() ([]TaskNodeStats, error) {
+func (r *BackupNodesRegistry) GetBackupNodesStats() ([]BackupNodeStats, error) {
 	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
 	defer cancel()
 
 	var allKeys []string
 	cursor := uint64(0)
-	pattern := nodeActiveTasksPrefix + "*" + nodeActiveTasksSuffix
+	pattern := nodeActiveBackupsPrefix + "*" + nodeActiveBackupsSuffix
 
 	for {
 		result := r.client.Do(
@@ -156,7 +168,7 @@ func (r *TaskNodesRegistry) GetNodesStats() ([]TaskNodeStats, error) {
 		)
 
 		if result.Error() != nil {
-			return nil, fmt.Errorf("failed to scan active tasks keys: %w", result.Error())
+			return nil, fmt.Errorf("failed to scan active backups keys: %w", result.Error())
 		}
 
 		scanResult, err := result.AsScanEntry()
@@ -173,18 +185,18 @@ func (r *TaskNodesRegistry) GetNodesStats() ([]TaskNodeStats, error) {
 	}
 
 	if len(allKeys) == 0 {
-		return []TaskNodeStats{}, nil
+		return []BackupNodeStats{}, nil
 	}
 
 	keyDataMap, err := r.pipelineGetKeys(allKeys)
 	if err != nil {
-		return nil, fmt.Errorf("failed to pipeline get active tasks keys: %w", err)
+		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, nodeActiveTasksPrefix, nodeActiveTasksSuffix)
+		nodeID := r.extractNodeIDFromKey(key, nodeActiveBackupsPrefix, nodeActiveBackupsSuffix)
 		nodeIDStr := nodeID.String()
 		infoKey := fmt.Sprintf("%s%s%s", nodeInfoKeyPrefix, nodeIDStr, nodeInfoKeySuffix)
 		nodeInfoKeys = append(nodeInfoKeys, infoKey)
@@ -197,14 +209,14 @@ func (r *TaskNodesRegistry) GetNodesStats() ([]TaskNodeStats, error) {
 	}
 
 	threshold := time.Now().UTC().Add(-deadNodeThreshold)
-	var stats []TaskNodeStats
+	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 TaskNode
+		var node BackupNode
 		if err := json.Unmarshal(nodeData, &node); err != nil {
 			r.logger.Warn("Failed to unmarshal node data", "key", infoKey, "error", err)
 			continue
@@ -223,13 +235,13 @@ func (r *TaskNodesRegistry) GetNodesStats() ([]TaskNodeStats, error) {
 		tasksData := keyDataMap[statsKey]
 		count, err := r.parseIntFromBytes(tasksData)
 		if err != nil {
-			r.logger.Warn("Failed to parse active tasks count", "key", statsKey, "error", err)
+			r.logger.Warn("Failed to parse active backups count", "key", statsKey, "error", err)
 			continue
 		}
 
-		stat := TaskNodeStats{
-			ID:          node.ID,
-			ActiveTasks: int(count),
+		stat := BackupNodeStats{
+			ID:            node.ID,
+			ActiveBackups: int(count),
 		}
 		stats = append(stats, stat)
 	}
@@ -237,16 +249,16 @@ func (r *TaskNodesRegistry) GetNodesStats() ([]TaskNodeStats, error) {
 	return stats, nil
 }
 
-func (r *TaskNodesRegistry) IncrementTasksInProgress(nodeID string) error {
+func (r *BackupNodesRegistry) IncrementBackupsInProgress(nodeID uuid.UUID) error {
 	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
 	defer cancel()
 
-	key := fmt.Sprintf("%s%s%s", nodeActiveTasksPrefix, nodeID, nodeActiveTasksSuffix)
+	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 tasks in progress for node %s: %w",
+			"failed to increment backups in progress for node %s: %w",
 			nodeID,
 			result.Error(),
 		)
@@ -255,16 +267,16 @@ func (r *TaskNodesRegistry) IncrementTasksInProgress(nodeID string) error {
 	return nil
 }
 
-func (r *TaskNodesRegistry) DecrementTasksInProgress(nodeID string) error {
+func (r *BackupNodesRegistry) DecrementBackupsInProgress(nodeID uuid.UUID) error {
 	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
 	defer cancel()
 
-	key := fmt.Sprintf("%s%s%s", nodeActiveTasksPrefix, nodeID, nodeActiveTasksSuffix)
+	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 tasks in progress for node %s: %w",
+			"failed to decrement backups in progress for node %s: %w",
 			nodeID,
 			result.Error(),
 		)
@@ -279,13 +291,13 @@ func (r *TaskNodesRegistry) DecrementTasksInProgress(nodeID string) error {
 		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 tasks counter went below 0, reset to 0", "nodeID", nodeID)
+		r.logger.Warn("Active backups counter went below 0, reset to 0", "nodeID", nodeID)
 	}
 
 	return nil
 }
 
-func (r *TaskNodesRegistry) HearthbeatNodeInRegistry(now time.Time, node TaskNode) error {
+func (r *BackupNodesRegistry) HearthbeatNodeInRegistry(now time.Time, backupNode BackupNode) error {
 	if now.IsZero() {
 		return fmt.Errorf("cannot register node with zero heartbeat timestamp")
 	}
@@ -293,36 +305,36 @@ func (r *TaskNodesRegistry) HearthbeatNodeInRegistry(now time.Time, node TaskNod
 	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
 	defer cancel()
 
-	node.LastHeartbeat = now
+	backupNode.LastHeartbeat = now
 
-	data, err := json.Marshal(node)
+	data, err := json.Marshal(backupNode)
 	if err != nil {
-		return fmt.Errorf("failed to marshal node: %w", err)
+		return fmt.Errorf("failed to marshal backup node: %w", err)
 	}
 
-	key := fmt.Sprintf("%s%s%s", nodeInfoKeyPrefix, node.ID.String(), nodeInfoKeySuffix)
+	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", node.ID, result.Error())
+		return fmt.Errorf("failed to register node %s: %w", backupNode.ID, result.Error())
 	}
 
 	return nil
 }
 
-func (r *TaskNodesRegistry) UnregisterNodeFromRegistry(node TaskNode) error {
+func (r *BackupNodesRegistry) UnregisterNodeFromRegistry(backupNode BackupNode) error {
 	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
 	defer cancel()
 
-	infoKey := fmt.Sprintf("%s%s%s", nodeInfoKeyPrefix, node.ID.String(), nodeInfoKeySuffix)
+	infoKey := fmt.Sprintf("%s%s%s", nodeInfoKeyPrefix, backupNode.ID.String(), nodeInfoKeySuffix)
 	counterKey := fmt.Sprintf(
 		"%s%s%s",
-		nodeActiveTasksPrefix,
-		node.ID.String(),
-		nodeActiveTasksSuffix,
+		nodeActiveBackupsPrefix,
+		backupNode.ID.String(),
+		nodeActiveBackupsSuffix,
 	)
 
 	result := r.client.Do(
@@ -331,49 +343,49 @@ func (r *TaskNodesRegistry) UnregisterNodeFromRegistry(node TaskNode) error {
 	)
 
 	if result.Error() != nil {
-		return fmt.Errorf("failed to unregister node %s: %w", node.ID, result.Error())
+		return fmt.Errorf("failed to unregister node %s: %w", backupNode.ID, result.Error())
 	}
 
-	r.logger.Info("Unregistered node from registry", "nodeID", node.ID)
+	r.logger.Info("Unregistered node from registry", "nodeID", backupNode.ID)
 	return nil
 }
 
-func (r *TaskNodesRegistry) AssignTaskToNode(
-	targetNodeID string,
-	taskID uuid.UUID,
+func (r *BackupNodesRegistry) AssignBackupToNode(
+	targetNodeID uuid.UUID,
+	backupID uuid.UUID,
 	isCallNotifier bool,
 ) error {
 	ctx := context.Background()
 
-	message := TaskSubmitMessage{
+	message := BackupSubmitMessage{
 		NodeID:         targetNodeID,
-		TaskID:         taskID.String(),
+		BackupID:       backupID,
 		IsCallNotifier: isCallNotifier,
 	}
 
 	messageJSON, err := json.Marshal(message)
 	if err != nil {
-		return fmt.Errorf("failed to marshal task submit message: %w", err)
+		return fmt.Errorf("failed to marshal backup submit message: %w", err)
 	}
 
-	err = r.pubsubTasks.Publish(ctx, taskSubmitChannel, string(messageJSON))
+	err = r.pubsubBackups.Publish(ctx, backupSubmitChannel, string(messageJSON))
 	if err != nil {
-		return fmt.Errorf("failed to publish task submit message: %w", err)
+		return fmt.Errorf("failed to publish backup submit message: %w", err)
 	}
 
 	return nil
 }
 
-func (r *TaskNodesRegistry) SubscribeNodeForTasksAssignment(
-	nodeID string,
-	handler func(taskID uuid.UUID, isCallNotifier bool),
+func (r *BackupNodesRegistry) SubscribeNodeForBackupsAssignment(
+	nodeID uuid.UUID,
+	handler func(backupID uuid.UUID, isCallNotifier bool),
 ) error {
 	ctx := context.Background()
 
 	wrappedHandler := func(message string) {
-		var msg TaskSubmitMessage
+		var msg BackupSubmitMessage
 		if err := json.Unmarshal([]byte(message), &msg); err != nil {
-			r.logger.Warn("Failed to unmarshal task submit message", "error", err)
+			r.logger.Warn("Failed to unmarshal backup submit message", "error", err)
 			return
 		}
 
@@ -381,108 +393,84 @@ func (r *TaskNodesRegistry) SubscribeNodeForTasksAssignment(
 			return
 		}
 
-		taskID, err := uuid.Parse(msg.TaskID)
-		if err != nil {
-			r.logger.Warn(
-				"Failed to parse task ID from message",
-				"taskId",
-				msg.TaskID,
-				"error",
-				err,
-			)
-			return
-		}
-
-		handler(taskID, msg.IsCallNotifier)
+		handler(msg.BackupID, msg.IsCallNotifier)
 	}
 
-	err := r.pubsubTasks.Subscribe(ctx, taskSubmitChannel, wrappedHandler)
+	err := r.pubsubBackups.Subscribe(ctx, backupSubmitChannel, wrappedHandler)
 	if err != nil {
-		return fmt.Errorf("failed to subscribe to task submit channel: %w", err)
+		return fmt.Errorf("failed to subscribe to backup submit channel: %w", err)
 	}
 
-	r.logger.Info("Subscribed to task submit channel", "nodeID", nodeID)
+	r.logger.Info("Subscribed to backup submit channel", "nodeID", nodeID)
 	return nil
 }
 
-func (r *TaskNodesRegistry) UnsubscribeNodeForTasksAssignments() error {
-	err := r.pubsubTasks.Close()
+func (r *BackupNodesRegistry) UnsubscribeNodeForBackupsAssignments() error {
+	err := r.pubsubBackups.Close()
 	if err != nil {
-		return fmt.Errorf("failed to unsubscribe from task submit channel: %w", err)
+		return fmt.Errorf("failed to unsubscribe from backup submit channel: %w", err)
 	}
 
-	r.logger.Info("Unsubscribed from task submit channel")
+	r.logger.Info("Unsubscribed from backup submit channel")
 	return nil
 }
 
-func (r *TaskNodesRegistry) PublishTaskCompletion(nodeID string, taskID uuid.UUID) error {
+func (r *BackupNodesRegistry) PublishBackupCompletion(nodeID uuid.UUID, backupID uuid.UUID) error {
 	ctx := context.Background()
 
-	message := TaskCompletionMessage{
-		NodeID: nodeID,
-		TaskID: taskID.String(),
+	message := BackupCompletionMessage{
+		NodeID:   nodeID,
+		BackupID: backupID,
 	}
 
 	messageJSON, err := json.Marshal(message)
 	if err != nil {
-		return fmt.Errorf("failed to marshal task completion message: %w", err)
+		return fmt.Errorf("failed to marshal backup completion message: %w", err)
 	}
 
-	err = r.pubsubCompletions.Publish(ctx, taskCompletionChannel, string(messageJSON))
+	err = r.pubsubCompletions.Publish(ctx, backupCompletionChannel, string(messageJSON))
 	if err != nil {
-		return fmt.Errorf("failed to publish task completion message: %w", err)
+		return fmt.Errorf("failed to publish backup completion message: %w", err)
 	}
 
 	return nil
 }
 
-func (r *TaskNodesRegistry) SubscribeForTasksCompletions(
-	handler func(nodeID string, taskID uuid.UUID),
+func (r *BackupNodesRegistry) SubscribeForBackupsCompletions(
+	handler func(nodeID uuid.UUID, backupID uuid.UUID),
 ) error {
 	ctx := context.Background()
 
 	wrappedHandler := func(message string) {
-		var msg TaskCompletionMessage
+		var msg BackupCompletionMessage
 		if err := json.Unmarshal([]byte(message), &msg); err != nil {
-			r.logger.Warn("Failed to unmarshal task completion message", "error", err)
+			r.logger.Warn("Failed to unmarshal backup completion message", "error", err)
 			return
 		}
 
-		taskID, err := uuid.Parse(msg.TaskID)
-		if err != nil {
-			r.logger.Warn(
-				"Failed to parse task ID from completion message",
-				"taskId",
-				msg.TaskID,
-				"error",
-				err,
-			)
-			return
-		}
-
-		handler(msg.NodeID, taskID)
+		handler(msg.NodeID, msg.BackupID)
 	}
 
-	err := r.pubsubCompletions.Subscribe(ctx, taskCompletionChannel, wrappedHandler)
+	err := r.pubsubCompletions.Subscribe(ctx, backupCompletionChannel, wrappedHandler)
 	if err != nil {
-		return fmt.Errorf("failed to subscribe to task completion channel: %w", err)
+		return fmt.Errorf("failed to subscribe to backup completion channel: %w", err)
 	}
 
-	r.logger.Info("Subscribed to task completion channel")
+	r.logger.Info("Subscribed to backup completion channel")
 	return nil
 }
 
-func (r *TaskNodesRegistry) UnsubscribeForTasksCompletions() error {
+func (r *BackupNodesRegistry) UnsubscribeForBackupsCompletions() error {
 	err := r.pubsubCompletions.Close()
 	if err != nil {
-		return fmt.Errorf("failed to unsubscribe from task completion channel: %w", err)
+		return fmt.Errorf("failed to unsubscribe from backup completion channel: %w", err)
 	}
 
-	r.logger.Info("Unsubscribed from task completion channel")
+	r.logger.Info("Unsubscribed from backup completion channel")
 	return nil
 }
 
-func (r *TaskNodesRegistry) extractNodeIDFromKey(key, prefix, suffix string) uuid.UUID {
+func (r *BackupNodesRegistry) extractNodeIDFromKey(key, prefix, suffix string) uuid.UUID {
 	nodeIDStr := strings.TrimPrefix(key, prefix)
 	nodeIDStr = strings.TrimSuffix(nodeIDStr, suffix)
 
@@ -495,7 +483,7 @@ func (r *TaskNodesRegistry) extractNodeIDFromKey(key, prefix, suffix string) uui
 	return nodeID
 }
 
-func (r *TaskNodesRegistry) pipelineGetKeys(keys []string) (map[string][]byte, error) {
+func (r *BackupNodesRegistry) pipelineGetKeys(keys []string) (map[string][]byte, error) {
 	if len(keys) == 0 {
 		return make(map[string][]byte), nil
 	}
@@ -529,7 +517,7 @@ func (r *TaskNodesRegistry) pipelineGetKeys(keys []string) (map[string][]byte, e
 	return keyDataMap, nil
 }
 
-func (r *TaskNodesRegistry) parseIntFromBytes(data []byte) (int64, error) {
+func (r *BackupNodesRegistry) parseIntFromBytes(data []byte) (int64, error) {
 	str := string(data)
 	var count int64
 	_, err := fmt.Sscanf(str, "%d", &count)
@@ -539,7 +527,7 @@ func (r *TaskNodesRegistry) parseIntFromBytes(data []byte) (int64, error) {
 	return count, nil
 }
 
-func (r *TaskNodesRegistry) cleanupDeadNodes() error {
+func (r *BackupNodesRegistry) cleanupDeadNodes() error {
 	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
 	defer cancel()
 
@@ -583,13 +571,12 @@ func (r *TaskNodesRegistry) cleanupDeadNodes() error {
 	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 TaskNode
+		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
@@ -603,7 +590,12 @@ func (r *TaskNodesRegistry) cleanupDeadNodes() error {
 		if node.LastHeartbeat.Before(threshold) {
 			nodeID := node.ID.String()
 			infoKey := fmt.Sprintf("%s%s%s", nodeInfoKeyPrefix, nodeID, nodeInfoKeySuffix)
-			statsKey := fmt.Sprintf("%s%s%s", nodeActiveTasksPrefix, nodeID, nodeActiveTasksSuffix)
+			statsKey := fmt.Sprintf(
+				"%s%s%s",
+				nodeActiveBackupsPrefix,
+				nodeID,
+				nodeActiveBackupsSuffix,
+			)
 
 			deadNodeKeys = append(deadNodeKeys, infoKey, statsKey)
 			r.logger.Info(

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

@@ -2,19 +2,18 @@ package backuping
 
 import (
 	"context"
-	"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/storages"
-	task_cancellation "databasus-backend/internal/features/tasks/cancellation"
-	task_registry "databasus-backend/internal/features/tasks/registry"
-	"databasus-backend/internal/util/encryption"
-	"databasus-backend/internal/util/period"
 	"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 (
@@ -26,66 +25,76 @@ const (
 type BackupsScheduler struct {
 	backupRepository    *backups_core.BackupRepository
 	backupConfigService *backups_config.BackupConfigService
-	storageService      *storages.StorageService
 	taskCancelManager   *task_cancellation.TaskCancelManager
-	tasksRegistry       *task_registry.TaskNodesRegistry
+	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) {
-	s.lastBackupTime = time.Now().UTC()
+	wasAlreadyRun := s.hasRun.Load()
 
-	if config.GetEnv().IsManyNodesMode {
-		// wait other nodes to start
-		time.Sleep(schedulerStartupDelay)
-	}
+	s.runOnce.Do(func() {
+		s.hasRun.Store(true)
 
-	if err := s.failBackupsInProgress(); err != nil {
-		s.logger.Error("Failed to fail backups in progress", "error", err)
-		panic(err)
-	}
+		s.lastBackupTime = time.Now().UTC()
 
-	if err := s.tasksRegistry.SubscribeForTasksCompletions(s.onBackupCompleted); err != nil {
-		s.logger.Error("Failed to subscribe to backup completions", "error", err)
-		panic(err)
-	}
-	defer func() {
-		if err := s.tasksRegistry.UnsubscribeForTasksCompletions(); err != nil {
-			s.logger.Error("Failed to unsubscribe from backup completions", "error", err)
+		if config.GetEnv().IsManyNodesMode {
+			// wait other nodes to start
+			time.Sleep(schedulerStartupDelay)
 		}
-	}()
 
-	if ctx.Err() != nil {
-		return
-	}
+		if err := s.failBackupsInProgress(); err != nil {
+			s.logger.Error("Failed to fail backups in progress", "error", err)
+			panic(err)
+		}
 
-	ticker := time.NewTicker(schedulerTickerInterval)
-	defer ticker.Stop()
+		err := s.backupNodesRegistry.SubscribeForBackupsCompletions(s.onBackupCompleted)
+		if err != nil {
+			s.logger.Error("Failed to subscribe to backup completions", "error", err)
+			panic(err)
+		}
 
-	for {
-		select {
-		case <-ctx.Done():
+		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
-		case <-ticker.C:
-			if err := s.cleanOldBackups(); err != nil {
-				s.logger.Error("Failed to clean old backups", "error", err)
-			}
-
-			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()
 		}
+
+		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))
 	}
 }
 
@@ -94,47 +103,14 @@ func (s *BackupsScheduler) IsSchedulerRunning() bool {
 	return s.lastBackupTime.After(time.Now().UTC().Add(-schedulerHealthcheckThreshold))
 }
 
-func (s *BackupsScheduler) failBackupsInProgress() error {
-	backupsInProgress, err := s.backupRepository.FindByStatus(backups_core.BackupStatusInProgress)
+func (s *BackupsScheduler) IsBackupNodesAvailable() bool {
+	nodes, err := s.backupNodesRegistry.GetAvailableNodes()
 	if err != nil {
-		return err
+		s.logger.Error("Failed to get available nodes for health check", "error", err)
+		return false
 	}
 
-	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
+	return len(nodes) > 0
 }
 
 func (s *BackupsScheduler) StartBackup(databaseID uuid.UUID, isCallNotifier bool) {
@@ -149,6 +125,33 @@ func (s *BackupsScheduler) StartBackup(databaseID uuid.UUID, isCallNotifier bool
 		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(
@@ -161,6 +164,7 @@ func (s *BackupsScheduler) StartBackup(databaseID uuid.UUID, isCallNotifier bool
 		return
 	}
 
+	fmt.Println("make backup")
 	backup := &backups_core.Backup{
 		DatabaseID:   backupConfig.DatabaseID,
 		StorageID:    *backupConfig.StorageID,
@@ -180,7 +184,7 @@ func (s *BackupsScheduler) StartBackup(databaseID uuid.UUID, isCallNotifier bool
 		return
 	}
 
-	if err := s.tasksRegistry.IncrementTasksInProgress(leastBusyNodeID.String()); err != nil {
+	if err := s.backupNodesRegistry.IncrementBackupsInProgress(*leastBusyNodeID); err != nil {
 		s.logger.Error(
 			"Failed to increment backups in progress",
 			"nodeId",
@@ -193,7 +197,7 @@ func (s *BackupsScheduler) StartBackup(databaseID uuid.UUID, isCallNotifier bool
 		return
 	}
 
-	if err := s.tasksRegistry.AssignTaskToNode(leastBusyNodeID.String(), backup.ID, isCallNotifier); err != nil {
+	if err := s.backupNodesRegistry.AssignBackupToNode(*leastBusyNodeID, backup.ID, isCallNotifier); err != nil {
 		s.logger.Error(
 			"Failed to submit backup",
 			"nodeId",
@@ -203,7 +207,7 @@ func (s *BackupsScheduler) StartBackup(databaseID uuid.UUID, isCallNotifier bool
 			"error",
 			err,
 		)
-		if decrementErr := s.tasksRegistry.DecrementTasksInProgress(leastBusyNodeID.String()); decrementErr != nil {
+		if decrementErr := s.backupNodesRegistry.DecrementBackupsInProgress(*leastBusyNodeID); decrementErr != nil {
 			s.logger.Error(
 				"Failed to decrement backups in progress after submit failure",
 				"nodeId",
@@ -249,6 +253,10 @@ func (s *BackupsScheduler) GetRemainedBackupTryCount(lastBackup *backups_core.Ba
 		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)
@@ -281,74 +289,6 @@ func (s *BackupsScheduler) GetRemainedBackupTryCount(lastBackup *backups_core.Ba
 	return maxFailedTriesCount - len(lastFailedBackups)
 }
 
-func (s *BackupsScheduler) 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 *BackupsScheduler) runPendingBackups() error {
 	enabledBackupConfigs, err := s.backupConfigService.GetBackupConfigsWithEnabledBackups()
 	if err != nil {
@@ -397,8 +337,51 @@ func (s *BackupsScheduler) runPendingBackups() error {
 	return nil
 }
 
+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) calculateLeastBusyNode() (*uuid.UUID, error) {
-	nodes, err := s.tasksRegistry.GetAvailableNodes()
+	nodes, err := s.backupNodesRegistry.GetAvailableNodes()
 	if err != nil {
 		return nil, fmt.Errorf("failed to get available nodes: %w", err)
 	}
@@ -407,17 +390,17 @@ func (s *BackupsScheduler) calculateLeastBusyNode() (*uuid.UUID, error) {
 		return nil, fmt.Errorf("no nodes available")
 	}
 
-	stats, err := s.tasksRegistry.GetNodesStats()
+	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.ActiveTasks
+		statsMap[stat.ID] = stat.ActiveBackups
 	}
 
-	var bestNode *task_registry.TaskNode
+	var bestNode *BackupNode
 	var bestScore float64 = -1
 
 	for i := range nodes {
@@ -445,21 +428,9 @@ func (s *BackupsScheduler) calculateLeastBusyNode() (*uuid.UUID, error) {
 	return &bestNode.ID, nil
 }
 
-func (s *BackupsScheduler) onBackupCompleted(nodeIDStr string, backupID uuid.UUID) {
-	nodeID, err := uuid.Parse(nodeIDStr)
-	if err != nil {
-		s.logger.Error(
-			"Failed to parse node ID from completion message",
-			"nodeId",
-			nodeIDStr,
-			"error",
-			err,
-		)
-		return
-	}
-
+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)
+	_, err := s.backupRepository.FindByID(backupID)
 	if err != nil {
 		// Not a backup task, ignore it
 		return
@@ -505,7 +476,7 @@ func (s *BackupsScheduler) onBackupCompleted(nodeIDStr string, backupID uuid.UUI
 		s.backupToNodeRelations[nodeID] = relation
 	}
 
-	if err := s.tasksRegistry.DecrementTasksInProgress(nodeIDStr); err != nil {
+	if err := s.backupNodesRegistry.DecrementBackupsInProgress(nodeID); err != nil {
 		s.logger.Error(
 			"Failed to decrement backups in progress",
 			"nodeId",
@@ -519,7 +490,7 @@ func (s *BackupsScheduler) onBackupCompleted(nodeIDStr string, backupID uuid.UUI
 }
 
 func (s *BackupsScheduler) checkDeadNodesAndFailBackups() error {
-	nodes, err := s.tasksRegistry.GetAvailableNodes()
+	nodes, err := s.backupNodesRegistry.GetAvailableNodes()
 	if err != nil {
 		return fmt.Errorf("failed to get available nodes: %w", err)
 	}
@@ -575,7 +546,7 @@ func (s *BackupsScheduler) checkDeadNodesAndFailBackups() error {
 				continue
 			}
 
-			if err := s.tasksRegistry.DecrementTasksInProgress(nodeID.String()); err != nil {
+			if err := s.backupNodesRegistry.DecrementBackupsInProgress(nodeID); err != nil {
 				s.logger.Error(
 					"Failed to decrement backups in progress for dead node",
 					"nodeId",

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

@@ -7,7 +7,6 @@ import (
 	"databasus-backend/internal/features/intervals"
 	"databasus-backend/internal/features/notifiers"
 	"databasus-backend/internal/features/storages"
-	task_registry "databasus-backend/internal/features/tasks/registry"
 	users_enums "databasus-backend/internal/features/users/enums"
 	users_testing "databasus-backend/internal/features/users/testing"
 	workspaces_testing "databasus-backend/internal/features/workspaces/testing"
@@ -466,7 +465,7 @@ func Test_CheckDeadNodesAndFailBackups_WhenNodeDies_FailsBackupAndCleansUpRegist
 
 		// Clean up mock node
 		if mockNodeID != uuid.Nil {
-			nodesRegistry.UnregisterNodeFromRegistry(task_registry.TaskNode{ID: mockNodeID})
+			backupNodesRegistry.UnregisterNodeFromRegistry(BackupNode{ID: mockNodeID})
 		}
 		cache_utils.ClearAllCache()
 	}()
@@ -502,12 +501,12 @@ func Test_CheckDeadNodesAndFailBackups_WhenNodeDies_FailsBackupAndCleansUpRegist
 	assert.Equal(t, backups_core.BackupStatusInProgress, backups[0].Status)
 
 	// Verify Valkey counter was incremented when backup was assigned
-	stats, err := nodesRegistry.GetNodesStats()
+	stats, err := backupNodesRegistry.GetBackupNodesStats()
 	assert.NoError(t, err)
 	foundStat := false
 	for _, stat := range stats {
 		if stat.ID == mockNodeID {
-			assert.Equal(t, 1, stat.ActiveTasks)
+			assert.Equal(t, 1, stat.ActiveBackups)
 			foundStat = true
 			break
 		}
@@ -532,11 +531,11 @@ func Test_CheckDeadNodesAndFailBackups_WhenNodeDies_FailsBackupAndCleansUpRegist
 	assert.Contains(t, *backups[0].FailMessage, "node unavailability")
 
 	// Verify Valkey counter was decremented after backup failed
-	stats, err = nodesRegistry.GetNodesStats()
+	stats, err = backupNodesRegistry.GetBackupNodesStats()
 	assert.NoError(t, err)
 	for _, stat := range stats {
 		if stat.ID == mockNodeID {
-			assert.Equal(t, 0, stat.ActiveTasks)
+			assert.Equal(t, 0, stat.ActiveBackups)
 		}
 	}
 
@@ -569,7 +568,7 @@ func Test_OnBackupCompleted_WhenTaskIsNotBackup_SkipsProcessing(t *testing.T) {
 
 		// Clean up mock node
 		if mockNodeID != uuid.Nil {
-			nodesRegistry.UnregisterNodeFromRegistry(task_registry.TaskNode{ID: mockNodeID})
+			backupNodesRegistry.UnregisterNodeFromRegistry(BackupNode{ID: mockNodeID})
 		}
 		cache_utils.ClearAllCache()
 	}()
@@ -605,12 +604,12 @@ func Test_OnBackupCompleted_WhenTaskIsNotBackup_SkipsProcessing(t *testing.T) {
 	assert.Equal(t, backups_core.BackupStatusInProgress, backups[0].Status)
 
 	// Get initial state of the registry
-	initialStats, err := nodesRegistry.GetNodesStats()
+	initialStats, err := backupNodesRegistry.GetBackupNodesStats()
 	assert.NoError(t, err)
 	var initialActiveTasks int
 	for _, stat := range initialStats {
 		if stat.ID == mockNodeID {
-			initialActiveTasks = stat.ActiveTasks
+			initialActiveTasks = stat.ActiveBackups
 			break
 		}
 	}
@@ -618,16 +617,16 @@ func Test_OnBackupCompleted_WhenTaskIsNotBackup_SkipsProcessing(t *testing.T) {
 
 	// Call onBackupCompleted with a random UUID (not a backup ID)
 	nonBackupTaskID := uuid.New()
-	GetBackupsScheduler().onBackupCompleted(mockNodeID.String(), nonBackupTaskID)
+	GetBackupsScheduler().onBackupCompleted(mockNodeID, nonBackupTaskID)
 
 	time.Sleep(100 * time.Millisecond)
 
 	// Verify: Active tasks counter should remain the same (not decremented)
-	stats, err := nodesRegistry.GetNodesStats()
+	stats, err := backupNodesRegistry.GetBackupNodesStats()
 	assert.NoError(t, err)
 	for _, stat := range stats {
 		if stat.ID == mockNodeID {
-			assert.Equal(t, initialActiveTasks, stat.ActiveTasks,
+			assert.Equal(t, initialActiveTasks, stat.ActiveBackups,
 				"Active tasks should not change for non-backup task")
 		}
 	}
@@ -658,9 +657,9 @@ func Test_CalculateLeastBusyNode_SelectsNodeWithBestScore(t *testing.T) {
 
 		defer func() {
 			// Clean up all mock nodes
-			nodesRegistry.UnregisterNodeFromRegistry(task_registry.TaskNode{ID: node1ID})
-			nodesRegistry.UnregisterNodeFromRegistry(task_registry.TaskNode{ID: node2ID})
-			nodesRegistry.UnregisterNodeFromRegistry(task_registry.TaskNode{ID: node3ID})
+			backupNodesRegistry.UnregisterNodeFromRegistry(BackupNode{ID: node1ID})
+			backupNodesRegistry.UnregisterNodeFromRegistry(BackupNode{ID: node2ID})
+			backupNodesRegistry.UnregisterNodeFromRegistry(BackupNode{ID: node3ID})
 			cache_utils.ClearAllCache()
 		}()
 
@@ -672,17 +671,17 @@ func Test_CalculateLeastBusyNode_SelectsNodeWithBestScore(t *testing.T) {
 		assert.NoError(t, err)
 
 		for range 5 {
-			err = nodesRegistry.IncrementTasksInProgress(node1ID.String())
+			err = backupNodesRegistry.IncrementBackupsInProgress(node1ID)
 			assert.NoError(t, err)
 		}
 
 		for range 2 {
-			err = nodesRegistry.IncrementTasksInProgress(node2ID.String())
+			err = backupNodesRegistry.IncrementBackupsInProgress(node2ID)
 			assert.NoError(t, err)
 		}
 
 		for range 8 {
-			err = nodesRegistry.IncrementTasksInProgress(node3ID.String())
+			err = backupNodesRegistry.IncrementBackupsInProgress(node3ID)
 			assert.NoError(t, err)
 		}
 
@@ -701,8 +700,8 @@ func Test_CalculateLeastBusyNode_SelectsNodeWithBestScore(t *testing.T) {
 
 		defer func() {
 			// Clean up all mock nodes
-			nodesRegistry.UnregisterNodeFromRegistry(task_registry.TaskNode{ID: node100MBsID})
-			nodesRegistry.UnregisterNodeFromRegistry(task_registry.TaskNode{ID: node50MBsID})
+			backupNodesRegistry.UnregisterNodeFromRegistry(BackupNode{ID: node100MBsID})
+			backupNodesRegistry.UnregisterNodeFromRegistry(BackupNode{ID: node50MBsID})
 			cache_utils.ClearAllCache()
 		}()
 
@@ -712,11 +711,11 @@ func Test_CalculateLeastBusyNode_SelectsNodeWithBestScore(t *testing.T) {
 		assert.NoError(t, err)
 
 		for range 10 {
-			err = nodesRegistry.IncrementTasksInProgress(node100MBsID.String())
+			err = backupNodesRegistry.IncrementBackupsInProgress(node100MBsID)
 			assert.NoError(t, err)
 		}
 
-		err = nodesRegistry.IncrementTasksInProgress(node50MBsID.String())
+		err = backupNodesRegistry.IncrementBackupsInProgress(node50MBsID)
 		assert.NoError(t, err)
 
 		leastBusyNodeID, err := GetBackupsScheduler().calculateLeastBusyNode()
@@ -836,7 +835,8 @@ func Test_StartBackup_WhenBackupCompletes_DecrementsActiveTaskCount(t *testing.T
 	cache_utils.ClearAllCache()
 
 	// Start scheduler so it can handle task completions
-	schedulerCancel := StartSchedulerForTest(t)
+	scheduler := CreateTestScheduler()
+	schedulerCancel := StartSchedulerForTest(t, scheduler)
 	defer schedulerCancel()
 
 	backuperNode := CreateTestBackuperNode()
@@ -880,19 +880,19 @@ func Test_StartBackup_WhenBackupCompletes_DecrementsActiveTaskCount(t *testing.T
 	assert.NoError(t, err)
 
 	// Get initial active task count
-	stats, err := nodesRegistry.GetNodesStats()
+	stats, err := backupNodesRegistry.GetBackupNodesStats()
 	assert.NoError(t, err)
 	var initialActiveTasks int
 	for _, stat := range stats {
 		if stat.ID == backuperNode.nodeID {
-			initialActiveTasks = stat.ActiveTasks
+			initialActiveTasks = stat.ActiveBackups
 			break
 		}
 	}
 	t.Logf("Initial active tasks: %d", initialActiveTasks)
 
 	// Start backup
-	GetBackupsScheduler().StartBackup(database.ID, false)
+	scheduler.StartBackup(database.ID, false)
 
 	// Wait for backup to complete
 	WaitForBackupCompletion(t, database.ID, 0, 10*time.Second)
@@ -913,12 +913,12 @@ func Test_StartBackup_WhenBackupCompletes_DecrementsActiveTaskCount(t *testing.T
 	assert.True(t, decreased, "Active task count should have decreased after backup completion")
 
 	// Verify final active task count equals initial count
-	finalStats, err := nodesRegistry.GetNodesStats()
+	finalStats, err := backupNodesRegistry.GetBackupNodesStats()
 	assert.NoError(t, err)
 	for _, stat := range finalStats {
 		if stat.ID == backuperNode.nodeID {
-			t.Logf("Final active tasks: %d", stat.ActiveTasks)
-			assert.Equal(t, initialActiveTasks, stat.ActiveTasks,
+			t.Logf("Final active tasks: %d", stat.ActiveBackups)
+			assert.Equal(t, initialActiveTasks, stat.ActiveBackups,
 				"Active task count should return to initial value after backup completion")
 			break
 		}
@@ -931,7 +931,8 @@ func Test_StartBackup_WhenBackupFails_DecrementsActiveTaskCount(t *testing.T) {
 	cache_utils.ClearAllCache()
 
 	// Start scheduler so it can handle task completions
-	schedulerCancel := StartSchedulerForTest(t)
+	scheduler := CreateTestScheduler()
+	schedulerCancel := StartSchedulerForTest(t, scheduler)
 	defer schedulerCancel()
 
 	backuperNode := CreateTestBackuperNode()
@@ -982,19 +983,19 @@ func Test_StartBackup_WhenBackupFails_DecrementsActiveTaskCount(t *testing.T) {
 	assert.NoError(t, err)
 
 	// Get initial active task count
-	stats, err := nodesRegistry.GetNodesStats()
+	stats, err := backupNodesRegistry.GetBackupNodesStats()
 	assert.NoError(t, err)
 	var initialActiveTasks int
 	for _, stat := range stats {
 		if stat.ID == backuperNode.nodeID {
-			initialActiveTasks = stat.ActiveTasks
+			initialActiveTasks = stat.ActiveBackups
 			break
 		}
 	}
 	t.Logf("Initial active tasks: %d", initialActiveTasks)
 
 	// Start backup
-	GetBackupsScheduler().StartBackup(database.ID, false)
+	scheduler.StartBackup(database.ID, false)
 
 	// Wait for backup to fail
 	WaitForBackupCompletion(t, database.ID, 0, 10*time.Second)
@@ -1019,12 +1020,12 @@ func Test_StartBackup_WhenBackupFails_DecrementsActiveTaskCount(t *testing.T) {
 	assert.True(t, decreased, "Active task count should have decreased after backup failure")
 
 	// Verify final active task count equals initial count
-	finalStats, err := nodesRegistry.GetNodesStats()
+	finalStats, err := backupNodesRegistry.GetBackupNodesStats()
 	assert.NoError(t, err)
 	for _, stat := range finalStats {
 		if stat.ID == backuperNode.nodeID {
-			t.Logf("Final active tasks: %d", stat.ActiveTasks)
-			assert.Equal(t, initialActiveTasks, stat.ActiveTasks,
+			t.Logf("Final active tasks: %d", stat.ActiveBackups)
+			assert.Equal(t, initialActiveTasks, stat.ActiveBackups,
 				"Active task count should return to initial value after backup failure")
 			break
 		}
@@ -1032,3 +1033,289 @@ func Test_StartBackup_WhenBackupFails_DecrementsActiveTaskCount(t *testing.T) {
 
 	time.Sleep(200 * time.Millisecond)
 }
+
+func Test_StartBackup_WhenBackupAlreadyInProgress_SkipsNewBackup(t *testing.T) {
+	cache_utils.ClearAllCache()
+	backuperNode := CreateTestBackuperNode()
+	cancel := StartBackuperNodeForTest(t, backuperNode)
+	defer StopBackuperNodeForTest(t, cancel, backuperNode)
+
+	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)
+		storages.RemoveTestStorage(storage.ID)
+		notifiers.RemoveTestNotifier(notifier)
+		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 = true
+	backupConfig.StorePeriod = period.PeriodWeek
+	backupConfig.Storage = storage
+	backupConfig.StorageID = &storage.ID
+
+	_, err = backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig)
+	assert.NoError(t, err)
+
+	// Create an in-progress backup manually
+	inProgressBackup := &backups_core.Backup{
+		DatabaseID:   database.ID,
+		StorageID:    storage.ID,
+		Status:       backups_core.BackupStatusInProgress,
+		BackupSizeMb: 0,
+		CreatedAt:    time.Now().UTC(),
+	}
+	err = backupRepository.Save(inProgressBackup)
+	assert.NoError(t, err)
+
+	// Try to start a new backup - should be skipped
+	GetBackupsScheduler().StartBackup(database.ID, false)
+
+	time.Sleep(200 * time.Millisecond)
+
+	// Verify only 1 backup exists (the original in-progress one)
+	backups, err := backupRepository.FindByDatabaseID(database.ID)
+	assert.NoError(t, err)
+	assert.Len(t, backups, 1)
+	assert.Equal(t, backups_core.BackupStatusInProgress, backups[0].Status)
+	assert.Equal(t, inProgressBackup.ID, backups[0].ID)
+
+	time.Sleep(200 * time.Millisecond)
+}
+
+func Test_RunPendingBackups_WhenLastBackupFailedWithIsSkipRetry_SkipsBackupEvenWithRetriesEnabled(
+	t *testing.T,
+) {
+	cache_utils.ClearAllCache()
+	backuperNode := CreateTestBackuperNode()
+	cancel := StartBackuperNodeForTest(t, backuperNode)
+	defer StopBackuperNodeForTest(t, cancel, backuperNode)
+
+	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)
+		storages.RemoveTestStorage(storage.ID)
+		notifiers.RemoveTestNotifier(notifier)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+	}()
+
+	// Enable backups with retries enabled and high retry count
+	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 = 5
+
+	_, err = backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig)
+	assert.NoError(t, err)
+
+	// Create a failed backup with IsSkipRetry set to true
+	failMessage := "backup failed due to size limit exceeded"
+	backupRepository.Save(&backups_core.Backup{
+		DatabaseID: database.ID,
+		StorageID:  storage.ID,
+
+		Status:      backups_core.BackupStatusFailed,
+		FailMessage: &failMessage,
+		IsSkipRetry: true,
+
+		CreatedAt: time.Now().UTC().Add(-1 * time.Hour),
+	})
+
+	// Verify GetRemainedBackupTryCount returns 0 even though retries are enabled
+	lastBackup, err := backupRepository.FindLastByDatabaseID(database.ID)
+	assert.NoError(t, err)
+	assert.NotNil(t, lastBackup)
+
+	remainedTries := GetBackupsScheduler().GetRemainedBackupTryCount(lastBackup)
+	assert.Equal(t, 0, remainedTries, "Should return 0 tries when IsSkipRetry is true")
+
+	// Run the scheduler
+	GetBackupsScheduler().runPendingBackups()
+
+	time.Sleep(100 * time.Millisecond)
+
+	// Verify no new backup was created (still only 1 backup exists)
+	backups, err := backupRepository.FindByDatabaseID(database.ID)
+	assert.NoError(t, err)
+	assert.Len(t, backups, 1, "No retry should be attempted when IsSkipRetry is true")
+
+	time.Sleep(200 * time.Millisecond)
+}
+
+func Test_StartBackup_When2BackupsStartedForDifferentDatabases_BothUseCasesAreCalled(t *testing.T) {
+	cache_utils.ClearAllCache()
+
+	// Create mock tracking use case
+	mockUseCase := NewMockTrackingBackupUsecase()
+
+	// Create BackuperNode with mock use case
+	backuperNode := CreateTestBackuperNodeWithUseCase(mockUseCase)
+	cancel := StartBackuperNodeForTest(t, backuperNode)
+	defer StopBackuperNodeForTest(t, cancel, backuperNode)
+
+	// Create scheduler
+	scheduler := CreateTestScheduler()
+	schedulerCancel := StartSchedulerForTest(t, scheduler)
+	defer schedulerCancel()
+
+	// Setup test 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)
+
+	// Create 2 separate databases
+	database1 := databases.CreateTestDatabase(workspace.ID, storage, notifier)
+	database2 := databases.CreateTestDatabase(workspace.ID, storage, notifier)
+
+	defer func() {
+		// Cleanup backups for database1
+		backups1, _ := backupRepository.FindByDatabaseID(database1.ID)
+		for _, backup := range backups1 {
+			backupRepository.DeleteByID(backup.ID)
+		}
+
+		// Cleanup backups for database2
+		backups2, _ := backupRepository.FindByDatabaseID(database2.ID)
+		for _, backup := range backups2 {
+			backupRepository.DeleteByID(backup.ID)
+		}
+
+		databases.RemoveTestDatabase(database1)
+		databases.RemoveTestDatabase(database2)
+		time.Sleep(50 * time.Millisecond)
+		storages.RemoveTestStorage(storage.ID)
+		notifiers.RemoveTestNotifier(notifier)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+	}()
+
+	// Enable backups for database1
+	backupConfig1, err := backups_config.GetBackupConfigService().
+		GetBackupConfigByDbId(database1.ID)
+	assert.NoError(t, err)
+
+	timeOfDay := "04:00"
+	backupConfig1.BackupInterval = &intervals.Interval{
+		Interval:  intervals.IntervalDaily,
+		TimeOfDay: &timeOfDay,
+	}
+	backupConfig1.IsBackupsEnabled = true
+	backupConfig1.StorePeriod = period.PeriodWeek
+	backupConfig1.Storage = storage
+	backupConfig1.StorageID = &storage.ID
+
+	_, err = backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig1)
+	assert.NoError(t, err)
+
+	// Enable backups for database2
+	backupConfig2, err := backups_config.GetBackupConfigService().
+		GetBackupConfigByDbId(database2.ID)
+	assert.NoError(t, err)
+
+	backupConfig2.BackupInterval = &intervals.Interval{
+		Interval:  intervals.IntervalDaily,
+		TimeOfDay: &timeOfDay,
+	}
+	backupConfig2.IsBackupsEnabled = true
+	backupConfig2.StorePeriod = period.PeriodWeek
+	backupConfig2.Storage = storage
+	backupConfig2.StorageID = &storage.ID
+
+	_, err = backups_config.GetBackupConfigService().SaveBackupConfig(backupConfig2)
+	assert.NoError(t, err)
+
+	// Start 2 backups simultaneously
+	t.Log("Starting backup for database1")
+	scheduler.StartBackup(database1.ID, false)
+
+	t.Log("Starting backup for database2")
+	scheduler.StartBackup(database2.ID, false)
+
+	// Wait up to 10 seconds for both backups to complete
+	t.Log("Waiting for both backups to complete...")
+
+	success := assert.Eventually(t, func() bool {
+		callCount := mockUseCase.GetCallCount()
+		t.Logf("Current call count: %d/2", callCount)
+		return callCount == 2
+	}, 10*time.Second, 200*time.Millisecond, "Both use cases should be called within 10 seconds")
+
+	if !success {
+		t.Logf("Test failed: Only %d out of 2 use cases were called", mockUseCase.GetCallCount())
+	}
+
+	// Verify both backup IDs were received
+	calledBackupIDs := mockUseCase.GetCalledBackupIDs()
+	t.Logf("Called backup IDs: %v", calledBackupIDs)
+	assert.Len(t, calledBackupIDs, 2, "Both backup IDs should be tracked")
+
+	// Verify both backups exist in repository and are completed
+	backups1, err := backupRepository.FindByDatabaseID(database1.ID)
+	assert.NoError(t, err)
+	assert.Len(t, backups1, 1, "Database1 should have 1 backup")
+	if len(backups1) > 0 {
+		t.Logf("Database1 backup status: %s", backups1[0].Status)
+	}
+
+	backups2, err := backupRepository.FindByDatabaseID(database2.ID)
+	assert.NoError(t, err)
+	assert.Len(t, backups2, 1, "Database2 should have 1 backup")
+	if len(backups2) > 0 {
+		t.Logf("Database2 backup status: %s", backups2[0].Status)
+	}
+
+	// Verify both backups completed successfully
+	if len(backups1) > 0 {
+		assert.Equal(t, backups_core.BackupStatusCompleted, backups1[0].Status,
+			"Database1 backup should be completed")
+	}
+
+	if len(backups2) > 0 {
+		assert.Equal(t, backups_core.BackupStatusCompleted, backups2[0].Status,
+			"Database2 backup should be completed")
+	}
+
+	time.Sleep(200 * time.Millisecond)
+}

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

@@ -3,6 +3,8 @@ package backuping
 import (
 	"context"
 	"fmt"
+	"sync"
+	"sync/atomic"
 	"testing"
 	"time"
 
@@ -12,7 +14,6 @@ import (
 	"databasus-backend/internal/features/databases"
 	"databasus-backend/internal/features/notifiers"
 	"databasus-backend/internal/features/storages"
-	task_registry "databasus-backend/internal/features/tasks/registry"
 	workspaces_controllers "databasus-backend/internal/features/workspaces/controllers"
 	workspaces_services "databasus-backend/internal/features/workspaces/services"
 	workspaces_testing "databasus-backend/internal/features/workspaces/testing"
@@ -36,19 +37,56 @@ func CreateTestRouter() *gin.Engine {
 
 func CreateTestBackuperNode() *BackuperNode {
 	return &BackuperNode{
-		databases.GetDatabaseService(),
-		encryption.GetFieldEncryptor(),
-		workspaces_services.GetWorkspaceService(),
-		backupRepository,
-		backups_config.GetBackupConfigService(),
-		storages.GetStorageService(),
-		notifiers.GetNotifierService(),
-		taskCancelManager,
-		nodesRegistry,
-		logger.GetLogger(),
-		usecases.GetCreateBackupUsecase(),
-		uuid.New(),
-		time.Time{},
+		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{},
 	}
 }
 
@@ -114,7 +152,7 @@ func StartBackuperNodeForTest(t *testing.T, backuperNode *BackuperNode) context.
 	// 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 := nodesRegistry.GetAvailableNodes()
+		nodes, err := backupNodesRegistry.GetAvailableNodes()
 		if err == nil {
 			for _, node := range nodes {
 				if node.ID == backuperNode.nodeID {
@@ -142,13 +180,13 @@ func StartBackuperNodeForTest(t *testing.T, backuperNode *BackuperNode) context.
 // 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) context.CancelFunc {
+func StartSchedulerForTest(t *testing.T, scheduler *BackupsScheduler) context.CancelFunc {
 	ctx, cancel := context.WithCancel(context.Background())
 
 	done := make(chan struct{})
 
 	go func() {
-		GetBackupsScheduler().Run(ctx)
+		scheduler.Run(ctx)
 		close(done)
 	}()
 
@@ -175,7 +213,7 @@ func StopBackuperNodeForTest(t *testing.T, cancel context.CancelFunc, backuperNo
 	// Wait for node to unregister from registry
 	deadline := time.Now().UTC().Add(2 * time.Second)
 	for time.Now().UTC().Before(deadline) {
-		nodes, err := nodesRegistry.GetAvailableNodes()
+		nodes, err := backupNodesRegistry.GetAvailableNodes()
 		if err == nil {
 			found := false
 			for _, node := range nodes {
@@ -196,13 +234,13 @@ func StopBackuperNodeForTest(t *testing.T, cancel context.CancelFunc, backuperNo
 }
 
 func CreateMockNodeInRegistry(nodeID uuid.UUID, throughputMBs int, lastHeartbeat time.Time) error {
-	backupNode := task_registry.TaskNode{
+	backupNode := BackupNode{
 		ID:            nodeID,
 		ThroughputMBs: throughputMBs,
 		LastHeartbeat: lastHeartbeat,
 	}
 
-	return nodesRegistry.HearthbeatNodeInRegistry(lastHeartbeat, backupNode)
+	return backupNodesRegistry.HearthbeatNodeInRegistry(lastHeartbeat, backupNode)
 }
 
 func UpdateNodeHeartbeatDirectly(
@@ -210,17 +248,17 @@ func UpdateNodeHeartbeatDirectly(
 	throughputMBs int,
 	lastHeartbeat time.Time,
 ) error {
-	backupNode := task_registry.TaskNode{
+	backupNode := BackupNode{
 		ID:            nodeID,
 		ThroughputMBs: throughputMBs,
 		LastHeartbeat: lastHeartbeat,
 	}
 
-	return nodesRegistry.HearthbeatNodeInRegistry(lastHeartbeat, backupNode)
+	return backupNodesRegistry.HearthbeatNodeInRegistry(lastHeartbeat, backupNode)
 }
 
-func GetNodeFromRegistry(nodeID uuid.UUID) (*task_registry.TaskNode, error) {
-	nodes, err := nodesRegistry.GetAvailableNodes()
+func GetNodeFromRegistry(nodeID uuid.UUID) (*BackupNode, error) {
+	nodes, err := backupNodesRegistry.GetAvailableNodes()
 	if err != nil {
 		return nil, err
 	}
@@ -246,7 +284,7 @@ func WaitForActiveTasksDecrease(
 	deadline := time.Now().UTC().Add(timeout)
 
 	for time.Now().UTC().Before(deadline) {
-		stats, err := nodesRegistry.GetNodesStats()
+		stats, err := backupNodesRegistry.GetBackupNodesStats()
 		if err != nil {
 			t.Logf("WaitForActiveTasksDecrease: error getting node stats: %v", err)
 			time.Sleep(500 * time.Millisecond)
@@ -257,14 +295,14 @@ func WaitForActiveTasksDecrease(
 			if stat.ID == nodeID {
 				t.Logf(
 					"WaitForActiveTasksDecrease: current active tasks = %d (initial = %d)",
-					stat.ActiveTasks,
+					stat.ActiveBackups,
 					initialCount,
 				)
-				if stat.ActiveTasks < initialCount {
+				if stat.ActiveBackups < initialCount {
 					t.Logf(
 						"WaitForActiveTasksDecrease: active tasks decreased from %d to %d",
 						initialCount,
-						stat.ActiveTasks,
+						stat.ActiveBackups,
 					)
 					return true
 				}

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

@@ -80,7 +80,7 @@ func Test_GetBackups_PermissionsEnforced(t *testing.T) {
 			owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 			workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
-			database, _ := createTestDatabaseWithBackups(workspace, owner, router)
+			database, _, storage := createTestDatabaseWithBackups(workspace, owner, router)
 
 			var testUserToken string
 			if tt.isGlobalAdmin {
@@ -122,6 +122,12 @@ func Test_GetBackups_PermissionsEnforced(t *testing.T) {
 			} else {
 				assert.Contains(t, string(testResp.Body), "insufficient permissions")
 			}
+
+			// Cleanup
+			databases.RemoveTestDatabase(database)
+			time.Sleep(50 * time.Millisecond)
+			storages.RemoveTestStorage(storage.ID)
+			workspaces_testing.RemoveTestWorkspace(workspace, router)
 		})
 	}
 }
@@ -218,6 +224,10 @@ func Test_CreateBackup_PermissionsEnforced(t *testing.T) {
 			} else {
 				assert.Contains(t, string(testResp.Body), "insufficient permissions")
 			}
+
+			// Cleanup
+			databases.RemoveTestDatabase(database)
+			workspaces_testing.RemoveTestWorkspace(workspace, router)
 		})
 	}
 }
@@ -261,6 +271,10 @@ func Test_CreateBackup_AuditLogWritten(t *testing.T) {
 		}
 	}
 	assert.True(t, found, "Audit log for backup creation not found")
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func Test_DeleteBackup_PermissionsEnforced(t *testing.T) {
@@ -314,7 +328,7 @@ func Test_DeleteBackup_PermissionsEnforced(t *testing.T) {
 			owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 			workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
-			database, backup := createTestDatabaseWithBackups(workspace, owner, router)
+			database, backup, storage := createTestDatabaseWithBackups(workspace, owner, router)
 
 			var testUserToken string
 			if tt.isGlobalAdmin {
@@ -358,6 +372,12 @@ func Test_DeleteBackup_PermissionsEnforced(t *testing.T) {
 				assert.NoError(t, err)
 				assert.Equal(t, 0, len(response.Backups))
 			}
+
+			// Cleanup
+			databases.RemoveTestDatabase(database)
+			time.Sleep(50 * time.Millisecond)
+			storages.RemoveTestStorage(storage.ID)
+			workspaces_testing.RemoveTestWorkspace(workspace, router)
 		})
 	}
 }
@@ -367,7 +387,7 @@ func Test_DeleteBackup_AuditLogWritten(t *testing.T) {
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
-	database, backup := createTestDatabaseWithBackups(workspace, owner, router)
+	database, backup, storage := createTestDatabaseWithBackups(workspace, owner, router)
 
 	test_utils.MakeDeleteRequest(
 		t,
@@ -398,6 +418,12 @@ func Test_DeleteBackup_AuditLogWritten(t *testing.T) {
 		}
 	}
 	assert.True(t, found, "Audit log for backup deletion not found")
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	time.Sleep(50 * time.Millisecond)
+	storages.RemoveTestStorage(storage.ID)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func Test_GenerateDownloadToken_PermissionsEnforced(t *testing.T) {
@@ -444,7 +470,7 @@ func Test_GenerateDownloadToken_PermissionsEnforced(t *testing.T) {
 			owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 			workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
-			_, backup := createTestDatabaseWithBackups(workspace, owner, router)
+			database, backup, storage := createTestDatabaseWithBackups(workspace, owner, router)
 
 			var testUserToken string
 			if tt.isGlobalAdmin {
@@ -488,6 +514,12 @@ func Test_GenerateDownloadToken_PermissionsEnforced(t *testing.T) {
 			} else {
 				assert.Contains(t, string(testResp.Body), "insufficient permissions")
 			}
+
+			// Cleanup
+			databases.RemoveTestDatabase(database)
+			time.Sleep(50 * time.Millisecond)
+			storages.RemoveTestStorage(storage.ID)
+			workspaces_testing.RemoveTestWorkspace(workspace, router)
 		})
 	}
 }
@@ -497,7 +529,7 @@ func Test_DownloadBackup_WithValidToken_Success(t *testing.T) {
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
-	_, backup := createTestDatabaseWithBackups(workspace, owner, router)
+	database, backup, storage := createTestDatabaseWithBackups(workspace, owner, router)
 
 	// Generate download token
 	var tokenResponse backups_download.GenerateDownloadTokenResponse
@@ -524,6 +556,12 @@ func Test_DownloadBackup_WithValidToken_Success(t *testing.T) {
 	contentDisposition := testResp.Headers.Get("Content-Disposition")
 	assert.Contains(t, contentDisposition, "attachment")
 	assert.Contains(t, contentDisposition, tokenResponse.Filename)
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	time.Sleep(50 * time.Millisecond)
+	storages.RemoveTestStorage(storage.ID)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func Test_DownloadBackup_WithoutToken_Unauthorized(t *testing.T) {
@@ -531,7 +569,7 @@ func Test_DownloadBackup_WithoutToken_Unauthorized(t *testing.T) {
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
-	_, backup := createTestDatabaseWithBackups(workspace, owner, router)
+	database, backup, storage := createTestDatabaseWithBackups(workspace, owner, router)
 
 	// Try to download without token
 	testResp := test_utils.MakeGetRequest(
@@ -543,6 +581,12 @@ func Test_DownloadBackup_WithoutToken_Unauthorized(t *testing.T) {
 	)
 
 	assert.Contains(t, string(testResp.Body), "download token is required")
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	time.Sleep(50 * time.Millisecond)
+	storages.RemoveTestStorage(storage.ID)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func Test_DownloadBackup_WithInvalidToken_Unauthorized(t *testing.T) {
@@ -550,7 +594,7 @@ func Test_DownloadBackup_WithInvalidToken_Unauthorized(t *testing.T) {
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
-	_, backup := createTestDatabaseWithBackups(workspace, owner, router)
+	database, backup, storage := createTestDatabaseWithBackups(workspace, owner, router)
 
 	// Try to download with invalid token
 	testResp := test_utils.MakeGetRequest(
@@ -562,6 +606,12 @@ func Test_DownloadBackup_WithInvalidToken_Unauthorized(t *testing.T) {
 	)
 
 	assert.Contains(t, string(testResp.Body), "invalid or expired download token")
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	time.Sleep(50 * time.Millisecond)
+	storages.RemoveTestStorage(storage.ID)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func Test_DownloadBackup_WithExpiredToken_Unauthorized(t *testing.T) {
@@ -569,7 +619,7 @@ func Test_DownloadBackup_WithExpiredToken_Unauthorized(t *testing.T) {
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
-	database, backup := createTestDatabaseWithBackups(workspace, owner, router)
+	database, backup, storage := createTestDatabaseWithBackups(workspace, owner, router)
 
 	// Get user for token generation
 	userService := users_services.GetUserService()
@@ -611,6 +661,12 @@ func Test_DownloadBackup_WithExpiredToken_Unauthorized(t *testing.T) {
 		}
 	}
 	assert.False(t, found, "Audit log should NOT be created for failed download with expired token")
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	time.Sleep(50 * time.Millisecond)
+	storages.RemoveTestStorage(storage.ID)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func Test_DownloadBackup_TokenUsedOnce_CannotReuseToken(t *testing.T) {
@@ -618,7 +674,7 @@ func Test_DownloadBackup_TokenUsedOnce_CannotReuseToken(t *testing.T) {
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
-	_, backup := createTestDatabaseWithBackups(workspace, owner, router)
+	database, backup, storage := createTestDatabaseWithBackups(workspace, owner, router)
 
 	// Generate download token
 	var tokenResponse backups_download.GenerateDownloadTokenResponse
@@ -651,6 +707,12 @@ func Test_DownloadBackup_TokenUsedOnce_CannotReuseToken(t *testing.T) {
 	)
 
 	assert.Contains(t, string(testResp.Body), "invalid or expired download token")
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	time.Sleep(50 * time.Millisecond)
+	storages.RemoveTestStorage(storage.ID)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func Test_DownloadBackup_WithDifferentBackupToken_Unauthorized(t *testing.T) {
@@ -705,6 +767,13 @@ func Test_DownloadBackup_WithDifferentBackupToken_Unauthorized(t *testing.T) {
 	)
 
 	assert.Contains(t, string(testResp.Body), "invalid or expired download token")
+
+	// Cleanup
+	databases.RemoveTestDatabase(database1)
+	databases.RemoveTestDatabase(database2)
+	time.Sleep(50 * time.Millisecond)
+	storages.RemoveTestStorage(storage.ID)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func Test_DownloadBackup_AuditLogWritten(t *testing.T) {
@@ -712,7 +781,7 @@ func Test_DownloadBackup_AuditLogWritten(t *testing.T) {
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
-	database, backup := createTestDatabaseWithBackups(workspace, owner, router)
+	database, backup, storage := createTestDatabaseWithBackups(workspace, owner, router)
 
 	// Generate download token
 	var tokenResponse backups_download.GenerateDownloadTokenResponse
@@ -756,6 +825,12 @@ func Test_DownloadBackup_AuditLogWritten(t *testing.T) {
 		}
 	}
 	assert.True(t, found, "Audit log for backup download not found")
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	time.Sleep(50 * time.Millisecond)
+	storages.RemoveTestStorage(storage.ID)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func Test_DownloadBackup_ProperFilenameForPostgreSQL(t *testing.T) {
@@ -856,6 +931,12 @@ func Test_DownloadBackup_ProperFilenameForPostgreSQL(t *testing.T) {
 				contentDisposition,
 				"Filename should contain timestamp",
 			)
+
+			// Cleanup
+			databases.RemoveTestDatabase(database)
+			time.Sleep(50 * time.Millisecond)
+			storages.RemoveTestStorage(storage.ID)
+			workspaces_testing.RemoveTestWorkspace(workspace, router)
 		})
 	}
 }
@@ -948,6 +1029,12 @@ func Test_CancelBackup_InProgressBackup_SuccessfullyCancelled(t *testing.T) {
 		}
 	}
 	assert.True(t, foundCancelLog, "Cancel audit log should be created")
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	time.Sleep(50 * time.Millisecond)
+	storages.RemoveTestStorage(storage.ID)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func Test_ConcurrentDownloadPrevention(t *testing.T) {
@@ -955,7 +1042,7 @@ func Test_ConcurrentDownloadPrevention(t *testing.T) {
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
-	database, backup := createTestDatabaseWithBackups(workspace, owner, router)
+	database, backup, storage := createTestDatabaseWithBackups(workspace, owner, router)
 
 	var token1Response backups_download.GenerateDownloadTokenResponse
 	test_utils.MakePostRequestAndUnmarshal(
@@ -1003,6 +1090,12 @@ func Test_ConcurrentDownloadPrevention(t *testing.T) {
 	if !service.IsDownloadInProgress(owner.UserID) {
 		t.Log("Warning: First download completed before we could test concurrency")
 		<-downloadComplete
+
+		// Cleanup before early return
+		databases.RemoveTestDatabase(database)
+		time.Sleep(50 * time.Millisecond)
+		storages.RemoveTestStorage(storage.ID)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
 		return
 	}
 
@@ -1049,6 +1142,12 @@ func Test_ConcurrentDownloadPrevention(t *testing.T) {
 	t.Log(
 		"Successfully prevented concurrent downloads and allowed subsequent downloads after completion",
 	)
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	time.Sleep(50 * time.Millisecond)
+	storages.RemoveTestStorage(storage.ID)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func Test_GenerateDownloadToken_BlockedWhenDownloadInProgress(t *testing.T) {
@@ -1056,7 +1155,7 @@ func Test_GenerateDownloadToken_BlockedWhenDownloadInProgress(t *testing.T) {
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
-	database, backup := createTestDatabaseWithBackups(workspace, owner, router)
+	database, backup, storage := createTestDatabaseWithBackups(workspace, owner, router)
 
 	var token1Response backups_download.GenerateDownloadTokenResponse
 	test_utils.MakePostRequestAndUnmarshal(
@@ -1092,6 +1191,12 @@ func Test_GenerateDownloadToken_BlockedWhenDownloadInProgress(t *testing.T) {
 	if !service.IsDownloadInProgress(owner.UserID) {
 		t.Log("Warning: First download completed before we could test token generation blocking")
 		<-downloadComplete
+
+		// Cleanup before early return
+		databases.RemoveTestDatabase(database)
+		time.Sleep(50 * time.Millisecond)
+		storages.RemoveTestStorage(storage.ID)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
 		return
 	}
 
@@ -1131,6 +1236,12 @@ func Test_GenerateDownloadToken_BlockedWhenDownloadInProgress(t *testing.T) {
 	t.Log(
 		"Successfully blocked token generation during download and allowed generation after completion",
 	)
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	time.Sleep(50 * time.Millisecond)
+	storages.RemoveTestStorage(storage.ID)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func createTestRouter() *gin.Engine {
@@ -1156,7 +1267,7 @@ func createTestDatabase(
 		Type:        databases.DatabaseTypePostgres,
 		Postgresql: &postgresql.PostgresqlDatabase{
 			Version:  tools.PostgresqlVersion16,
-			Host:     "localhost",
+			Host:     config.GetEnv().TestLocalhost,
 			Port:     port,
 			Username: "testuser",
 			Password: "testpassword",
@@ -1222,7 +1333,7 @@ func createTestDatabaseWithBackups(
 	workspace *workspaces_models.Workspace,
 	owner *users_dto.SignInResponseDTO,
 	router *gin.Engine,
-) (*databases.Database, *backups_core.Backup) {
+) (*databases.Database, *backups_core.Backup, *storages.Storage) {
 	database := createTestDatabase("Test Database", workspace.ID, owner.Token, router)
 	storage := createTestStorage(workspace.ID)
 
@@ -1242,7 +1353,7 @@ func createTestDatabaseWithBackups(
 
 	backup := createTestBackup(database, owner)
 
-	return database, backup
+	return database, backup, storage
 }
 
 func createTestBackup(
@@ -1255,11 +1366,24 @@ func createTestBackup(
 		panic(err)
 	}
 
-	storages, err := storages.GetStorageService().GetStorages(user, *database.WorkspaceID)
-	if err != nil || len(storages) == 0 {
+	loadedStorages, err := storages.GetStorageService().GetStorages(user, *database.WorkspaceID)
+	if err != nil || len(loadedStorages) == 0 {
 		panic("No storage found for workspace")
 	}
 
+	// Filter out system storages
+	var nonSystemStorages []*storages.Storage
+	for _, storage := range loadedStorages {
+		if !storage.IsSystem {
+			nonSystemStorages = append(nonSystemStorages, storage)
+		}
+	}
+	if len(nonSystemStorages) == 0 {
+		panic("No non-system storage found for workspace")
+	}
+
+	storages := nonSystemStorages
+
 	backup := &backups_core.Backup{
 		ID:               uuid.New(),
 		DatabaseID:       database.ID,
@@ -1320,7 +1444,7 @@ func Test_BandwidthThrottling_SingleDownload_Uses75Percent(t *testing.T) {
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
 
-	_, backup := createTestDatabaseWithBackups(workspace, owner, router)
+	database, backup, storage := createTestDatabaseWithBackups(workspace, owner, router)
 
 	bandwidthManager := backups_download.GetBandwidthManager()
 	initialCount := bandwidthManager.GetActiveDownloadCount()
@@ -1370,6 +1494,12 @@ func Test_BandwidthThrottling_SingleDownload_Uses75Percent(t *testing.T) {
 	time.Sleep(50 * time.Millisecond)
 	finalCount := bandwidthManager.GetActiveDownloadCount()
 	assert.Equal(t, initialCount, finalCount, "Download should be unregistered after completion")
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	time.Sleep(50 * time.Millisecond)
+	storages.RemoveTestStorage(storage.ID)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func Test_BandwidthThrottling_MultipleDownloads_ShareBandwidth(t *testing.T) {
@@ -1489,6 +1619,12 @@ func Test_BandwidthThrottling_MultipleDownloads_ShareBandwidth(t *testing.T) {
 	time.Sleep(100 * time.Millisecond)
 	finalCount := bandwidthManager.GetActiveDownloadCount()
 	assert.Equal(t, initialCount, finalCount, "All downloads should be unregistered")
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	time.Sleep(50 * time.Millisecond)
+	storages.RemoveTestStorage(storage.ID)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func Test_BandwidthThrottling_DynamicAdjustment(t *testing.T) {
@@ -1577,4 +1713,10 @@ func Test_BandwidthThrottling_DynamicAdjustment(t *testing.T) {
 	time.Sleep(100 * time.Millisecond)
 	finalCount := bandwidthManager.GetActiveDownloadCount()
 	assert.Equal(t, initialCount, finalCount, "All downloads completed and unregistered")
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	time.Sleep(50 * time.Millisecond)
+	storages.RemoveTestStorage(storage.ID)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }

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

@@ -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

@@ -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

@@ -1,6 +1,9 @@
 package backups
 
 import (
+	"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"
@@ -22,22 +25,23 @@ var backupRepository = &backups_core.BackupRepository{}
 var taskCancelManager = task_cancellation.GetTaskCancelManager()
 
 var backupService = &BackupService{
-	databaseService:        databases.GetDatabaseService(),
-	storageService:         storages.GetStorageService(),
-	backupRepository:       backupRepository,
-	notifierService:        notifiers.GetNotifierService(),
-	notificationSender:     notifiers.GetNotifierService(),
-	backupConfigService:    backups_config.GetBackupConfigService(),
-	secretKeyService:       encryption_secrets.GetSecretKeyService(),
-	fieldEncryptor:         encryption.GetFieldEncryptor(),
-	createBackupUseCase:    usecases.GetCreateBackupUsecase(),
-	logger:                 logger.GetLogger(),
-	backupRemoveListeners:  []backups_core.BackupRemoveListener{},
-	workspaceService:       workspaces_services.GetWorkspaceService(),
-	auditLogService:        audit_logs.GetAuditLogService(),
-	taskCancelManager:      taskCancelManager,
-	downloadTokenService:   backups_download.GetDownloadTokenService(),
-	backupSchedulerService: backuping.GetBackupsScheduler(),
+	databases.GetDatabaseService(),
+	storages.GetStorageService(),
+	backupRepository,
+	notifiers.GetNotifierService(),
+	notifiers.GetNotifierService(),
+	backups_config.GetBackupConfigService(),
+	encryption_secrets.GetSecretKeyService(),
+	encryption.GetFieldEncryptor(),
+	usecases.GetCreateBackupUsecase(),
+	logger.GetLogger(),
+	[]backups_core.BackupRemoveListener{},
+	workspaces_services.GetWorkspaceService(),
+	audit_logs.GetAuditLogService(),
+	taskCancelManager,
+	backups_download.GetDownloadTokenService(),
+	backuping.GetBackupsScheduler(),
+	backuping.GetBackupCleaner(),
 }
 
 var backupController = &BackupController{
@@ -52,11 +56,26 @@ func GetBackupController() *BackupController {
 	return backupController
 }
 
-func SetupDependencies() {
-	backups_config.
-		GetBackupConfigService().
-		SetDatabaseStorageChangeListener(backupService)
+var (
+	setupOnce sync.Once
+	isSetup   atomic.Bool
+)
 
-	databases.GetDatabaseService().AddDbRemoveListener(backupService)
-	databases.GetDatabaseService().AddDbCopyListener(backups_config.GetBackupConfigService())
+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

@@ -2,33 +2,49 @@ 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) {
-	s.logger.Info("Starting download token cleanup background service")
+	wasAlreadyRun := s.hasRun.Load()
 
-	if ctx.Err() != nil {
-		return
-	}
+	s.runOnce.Do(func() {
+		s.hasRun.Store(true)
 
-	ticker := time.NewTicker(1 * time.Minute)
-	defer ticker.Stop()
+		s.logger.Info("Starting download token cleanup background service")
 
-	for {
-		select {
-		case <-ctx.Done():
+		if ctx.Err() != nil {
 			return
-		case <-ticker.C:
-			if err := s.downloadTokenService.CleanExpiredTokens(); err != nil {
-				s.logger.Error("Failed to clean expired download tokens", "error", err)
+		}
+
+		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/di.go

@@ -1,6 +1,9 @@
 package backups_download
 
 import (
+	"sync"
+	"sync/atomic"
+
 	"databasus-backend/internal/config"
 	cache_utils "databasus-backend/internal/util/cache"
 	"databasus-backend/internal/util/logger"
@@ -30,8 +33,10 @@ func init() {
 	}
 
 	downloadTokenBackgroundService = &DownloadTokenBackgroundService{
-		downloadTokenService,
-		logger.GetLogger(),
+		downloadTokenService: downloadTokenService,
+		logger:               logger.GetLogger(),
+		runOnce:              sync.Once{},
+		hasRun:               atomic.Bool{},
 	}
 }
 

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

@@ -46,6 +46,7 @@ type BackupService struct {
 	taskCancelManager      *task_cancellation.TaskCancelManager
 	downloadTokenService   *backups_download.DownloadTokenService
 	backupSchedulerService *backuping.BackupsScheduler
+	backupCleaner          *backuping.BackupCleaner
 }
 
 func (s *BackupService) AddBackupRemoveListener(listener backups_core.BackupRemoveListener) {
@@ -189,7 +190,7 @@ func (s *BackupService) DeleteBackup(
 		database.WorkspaceID,
 	)
 
-	return s.deleteBackup(backup)
+	return s.backupCleaner.DeleteBackup(backup)
 }
 
 func (s *BackupService) GetBackup(backupID uuid.UUID) (*backups_core.Backup, error) {
@@ -292,29 +293,6 @@ func (s *BackupService) GetBackupFile(
 	return reader, backup, database, nil
 }
 
-func (s *BackupService) deleteBackup(backup *backups_core.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,
@@ -336,7 +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
 		}

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

@@ -75,3 +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/config/controller.go

@@ -16,6 +16,7 @@ type BackupConfigController struct {
 
 func (c *BackupConfigController) RegisterRoutes(router *gin.RouterGroup) {
 	router.POST("/backup-configs/save", c.SaveBackupConfig)
+	router.GET("/backup-configs/database/:id/plan", c.GetDatabasePlan)
 	router.GET("/backup-configs/database/:id", c.GetBackupConfigByDbID)
 	router.GET("/backup-configs/storage/:id/is-using", c.IsStorageUsing)
 	router.GET("/backup-configs/storage/:id/databases-count", c.CountDatabasesForStorage)
@@ -92,6 +93,39 @@ func (c *BackupConfigController) GetBackupConfigByDbID(ctx *gin.Context) {
 	ctx.JSON(http.StatusOK, backupConfig)
 }
 
+// GetDatabasePlan
+// @Summary Get database plan by database ID
+// @Description Get the plan limits for a specific database (max backup size, max total size, max storage period)
+// @Tags backup-configs
+// @Produce json
+// @Param id path string true "Database ID"
+// @Success 200 {object} plans.DatabasePlan
+// @Failure 400 {object} map[string]string "Invalid database ID"
+// @Failure 401 {object} map[string]string "User not authenticated"
+// @Failure 404 {object} map[string]string "Database not found or access denied"
+// @Router /backup-configs/database/{id}/plan [get]
+func (c *BackupConfigController) GetDatabasePlan(ctx *gin.Context) {
+	user, ok := users_middleware.GetUserFromContext(ctx)
+	if !ok {
+		ctx.JSON(http.StatusUnauthorized, gin.H{"error": "User not authenticated"})
+		return
+	}
+
+	id, err := uuid.Parse(ctx.Param("id"))
+	if err != nil {
+		ctx.JSON(http.StatusBadRequest, gin.H{"error": "invalid database ID"})
+		return
+	}
+
+	plan, err := c.backupConfigService.GetDatabasePlan(user, id)
+	if err != nil {
+		ctx.JSON(http.StatusNotFound, gin.H{"error": "database plan not found"})
+		return
+	}
+
+	ctx.JSON(http.StatusOK, plan)
+}
+
 // IsStorageUsing
 // @Summary Check if storage is being used
 // @Description Check if a storage is currently being used by any backup configuration

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

@@ -6,6 +6,7 @@ import (
 	"net/http"
 	"strconv"
 	"testing"
+	"time"
 
 	"github.com/gin-gonic/gin"
 	"github.com/google/uuid"
@@ -16,11 +17,14 @@ import (
 	"databasus-backend/internal/features/databases/databases/postgresql"
 	"databasus-backend/internal/features/intervals"
 	"databasus-backend/internal/features/notifiers"
+	plans "databasus-backend/internal/features/plan"
 	"databasus-backend/internal/features/storages"
+	local_storage "databasus-backend/internal/features/storages/models/local"
 	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"
+	"databasus-backend/internal/storage"
 	"databasus-backend/internal/util/period"
 	test_utils "databasus-backend/internal/util/testing"
 	"databasus-backend/internal/util/tools"
@@ -89,6 +93,11 @@ func Test_SaveBackupConfig_PermissionsEnforced(t *testing.T) {
 
 			database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
 
+			defer func() {
+				databases.RemoveTestDatabase(database)
+				workspaces_testing.RemoveTestWorkspace(workspace, router)
+			}()
+
 			var testUserToken string
 			if tt.isGlobalAdmin {
 				admin := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
@@ -152,6 +161,11 @@ func Test_SaveBackupConfig_WhenUserIsNotWorkspaceMember_ReturnsForbidden(t *test
 
 	database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+	}()
+
 	nonMember := users_testing.CreateTestUser(users_enums.UserRoleMember)
 
 	timeOfDay := "04:00"
@@ -242,6 +256,11 @@ func Test_GetBackupConfigByDbID_PermissionsEnforced(t *testing.T) {
 
 			database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
 
+			defer func() {
+				databases.RemoveTestDatabase(database)
+				workspaces_testing.RemoveTestWorkspace(workspace, router)
+			}()
+
 			var testUserToken string
 			if tt.isGlobalAdmin {
 				admin := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
@@ -290,6 +309,11 @@ func Test_GetBackupConfigByDbID_ReturnsDefaultConfigForNewDatabase(t *testing.T)
 
 	database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+	}()
+
 	var response BackupConfig
 	test_utils.MakeGetRequestAndUnmarshal(
 		t,
@@ -300,14 +324,214 @@ func Test_GetBackupConfigByDbID_ReturnsDefaultConfigForNewDatabase(t *testing.T)
 		&response,
 	)
 
+	var plan plans.DatabasePlan
+
+	test_utils.MakeGetRequestAndUnmarshal(
+		t,
+		router,
+		"/api/v1/backup-configs/database/"+database.ID.String()+"/plan",
+		"Bearer "+owner.Token,
+		http.StatusOK,
+		&plan,
+	)
+
 	assert.Equal(t, database.ID, response.DatabaseID)
 	assert.False(t, response.IsBackupsEnabled)
-	assert.Equal(t, period.PeriodWeek, response.StorePeriod)
+	assert.Equal(t, plan.MaxStoragePeriod, response.StorePeriod)
+	assert.Equal(t, plan.MaxBackupSizeMB, response.MaxBackupSizeMB)
+	assert.Equal(t, plan.MaxBackupsTotalSizeMB, response.MaxBackupsTotalSizeMB)
 	assert.True(t, response.IsRetryIfFailed)
 	assert.Equal(t, 3, response.MaxFailedTriesCount)
 	assert.NotNil(t, response.BackupInterval)
 }
 
+func Test_GetDatabasePlan_ForNewDatabase_PlanAlwaysReturned(t *testing.T) {
+	router := createTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+
+	database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
+
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+	}()
+
+	var response plans.DatabasePlan
+	test_utils.MakeGetRequestAndUnmarshal(
+		t,
+		router,
+		"/api/v1/backup-configs/database/"+database.ID.String()+"/plan",
+		"Bearer "+owner.Token,
+		http.StatusOK,
+		&response,
+	)
+
+	assert.Equal(t, database.ID, response.DatabaseID)
+	assert.NotNil(t, response.MaxBackupSizeMB)
+	assert.NotNil(t, response.MaxBackupsTotalSizeMB)
+	assert.NotEmpty(t, response.MaxStoragePeriod)
+}
+
+func Test_SaveBackupConfig_WhenPlanLimitsAreAdjusted_ValidationEnforced(t *testing.T) {
+	router := createTestRouter()
+	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+
+	database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
+
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+	}()
+
+	// Get plan via API (triggers auto-creation)
+	var plan plans.DatabasePlan
+	test_utils.MakeGetRequestAndUnmarshal(
+		t,
+		router,
+		"/api/v1/backup-configs/database/"+database.ID.String()+"/plan",
+		"Bearer "+owner.Token,
+		http.StatusOK,
+		&plan,
+	)
+
+	assert.Equal(t, database.ID, plan.DatabaseID)
+
+	// Adjust plan limits directly in database to fixed restrictive values
+	err := storage.GetDb().Model(&plans.DatabasePlan{}).
+		Where("database_id = ?", database.ID).
+		Updates(map[string]any{
+			"max_backup_size_mb":        100,
+			"max_backups_total_size_mb": 1000,
+			"max_storage_period":        period.PeriodMonth,
+		}).Error
+	assert.NoError(t, err)
+
+	// Test 1: Try to save backup config with exceeded backup size limit
+	timeOfDay := "04:00"
+	backupConfigExceededSize := BackupConfig{
+		DatabaseID:       database.ID,
+		IsBackupsEnabled: true,
+		StorePeriod:      period.PeriodWeek,
+		BackupInterval: &intervals.Interval{
+			Interval:  intervals.IntervalDaily,
+			TimeOfDay: &timeOfDay,
+		},
+		SendNotificationsOn: []BackupNotificationType{
+			NotificationBackupFailed,
+		},
+		IsRetryIfFailed:       true,
+		MaxFailedTriesCount:   3,
+		Encryption:            BackupEncryptionNone,
+		MaxBackupSizeMB:       200, // Exceeds limit of 100
+		MaxBackupsTotalSizeMB: 800,
+	}
+
+	respExceededSize := test_utils.MakePostRequest(
+		t,
+		router,
+		"/api/v1/backup-configs/save",
+		"Bearer "+owner.Token,
+		backupConfigExceededSize,
+		http.StatusBadRequest,
+	)
+	assert.Contains(t, string(respExceededSize.Body), "max backup size exceeds plan limit")
+
+	// Test 2: Try to save backup config with exceeded total size limit
+	backupConfigExceededTotal := BackupConfig{
+		DatabaseID:       database.ID,
+		IsBackupsEnabled: true,
+		StorePeriod:      period.PeriodWeek,
+		BackupInterval: &intervals.Interval{
+			Interval:  intervals.IntervalDaily,
+			TimeOfDay: &timeOfDay,
+		},
+		SendNotificationsOn: []BackupNotificationType{
+			NotificationBackupFailed,
+		},
+		IsRetryIfFailed:       true,
+		MaxFailedTriesCount:   3,
+		Encryption:            BackupEncryptionNone,
+		MaxBackupSizeMB:       50,
+		MaxBackupsTotalSizeMB: 2000, // Exceeds limit of 1000
+	}
+
+	respExceededTotal := test_utils.MakePostRequest(
+		t,
+		router,
+		"/api/v1/backup-configs/save",
+		"Bearer "+owner.Token,
+		backupConfigExceededTotal,
+		http.StatusBadRequest,
+	)
+	assert.Contains(t, string(respExceededTotal.Body), "max total backups size exceeds plan limit")
+
+	// Test 3: Try to save backup config with exceeded storage period limit
+	backupConfigExceededPeriod := BackupConfig{
+		DatabaseID:       database.ID,
+		IsBackupsEnabled: true,
+		StorePeriod:      period.PeriodYear, // Exceeds limit of Month
+		BackupInterval: &intervals.Interval{
+			Interval:  intervals.IntervalDaily,
+			TimeOfDay: &timeOfDay,
+		},
+		SendNotificationsOn: []BackupNotificationType{
+			NotificationBackupFailed,
+		},
+		IsRetryIfFailed:       true,
+		MaxFailedTriesCount:   3,
+		Encryption:            BackupEncryptionNone,
+		MaxBackupSizeMB:       80,
+		MaxBackupsTotalSizeMB: 800,
+	}
+
+	respExceededPeriod := test_utils.MakePostRequest(
+		t,
+		router,
+		"/api/v1/backup-configs/save",
+		"Bearer "+owner.Token,
+		backupConfigExceededPeriod,
+		http.StatusBadRequest,
+	)
+	assert.Contains(t, string(respExceededPeriod.Body), "storage period exceeds plan limit")
+
+	// Test 4: Save backup config within all limits - should succeed
+	backupConfigValid := BackupConfig{
+		DatabaseID:       database.ID,
+		IsBackupsEnabled: true,
+		StorePeriod:      period.PeriodWeek, // Within Month limit
+		BackupInterval: &intervals.Interval{
+			Interval:  intervals.IntervalDaily,
+			TimeOfDay: &timeOfDay,
+		},
+		SendNotificationsOn: []BackupNotificationType{
+			NotificationBackupFailed,
+		},
+		IsRetryIfFailed:       true,
+		MaxFailedTriesCount:   3,
+		Encryption:            BackupEncryptionNone,
+		MaxBackupSizeMB:       80,  // Within 100 limit
+		MaxBackupsTotalSizeMB: 800, // Within 1000 limit
+	}
+
+	var responseValid BackupConfig
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		"/api/v1/backup-configs/save",
+		"Bearer "+owner.Token,
+		backupConfigValid,
+		http.StatusOK,
+		&responseValid,
+	)
+
+	assert.Equal(t, database.ID, responseValid.DatabaseID)
+	assert.Equal(t, int64(80), responseValid.MaxBackupSizeMB)
+	assert.Equal(t, int64(800), responseValid.MaxBackupsTotalSizeMB)
+	assert.Equal(t, period.PeriodWeek, responseValid.StorePeriod)
+}
+
 func Test_IsStorageUsing_PermissionsEnforced(t *testing.T) {
 	tests := []struct {
 		name               string
@@ -340,6 +564,10 @@ func Test_IsStorageUsing_PermissionsEnforced(t *testing.T) {
 			)
 			storage := createTestStorage(workspace.ID)
 
+			defer func() {
+				workspaces_testing.RemoveTestWorkspace(workspace, router)
+			}()
+
 			var testUserToken string
 			if tt.isStorageOwner {
 				testUserToken = storageOwner.Token
@@ -372,10 +600,6 @@ func Test_IsStorageUsing_PermissionsEnforced(t *testing.T) {
 				)
 				assert.Contains(t, string(testResp.Body), "error")
 			}
-
-			// Cleanup
-			storages.RemoveTestStorage(storage.ID)
-			workspaces_testing.RemoveTestWorkspace(workspace, router)
 		})
 	}
 }
@@ -387,6 +611,11 @@ func Test_SaveBackupConfig_WithEncryptionNone_ConfigSaved(t *testing.T) {
 
 	database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+	}()
+
 	timeOfDay := "04:00"
 	request := BackupConfig{
 		DatabaseID:       database.ID,
@@ -426,6 +655,11 @@ func Test_SaveBackupConfig_WithEncryptionEncrypted_ConfigSaved(t *testing.T) {
 
 	database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+	}()
+
 	timeOfDay := "04:00"
 	request := BackupConfig{
 		DatabaseID:       database.ID,
@@ -536,6 +770,15 @@ func Test_TransferDatabase_PermissionsEnforced(t *testing.T) {
 
 			targetStorage := createTestStorage(targetWorkspace.ID)
 
+			defer func() {
+				// Cleanup in correct order to avoid foreign key violations
+				databases.RemoveTestDatabase(database)
+				time.Sleep(50 * time.Millisecond) // Wait for cascade delete of backup_config
+				storages.RemoveTestStorage(targetStorage.ID)
+				workspaces_testing.RemoveTestWorkspace(sourceWorkspace, router)
+				workspaces_testing.RemoveTestWorkspace(targetWorkspace, router)
+			}()
+
 			var testUserToken string
 			if tt.isGlobalAdmin {
 				admin := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
@@ -628,6 +871,12 @@ func Test_TransferDatabase_NonMemberInSourceWorkspace_CannotTransfer(t *testing.
 		router,
 	)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		workspaces_testing.RemoveTestWorkspace(sourceWorkspace, router)
+		workspaces_testing.RemoveTestWorkspace(targetWorkspace, router)
+	}()
+
 	request := TransferDatabaseRequest{
 		TargetWorkspaceID: targetWorkspace.ID,
 	}
@@ -668,6 +917,12 @@ func Test_TransferDatabase_NonMemberInTargetWorkspace_CannotTransfer(t *testing.
 		router,
 	)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		workspaces_testing.RemoveTestWorkspace(sourceWorkspace, router)
+		workspaces_testing.RemoveTestWorkspace(targetWorkspace, router)
+	}()
+
 	request := TransferDatabaseRequest{
 		TargetWorkspaceID: targetWorkspace.ID,
 	}
@@ -695,6 +950,13 @@ func Test_TransferDatabase_ToNewStorage_DatabaseTransferd(t *testing.T) {
 	sourceStorage := createTestStorage(sourceWorkspace.ID)
 	targetStorage := createTestStorage(targetWorkspace.ID)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		time.Sleep(200 * time.Millisecond) // Wait for cascading deletes
+		workspaces_testing.RemoveTestWorkspace(sourceWorkspace, router)
+		workspaces_testing.RemoveTestWorkspace(targetWorkspace, router)
+	}()
+
 	timeOfDay := "04:00"
 	backupConfigRequest := BackupConfig{
 		DatabaseID:       database.ID,
@@ -774,6 +1036,13 @@ func Test_TransferDatabase_WithExistingStorage_DatabaseAndStorageTransferd(t *te
 	database := createTestDatabaseViaAPI("Test Database", sourceWorkspace.ID, owner.Token, router)
 	storage := createTestStorage(sourceWorkspace.ID)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		time.Sleep(200 * time.Millisecond) // Wait for cascading deletes
+		workspaces_testing.RemoveTestWorkspace(sourceWorkspace, router)
+		workspaces_testing.RemoveTestWorkspace(targetWorkspace, router)
+	}()
+
 	timeOfDay := "04:00"
 	backupConfigRequest := BackupConfig{
 		DatabaseID:       database.ID,
@@ -863,6 +1132,14 @@ func Test_TransferDatabase_StorageHasOtherDBs_CannotTransfer(t *testing.T) {
 	)
 	storage := createTestStorage(sourceWorkspace.ID)
 
+	defer func() {
+		databases.RemoveTestDatabase(database1)
+		databases.RemoveTestDatabase(database2)
+		time.Sleep(200 * time.Millisecond) // Wait for cascading deletes
+		workspaces_testing.RemoveTestWorkspace(sourceWorkspace, router)
+		workspaces_testing.RemoveTestWorkspace(targetWorkspace, router)
+	}()
+
 	timeOfDay := "04:00"
 	backupConfigRequest1 := BackupConfig{
 		DatabaseID:       database1.ID,
@@ -945,6 +1222,14 @@ func Test_TransferDatabase_WithNotifiers_NotifiersTransferred(t *testing.T) {
 	targetStorage := createTestStorage(targetWorkspace.ID)
 	notifier := notifiers.CreateTestNotifier(sourceWorkspace.ID)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		time.Sleep(200 * time.Millisecond)
+		notifiers.RemoveTestNotifier(notifier)
+		workspaces_testing.RemoveTestWorkspace(sourceWorkspace, router)
+		workspaces_testing.RemoveTestWorkspace(targetWorkspace, router)
+	}()
+
 	database.Notifiers = []notifiers.Notifier{*notifier}
 	var updatedDatabase databases.Database
 	test_utils.MakePostRequestAndUnmarshal(
@@ -1048,6 +1333,15 @@ func Test_TransferDatabase_NotifierHasOtherDBs_NotifierSkipped(t *testing.T) {
 	targetStorage := createTestStorage(targetWorkspace.ID)
 	sharedNotifier := notifiers.CreateTestNotifier(sourceWorkspace.ID)
 
+	defer func() {
+		databases.RemoveTestDatabase(database1)
+		databases.RemoveTestDatabase(database2)
+		time.Sleep(200 * time.Millisecond)
+		notifiers.RemoveTestNotifier(sharedNotifier)
+		workspaces_testing.RemoveTestWorkspace(sourceWorkspace, router)
+		workspaces_testing.RemoveTestWorkspace(targetWorkspace, router)
+	}()
+
 	database1.Notifiers = []notifiers.Notifier{*sharedNotifier}
 	test_utils.MakePostRequest(
 		t,
@@ -1160,6 +1454,16 @@ func Test_TransferDatabase_WithMultipleNotifiers_OnlyExclusiveOnesTransferred(t
 	exclusiveNotifier := notifiers.CreateTestNotifier(sourceWorkspace.ID)
 	sharedNotifier := notifiers.CreateTestNotifier(sourceWorkspace.ID)
 
+	defer func() {
+		databases.RemoveTestDatabase(database1)
+		databases.RemoveTestDatabase(database2)
+		time.Sleep(200 * time.Millisecond)
+		notifiers.RemoveTestNotifier(exclusiveNotifier)
+		notifiers.RemoveTestNotifier(sharedNotifier)
+		workspaces_testing.RemoveTestWorkspace(sourceWorkspace, router)
+		workspaces_testing.RemoveTestWorkspace(targetWorkspace, router)
+	}()
+
 	database1.Notifiers = []notifiers.Notifier{*exclusiveNotifier, *sharedNotifier}
 	test_utils.MakePostRequest(
 		t,
@@ -1271,6 +1575,14 @@ func Test_TransferDatabase_WithTargetNotifiers_NotifiersAssigned(t *testing.T) {
 	targetStorage := createTestStorage(targetWorkspace.ID)
 	targetNotifier := notifiers.CreateTestNotifier(targetWorkspace.ID)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		time.Sleep(200 * time.Millisecond)
+		notifiers.RemoveTestNotifier(targetNotifier)
+		workspaces_testing.RemoveTestWorkspace(sourceWorkspace, router)
+		workspaces_testing.RemoveTestWorkspace(targetWorkspace, router)
+	}()
+
 	timeOfDay := "04:00"
 	backupConfigRequest := BackupConfig{
 		DatabaseID:       database.ID,
@@ -1342,6 +1654,15 @@ func Test_TransferDatabase_TargetNotifierFromDifferentWorkspace_ReturnsBadReques
 	targetStorage := createTestStorage(targetWorkspace.ID)
 	wrongNotifier := notifiers.CreateTestNotifier(otherWorkspace.ID)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		time.Sleep(200 * time.Millisecond)
+		notifiers.RemoveTestNotifier(wrongNotifier)
+		workspaces_testing.RemoveTestWorkspace(sourceWorkspace, router)
+		workspaces_testing.RemoveTestWorkspace(targetWorkspace, router)
+		workspaces_testing.RemoveTestWorkspace(otherWorkspace, router)
+	}()
+
 	timeOfDay := "04:00"
 	backupConfigRequest := BackupConfig{
 		DatabaseID:       database.ID,
@@ -1399,6 +1720,14 @@ func Test_TransferDatabase_TargetStorageFromDifferentWorkspace_ReturnsBadRequest
 	sourceStorage := createTestStorage(sourceWorkspace.ID)
 	wrongStorage := createTestStorage(otherWorkspace.ID)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		time.Sleep(200 * time.Millisecond)
+		workspaces_testing.RemoveTestWorkspace(sourceWorkspace, router)
+		workspaces_testing.RemoveTestWorkspace(targetWorkspace, router)
+		workspaces_testing.RemoveTestWorkspace(otherWorkspace, router)
+	}()
+
 	timeOfDay := "04:00"
 	backupConfigRequest := BackupConfig{
 		DatabaseID:       database.ID,
@@ -1443,6 +1772,115 @@ func Test_TransferDatabase_TargetStorageFromDifferentWorkspace_ReturnsBadRequest
 	assert.Contains(t, string(testResp.Body), "target storage does not belong to target workspace")
 }
 
+func Test_SaveBackupConfig_WithSystemStorage_CanBeUsedByAnyDatabase(t *testing.T) {
+	router := createTestRouterWithStorageForTransfer()
+
+	owner1 := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	owner2 := users_testing.CreateTestUser(users_enums.UserRoleMember)
+	admin := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
+
+	workspaceA := workspaces_testing.CreateTestWorkspace("Workspace A", owner1, router)
+	workspaceB := workspaces_testing.CreateTestWorkspace("Workspace B", owner2, router)
+
+	databaseA := createTestDatabaseViaAPI("Database A", workspaceA.ID, owner1.Token, router)
+
+	// Test 1: Regular storage from workspace B cannot be used by database in workspace A
+	regularStorageB := createTestStorage(workspaceB.ID)
+
+	timeOfDay := "04:00"
+	backupConfigWithRegularStorage := BackupConfig{
+		DatabaseID:       databaseA.ID,
+		IsBackupsEnabled: true,
+		StorePeriod:      period.PeriodWeek,
+		BackupInterval: &intervals.Interval{
+			Interval:  intervals.IntervalDaily,
+			TimeOfDay: &timeOfDay,
+		},
+		StorageID: &regularStorageB.ID,
+		Storage:   regularStorageB,
+		SendNotificationsOn: []BackupNotificationType{
+			NotificationBackupFailed,
+		},
+		IsRetryIfFailed:     true,
+		MaxFailedTriesCount: 3,
+		Encryption:          BackupEncryptionNone,
+	}
+
+	respRegular := test_utils.MakePostRequest(
+		t,
+		router,
+		"/api/v1/backup-configs/save",
+		"Bearer "+owner1.Token,
+		backupConfigWithRegularStorage,
+		http.StatusBadRequest,
+	)
+
+	assert.Contains(t, string(respRegular.Body), "storage does not belong to the same workspace")
+
+	// Test 2: System storage from workspace B CAN be used by database in workspace A
+	systemStorageB := &storages.Storage{
+		WorkspaceID:  workspaceB.ID,
+		Type:         storages.StorageTypeLocal,
+		Name:         "Test System Storage " + uuid.New().String(),
+		IsSystem:     true,
+		LocalStorage: &local_storage.LocalStorage{},
+	}
+
+	var savedSystemStorage storages.Storage
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		"/api/v1/storages",
+		"Bearer "+admin.Token,
+		*systemStorageB,
+		http.StatusOK,
+		&savedSystemStorage,
+	)
+
+	assert.True(t, savedSystemStorage.IsSystem)
+
+	backupConfigWithSystemStorage := BackupConfig{
+		DatabaseID:       databaseA.ID,
+		IsBackupsEnabled: true,
+		StorePeriod:      period.PeriodWeek,
+		BackupInterval: &intervals.Interval{
+			Interval:  intervals.IntervalDaily,
+			TimeOfDay: &timeOfDay,
+		},
+		StorageID: &savedSystemStorage.ID,
+		Storage:   &savedSystemStorage,
+		SendNotificationsOn: []BackupNotificationType{
+			NotificationBackupFailed,
+		},
+		IsRetryIfFailed:     true,
+		MaxFailedTriesCount: 3,
+		Encryption:          BackupEncryptionNone,
+	}
+
+	var savedConfig BackupConfig
+	test_utils.MakePostRequestAndUnmarshal(
+		t,
+		router,
+		"/api/v1/backup-configs/save",
+		"Bearer "+owner1.Token,
+		backupConfigWithSystemStorage,
+		http.StatusOK,
+		&savedConfig,
+	)
+
+	assert.Equal(t, databaseA.ID, savedConfig.DatabaseID)
+	assert.NotNil(t, savedConfig.StorageID)
+	assert.Equal(t, savedSystemStorage.ID, *savedConfig.StorageID)
+	assert.True(t, savedConfig.IsBackupsEnabled)
+
+	// Cleanup: database first (cascades to backup_config), then storages, then workspaces
+	databases.RemoveTestDatabase(databaseA)
+	storages.RemoveTestStorage(regularStorageB.ID)
+	storages.RemoveTestStorage(savedSystemStorage.ID)
+	workspaces_testing.RemoveTestWorkspace(workspaceA, router)
+	workspaces_testing.RemoveTestWorkspace(workspaceB, router)
+}
+
 func createTestDatabaseViaAPI(
 	name string,
 	workspaceID uuid.UUID,
@@ -1462,7 +1900,7 @@ func createTestDatabaseViaAPI(
 		Type:        databases.DatabaseTypePostgres,
 		Postgresql: &postgresql.PostgresqlDatabase{
 			Version:  tools.PostgresqlVersion16,
-			Host:     "localhost",
+			Host:     config.GetEnv().TestLocalhost,
 			Port:     port,
 			Username: "testuser",
 			Password: "testpassword",

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

@@ -1,10 +1,15 @@
 package backups_config
 
 import (
+	"sync"
+	"sync/atomic"
+
 	"databasus-backend/internal/features/databases"
 	"databasus-backend/internal/features/notifiers"
+	plans "databasus-backend/internal/features/plan"
 	"databasus-backend/internal/features/storages"
 	workspaces_services "databasus-backend/internal/features/workspaces/services"
+	"databasus-backend/internal/util/logger"
 )
 
 var backupConfigRepository = &BackupConfigRepository{}
@@ -14,6 +19,7 @@ var backupConfigService = &BackupConfigService{
 	storages.GetStorageService(),
 	notifiers.GetNotifierService(),
 	workspaces_services.GetWorkspaceService(),
+	plans.GetDatabasePlanService(),
 	nil,
 }
 var backupConfigController = &BackupConfigController{
@@ -28,6 +34,21 @@ 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

@@ -1,7 +1,9 @@
 package backups_config
 
 import (
+	"databasus-backend/internal/config"
 	"databasus-backend/internal/features/intervals"
+	plans "databasus-backend/internal/features/plan"
 	"databasus-backend/internal/features/storages"
 	"databasus-backend/internal/util/period"
 	"errors"
@@ -31,6 +33,11 @@ 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 {
@@ -70,7 +77,7 @@ func (b *BackupConfig) AfterFind(tx *gorm.DB) error {
 	return nil
 }
 
-func (b *BackupConfig) Validate() error {
+func (b *BackupConfig) Validate(plan *plans.DatabasePlan) error {
 	// Backup interval is required either as ID or as object
 	if b.BackupIntervalID == uuid.Nil && b.BackupInterval == nil {
 		return errors.New("backup interval is required")
@@ -89,20 +96,59 @@ func (b *BackupConfig) Validate() error {
 		return errors.New("encryption must be NONE or ENCRYPTED")
 	}
 
+	if config.GetEnv().IsCloud {
+		if b.Encryption != BackupEncryptionEncrypted {
+			return errors.New("encryption is mandatory for cloud storage")
+		}
+	}
+
+	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")
+	}
+
+	// Validate against plan limits
+	// Check storage period limit
+	if plan.MaxStoragePeriod != period.PeriodForever {
+		if b.StorePeriod.CompareTo(plan.MaxStoragePeriod) > 0 {
+			return errors.New("storage period exceeds plan limit")
+		}
+	}
+
+	// Check max backup size limit (0 in plan means unlimited)
+	if plan.MaxBackupSizeMB > 0 {
+		if b.MaxBackupSizeMB == 0 || b.MaxBackupSizeMB > plan.MaxBackupSizeMB {
+			return errors.New("max backup size exceeds plan limit")
+		}
+	}
+
+	// Check max total backups size limit (0 in plan means unlimited)
+	if plan.MaxBackupsTotalSizeMB > 0 {
+		if b.MaxBackupsTotalSizeMB == 0 ||
+			b.MaxBackupsTotalSizeMB > plan.MaxBackupsTotalSizeMB {
+			return errors.New("max total backups size exceeds plan limit")
+		}
+	}
+
 	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/backups/config/model_test.go

@@ -0,0 +1,391 @@
+package backups_config
+
+import (
+	"testing"
+
+	"databasus-backend/internal/features/intervals"
+	plans "databasus-backend/internal/features/plan"
+	"databasus-backend/internal/util/period"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_Validate_WhenStoragePeriodIsWeekAndPlanAllowsMonth_ValidationPasses(t *testing.T) {
+	config := createValidBackupConfig()
+	config.StorePeriod = period.PeriodWeek
+
+	plan := createUnlimitedPlan()
+	plan.MaxStoragePeriod = period.PeriodMonth
+
+	err := config.Validate(plan)
+	assert.NoError(t, err)
+}
+
+func Test_Validate_WhenStoragePeriodIsYearAndPlanAllowsMonth_ValidationFails(t *testing.T) {
+	config := createValidBackupConfig()
+	config.StorePeriod = period.PeriodYear
+
+	plan := createUnlimitedPlan()
+	plan.MaxStoragePeriod = period.PeriodMonth
+
+	err := config.Validate(plan)
+	assert.EqualError(t, err, "storage period exceeds plan limit")
+}
+
+func Test_Validate_WhenStoragePeriodIsForeverAndPlanAllowsForever_ValidationPasses(t *testing.T) {
+	config := createValidBackupConfig()
+	config.StorePeriod = period.PeriodForever
+
+	plan := createUnlimitedPlan()
+	plan.MaxStoragePeriod = period.PeriodForever
+
+	err := config.Validate(plan)
+	assert.NoError(t, err)
+}
+
+func Test_Validate_WhenStoragePeriodIsForeverAndPlanAllowsYear_ValidationFails(t *testing.T) {
+	config := createValidBackupConfig()
+	config.StorePeriod = period.PeriodForever
+
+	plan := createUnlimitedPlan()
+	plan.MaxStoragePeriod = period.PeriodYear
+
+	err := config.Validate(plan)
+	assert.EqualError(t, err, "storage period exceeds plan limit")
+}
+
+func Test_Validate_WhenStoragePeriodEqualsExactPlanLimit_ValidationPasses(t *testing.T) {
+	config := createValidBackupConfig()
+	config.StorePeriod = period.PeriodMonth
+
+	plan := createUnlimitedPlan()
+	plan.MaxStoragePeriod = period.PeriodMonth
+
+	err := config.Validate(plan)
+	assert.NoError(t, err)
+}
+
+func Test_Validate_WhenBackupSize100MBAndPlanAllows500MB_ValidationPasses(t *testing.T) {
+	config := createValidBackupConfig()
+	config.MaxBackupSizeMB = 100
+
+	plan := createUnlimitedPlan()
+	plan.MaxBackupSizeMB = 500
+
+	err := config.Validate(plan)
+	assert.NoError(t, err)
+}
+
+func Test_Validate_WhenBackupSize500MBAndPlanAllows100MB_ValidationFails(t *testing.T) {
+	config := createValidBackupConfig()
+	config.MaxBackupSizeMB = 500
+
+	plan := createUnlimitedPlan()
+	plan.MaxBackupSizeMB = 100
+
+	err := config.Validate(plan)
+	assert.EqualError(t, err, "max backup size exceeds plan limit")
+}
+
+func Test_Validate_WhenBackupSizeIsUnlimitedAndPlanAllowsUnlimited_ValidationPasses(t *testing.T) {
+	config := createValidBackupConfig()
+	config.MaxBackupSizeMB = 0
+
+	plan := createUnlimitedPlan()
+	plan.MaxBackupSizeMB = 0
+
+	err := config.Validate(plan)
+	assert.NoError(t, err)
+}
+
+func Test_Validate_WhenBackupSizeIsUnlimitedAndPlanHas500MBLimit_ValidationFails(t *testing.T) {
+	config := createValidBackupConfig()
+	config.MaxBackupSizeMB = 0
+
+	plan := createUnlimitedPlan()
+	plan.MaxBackupSizeMB = 500
+
+	err := config.Validate(plan)
+	assert.EqualError(t, err, "max backup size exceeds plan limit")
+}
+
+func Test_Validate_WhenBackupSizeEqualsExactPlanLimit_ValidationPasses(t *testing.T) {
+	config := createValidBackupConfig()
+	config.MaxBackupSizeMB = 500
+
+	plan := createUnlimitedPlan()
+	plan.MaxBackupSizeMB = 500
+
+	err := config.Validate(plan)
+	assert.NoError(t, err)
+}
+
+func Test_Validate_WhenTotalSize1GBAndPlanAllows5GB_ValidationPasses(t *testing.T) {
+	config := createValidBackupConfig()
+	config.MaxBackupsTotalSizeMB = 1000
+
+	plan := createUnlimitedPlan()
+	plan.MaxBackupsTotalSizeMB = 5000
+
+	err := config.Validate(plan)
+	assert.NoError(t, err)
+}
+
+func Test_Validate_WhenTotalSize5GBAndPlanAllows1GB_ValidationFails(t *testing.T) {
+	config := createValidBackupConfig()
+	config.MaxBackupsTotalSizeMB = 5000
+
+	plan := createUnlimitedPlan()
+	plan.MaxBackupsTotalSizeMB = 1000
+
+	err := config.Validate(plan)
+	assert.EqualError(t, err, "max total backups size exceeds plan limit")
+}
+
+func Test_Validate_WhenTotalSizeIsUnlimitedAndPlanAllowsUnlimited_ValidationPasses(t *testing.T) {
+	config := createValidBackupConfig()
+	config.MaxBackupsTotalSizeMB = 0
+
+	plan := createUnlimitedPlan()
+	plan.MaxBackupsTotalSizeMB = 0
+
+	err := config.Validate(plan)
+	assert.NoError(t, err)
+}
+
+func Test_Validate_WhenTotalSizeIsUnlimitedAndPlanHas1GBLimit_ValidationFails(t *testing.T) {
+	config := createValidBackupConfig()
+	config.MaxBackupsTotalSizeMB = 0
+
+	plan := createUnlimitedPlan()
+	plan.MaxBackupsTotalSizeMB = 1000
+
+	err := config.Validate(plan)
+	assert.EqualError(t, err, "max total backups size exceeds plan limit")
+}
+
+func Test_Validate_WhenTotalSizeEqualsExactPlanLimit_ValidationPasses(t *testing.T) {
+	config := createValidBackupConfig()
+	config.MaxBackupsTotalSizeMB = 5000
+
+	plan := createUnlimitedPlan()
+	plan.MaxBackupsTotalSizeMB = 5000
+
+	err := config.Validate(plan)
+	assert.NoError(t, err)
+}
+
+func Test_Validate_WhenAllLimitsAreUnlimitedInPlan_AnyConfigurationPasses(t *testing.T) {
+	config := createValidBackupConfig()
+	config.StorePeriod = period.PeriodForever
+	config.MaxBackupSizeMB = 0
+	config.MaxBackupsTotalSizeMB = 0
+
+	plan := createUnlimitedPlan()
+
+	err := config.Validate(plan)
+	assert.NoError(t, err)
+}
+
+func Test_Validate_WhenMultipleLimitsExceeded_ValidationFailsWithFirstError(t *testing.T) {
+	config := createValidBackupConfig()
+	config.StorePeriod = period.PeriodYear
+	config.MaxBackupSizeMB = 500
+	config.MaxBackupsTotalSizeMB = 5000
+
+	plan := createUnlimitedPlan()
+	plan.MaxStoragePeriod = period.PeriodMonth
+	plan.MaxBackupSizeMB = 100
+	plan.MaxBackupsTotalSizeMB = 1000
+
+	err := config.Validate(plan)
+	assert.Error(t, err)
+	assert.EqualError(t, err, "storage period exceeds plan limit")
+}
+
+func Test_Validate_WhenConfigHasInvalidIntervalButPlanIsValid_ValidationFailsOnInterval(
+	t *testing.T,
+) {
+	config := createValidBackupConfig()
+	config.BackupIntervalID = uuid.Nil
+	config.BackupInterval = nil
+
+	plan := createUnlimitedPlan()
+
+	err := config.Validate(plan)
+	assert.EqualError(t, err, "backup interval is required")
+}
+
+func Test_Validate_WhenIntervalIsMissing_ValidationFailsRegardlessOfPlan(t *testing.T) {
+	config := createValidBackupConfig()
+	config.BackupIntervalID = uuid.Nil
+	config.BackupInterval = nil
+
+	plan := createUnlimitedPlan()
+
+	err := config.Validate(plan)
+	assert.EqualError(t, err, "backup interval is required")
+}
+
+func Test_Validate_WhenRetryEnabledButMaxTriesIsZero_ValidationFailsRegardlessOfPlan(t *testing.T) {
+	config := createValidBackupConfig()
+	config.IsRetryIfFailed = true
+	config.MaxFailedTriesCount = 0
+
+	plan := createUnlimitedPlan()
+
+	err := config.Validate(plan)
+	assert.EqualError(t, err, "max failed tries count must be greater than 0")
+}
+
+func Test_Validate_WhenEncryptionIsInvalid_ValidationFailsRegardlessOfPlan(t *testing.T) {
+	config := createValidBackupConfig()
+	config.Encryption = "INVALID"
+
+	plan := createUnlimitedPlan()
+
+	err := config.Validate(plan)
+	assert.EqualError(t, err, "encryption must be NONE or ENCRYPTED")
+}
+
+func Test_Validate_WhenStoragePeriodIsEmpty_ValidationFails(t *testing.T) {
+	config := createValidBackupConfig()
+	config.StorePeriod = ""
+
+	plan := createUnlimitedPlan()
+
+	err := config.Validate(plan)
+	assert.EqualError(t, err, "store period is required")
+}
+
+func Test_Validate_WhenMaxBackupSizeIsNegative_ValidationFails(t *testing.T) {
+	config := createValidBackupConfig()
+	config.MaxBackupSizeMB = -100
+
+	plan := createUnlimitedPlan()
+
+	err := config.Validate(plan)
+	assert.EqualError(t, err, "max backup size must be non-negative")
+}
+
+func Test_Validate_WhenMaxTotalSizeIsNegative_ValidationFails(t *testing.T) {
+	config := createValidBackupConfig()
+	config.MaxBackupsTotalSizeMB = -1000
+
+	plan := createUnlimitedPlan()
+
+	err := config.Validate(plan)
+	assert.EqualError(t, err, "max backups total size must be non-negative")
+}
+
+func Test_Validate_WhenPlanLimitsAreAtBoundary_ValidationWorks(t *testing.T) {
+	tests := []struct {
+		name          string
+		configPeriod  period.Period
+		planPeriod    period.Period
+		configSize    int64
+		planSize      int64
+		configTotal   int64
+		planTotal     int64
+		shouldSucceed bool
+	}{
+		{
+			name:          "all values just under limit",
+			configPeriod:  period.PeriodWeek,
+			planPeriod:    period.PeriodMonth,
+			configSize:    99,
+			planSize:      100,
+			configTotal:   999,
+			planTotal:     1000,
+			shouldSucceed: true,
+		},
+		{
+			name:          "all values equal to limit",
+			configPeriod:  period.PeriodMonth,
+			planPeriod:    period.PeriodMonth,
+			configSize:    100,
+			planSize:      100,
+			configTotal:   1000,
+			planTotal:     1000,
+			shouldSucceed: true,
+		},
+		{
+			name:          "period just over limit",
+			configPeriod:  period.Period3Month,
+			planPeriod:    period.PeriodMonth,
+			configSize:    100,
+			planSize:      100,
+			configTotal:   1000,
+			planTotal:     1000,
+			shouldSucceed: false,
+		},
+		{
+			name:          "size just over limit",
+			configPeriod:  period.PeriodMonth,
+			planPeriod:    period.PeriodMonth,
+			configSize:    101,
+			planSize:      100,
+			configTotal:   1000,
+			planTotal:     1000,
+			shouldSucceed: false,
+		},
+		{
+			name:          "total size just over limit",
+			configPeriod:  period.PeriodMonth,
+			planPeriod:    period.PeriodMonth,
+			configSize:    100,
+			planSize:      100,
+			configTotal:   1001,
+			planTotal:     1000,
+			shouldSucceed: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			config := createValidBackupConfig()
+			config.StorePeriod = tt.configPeriod
+			config.MaxBackupSizeMB = tt.configSize
+			config.MaxBackupsTotalSizeMB = tt.configTotal
+
+			plan := createUnlimitedPlan()
+			plan.MaxStoragePeriod = tt.planPeriod
+			plan.MaxBackupSizeMB = tt.planSize
+			plan.MaxBackupsTotalSizeMB = tt.planTotal
+
+			err := config.Validate(plan)
+			if tt.shouldSucceed {
+				assert.NoError(t, err)
+			} else {
+				assert.Error(t, err)
+			}
+		})
+	}
+}
+
+func createValidBackupConfig() *BackupConfig {
+	intervalID := uuid.New()
+	return &BackupConfig{
+		DatabaseID:            uuid.New(),
+		IsBackupsEnabled:      true,
+		StorePeriod:           period.PeriodMonth,
+		BackupIntervalID:      intervalID,
+		BackupInterval:        &intervals.Interval{ID: intervalID},
+		SendNotificationsOn:   []BackupNotificationType{},
+		IsRetryIfFailed:       false,
+		MaxFailedTriesCount:   3,
+		Encryption:            BackupEncryptionNone,
+		MaxBackupSizeMB:       100,
+		MaxBackupsTotalSizeMB: 1000,
+	}
+}
+
+func createUnlimitedPlan() *plans.DatabasePlan {
+	return &plans.DatabasePlan{
+		DatabaseID:            uuid.New(),
+		MaxBackupSizeMB:       0,
+		MaxBackupsTotalSizeMB: 0,
+		MaxStoragePeriod:      period.PeriodForever,
+	}
+}

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

@@ -26,6 +26,12 @@ func Test_AttachNotifierFromSameWorkspace_SuccessfullyAttached(t *testing.T) {
 	database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
 	notifier := notifiers.CreateTestNotifier(workspace.ID)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		notifiers.RemoveTestNotifier(notifier)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+	}()
+
 	database.Notifiers = []notifiers.Notifier{*notifier}
 
 	var response databases.Database
@@ -55,6 +61,13 @@ func Test_AttachNotifierFromDifferentWorkspace_ReturnsForbidden(t *testing.T) {
 	workspace2 := workspaces_testing.CreateTestWorkspace("Workspace 2", owner2, router)
 	notifier := notifiers.CreateTestNotifier(workspace2.ID)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		notifiers.RemoveTestNotifier(notifier)
+		workspaces_testing.RemoveTestWorkspace(workspace1, router)
+		workspaces_testing.RemoveTestWorkspace(workspace2, router)
+	}()
+
 	database.Notifiers = []notifiers.Notifier{*notifier}
 
 	testResp := test_utils.MakePostRequest(
@@ -77,6 +90,12 @@ func Test_DeleteNotifierWithAttachedDatabases_CannotDelete(t *testing.T) {
 	database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
 	notifier := notifiers.CreateTestNotifier(workspace.ID)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		notifiers.RemoveTestNotifier(notifier)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+	}()
+
 	database.Notifiers = []notifiers.Notifier{*notifier}
 
 	var response databases.Database
@@ -114,6 +133,13 @@ func Test_TransferNotifierWithAttachedDatabase_CannotTransfer(t *testing.T) {
 	database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
 	notifier := notifiers.CreateTestNotifier(workspace.ID)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		notifiers.RemoveTestNotifier(notifier)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+		workspaces_testing.RemoveTestWorkspace(targetWorkspace, router)
+	}()
+
 	database.Notifiers = []notifiers.Notifier{*notifier}
 
 	var response databases.Database

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

@@ -6,10 +6,10 @@ import (
 	"databasus-backend/internal/features/databases"
 	"databasus-backend/internal/features/intervals"
 	"databasus-backend/internal/features/notifiers"
+	plans "databasus-backend/internal/features/plan"
 	"databasus-backend/internal/features/storages"
 	users_models "databasus-backend/internal/features/users/models"
 	workspaces_services "databasus-backend/internal/features/workspaces/services"
-	"databasus-backend/internal/util/period"
 
 	"github.com/google/uuid"
 )
@@ -20,6 +20,7 @@ type BackupConfigService struct {
 	storageService         *storages.StorageService
 	notifierService        *notifiers.NotifierService
 	workspaceService       *workspaces_services.WorkspaceService
+	databasePlanService    *plans.DatabasePlanService
 
 	dbStorageChangeListener BackupConfigStorageChangeListener
 }
@@ -45,7 +46,12 @@ func (s *BackupConfigService) SaveBackupConfigWithAuth(
 	user *users_models.User,
 	backupConfig *BackupConfig,
 ) (*BackupConfig, error) {
-	if err := backupConfig.Validate(); err != nil {
+	plan, err := s.databasePlanService.GetDatabasePlan(backupConfig.DatabaseID)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := backupConfig.Validate(plan); err != nil {
 		return nil, err
 	}
 
@@ -71,7 +77,7 @@ func (s *BackupConfigService) SaveBackupConfigWithAuth(
 		if err != nil {
 			return nil, err
 		}
-		if storage.WorkspaceID != *database.WorkspaceID {
+		if storage.WorkspaceID != *database.WorkspaceID && !storage.IsSystem {
 			return nil, errors.New("storage does not belong to the same workspace as the database")
 		}
 	}
@@ -82,7 +88,12 @@ func (s *BackupConfigService) SaveBackupConfigWithAuth(
 func (s *BackupConfigService) SaveBackupConfig(
 	backupConfig *BackupConfig,
 ) (*BackupConfig, error) {
-	if err := backupConfig.Validate(); err != nil {
+	plan, err := s.databasePlanService.GetDatabasePlan(backupConfig.DatabaseID)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := backupConfig.Validate(plan); err != nil {
 		return nil, err
 	}
 
@@ -120,6 +131,18 @@ func (s *BackupConfigService) GetBackupConfigByDbIdWithAuth(
 	return s.GetBackupConfigByDbId(databaseID)
 }
 
+func (s *BackupConfigService) GetDatabasePlan(
+	user *users_models.User,
+	databaseID uuid.UUID,
+) (*plans.DatabasePlan, error) {
+	_, err := s.databaseService.GetDatabase(user, databaseID)
+	if err != nil {
+		return nil, err
+	}
+
+	return s.databasePlanService.GetDatabasePlan(databaseID)
+}
+
 func (s *BackupConfigService) GetBackupConfigByDbId(
 	databaseID uuid.UUID,
 ) (*BackupConfig, error) {
@@ -194,12 +217,19 @@ func (s *BackupConfigService) CreateDisabledBackupConfig(databaseID uuid.UUID) e
 func (s *BackupConfigService) initializeDefaultConfig(
 	databaseID uuid.UUID,
 ) error {
+	plan, err := s.databasePlanService.GetDatabasePlan(databaseID)
+	if err != nil {
+		return err
+	}
+
 	timeOfDay := "04:00"
 
-	_, err := s.backupConfigRepository.Save(&BackupConfig{
-		DatabaseID:       databaseID,
-		IsBackupsEnabled: false,
-		StorePeriod:      period.PeriodWeek,
+	_, err = s.backupConfigRepository.Save(&BackupConfig{
+		DatabaseID:            databaseID,
+		IsBackupsEnabled:      false,
+		StorePeriod:           plan.MaxStoragePeriod,
+		MaxBackupSizeMB:       plan.MaxBackupSizeMB,
+		MaxBackupsTotalSizeMB: plan.MaxBackupsTotalSizeMB,
 		BackupInterval: &intervals.Interval{
 			Interval:  intervals.IntervalDaily,
 			TimeOfDay: &timeOfDay,

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

@@ -27,6 +27,12 @@ func Test_AttachStorageFromSameWorkspace_SuccessfullyAttached(t *testing.T) {
 	database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
 	storage := createTestStorage(workspace.ID)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		storages.RemoveTestStorage(storage.ID)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+	}()
+
 	timeOfDay := "04:00"
 	request := BackupConfig{
 		DatabaseID:       database.ID,
@@ -72,6 +78,13 @@ func Test_AttachStorageFromDifferentWorkspace_ReturnsForbidden(t *testing.T) {
 	workspace2 := workspaces_testing.CreateTestWorkspace("Workspace 2", owner2, router)
 	storage := createTestStorage(workspace2.ID)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		storages.RemoveTestStorage(storage.ID)
+		workspaces_testing.RemoveTestWorkspace(workspace1, router)
+		workspaces_testing.RemoveTestWorkspace(workspace2, router)
+	}()
+
 	timeOfDay := "04:00"
 	request := BackupConfig{
 		DatabaseID:       database.ID,
@@ -110,6 +123,12 @@ func Test_DeleteStorageWithAttachedDatabases_CannotDelete(t *testing.T) {
 	database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
 	storage := createTestStorage(workspace.ID)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		storages.RemoveTestStorage(storage.ID)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+	}()
+
 	timeOfDay := "04:00"
 	request := BackupConfig{
 		DatabaseID:       database.ID,
@@ -163,6 +182,13 @@ func Test_TransferStorageWithAttachedDatabase_CannotTransfer(t *testing.T) {
 	database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
 	storage := createTestStorage(workspace.ID)
 
+	defer func() {
+		databases.RemoveTestDatabase(database)
+		storages.RemoveTestStorage(storage.ID)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+		workspaces_testing.RemoveTestWorkspace(targetWorkspace, router)
+	}()
+
 	timeOfDay := "04:00"
 	request := BackupConfig{
 		DatabaseID:       database.ID,

backend/internal/features/databases/controller_test.go

@@ -25,80 +25,6 @@ import (
 	"databasus-backend/internal/util/tools"
 )
 
-func createTestRouter() *gin.Engine {
-	router := workspaces_testing.CreateTestRouter(
-		workspaces_controllers.GetWorkspaceController(),
-		workspaces_controllers.GetMembershipController(),
-		GetDatabaseController(),
-	)
-	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:     "localhost",
-		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:     "localhost",
-		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:         "localhost",
-		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
@@ -142,6 +68,7 @@ func Test_CreateDatabase_PermissionsEnforced(t *testing.T) {
 			router := createTestRouter()
 			owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 			workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+			defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
 			var testUserToken string
 			if tt.isGlobalAdmin {
@@ -180,6 +107,7 @@ func Test_CreateDatabase_PermissionsEnforced(t *testing.T) {
 			)
 
 			if tt.expectSuccess {
+				defer RemoveTestDatabase(&response)
 				assert.Equal(t, "Test Database", response.Name)
 				assert.NotEqual(t, uuid.Nil, response.ID)
 			} else {
@@ -193,6 +121,7 @@ func Test_CreateDatabase_WhenUserIsNotWorkspaceMember_ReturnsForbidden(t *testin
 	router := createTestRouter()
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+	defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
 	nonMember := users_testing.CreateTestUser(users_enums.UserRoleMember)
 
@@ -258,8 +187,10 @@ func Test_UpdateDatabase_PermissionsEnforced(t *testing.T) {
 			router := createTestRouter()
 			owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 			workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+			defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
 			database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
+			defer RemoveTestDatabase(database)
 
 			var testUserToken string
 			if tt.isGlobalAdmin {
@@ -305,8 +236,10 @@ func Test_UpdateDatabase_WhenUserIsNotWorkspaceMember_ReturnsForbidden(t *testin
 	router := createTestRouter()
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+	defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
 	database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
+	defer RemoveTestDatabase(database)
 
 	nonMember := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	database.Name = "Hacked Name"
@@ -366,6 +299,7 @@ func Test_DeleteDatabase_PermissionsEnforced(t *testing.T) {
 			router := createTestRouter()
 			owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 			workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+			defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
 			database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
 
@@ -396,6 +330,7 @@ func Test_DeleteDatabase_PermissionsEnforced(t *testing.T) {
 			)
 
 			if !tt.expectSuccess {
+				defer RemoveTestDatabase(database)
 				assert.Contains(t, string(testResp.Body), "insufficient permissions")
 			}
 		})
@@ -439,8 +374,10 @@ func Test_GetDatabase_PermissionsEnforced(t *testing.T) {
 			router := createTestRouter()
 			owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 			workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+			defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
 			database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
+			defer RemoveTestDatabase(database)
 
 			var testUser string
 			if tt.isGlobalAdmin {
@@ -517,9 +454,12 @@ func Test_GetDatabasesByWorkspace_PermissionsEnforced(t *testing.T) {
 			router := createTestRouter()
 			owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 			workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+			defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
-			createTestDatabaseViaAPI("Database 1", workspace.ID, owner.Token, router)
-			createTestDatabaseViaAPI("Database 2", workspace.ID, owner.Token, router)
+			db1 := createTestDatabaseViaAPI("Database 1", workspace.ID, owner.Token, router)
+			defer RemoveTestDatabase(db1)
+			db2 := createTestDatabaseViaAPI("Database 2", workspace.ID, owner.Token, router)
+			defer RemoveTestDatabase(db2)
 
 			var testUser string
 			if tt.isGlobalAdmin {
@@ -561,10 +501,14 @@ func Test_GetDatabasesByWorkspace_WhenMultipleDatabasesExist_ReturnsCorrectCount
 	router := createTestRouter()
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+	defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
-	createTestDatabaseViaAPI("Database 1", workspace.ID, owner.Token, router)
-	createTestDatabaseViaAPI("Database 2", workspace.ID, owner.Token, router)
-	createTestDatabaseViaAPI("Database 3", workspace.ID, owner.Token, router)
+	db1 := createTestDatabaseViaAPI("Database 1", workspace.ID, owner.Token, router)
+	defer RemoveTestDatabase(db1)
+	db2 := createTestDatabaseViaAPI("Database 2", workspace.ID, owner.Token, router)
+	defer RemoveTestDatabase(db2)
+	db3 := createTestDatabaseViaAPI("Database 3", workspace.ID, owner.Token, router)
+	defer RemoveTestDatabase(db3)
 
 	var response []Database
 	test_utils.MakeGetRequestAndUnmarshal(
@@ -583,14 +527,19 @@ func Test_GetDatabasesByWorkspace_EnsuresCrossWorkspaceIsolation(t *testing.T) {
 	router := createTestRouter()
 	owner1 := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace1 := workspaces_testing.CreateTestWorkspace("Workspace 1", owner1, router)
+	defer workspaces_testing.RemoveTestWorkspace(workspace1, router)
 
 	owner2 := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace2 := workspaces_testing.CreateTestWorkspace("Workspace 2", owner2, router)
+	defer workspaces_testing.RemoveTestWorkspace(workspace2, router)
 
-	createTestDatabaseViaAPI("Workspace1 DB1", workspace1.ID, owner1.Token, router)
-	createTestDatabaseViaAPI("Workspace1 DB2", workspace1.ID, owner1.Token, router)
+	workspace1Db1 := createTestDatabaseViaAPI("Workspace1 DB1", workspace1.ID, owner1.Token, router)
+	defer RemoveTestDatabase(workspace1Db1)
+	workspace1Db2 := createTestDatabaseViaAPI("Workspace1 DB2", workspace1.ID, owner1.Token, router)
+	defer RemoveTestDatabase(workspace1Db2)
 
-	createTestDatabaseViaAPI("Workspace2 DB1", workspace2.ID, owner2.Token, router)
+	workspace2Db1 := createTestDatabaseViaAPI("Workspace2 DB1", workspace2.ID, owner2.Token, router)
+	defer RemoveTestDatabase(workspace2Db1)
 
 	var workspace1Dbs []Database
 	test_utils.MakeGetRequestAndUnmarshal(
@@ -667,8 +616,10 @@ func Test_CopyDatabase_PermissionsEnforced(t *testing.T) {
 			router := createTestRouter()
 			owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 			workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+			defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
 			database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
+			defer RemoveTestDatabase(database)
 
 			var testUserToken string
 			if tt.isGlobalAdmin {
@@ -700,6 +651,7 @@ func Test_CopyDatabase_PermissionsEnforced(t *testing.T) {
 			)
 
 			if tt.expectSuccess {
+				defer RemoveTestDatabase(&response)
 				assert.NotEqual(t, database.ID, response.ID)
 				assert.Contains(t, response.Name, "(Copy)")
 			} else {
@@ -713,8 +665,10 @@ func Test_CopyDatabase_CopyStaysInSameWorkspace(t *testing.T) {
 	router := createTestRouter()
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+	defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
 	database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
+	defer RemoveTestDatabase(database)
 
 	var response Database
 	test_utils.MakePostRequestAndUnmarshal(
@@ -727,139 +681,14 @@ func Test_CopyDatabase_CopyStaysInSameWorkspace(t *testing.T) {
 		&response,
 	)
 
+	defer RemoveTestDatabase(&response)
+
 	assert.NotEqual(t, database.ID, response.ID)
 	assert.Equal(t, "Test Database (Copy)", response.Name)
 	assert.Equal(t, workspace.ID, *response.WorkspaceID)
 	assert.Equal(t, database.Type, response.Type)
 }
 
-func Test_TestConnection_PermissionsEnforced(t *testing.T) {
-	tests := []struct {
-		name                    string
-		isMember                bool
-		isGlobalAdmin           bool
-		expectAccessGranted     bool
-		expectedStatusCodeOnErr int
-	}{
-		{
-			name:                    "workspace member can test connection",
-			isMember:                true,
-			isGlobalAdmin:           false,
-			expectAccessGranted:     true,
-			expectedStatusCodeOnErr: http.StatusBadRequest,
-		},
-		{
-			name:                    "non-member cannot test connection",
-			isMember:                false,
-			isGlobalAdmin:           false,
-			expectAccessGranted:     false,
-			expectedStatusCodeOnErr: http.StatusBadRequest,
-		},
-		{
-			name:                    "global admin can test connection",
-			isMember:                false,
-			isGlobalAdmin:           true,
-			expectAccessGranted:     true,
-			expectedStatusCodeOnErr: http.StatusBadRequest,
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			router := createTestRouter()
-			owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
-			workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
-
-			database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
-
-			var testUser string
-			if tt.isGlobalAdmin {
-				admin := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
-				testUser = admin.Token
-			} else if tt.isMember {
-				testUser = owner.Token
-			} else {
-				nonMember := users_testing.CreateTestUser(users_enums.UserRoleMember)
-				testUser = nonMember.Token
-			}
-
-			w := workspaces_testing.MakeAPIRequest(
-				router,
-				"POST",
-				"/api/v1/databases/"+database.ID.String()+"/test-connection",
-				"Bearer "+testUser,
-				nil,
-			)
-
-			body := w.Body.String()
-
-			if tt.expectAccessGranted {
-				assert.True(
-					t,
-					w.Code == http.StatusOK ||
-						(w.Code == http.StatusBadRequest && strings.Contains(body, "connect")),
-					"Expected 200 OK or 400 with connection error, got %d: %s",
-					w.Code,
-					body,
-				)
-			} else {
-				assert.Equal(t, tt.expectedStatusCodeOnErr, w.Code)
-				assert.Contains(t, body, "insufficient permissions")
-			}
-		})
-	}
-}
-
-func createTestDatabaseViaAPI(
-	name string,
-	workspaceID uuid.UUID,
-	token string,
-	router *gin.Engine,
-) *Database {
-	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:     port,
-			Username: "testuser",
-			Password: "testpassword",
-			Database: &testDbName,
-			CpuCount: 1,
-		},
-	}
-
-	w := workspaces_testing.MakeAPIRequest(
-		router,
-		"POST",
-		"/api/v1/databases/create",
-		"Bearer "+token,
-		request,
-	)
-
-	if w.Code != http.StatusCreated {
-		panic(
-			fmt.Sprintf("Failed to create database. Status: %d, Body: %s", w.Code, w.Body.String()),
-		)
-	}
-
-	var database Database
-	if err := json.Unmarshal(w.Body.Bytes(), &database); err != nil {
-		panic(err)
-	}
-
-	return &database
-}
-
 func Test_CreateDatabase_PasswordIsEncryptedInDB(t *testing.T) {
 	router := createTestRouter()
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
@@ -1141,3 +970,207 @@ func Test_DatabaseSensitiveDataLifecycle_AllTypes(t *testing.T) {
 		})
 	}
 }
+
+func Test_TestConnection_PermissionsEnforced(t *testing.T) {
+	tests := []struct {
+		name                    string
+		isMember                bool
+		isGlobalAdmin           bool
+		expectAccessGranted     bool
+		expectedStatusCodeOnErr int
+	}{
+		{
+			name:                    "workspace member can test connection",
+			isMember:                true,
+			isGlobalAdmin:           false,
+			expectAccessGranted:     true,
+			expectedStatusCodeOnErr: http.StatusBadRequest,
+		},
+		{
+			name:                    "non-member cannot test connection",
+			isMember:                false,
+			isGlobalAdmin:           false,
+			expectAccessGranted:     false,
+			expectedStatusCodeOnErr: http.StatusBadRequest,
+		},
+		{
+			name:                    "global admin can test connection",
+			isMember:                false,
+			isGlobalAdmin:           true,
+			expectAccessGranted:     true,
+			expectedStatusCodeOnErr: http.StatusBadRequest,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			router := createTestRouter()
+			owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
+			workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+			defer workspaces_testing.RemoveTestWorkspace(workspace, router)
+
+			database := createTestDatabaseViaAPI("Test Database", workspace.ID, owner.Token, router)
+			defer RemoveTestDatabase(database)
+
+			var testUser string
+			if tt.isGlobalAdmin {
+				admin := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
+				testUser = admin.Token
+			} else if tt.isMember {
+				testUser = owner.Token
+			} else {
+				nonMember := users_testing.CreateTestUser(users_enums.UserRoleMember)
+				testUser = nonMember.Token
+			}
+
+			w := workspaces_testing.MakeAPIRequest(
+				router,
+				"POST",
+				"/api/v1/databases/"+database.ID.String()+"/test-connection",
+				"Bearer "+testUser,
+				nil,
+			)
+
+			body := w.Body.String()
+
+			if tt.expectAccessGranted {
+				assert.True(
+					t,
+					w.Code == http.StatusOK ||
+						(w.Code == http.StatusBadRequest && strings.Contains(body, "connect")),
+					"Expected 200 OK or 400 with connection error, got %d: %s",
+					w.Code,
+					body,
+				)
+			} else {
+				assert.Equal(t, tt.expectedStatusCodeOnErr, w.Code)
+				assert.Contains(t, body, "insufficient permissions")
+			}
+		})
+	}
+}
+
+func createTestDatabaseViaAPI(
+	name string,
+	workspaceID uuid.UUID,
+	token string,
+	router *gin.Engine,
+) *Database {
+	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:     config.GetEnv().TestLocalhost,
+			Port:     port,
+			Username: "testuser",
+			Password: "testpassword",
+			Database: &testDbName,
+			CpuCount: 1,
+		},
+	}
+
+	w := workspaces_testing.MakeAPIRequest(
+		router,
+		"POST",
+		"/api/v1/databases/create",
+		"Bearer "+token,
+		request,
+	)
+
+	if w.Code != http.StatusCreated {
+		panic(
+			fmt.Sprintf("Failed to create database. Status: %d, Body: %s", w.Code, w.Body.String()),
+		)
+	}
+
+	var database Database
+	if err := json.Unmarshal(w.Body.Bytes(), &database); err != nil {
+		panic(err)
+	}
+
+	return &database
+}
+
+func createTestRouter() *gin.Engine {
+	router := workspaces_testing.CreateTestRouter(
+		workspaces_controllers.GetWorkspaceController(),
+		workspaces_controllers.GetMembershipController(),
+		GetDatabaseController(),
+	)
+	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,
+		IsSrv:        false,
+		CpuCount:     1,
+	}
+}

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

@@ -515,9 +515,13 @@ func detectPrivileges(ctx context.Context, db *sql.DB, database string) (string,
 	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*\*`,
-		regexp.QuoteMeta(database),
+		escapedDbName,
 	)
 	dbPattern := regexp.MustCompile(dbPatternStr)
 	globalPattern := regexp.MustCompile(`(?i)ON\s+\*\s*\.\s*\*`)

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

@@ -694,6 +694,115 @@ func Test_TestConnection_DatabaseWithUnderscores_Success(t *testing.T) {
 	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
@@ -714,7 +823,7 @@ func connectToMariadbContainer(
 	}
 
 	dbName := "testdb"
-	host := "127.0.0.1"
+	host := config.GetEnv().TestLocalhost
 	username := "root"
 	password := "rootpassword"
 

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

@@ -26,12 +26,13 @@ type MongodbDatabase struct {
 	Version tools.MongodbVersion `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"`
+	Port         *int   `json:"port"         gorm:"type:int"`
 	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;not null"`
 	AuthDatabase string `json:"authDatabase" gorm:"type:text;not null;default:'admin'"`
 	IsHttps      bool   `json:"isHttps"      gorm:"type:boolean;default:false"`
+	IsSrv        bool   `json:"isSrv"        gorm:"column:is_srv;type:boolean;not null;default:false"`
 	CpuCount     int    `json:"cpuCount"     gorm:"column:cpu_count;type:int;not null;default:1"`
 }
 
@@ -43,9 +44,13 @@ func (m *MongodbDatabase) Validate() error {
 	if m.Host == "" {
 		return errors.New("host is required")
 	}
-	if m.Port == 0 {
-		return errors.New("port is required")
+
+	if !m.IsSrv {
+		if m.Port == nil || *m.Port == 0 {
+			return errors.New("port is required for standard connections")
+		}
 	}
+
 	if m.Username == "" {
 		return errors.New("username is required")
 	}
@@ -58,6 +63,7 @@ func (m *MongodbDatabase) Validate() error {
 	if m.CpuCount <= 0 {
 		return errors.New("cpu count must be greater than 0")
 	}
+
 	return nil
 }
 
@@ -125,6 +131,7 @@ func (m *MongodbDatabase) Update(incoming *MongodbDatabase) {
 	m.Database = incoming.Database
 	m.AuthDatabase = incoming.AuthDatabase
 	m.IsHttps = incoming.IsHttps
+	m.IsSrv = incoming.IsSrv
 	m.CpuCount = incoming.CpuCount
 
 	if incoming.Password != "" {
@@ -455,12 +462,29 @@ func (m *MongodbDatabase) buildConnectionURI(password string) string {
 		tlsParams = "&tls=true&tlsInsecure=true"
 	}
 
+	if m.IsSrv {
+		return fmt.Sprintf(
+			"mongodb+srv://%s:%s@%s/%s?authSource=%s&connectTimeoutMS=15000%s",
+			url.QueryEscape(m.Username),
+			url.QueryEscape(password),
+			m.Host,
+			m.Database,
+			authDB,
+			tlsParams,
+		)
+	}
+
+	port := 27017
+	if m.Port != nil {
+		port = *m.Port
+	}
+
 	return fmt.Sprintf(
 		"mongodb://%s:%s@%s:%d/%s?authSource=%s&connectTimeoutMS=15000%s",
 		url.QueryEscape(m.Username),
 		url.QueryEscape(password),
 		m.Host,
-		m.Port,
+		port,
 		m.Database,
 		authDB,
 		tlsParams,
@@ -479,12 +503,28 @@ func (m *MongodbDatabase) BuildMongodumpURI(password string) string {
 		tlsParams = "&tls=true&tlsInsecure=true"
 	}
 
+	if m.IsSrv {
+		return fmt.Sprintf(
+			"mongodb+srv://%s:%s@%s/?authSource=%s&connectTimeoutMS=15000%s",
+			url.QueryEscape(m.Username),
+			url.QueryEscape(password),
+			m.Host,
+			authDB,
+			tlsParams,
+		)
+	}
+
+	port := 27017
+	if m.Port != nil {
+		port = *m.Port
+	}
+
 	return fmt.Sprintf(
 		"mongodb://%s:%s@%s:%d/?authSource=%s&connectTimeoutMS=15000%s",
 		url.QueryEscape(m.Username),
 		url.QueryEscape(password),
 		m.Host,
-		m.Port,
+		port,
 		authDB,
 		tlsParams,
 	)

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

@@ -9,6 +9,7 @@ import (
 	"strconv"
 	"strings"
 	"testing"
+	"time"
 
 	"github.com/google/uuid"
 	"github.com/stretchr/testify/assert"
@@ -63,15 +64,17 @@ func Test_TestConnection_InsufficientPermissions_ReturnsError(t *testing.T) {
 
 			defer dropUserSafe(container.Client, limitedUsername, container.AuthDatabase)
 
+			port := container.Port
 			mongodbModel := &MongodbDatabase{
 				Version:      tc.version,
 				Host:         container.Host,
-				Port:         container.Port,
+				Port:         &port,
 				Username:     limitedUsername,
 				Password:     limitedPassword,
 				Database:     container.Database,
 				AuthDatabase: container.AuthDatabase,
 				IsHttps:      false,
+				IsSrv:        false,
 				CpuCount:     1,
 			}
 
@@ -132,15 +135,17 @@ func Test_TestConnection_SufficientPermissions_Success(t *testing.T) {
 
 			defer dropUserSafe(container.Client, backupUsername, container.AuthDatabase)
 
+			port := container.Port
 			mongodbModel := &MongodbDatabase{
 				Version:      tc.version,
 				Host:         container.Host,
-				Port:         container.Port,
+				Port:         &port,
 				Username:     backupUsername,
 				Password:     backupPassword,
 				Database:     container.Database,
 				AuthDatabase: container.AuthDatabase,
 				IsHttps:      false,
+				IsSrv:        false,
 				CpuCount:     1,
 			}
 
@@ -397,7 +402,7 @@ func connectToMongodbContainer(
 	}
 
 	dbName := "testdb"
-	host := "127.0.0.1"
+	host := config.GetEnv().TestLocalhost
 	username := "root"
 	password := "rootpassword"
 	authDatabase := "admin"
@@ -406,11 +411,18 @@ 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 {
@@ -434,15 +446,17 @@ func connectToMongodbContainer(
 }
 
 func createMongodbModel(container *MongodbContainer) *MongodbDatabase {
+	port := container.Port
 	return &MongodbDatabase{
 		Version:      container.Version,
 		Host:         container.Host,
-		Port:         container.Port,
+		Port:         &port,
 		Username:     container.Username,
 		Password:     container.Password,
 		Database:     container.Database,
 		AuthDatabase: container.AuthDatabase,
 		IsHttps:      false,
+		IsSrv:        false,
 		CpuCount:     1,
 	}
 }
@@ -481,3 +495,157 @@ func assertWriteDenied(t *testing.T, err error) {
 			strings.Contains(errStr, "permission denied"),
 		"Expected authorization error, got: %v", err)
 }
+
+func Test_BuildConnectionURI_WithSrvFormat_ReturnsCorrectUri(t *testing.T) {
+	port := 27017
+	model := &MongodbDatabase{
+		Host:         "cluster0.example.mongodb.net",
+		Port:         &port,
+		Username:     "testuser",
+		Password:     "testpass123",
+		Database:     "mydb",
+		AuthDatabase: "admin",
+		IsHttps:      false,
+		IsSrv:        true,
+	}
+
+	uri := model.buildConnectionURI("testpass123")
+
+	assert.Contains(t, uri, "mongodb+srv://")
+	assert.Contains(t, uri, "testuser")
+	assert.Contains(t, uri, "testpass123")
+	assert.Contains(t, uri, "cluster0.example.mongodb.net")
+	assert.Contains(t, uri, "/mydb")
+	assert.Contains(t, uri, "authSource=admin")
+	assert.Contains(t, uri, "connectTimeoutMS=15000")
+	assert.NotContains(t, uri, ":27017")
+}
+
+func Test_BuildConnectionURI_WithStandardFormat_ReturnsCorrectUri(t *testing.T) {
+	port := 27017
+	model := &MongodbDatabase{
+		Host:         "localhost",
+		Port:         &port,
+		Username:     "testuser",
+		Password:     "testpass123",
+		Database:     "mydb",
+		AuthDatabase: "admin",
+		IsHttps:      false,
+		IsSrv:        false,
+	}
+
+	uri := model.buildConnectionURI("testpass123")
+
+	assert.Contains(t, uri, "mongodb://")
+	assert.Contains(t, uri, "testuser")
+	assert.Contains(t, uri, "testpass123")
+	assert.Contains(t, uri, "localhost:27017")
+	assert.Contains(t, uri, "/mydb")
+	assert.Contains(t, uri, "authSource=admin")
+	assert.Contains(t, uri, "connectTimeoutMS=15000")
+	assert.NotContains(t, uri, "mongodb+srv://")
+}
+
+func Test_BuildConnectionURI_WithNullPort_UsesDefault(t *testing.T) {
+	model := &MongodbDatabase{
+		Host:         "localhost",
+		Port:         nil,
+		Username:     "testuser",
+		Password:     "testpass123",
+		Database:     "mydb",
+		AuthDatabase: "admin",
+		IsHttps:      false,
+		IsSrv:        false,
+	}
+
+	uri := model.buildConnectionURI("testpass123")
+
+	assert.Contains(t, uri, "localhost:27017")
+}
+
+func Test_BuildMongodumpURI_WithSrvFormat_ReturnsCorrectUri(t *testing.T) {
+	port := 27017
+	model := &MongodbDatabase{
+		Host:         "cluster0.example.mongodb.net",
+		Port:         &port,
+		Username:     "testuser",
+		Password:     "testpass123",
+		Database:     "mydb",
+		AuthDatabase: "admin",
+		IsHttps:      false,
+		IsSrv:        true,
+	}
+
+	uri := model.BuildMongodumpURI("testpass123")
+
+	assert.Contains(t, uri, "mongodb+srv://")
+	assert.Contains(t, uri, "testuser")
+	assert.Contains(t, uri, "testpass123")
+	assert.Contains(t, uri, "cluster0.example.mongodb.net")
+	assert.Contains(t, uri, "/?authSource=admin")
+	assert.Contains(t, uri, "connectTimeoutMS=15000")
+	assert.NotContains(t, uri, ":27017")
+	assert.NotContains(t, uri, "/mydb")
+}
+
+func Test_BuildMongodumpURI_WithStandardFormat_ReturnsCorrectUri(t *testing.T) {
+	port := 27017
+	model := &MongodbDatabase{
+		Host:         "localhost",
+		Port:         &port,
+		Username:     "testuser",
+		Password:     "testpass123",
+		Database:     "mydb",
+		AuthDatabase: "admin",
+		IsHttps:      false,
+		IsSrv:        false,
+	}
+
+	uri := model.BuildMongodumpURI("testpass123")
+
+	assert.Contains(t, uri, "mongodb://")
+	assert.Contains(t, uri, "testuser")
+	assert.Contains(t, uri, "testpass123")
+	assert.Contains(t, uri, "localhost:27017")
+	assert.Contains(t, uri, "/?authSource=admin")
+	assert.Contains(t, uri, "connectTimeoutMS=15000")
+	assert.NotContains(t, uri, "mongodb+srv://")
+	assert.NotContains(t, uri, "/mydb")
+}
+
+func Test_Validate_SrvConnection_AllowsNullPort(t *testing.T) {
+	model := &MongodbDatabase{
+		Host:         "cluster0.example.mongodb.net",
+		Port:         nil,
+		Username:     "testuser",
+		Password:     "testpass123",
+		Database:     "mydb",
+		AuthDatabase: "admin",
+		IsHttps:      false,
+		IsSrv:        true,
+		CpuCount:     1,
+	}
+
+	err := model.Validate()
+
+	assert.NoError(t, err)
+}
+
+func Test_Validate_StandardConnection_RequiresPort(t *testing.T) {
+	model := &MongodbDatabase{
+		Host:         "localhost",
+		Port:         nil,
+		Username:     "testuser",
+		Password:     "testpass123",
+		Database:     "mydb",
+		AuthDatabase: "admin",
+		IsHttps:      false,
+		IsSrv:        false,
+		CpuCount:     1,
+	}
+
+	err := model.Validate()
+
+	assert.Error(t, err)
+	assert.Contains(t, err.Error(), "port is required for standard connections")
+}

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

@@ -489,9 +489,13 @@ func detectPrivileges(ctx context.Context, db *sql.DB, database string) (string,
 	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*\*`,
-		regexp.QuoteMeta(database),
+		escapedDbName,
 	)
 	dbPattern := regexp.MustCompile(dbPatternStr)
 	globalPattern := regexp.MustCompile(`(?i)ON\s+\*\s*\.\s*\*`)

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

@@ -674,6 +674,112 @@ func Test_TestConnection_DatabaseWithUnderscores_Success(t *testing.T) {
 	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
@@ -694,7 +800,7 @@ func connectToMysqlContainer(
 	}
 
 	dbName := "testdb"
-	host := "127.0.0.1"
+	host := config.GetEnv().TestLocalhost
 	username := "root"
 	password := "rootpassword"
 

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"
 )
 
@@ -394,10 +395,13 @@ func (p *PostgresqlDatabase) IsUserReadOnly(
 //
 // 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
@@ -487,33 +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),
@@ -537,7 +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
@@ -562,7 +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(
@@ -591,7 +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
@@ -613,7 +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
@@ -635,7 +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)
@@ -851,7 +878,15 @@ func checkBackupPermissions(
 		}
 
 		if err != nil {
-			return fmt.Errorf("cannot check SELECT privileges: %w", err)
+			// 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")

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

@@ -599,6 +599,10 @@ func Test_CreateReadOnlyUser_DatabaseNameWithDash_Success(t *testing.T) {
 }
 
 func Test_CreateReadOnlyUser_Supabase_UserCanReadButNotWrite(t *testing.T) {
+	if config.GetEnv().IsSkipExternalResourcesTests {
+		t.Skip("Skipping Supabase test: IS_SKIP_EXTERNAL_RESOURCES_TESTS is true")
+	}
+
 	env := config.GetEnv()
 
 	if env.TestSupabaseHost == "" {
@@ -705,6 +709,344 @@ func Test_CreateReadOnlyUser_Supabase_UserCanReadButNotWrite(t *testing.T) {
 	assert.Contains(t, err.Error(), "permission denied")
 }
 
+func Test_CreateReadOnlyUser_WithPublicSchema_Success(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 public_schema_test CASCADE;
+				CREATE TABLE public_schema_test (
+					id SERIAL PRIMARY KEY,
+					data TEXT NOT NULL
+				);
+				INSERT INTO public_schema_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, privileges, err := readOnlyModel.IsUserReadOnly(
+				ctx,
+				logger,
+				nil,
+				uuid.New(),
+			)
+			assert.NoError(t, err)
+			assert.True(t, isReadOnly, "User should be read-only")
+			assert.Empty(t, privileges, "Read-only user should have no write privileges")
+
+			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 public_schema_test")
+			assert.NoError(t, err)
+			assert.Equal(t, 2, count)
+
+			_, err = readOnlyConn.Exec(
+				"INSERT INTO public_schema_test (data) VALUES ('should-fail')",
+			)
+			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")
+
+			_, 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_CreateReadOnlyUser_WithoutPublicSchema_Success(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 SCHEMA IF EXISTS public CASCADE;
+				DROP SCHEMA IF EXISTS app_schema CASCADE;
+				DROP SCHEMA IF EXISTS data_schema CASCADE;
+				CREATE SCHEMA app_schema;
+				CREATE SCHEMA data_schema;
+				CREATE TABLE app_schema.users (
+					id SERIAL PRIMARY KEY,
+					username TEXT NOT NULL
+				);
+				CREATE TABLE data_schema.records (
+					id SERIAL PRIMARY KEY,
+					info TEXT NOT NULL
+				);
+				INSERT INTO app_schema.users (username) VALUES ('user1'), ('user2');
+				INSERT INTO data_schema.records (info) VALUES ('record1'), ('record2');
+			`)
+			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, "CreateReadOnlyUser should succeed without public schema")
+			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, privileges, err := readOnlyModel.IsUserReadOnly(
+				ctx,
+				logger,
+				nil,
+				uuid.New(),
+			)
+			assert.NoError(t, err)
+			assert.True(t, isReadOnly, "User should be read-only")
+			assert.Empty(t, privileges, "Read-only user should have no write privileges")
+
+			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 userCount int
+			err = readOnlyConn.Get(&userCount, "SELECT COUNT(*) FROM app_schema.users")
+			assert.NoError(t, err)
+			assert.Equal(t, 2, userCount)
+
+			var recordCount int
+			err = readOnlyConn.Get(&recordCount, "SELECT COUNT(*) FROM data_schema.records")
+			assert.NoError(t, err)
+			assert.Equal(t, 2, recordCount)
+
+			_, err = readOnlyConn.Exec(
+				"INSERT INTO app_schema.users (username) VALUES ('should-fail')",
+			)
+			assert.Error(t, err)
+			assert.Contains(t, err.Error(), "permission denied")
+
+			_, err = readOnlyConn.Exec("CREATE TABLE app_schema.hack_table (id INT)")
+			assert.Error(t, err)
+			assert.Contains(t, err.Error(), "permission denied")
+
+			_, err = readOnlyConn.Exec("CREATE TABLE data_schema.hack_table (id INT)")
+			assert.Error(t, err)
+			assert.Contains(t, err.Error(), "permission denied")
+
+			_, 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 IF EXISTS app_schema CASCADE;
+				DROP SCHEMA IF EXISTS data_schema CASCADE;
+				CREATE SCHEMA IF NOT EXISTS public;
+			`)
+			assert.NoError(t, err)
+		})
+	}
+}
+
+func Test_CreateReadOnlyUser_PublicSchemaExistsButNoPermissions_ReturnsError(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()
+
+			limitedAdminUsername := fmt.Sprintf("limited_admin_%s", uuid.New().String()[:8])
+			limitedAdminPassword := "limited_password_123"
+
+			_, err := container.DB.Exec(`
+				CREATE SCHEMA IF NOT EXISTS public;
+				DROP TABLE IF EXISTS public.permission_test_table CASCADE;
+				CREATE TABLE public.permission_test_table (
+					id SERIAL PRIMARY KEY,
+					data TEXT NOT NULL
+				);
+				INSERT INTO public.permission_test_table (data) VALUES ('test1');
+			`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(`GRANT CREATE ON SCHEMA public TO PUBLIC`)
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				`CREATE USER "%s" WITH PASSWORD '%s' LOGIN CREATEROLE`,
+				limitedAdminUsername,
+				limitedAdminPassword,
+			))
+			assert.NoError(t, err)
+
+			_, err = container.DB.Exec(fmt.Sprintf(
+				`GRANT CONNECT ON DATABASE "%s" TO "%s"`,
+				container.Database,
+				limitedAdminUsername,
+			))
+			assert.NoError(t, err)
+
+			defer func() {
+				_, _ = container.DB.Exec(
+					fmt.Sprintf(`DROP OWNED BY "%s" CASCADE`, limitedAdminUsername),
+				)
+				_, _ = container.DB.Exec(
+					fmt.Sprintf(`DROP USER IF EXISTS "%s"`, limitedAdminUsername),
+				)
+				_, _ = container.DB.Exec(`REVOKE CREATE ON SCHEMA public FROM PUBLIC`)
+			}()
+
+			limitedAdminDSN := fmt.Sprintf(
+				"host=%s port=%d user=%s password=%s dbname=%s sslmode=disable",
+				container.Host,
+				container.Port,
+				limitedAdminUsername,
+				limitedAdminPassword,
+				container.Database,
+			)
+			limitedAdminConn, err := sqlx.Connect("postgres", limitedAdminDSN)
+			assert.NoError(t, err)
+			defer limitedAdminConn.Close()
+
+			pgModel := &PostgresqlDatabase{
+				Version:  tools.GetPostgresqlVersionEnum(tc.version),
+				Host:     container.Host,
+				Port:     container.Port,
+				Username: limitedAdminUsername,
+				Password: limitedAdminPassword,
+				Database: &container.Database,
+				IsHttps:  false,
+			}
+
+			logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+			ctx := context.Background()
+
+			username, password, err := pgModel.CreateReadOnlyUser(ctx, logger, nil, uuid.New())
+			assert.Error(
+				t,
+				err,
+				"CreateReadOnlyUser should fail when admin lacks permissions to secure public schema",
+			)
+			if err != nil {
+				errorMsg := err.Error()
+				hasExpectedError := strings.Contains(
+					errorMsg,
+					"failed to revoke CREATE from PUBLIC on existing public schema",
+				) ||
+					strings.Contains(errorMsg, "permission denied for schema public") ||
+					strings.Contains(errorMsg, "failed to grant")
+				assert.True(
+					t,
+					hasExpectedError,
+					"Error should indicate permission issues with public schema, got: %s",
+					errorMsg,
+				)
+			}
+			assert.Empty(t, username)
+			assert.Empty(t, password)
+		})
+	}
+}
+
 func Test_Validate_WhenLocalhostAndDatabasus_ReturnsError(t *testing.T) {
 	testCases := []struct {
 		name     string
@@ -981,7 +1323,7 @@ func connectToPostgresContainer(t *testing.T, port string) *PostgresContainer {
 	dbName := "testdb"
 	password := "testpassword"
 	username := "testuser"
-	host := "localhost"
+	host := config.GetEnv().TestLocalhost
 
 	portInt, err := strconv.Atoi(port)
 	assert.NoError(t, err)

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/model.go

@@ -1,6 +1,7 @@
 package databases
 
 import (
+	"context"
 	"databasus-backend/internal/features/databases/databases/mariadb"
 	"databasus-backend/internal/features/databases/databases/mongodb"
 	"databasus-backend/internal/features/databases/databases/mysql"
@@ -84,6 +85,25 @@ func (d *Database) TestConnection(
 	return d.getSpecificDatabase().TestConnection(logger, encryptor, d.ID)
 }
 
+func (d *Database) IsUserReadOnly(
+	ctx context.Context,
+	logger *slog.Logger,
+	encryptor encryption.FieldEncryptor,
+) (bool, []string, error) {
+	switch d.Type {
+	case DatabaseTypePostgres:
+		return d.Postgresql.IsUserReadOnly(ctx, logger, encryptor, d.ID)
+	case DatabaseTypeMysql:
+		return d.Mysql.IsUserReadOnly(ctx, logger, encryptor, d.ID)
+	case DatabaseTypeMariadb:
+		return d.Mariadb.IsUserReadOnly(ctx, logger, encryptor, d.ID)
+	case DatabaseTypeMongodb:
+		return d.Mongodb.IsUserReadOnly(ctx, logger, encryptor, d.ID)
+	default:
+		return false, nil, errors.New("read-only check not supported for this database type")
+	}
+}
+
 func (d *Database) HideSensitiveData() {
 	d.getSpecificDatabase().HideSensitiveData()
 }

backend/internal/features/databases/service.go

@@ -7,6 +7,7 @@ import (
 	"log/slog"
 	"time"
 
+	"databasus-backend/internal/config"
 	audit_logs "databasus-backend/internal/features/audit_logs"
 	"databasus-backend/internal/features/databases/databases/mariadb"
 	"databasus-backend/internal/features/databases/databases/mongodb"
@@ -86,6 +87,23 @@ func (s *DatabaseService) CreateDatabase(
 		return nil, fmt.Errorf("failed to auto-detect database data: %w", err)
 	}
 
+	if config.GetEnv().IsCloud {
+		ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
+		defer cancel()
+
+		isReadOnly, permissions, err := database.IsUserReadOnly(ctx, s.logger, s.fieldEncryptor)
+		if err != nil {
+			return nil, fmt.Errorf("failed to verify user permissions: %w", err)
+		}
+
+		if !isReadOnly {
+			return nil, fmt.Errorf(
+				"in cloud mode, only read-only database users are allowed (user has permissions: %v)",
+				permissions,
+			)
+		}
+	}
+
 	if err := database.EncryptSensitiveFields(s.fieldEncryptor); err != nil {
 		return nil, fmt.Errorf("failed to encrypt sensitive fields: %w", err)
 	}
@@ -153,6 +171,27 @@ func (s *DatabaseService) UpdateDatabase(
 		return fmt.Errorf("failed to auto-detect database data: %w", err)
 	}
 
+	if config.GetEnv().IsCloud {
+		ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
+		defer cancel()
+
+		isReadOnly, permissions, err := existingDatabase.IsUserReadOnly(
+			ctx,
+			s.logger,
+			s.fieldEncryptor,
+		)
+		if err != nil {
+			return fmt.Errorf("failed to verify user permissions: %w", err)
+		}
+
+		if !isReadOnly {
+			return fmt.Errorf(
+				"in cloud mode, only read-only database users are allowed (user has permissions: %v)",
+				permissions,
+			)
+		}
+	}
+
 	if err := existingDatabase.EncryptSensitiveFields(s.fieldEncryptor); err != nil {
 		return fmt.Errorf("failed to encrypt sensitive fields: %w", err)
 	}
@@ -649,38 +688,7 @@ func (s *DatabaseService) IsUserReadOnly(
 	ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
 	defer cancel()
 
-	switch usingDatabase.Type {
-	case DatabaseTypePostgres:
-		return usingDatabase.Postgresql.IsUserReadOnly(
-			ctx,
-			s.logger,
-			s.fieldEncryptor,
-			usingDatabase.ID,
-		)
-	case DatabaseTypeMysql:
-		return usingDatabase.Mysql.IsUserReadOnly(
-			ctx,
-			s.logger,
-			s.fieldEncryptor,
-			usingDatabase.ID,
-		)
-	case DatabaseTypeMariadb:
-		return usingDatabase.Mariadb.IsUserReadOnly(
-			ctx,
-			s.logger,
-			s.fieldEncryptor,
-			usingDatabase.ID,
-		)
-	case DatabaseTypeMongodb:
-		return usingDatabase.Mongodb.IsUserReadOnly(
-			ctx,
-			s.logger,
-			s.fieldEncryptor,
-			usingDatabase.ID,
-		)
-	default:
-		return false, nil, errors.New("read-only check not supported for this database type")
-	}
+	return usingDatabase.IsUserReadOnly(ctx, s.logger, s.fieldEncryptor)
 }
 
 func (s *DatabaseService) CreateReadOnlyUser(

backend/internal/features/databases/testing.go

@@ -10,6 +10,7 @@ import (
 	"databasus-backend/internal/features/databases/databases/postgresql"
 	"databasus-backend/internal/features/notifiers"
 	"databasus-backend/internal/features/storages"
+	"databasus-backend/internal/storage"
 	"databasus-backend/internal/util/tools"
 
 	"github.com/google/uuid"
@@ -25,7 +26,7 @@ func GetTestPostgresConfig() *postgresql.PostgresqlDatabase {
 	testDbName := "testdb"
 	return &postgresql.PostgresqlDatabase{
 		Version:  tools.PostgresqlVersion16,
-		Host:     "localhost",
+		Host:     config.GetEnv().TestLocalhost,
 		Port:     port,
 		Username: "testuser",
 		Password: "testpassword",
@@ -48,7 +49,7 @@ func GetTestMariadbConfig() *mariadb.MariadbDatabase {
 	testDbName := "testdb"
 	return &mariadb.MariadbDatabase{
 		Version:  tools.MariadbVersion1011,
-		Host:     "localhost",
+		Host:     config.GetEnv().TestLocalhost,
 		Port:     port,
 		Username: "testuser",
 		Password: "testpassword",
@@ -69,13 +70,14 @@ func GetTestMongodbConfig() *mongodb.MongodbDatabase {
 
 	return &mongodb.MongodbDatabase{
 		Version:      tools.MongodbVersion7,
-		Host:         "localhost",
-		Port:         port,
+		Host:         config.GetEnv().TestLocalhost,
+		Port:         &port,
 		Username:     "root",
 		Password:     "rootpassword",
 		Database:     "testdb",
 		AuthDatabase: "admin",
 		IsHttps:      false,
+		IsSrv:        false,
 		CpuCount:     1,
 	}
 }
@@ -104,6 +106,19 @@ func CreateTestDatabase(
 }
 
 func RemoveTestDatabase(database *Database) {
+	// Delete backups and backup configs associated with this database
+	// We hardcode SQL here because we cannot call backups feature due to DI inversion
+	// (databases package cannot import backups package as backups already imports databases)
+	db := storage.GetDb()
+
+	if err := db.Exec("DELETE FROM backups WHERE database_id = ?", database.ID).Error; err != nil {
+		panic(fmt.Sprintf("failed to delete backups: %v", err))
+	}
+
+	if err := db.Exec("DELETE FROM backup_configs WHERE database_id = ?", database.ID).Error; err != nil {
+		panic(fmt.Sprintf("failed to delete backup config: %v", err))
+	}
+
 	err := databaseRepository.Delete(database.ID)
 	if err != nil {
 		panic(err)

backend/internal/features/disk/service.go

@@ -12,6 +12,15 @@ import (
 type DiskService struct{}
 
 func (s *DiskService) GetDiskUsage() (*DiskUsage, error) {
+	if config.GetEnv().IsCloud {
+		return &DiskUsage{
+			Platform:        PlatformLinux,
+			TotalSpaceBytes: 100,
+			UsedSpaceBytes:  0,
+			FreeSpaceBytes:  100,
+		}, nil
+	}
+
 	platform := s.detectPlatform()
 
 	var path string

backend/internal/features/email/di.go

@@ -0,0 +1,22 @@
+package email
+
+import (
+	"databasus-backend/internal/config"
+	"databasus-backend/internal/util/logger"
+)
+
+var env = config.GetEnv()
+var log = logger.GetLogger()
+
+var emailSMTPSender = &EmailSMTPSender{
+	log,
+	env.SMTPHost,
+	env.SMTPPort,
+	env.SMTPUser,
+	env.SMTPPassword,
+	env.SMTPHost != "" && env.SMTPPort != 0,
+}
+
+func GetEmailSMTPSender() *EmailSMTPSender {
+	return emailSMTPSender
+}

backend/internal/features/email/email.go

@@ -0,0 +1,245 @@
+package email
+
+import (
+	"crypto/tls"
+	"fmt"
+	"log/slog"
+	"mime"
+	"net"
+	"net/smtp"
+	"time"
+)
+
+const (
+	ImplicitTLSPort  = 465
+	DefaultTimeout   = 5 * time.Second
+	DefaultHelloName = "localhost"
+	MIMETypeHTML     = "text/html"
+	MIMECharsetUTF8  = "UTF-8"
+)
+
+type EmailSMTPSender struct {
+	logger       *slog.Logger
+	smtpHost     string
+	smtpPort     int
+	smtpUser     string
+	smtpPassword string
+	isConfigured bool
+}
+
+func (s *EmailSMTPSender) SendEmail(to, subject, body string) error {
+	if !s.isConfigured {
+		s.logger.Warn("Skipping email send, SMTP not initialized", "to", to, "subject", subject)
+		return nil
+	}
+
+	from := s.smtpUser
+	if from == "" {
+		from = "noreply@" + s.smtpHost
+	}
+
+	emailContent := s.buildEmailContent(to, subject, body, from)
+	isAuthRequired := s.smtpUser != "" && s.smtpPassword != ""
+
+	if s.smtpPort == ImplicitTLSPort {
+		return s.sendImplicitTLS(to, from, emailContent, isAuthRequired)
+	}
+
+	return s.sendStartTLS(to, from, emailContent, isAuthRequired)
+}
+
+func (s *EmailSMTPSender) buildEmailContent(to, subject, body, from string) []byte {
+	// Encode Subject header using RFC 2047 to avoid SMTPUTF8 requirement
+	encodedSubject := encodeRFC2047(subject)
+	subjectHeader := fmt.Sprintf("Subject: %s\r\n", encodedSubject)
+	dateHeader := fmt.Sprintf("Date: %s\r\n", time.Now().UTC().Format(time.RFC1123Z))
+
+	mimeHeaders := fmt.Sprintf(
+		"MIME-version: 1.0;\nContent-Type: %s; charset=\"%s\";\n\n",
+		MIMETypeHTML,
+		MIMECharsetUTF8,
+	)
+
+	// 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", to)
+
+	return []byte(fromHeader + toHeader + subjectHeader + dateHeader + mimeHeaders + body)
+}
+
+func (s *EmailSMTPSender) sendImplicitTLS(
+	to, from string,
+	emailContent []byte,
+	isAuthRequired bool,
+) error {
+	createClient := func() (*smtp.Client, func(), error) {
+		return s.createImplicitTLSClient()
+	}
+
+	client, cleanup, err := s.authenticateWithRetry(createClient, isAuthRequired)
+	if err != nil {
+		return err
+	}
+	defer cleanup()
+
+	return s.sendEmail(client, to, from, emailContent)
+}
+
+func (s *EmailSMTPSender) sendStartTLS(
+	to, from string,
+	emailContent []byte,
+	isAuthRequired bool,
+) error {
+	createClient := func() (*smtp.Client, func(), error) {
+		return s.createStartTLSClient()
+	}
+
+	client, cleanup, err := s.authenticateWithRetry(createClient, isAuthRequired)
+	if err != nil {
+		return err
+	}
+	defer cleanup()
+
+	return s.sendEmail(client, to, from, emailContent)
+}
+
+func (s *EmailSMTPSender) createImplicitTLSClient() (*smtp.Client, func(), error) {
+	addr := net.JoinHostPort(s.smtpHost, fmt.Sprintf("%d", s.smtpPort))
+	tlsConfig := &tls.Config{ServerName: s.smtpHost}
+	dialer := &net.Dialer{Timeout: DefaultTimeout}
+
+	conn, err := tls.DialWithDialer(dialer, "tcp", addr, tlsConfig)
+	if err != nil {
+		return nil, nil, fmt.Errorf("failed to connect to SMTP server: %w", err)
+	}
+
+	client, err := smtp.NewClient(conn, s.smtpHost)
+	if err != nil {
+		_ = conn.Close()
+		return nil, nil, fmt.Errorf("failed to create SMTP client: %w", err)
+	}
+
+	return client, func() { _ = client.Quit() }, nil
+}
+
+func (s *EmailSMTPSender) createStartTLSClient() (*smtp.Client, func(), error) {
+	addr := net.JoinHostPort(s.smtpHost, fmt.Sprintf("%d", s.smtpPort))
+	dialer := &net.Dialer{Timeout: DefaultTimeout}
+
+	conn, err := dialer.Dial("tcp", addr)
+	if err != nil {
+		return nil, nil, fmt.Errorf("failed to connect to SMTP server: %w", err)
+	}
+
+	client, err := smtp.NewClient(conn, s.smtpHost)
+	if err != nil {
+		_ = conn.Close()
+		return nil, nil, fmt.Errorf("failed to create SMTP client: %w", err)
+	}
+
+	if err := client.Hello(DefaultHelloName); err != nil {
+		_ = client.Quit()
+		_ = conn.Close()
+		return nil, nil, fmt.Errorf("SMTP hello failed: %w", err)
+	}
+
+	if ok, _ := client.Extension("STARTTLS"); ok {
+		if err := client.StartTLS(&tls.Config{ServerName: s.smtpHost}); err != nil {
+			_ = client.Quit()
+			_ = conn.Close()
+			return nil, nil, fmt.Errorf("STARTTLS failed: %w", err)
+		}
+	}
+
+	return client, func() { _ = client.Quit() }, nil
+}
+
+func (s *EmailSMTPSender) authenticateWithRetry(
+	createClient func() (*smtp.Client, func(), error),
+	isAuthRequired bool,
+) (*smtp.Client, func(), error) {
+	client, cleanup, err := createClient()
+	if err != nil {
+		return nil, nil, err
+	}
+
+	if !isAuthRequired {
+		return client, cleanup, nil
+	}
+
+	// Try PLAIN auth first
+	plainAuth := smtp.PlainAuth("", s.smtpUser, s.smtpPassword, s.smtpHost)
+	if err := client.Auth(plainAuth); err == nil {
+		return client, cleanup, nil
+	}
+
+	// PLAIN auth failed, connection may be closed - recreate and try LOGIN auth
+	cleanup()
+
+	client, cleanup, err = createClient()
+	if err != nil {
+		return nil, nil, err
+	}
+
+	loginAuth := &loginAuth{username: s.smtpUser, password: s.smtpPassword}
+	if err := client.Auth(loginAuth); err != nil {
+		cleanup()
+		return nil, nil, fmt.Errorf("SMTP authentication failed: %w", err)
+	}
+
+	return client, cleanup, nil
+}
+
+func (s *EmailSMTPSender) sendEmail(client *smtp.Client, to, from string, content []byte) error {
+	if err := client.Mail(from); err != nil {
+		return fmt.Errorf("failed to set sender: %w", err)
+	}
+
+	if err := client.Rcpt(to); err != nil {
+		return fmt.Errorf("failed to set recipient: %w", err)
+	}
+
+	writer, err := client.Data()
+	if err != nil {
+		return fmt.Errorf("failed to get data writer: %w", err)
+	}
+
+	if _, err = writer.Write(content); err != nil {
+		return fmt.Errorf("failed to write email content: %w", err)
+	}
+
+	if err = writer.Close(); err != nil {
+		return fmt.Errorf("failed to close data writer: %w", err)
+	}
+
+	return nil
+}
+
+func encodeRFC2047(s string) string {
+	return mime.QEncoding.Encode("UTF-8", s)
+}
+
+type loginAuth struct {
+	username string
+	password string
+}
+
+func (a *loginAuth) Start(server *smtp.ServerInfo) (string, []byte, error) {
+	return "LOGIN", []byte{}, nil
+}
+
+func (a *loginAuth) Next(fromServer []byte, more bool) ([]byte, error) {
+	if more {
+		switch string(fromServer) {
+		case "Username:", "User Name\x00":
+			return []byte(a.username), nil
+		case "Password:", "Password\x00":
+			return []byte(a.password), nil
+		default:
+			return []byte(a.username), nil
+		}
+	}
+	return nil, nil
+}

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

@@ -2,30 +2,47 @@ package healthcheck_attempt
 
 import (
 	"context"
-	healthcheck_config "databasus-backend/internal/features/healthcheck/config"
+	"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(ctx context.Context) {
-	// first healthcheck immediately
-	s.checkDatabases()
+	wasAlreadyRun := s.hasRun.Load()
 
-	ticker := time.NewTicker(time.Minute)
-	defer ticker.Stop()
-	for {
-		select {
-		case <-ctx.Done():
-			return
-		case <-ticker.C:
-			s.checkDatabases()
+	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

@@ -144,6 +144,10 @@ func Test_GetAttemptsByDatabase_PermissionsEnforced(t *testing.T) {
 				)
 				assert.Contains(t, string(testResp.Body), "forbidden")
 			}
+
+			// Cleanup
+			databases.RemoveTestDatabase(database)
+			workspaces_testing.RemoveTestWorkspace(workspace, router)
 		})
 	}
 }
@@ -181,6 +185,10 @@ func Test_GetAttemptsByDatabase_FiltersByAfterDate(t *testing.T) {
 	for _, attempt := range response {
 		assert.True(t, attempt.CreatedAt.After(afterDate) || attempt.CreatedAt.Equal(afterDate))
 	}
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func Test_GetAttemptsByDatabase_ReturnsEmptyListForNewDatabase(t *testing.T) {
@@ -201,6 +209,10 @@ func Test_GetAttemptsByDatabase_ReturnsEmptyListForNewDatabase(t *testing.T) {
 	)
 
 	assert.Equal(t, 0, len(response))
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func createTestDatabaseViaAPI(

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

@@ -130,6 +130,10 @@ func Test_SaveHealthcheckConfig_PermissionsEnforced(t *testing.T) {
 				)
 				assert.Contains(t, string(testResp.Body), "insufficient permissions")
 			}
+
+			// Cleanup
+			databases.RemoveTestDatabase(database)
+			workspaces_testing.RemoveTestWorkspace(workspace, router)
 		})
 	}
 }
@@ -162,6 +166,10 @@ func Test_SaveHealthcheckConfig_WhenUserIsNotWorkspaceMember_ReturnsForbidden(t
 	)
 
 	assert.Contains(t, string(testResp.Body), "insufficient permissions")
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func Test_GetHealthcheckConfig_PermissionsEnforced(t *testing.T) {
@@ -268,6 +276,10 @@ func Test_GetHealthcheckConfig_PermissionsEnforced(t *testing.T) {
 				)
 				assert.Contains(t, string(testResp.Body), "insufficient permissions")
 			}
+
+			// Cleanup
+			databases.RemoveTestDatabase(database)
+			workspaces_testing.RemoveTestWorkspace(workspace, router)
 		})
 	}
 }
@@ -295,6 +307,10 @@ func Test_GetHealthcheckConfig_ReturnsDefaultConfigForNewDatabase(t *testing.T)
 	assert.Equal(t, 1, response.IntervalMinutes)
 	assert.Equal(t, 3, response.AttemptsBeforeConcideredAsDown)
 	assert.Equal(t, 7, response.StoreAttemptsDays)
+
+	// Cleanup
+	databases.RemoveTestDatabase(database)
+	workspaces_testing.RemoveTestWorkspace(workspace, router)
 }
 
 func createTestDatabaseViaAPI(

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/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 +116,35 @@ 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)
+	dateHeader := fmt.Sprintf("Date: %s\r\n", time.Now().UTC().Format(time.RFC1123Z))
+
+	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 + dateHeader + mimeHeaders + message)
 }
 
 func (e *EmailNotifier) sendImplicitTLS(

backend/internal/features/plan/di.go

@@ -0,0 +1,20 @@
+package plans
+
+import (
+	"databasus-backend/internal/util/logger"
+)
+
+var databasePlanRepository = &DatabasePlanRepository{}
+
+var databasePlanService = &DatabasePlanService{
+	databasePlanRepository,
+	logger.GetLogger(),
+}
+
+func GetDatabasePlanService() *DatabasePlanService {
+	return databasePlanService
+}
+
+func GetDatabasePlanRepository() *DatabasePlanRepository {
+	return databasePlanRepository
+}

backend/internal/features/plan/model.go

@@ -0,0 +1,19 @@
+package plans
+
+import (
+	"databasus-backend/internal/util/period"
+
+	"github.com/google/uuid"
+)
+
+type DatabasePlan struct {
+	DatabaseID uuid.UUID `json:"databaseId" gorm:"column:database_id;type:uuid;primaryKey;not null"`
+
+	MaxBackupSizeMB       int64         `json:"maxBackupSizeMb"       gorm:"column:max_backup_size_mb;type:int;not null"`
+	MaxBackupsTotalSizeMB int64         `json:"maxBackupsTotalSizeMb" gorm:"column:max_backups_total_size_mb;type:int;not null"`
+	MaxStoragePeriod      period.Period `json:"maxStoragePeriod"      gorm:"column:max_storage_period;type:text;not null"`
+}
+
+func (p *DatabasePlan) TableName() string {
+	return "database_plans"
+}

backend/internal/features/plan/repository.go

@@ -0,0 +1,27 @@
+package plans
+
+import (
+	"databasus-backend/internal/storage"
+
+	"github.com/google/uuid"
+)
+
+type DatabasePlanRepository struct{}
+
+func (r *DatabasePlanRepository) GetDatabasePlan(databaseID uuid.UUID) (*DatabasePlan, error) {
+	var databasePlan DatabasePlan
+
+	if err := storage.GetDb().Where("database_id = ?", databaseID).First(&databasePlan).Error; err != nil {
+		if err.Error() == "record not found" {
+			return nil, nil
+		}
+
+		return nil, err
+	}
+
+	return &databasePlan, nil
+}
+
+func (r *DatabasePlanRepository) CreateDatabasePlan(databasePlan *DatabasePlan) error {
+	return storage.GetDb().Create(&databasePlan).Error
+}

backend/internal/features/plan/service.go

@@ -0,0 +1,67 @@
+package plans
+
+import (
+	"databasus-backend/internal/config"
+	"databasus-backend/internal/util/period"
+	"log/slog"
+
+	"github.com/google/uuid"
+)
+
+type DatabasePlanService struct {
+	databasePlanRepository *DatabasePlanRepository
+	logger                 *slog.Logger
+}
+
+func (s *DatabasePlanService) GetDatabasePlan(databaseID uuid.UUID) (*DatabasePlan, error) {
+	plan, err := s.databasePlanRepository.GetDatabasePlan(databaseID)
+	if err != nil {
+		return nil, err
+	}
+
+	if plan == nil {
+		s.logger.Info("no database plan found, creating default plan", "databaseID", databaseID)
+
+		defaultPlan := s.createDefaultDatabasePlan(databaseID)
+
+		err := s.databasePlanRepository.CreateDatabasePlan(defaultPlan)
+		if err != nil {
+			s.logger.Error("failed to create default database plan", "error", err)
+			return nil, err
+		}
+
+		return defaultPlan, nil
+	}
+
+	return plan, nil
+}
+
+func (s *DatabasePlanService) createDefaultDatabasePlan(databaseID uuid.UUID) *DatabasePlan {
+	var plan DatabasePlan
+
+	isCloud := config.GetEnv().IsCloud
+	if isCloud {
+		s.logger.Info("creating default database plan for cloud", "databaseID", databaseID)
+
+		// for playground we set limited storages enough to test,
+		// but not too expensive to provide it for Databasus
+		plan = DatabasePlan{
+			DatabaseID:            databaseID,
+			MaxBackupSizeMB:       100,  // ~ 1.5GB database
+			MaxBackupsTotalSizeMB: 4000, // ~ 30 daily backups + 10 manual backups
+			MaxStoragePeriod:      period.PeriodWeek,
+		}
+	} else {
+		s.logger.Info("creating default database plan for self hosted", "databaseID", databaseID)
+
+		// by default - everything is unlimited in self hosted mode
+		plan = DatabasePlan{
+			DatabaseID:            databaseID,
+			MaxBackupSizeMB:       0,
+			MaxBackupsTotalSizeMB: 0,
+			MaxStoragePeriod:      period.PeriodForever,
+		}
+	}
+
+	return &plan
+}

backend/internal/features/restores/background_service.go

@@ -1,38 +0,0 @@
-package restores
-
-import (
-	"context"
-	"databasus-backend/internal/features/restores/enums"
-	"log/slog"
-)
-
-type RestoreBackgroundService struct {
-	restoreRepository *RestoreRepository
-	logger            *slog.Logger
-}
-
-func (s *RestoreBackgroundService) Run(ctx context.Context) {
-	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

@@ -16,7 +16,7 @@ import (
 	"github.com/google/uuid"
 	"github.com/stretchr/testify/assert"
 
-	"databasus-backend/internal/config"
+	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"
@@ -24,16 +24,19 @@ import (
 	"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"
@@ -43,10 +46,12 @@ func Test_GetRestores_WhenUserIsWorkspaceMember_RestoresReturned(t *testing.T) {
 	router := createTestRouter()
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+	defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
 	database, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
+	defer cleanupDatabaseWithBackup(database, backup)
 
-	var restores []*models.Restore
+	var restores []*restores_core.Restore
 	test_utils.MakeGetRequestAndUnmarshal(
 		t,
 		router,
@@ -65,8 +70,10 @@ func Test_GetRestores_WhenUserIsNotWorkspaceMember_ReturnsForbidden(t *testing.T
 	router := createTestRouter()
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+	defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
-	_, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
+	database, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
+	defer cleanupDatabaseWithBackup(database, backup)
 
 	nonMember := users_testing.CreateTestUser(users_enums.UserRoleMember)
 
@@ -85,12 +92,14 @@ func Test_GetRestores_WhenUserIsGlobalAdmin_RestoresReturned(t *testing.T) {
 	router := createTestRouter()
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+	defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
-	_, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
+	database, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
+	defer cleanupDatabaseWithBackup(database, backup)
 
 	admin := users_testing.CreateTestUser(users_enums.UserRoleAdmin)
 
-	var restores []*models.Restore
+	var restores []*restores_core.Restore
 	test_utils.MakeGetRequestAndUnmarshal(
 		t,
 		router,
@@ -105,15 +114,21 @@ 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)
+	defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
-	_, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
+	database, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
+	defer cleanupDatabaseWithBackup(database, backup)
 
-	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",
@@ -136,15 +151,17 @@ func Test_RestoreBackup_WhenUserIsNotWorkspaceMember_ReturnsForbidden(t *testing
 	router := createTestRouter()
 	owner := users_testing.CreateTestUser(users_enums.UserRoleMember)
 	workspace := workspaces_testing.CreateTestWorkspace("Test Workspace", owner, router)
+	defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
-	_, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
+	database, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
+	defer cleanupDatabaseWithBackup(database, backup)
 
 	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",
@@ -165,15 +182,21 @@ 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)
+	defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
-	_, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
+	database, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
+	defer cleanupDatabaseWithBackup(database, backup)
 
-	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",
@@ -195,15 +218,21 @@ 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)
+	defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
 	database, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
+	defer cleanupDatabaseWithBackup(database, backup)
 
-	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",
@@ -272,18 +301,29 @@ 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)
+			defer workspaces_testing.RemoveTestWorkspace(workspace, router)
 
+			var database *databases.Database
 			var backup *backups_core.Backup
-			var request RestoreBackupRequest
+			var storage *storages.Storage
+			var request restores_core.RestoreBackupRequest
 
 			if tc.dbType == databases.DatabaseTypePostgres {
-				_, backup = createTestDatabaseWithBackupForRestore(workspace, owner, router)
-				request = RestoreBackupRequest{
+				database, backup = createTestDatabaseWithBackupForRestore(workspace, owner, router)
+				defer cleanupDatabaseWithBackup(database, backup)
+				request = restores_core.RestoreBackupRequest{
 					PostgresqlDatabase: &postgresql.PostgresqlDatabase{
 						Version:  tools.PostgresqlVersion16,
-						Host:     "localhost",
+						Host:     env_config.GetEnv().TestLocalhost,
 						Port:     5432,
 						Username: "postgres",
 						Password: "postgres",
@@ -297,7 +337,16 @@ func Test_RestoreBackup_DiskSpaceValidation(t *testing.T) {
 					owner.Token,
 					router,
 				)
-				storage := createTestStorage(workspace.ID)
+				database = mysqlDB
+				storage = createTestStorage(workspace.ID)
+
+				defer func() {
+					// Cleanup in dependency order: backup -> database -> storage
+					cleanupBackup(backup)
+					databases.RemoveTestDatabase(mysqlDB)
+					time.Sleep(50 * time.Millisecond)
+					storages.RemoveTestStorage(storage.ID)
+				}()
 
 				configService := backups_config.GetBackupConfigService()
 				config, err := configService.GetBackupConfigByDbId(mysqlDB.ID)
@@ -310,10 +359,11 @@ 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",
@@ -353,16 +403,189 @@ 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)
+	defer workspaces_testing.RemoveTestWorkspace(workspace, router)
+
+	database, backup := createTestDatabaseWithBackupForRestore(workspace, owner, router)
+	defer cleanupDatabaseWithBackup(database, backup)
+
+	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(
@@ -433,7 +656,7 @@ func createTestMySQLDatabase(
 	token string,
 	router *gin.Engine,
 ) *databases.Database {
-	env := config.GetEnv()
+	env := env_config.GetEnv()
 	portStr := env.TestMysql80Port
 	if portStr == "" {
 		portStr = "33080"
@@ -451,7 +674,7 @@ func createTestMySQLDatabase(
 		Type:        databases.DatabaseTypeMysql,
 		Mysql: &mysql.MysqlDatabase{
 			Version:  tools.MysqlVersion80,
-			Host:     "localhost",
+			Host:     env_config.GetEnv().TestLocalhost,
 			Port:     port,
 			Username: "testuser",
 			Password: "testpassword",
@@ -548,3 +771,22 @@ func createTestBackup(
 
 	return backup
 }
+
+func cleanupDatabaseWithBackup(database *databases.Database, backup *backups_core.Backup) {
+	// Clean up in reverse dependency order
+	cleanupBackup(backup)
+	databases.RemoveTestDatabase(database)
+	time.Sleep(50 * time.Millisecond)
+
+	// Clean up storage last (after database and backup are removed)
+	configService := backups_config.GetBackupConfigService()
+	config, err := configService.GetBackupConfigByDbId(database.ID)
+	if err == nil && config.StorageID != nil {
+		storages.RemoveTestStorage(*config.StorageID)
+	}
+}
+
+func cleanupBackup(backup *backups_core.Backup) {
+	repo := &backups_core.BackupRepository{}
+	repo.DeleteByID(backup.ID)
+}

backend/internal/features/restores/core/dto.go

@@ -1,4 +1,4 @@
-package restores
+package restores_core
 
 import (
 	"databasus-backend/internal/features/databases/databases/mariadb"

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

@@ -1,4 +1,4 @@
-package enums
+package restores_core
 
 type RestoreStatus string
 
@@ -6,4 +6,5 @@ const (
 	RestoreStatusInProgress RestoreStatus = "IN_PROGRESS"
 	RestoreStatusCompleted  RestoreStatus = "COMPLETED"
 	RestoreStatusFailed     RestoreStatus = "FAILED"
+	RestoreStatusCanceled   RestoreStatus = "CANCELED"
 )

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

@@ -0,0 +1,23 @@
+package restores_core
+
+import (
+	"context"
+
+	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"
+)
+
+type RestoreBackupUsecase interface {
+	Execute(
+		ctx context.Context,
+		backupConfig *backups_config.BackupConfig,
+		restore Restore,
+		originalDB *databases.Database,
+		restoringToDB *databases.Database,
+		backup *backups_core.Backup,
+		storage *storages.Storage,
+		isExcludeExtensions bool,
+	) error
+}

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

@@ -0,0 +1,30 @@
+package restores_core
+
+import (
+	backups_core "databasus-backend/internal/features/backups/backups/core"
+	"databasus-backend/internal/features/databases/databases/mariadb"
+	"databasus-backend/internal/features/databases/databases/mongodb"
+	"databasus-backend/internal/features/databases/databases/mysql"
+	"databasus-backend/internal/features/databases/databases/postgresql"
+	"time"
+
+	"github.com/google/uuid"
+)
+
+type Restore struct {
+	ID     uuid.UUID     `json:"id"     gorm:"column:id;type:uuid;primaryKey"`
+	Status RestoreStatus `json:"status" gorm:"column:status;type:text;not null"`
+
+	BackupID uuid.UUID `json:"backupId" gorm:"column:backup_id;type:uuid;not null"`
+	Backup   *backups_core.Backup
+
+	PostgresqlDatabase *postgresql.PostgresqlDatabase `json:"postgresqlDatabase" gorm:"-"`
+	MysqlDatabase      *mysql.MysqlDatabase           `json:"mysqlDatabase"      gorm:"-"`
+	MariadbDatabase    *mariadb.MariadbDatabase       `json:"mariadbDatabase"    gorm:"-"`
+	MongodbDatabase    *mongodb.MongodbDatabase       `json:"mongodbDatabase"    gorm:"-"`
+
+	FailMessage *string `json:"failMessage" gorm:"column:fail_message"`
+
+	RestoreDurationMs int64     `json:"restoreDurationMs" gorm:"column:restore_duration_ms;default:0"`
+	CreatedAt         time.Time `json:"createdAt"         gorm:"column:created_at;default:now()"`
+}

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

@@ -0,0 +1,91 @@
+package restores_core
+
+import (
+	"databasus-backend/internal/storage"
+
+	"github.com/google/uuid"
+)
+
+type RestoreRepository struct{}
+
+func (r *RestoreRepository) Save(restore *Restore) error {
+	db := storage.GetDb()
+
+	isNew := restore.ID == uuid.Nil
+	if isNew {
+		restore.ID = uuid.New()
+		return db.Create(restore).
+			Omit("Backup", "PostgresqlDatabase", "MysqlDatabase", "MariadbDatabase", "MongodbDatabase").
+			Error
+	}
+
+	return db.Save(restore).
+		Omit("Backup", "PostgresqlDatabase", "MysqlDatabase", "MariadbDatabase", "MongodbDatabase").
+		Error
+}
+
+func (r *RestoreRepository) FindByBackupID(backupID uuid.UUID) ([]*Restore, error) {
+	var restores []*Restore
+
+	if err := storage.
+		GetDb().
+		Preload("Backup").
+		Where("backup_id = ?", backupID).
+		Order("created_at DESC").
+		Find(&restores).Error; err != nil {
+		return nil, err
+	}
+
+	return restores, nil
+}
+
+func (r *RestoreRepository) FindByID(id uuid.UUID) (*Restore, error) {
+	var restore Restore
+
+	if err := storage.
+		GetDb().
+		Preload("Backup").
+		Where("id = ?", id).
+		First(&restore).Error; err != nil {
+		return nil, err
+	}
+
+	return &restore, nil
+}
+
+func (r *RestoreRepository) FindByStatus(status RestoreStatus) ([]*Restore, error) {
+	var restores []*Restore
+
+	if err := storage.
+		GetDb().
+		Preload("Backup").
+		Where("status = ?", status).
+		Order("created_at DESC").
+		Find(&restores).Error; err != nil {
+		return nil, err
+	}
+
+	return restores, nil
+}
+
+func (r *RestoreRepository) FindInProgressRestoresByDatabaseID(
+	databaseID uuid.UUID,
+) ([]*Restore, error) {
+	var restores []*Restore
+
+	if err := storage.
+		GetDb().
+		Preload("Backup").
+		Joins("JOIN backups ON backups.id = restores.backup_id").
+		Where("backups.database_id = ? AND restores.status = ?", databaseID, RestoreStatusInProgress).
+		Order("restores.created_at DESC").
+		Find(&restores).Error; err != nil {
+		return nil, err
+	}
+
+	return restores, nil
+}
+
+func (r *RestoreRepository) DeleteByID(id uuid.UUID) error {
+	return storage.GetDb().Delete(&Restore{}, "id = ?", id).Error
+}

backend/internal/features/restores/di.go

@@ -1,19 +1,25 @@
 package restores
 
 import (
+	"sync"
+	"sync/atomic"
+
 	audit_logs "databasus-backend/internal/features/audit_logs"
 	"databasus-backend/internal/features/backups/backups"
+	"databasus-backend/internal/features/backups/backups/backuping"
 	backups_config "databasus-backend/internal/features/backups/config"
 	"databasus-backend/internal/features/databases"
 	"databasus-backend/internal/features/disk"
+	restores_core "databasus-backend/internal/features/restores/core"
 	"databasus-backend/internal/features/restores/usecases"
 	"databasus-backend/internal/features/storages"
+	tasks_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 restoreRepository = &RestoreRepository{}
+var restoreRepository = &restores_core.RestoreRepository{}
 var restoreService = &RestoreService{
 	backups.GetBackupService(),
 	restoreRepository,
@@ -26,24 +32,32 @@ var restoreService = &RestoreService{
 	audit_logs.GetAuditLogService(),
 	encryption.GetFieldEncryptor(),
 	disk.GetDiskService(),
+	tasks_cancellation.GetTaskCancelManager(),
 }
 var restoreController = &RestoreController{
 	restoreService,
 }
 
-var restoreBackgroundService = &RestoreBackgroundService{
-	restoreRepository,
-	logger.GetLogger(),
-}
-
 func GetRestoreController() *RestoreController {
 	return restoreController
 }
 
-func GetRestoreBackgroundService() *RestoreBackgroundService {
-	return restoreBackgroundService
-}
+var (
+	setupOnce sync.Once
+	isSetup   atomic.Bool
+)
 
 func SetupDependencies() {
-	backups.GetBackupService().AddBackupRemoveListener(restoreService)
+	wasAlreadySetup := isSetup.Load()
+
+	setupOnce.Do(func() {
+		backups.GetBackupService().AddBackupRemoveListener(restoreService)
+		backuping.GetBackupCleaner().AddBackupRemoveListener(restoreService)
+
+		isSetup.Store(true)
+	})
+
+	if wasAlreadySetup {
+		logger.GetLogger().Warn("SetupDependencies called multiple times, ignoring subsequent call")
+	}
 }

backend/internal/features/restores/models/model.go

@@ -1,22 +0,0 @@
-package models
-
-import (
-	backups_core "databasus-backend/internal/features/backups/backups/core"
-	"databasus-backend/internal/features/restores/enums"
-	"time"
-
-	"github.com/google/uuid"
-)
-
-type Restore struct {
-	ID     uuid.UUID           `json:"id"     gorm:"column:id;type:uuid;primaryKey"`
-	Status enums.RestoreStatus `json:"status" gorm:"column:status;type:text;not null"`
-
-	BackupID uuid.UUID `json:"backupId" gorm:"column:backup_id;type:uuid;not null"`
-	Backup   *backups_core.Backup
-
-	FailMessage *string `json:"failMessage" gorm:"column:fail_message"`
-
-	RestoreDurationMs int64     `json:"restoreDurationMs" gorm:"column:restore_duration_ms;default:0"`
-	CreatedAt         time.Time `json:"createdAt"         gorm:"column:created_at;default:now()"`
-}

backend/internal/features/restores/repository.go

@@ -1,75 +0,0 @@
-package restores
-
-import (
-	"databasus-backend/internal/features/restores/enums"
-	"databasus-backend/internal/features/restores/models"
-	"databasus-backend/internal/storage"
-
-	"github.com/google/uuid"
-)
-
-type RestoreRepository struct{}
-
-func (r *RestoreRepository) Save(restore *models.Restore) error {
-	db := storage.GetDb()
-
-	isNew := restore.ID == uuid.Nil
-	if isNew {
-		restore.ID = uuid.New()
-		return db.Create(restore).
-			Omit("Backup").
-			Error
-	}
-
-	return db.Save(restore).
-		Omit("Backup").
-		Error
-}
-
-func (r *RestoreRepository) FindByBackupID(backupID uuid.UUID) ([]*models.Restore, error) {
-	var restores []*models.Restore
-
-	if err := storage.
-		GetDb().
-		Preload("Backup").
-		Where("backup_id = ?", backupID).
-		Order("created_at DESC").
-		Find(&restores).Error; err != nil {
-		return nil, err
-	}
-
-	return restores, nil
-}
-
-func (r *RestoreRepository) FindByID(id uuid.UUID) (*models.Restore, error) {
-	var restore models.Restore
-
-	if err := storage.
-		GetDb().
-		Preload("Backup").
-		Where("id = ?", id).
-		First(&restore).Error; err != nil {
-		return nil, err
-	}
-
-	return &restore, nil
-}
-
-func (r *RestoreRepository) FindByStatus(status enums.RestoreStatus) ([]*models.Restore, error) {
-	var restores []*models.Restore
-
-	if err := storage.
-		GetDb().
-		Preload("Backup").
-		Where("status = ?", status).
-		Order("created_at DESC").
-		Find(&restores).Error; err != nil {
-		return nil, err
-	}
-
-	return restores, nil
-}
-
-func (r *RestoreRepository) DeleteByID(id uuid.UUID) error {
-	return storage.GetDb().Delete(&models.Restore{}, "id = ?", id).Error
-}

backend/internal/features/restores/restoring/di.go

@@ -0,0 +1,85 @@
+package restoring
+
+import (
+	"sync"
+	"sync/atomic"
+	"time"
+
+	"github.com/google/uuid"
+
+	"databasus-backend/internal/features/backups/backups"
+	backups_config "databasus-backend/internal/features/backups/config"
+	"databasus-backend/internal/features/databases"
+	restores_core "databasus-backend/internal/features/restores/core"
+	"databasus-backend/internal/features/restores/usecases"
+	"databasus-backend/internal/features/storages"
+	tasks_cancellation "databasus-backend/internal/features/tasks/cancellation"
+	cache_utils "databasus-backend/internal/util/cache"
+	"databasus-backend/internal/util/encryption"
+	"databasus-backend/internal/util/logger"
+)
+
+var restoreRepository = &restores_core.RestoreRepository{}
+
+var restoreNodesRegistry = &RestoreNodesRegistry{
+	client:            cache_utils.GetValkeyClient(),
+	logger:            logger.GetLogger(),
+	timeout:           cache_utils.DefaultCacheTimeout,
+	pubsubRestores:    cache_utils.NewPubSubManager(),
+	pubsubCompletions: cache_utils.NewPubSubManager(),
+	runOnce:           sync.Once{},
+	hasRun:            atomic.Bool{},
+}
+
+var restoreDatabaseCache = cache_utils.NewCacheUtil[RestoreDatabaseCache](
+	cache_utils.GetValkeyClient(),
+	"restore_db:",
+)
+
+var restoreCancelManager = tasks_cancellation.GetTaskCancelManager()
+
+var restorerNode = &RestorerNode{
+	nodeID:               uuid.New(),
+	databaseService:      databases.GetDatabaseService(),
+	backupService:        backups.GetBackupService(),
+	fieldEncryptor:       encryption.GetFieldEncryptor(),
+	restoreRepository:    restoreRepository,
+	backupConfigService:  backups_config.GetBackupConfigService(),
+	storageService:       storages.GetStorageService(),
+	restoreNodesRegistry: restoreNodesRegistry,
+	logger:               logger.GetLogger(),
+	restoreBackupUsecase: usecases.GetRestoreBackupUsecase(),
+	cacheUtil:            restoreDatabaseCache,
+	restoreCancelManager: restoreCancelManager,
+	lastHeartbeat:        time.Time{},
+	runOnce:              sync.Once{},
+	hasRun:               atomic.Bool{},
+}
+
+var restoresScheduler = &RestoresScheduler{
+	restoreRepository:        restoreRepository,
+	backupService:            backups.GetBackupService(),
+	storageService:           storages.GetStorageService(),
+	backupConfigService:      backups_config.GetBackupConfigService(),
+	restoreNodesRegistry:     restoreNodesRegistry,
+	lastCheckTime:            time.Now().UTC(),
+	logger:                   logger.GetLogger(),
+	restoreToNodeRelations:   make(map[uuid.UUID]RestoreToNodeRelation),
+	restorerNode:             restorerNode,
+	cacheUtil:                restoreDatabaseCache,
+	completionSubscriptionID: uuid.Nil,
+	runOnce:                  sync.Once{},
+	hasRun:                   atomic.Bool{},
+}
+
+func GetRestoresScheduler() *RestoresScheduler {
+	return restoresScheduler
+}
+
+func GetRestorerNode() *RestorerNode {
+	return restorerNode
+}
+
+func GetRestoreNodesRegistry() *RestoreNodesRegistry {
+	return restoreNodesRegistry
+}

backend/internal/features/restores/restoring/dto.go

@@ -0,0 +1,45 @@
+package restoring
+
+import (
+	"databasus-backend/internal/features/databases/databases/mariadb"
+	"databasus-backend/internal/features/databases/databases/mongodb"
+	"databasus-backend/internal/features/databases/databases/mysql"
+	"databasus-backend/internal/features/databases/databases/postgresql"
+	"time"
+
+	"github.com/google/uuid"
+)
+
+type RestoreDatabaseCache struct {
+	PostgresqlDatabase *postgresql.PostgresqlDatabase `json:"postgresqlDatabase,omitempty"`
+	MysqlDatabase      *mysql.MysqlDatabase           `json:"mysqlDatabase,omitempty"`
+	MariadbDatabase    *mariadb.MariadbDatabase       `json:"mariadbDatabase,omitempty"`
+	MongodbDatabase    *mongodb.MongodbDatabase       `json:"mongodbDatabase,omitempty"`
+}
+
+type RestoreToNodeRelation struct {
+	NodeID     uuid.UUID   `json:"nodeId"`
+	RestoreIDs []uuid.UUID `json:"restoreIds"`
+}
+
+type RestoreNode struct {
+	ID            uuid.UUID `json:"id"`
+	ThroughputMBs int       `json:"throughputMBs"`
+	LastHeartbeat time.Time `json:"lastHeartbeat"`
+}
+
+type RestoreNodeStats struct {
+	ID             uuid.UUID `json:"id"`
+	ActiveRestores int       `json:"activeRestores"`
+}
+
+type RestoreSubmitMessage struct {
+	NodeID         uuid.UUID `json:"nodeId"`
+	RestoreID      uuid.UUID `json:"restoreId"`
+	IsCallNotifier bool      `json:"isCallNotifier"`
+}
+
+type RestoreCompletionMessage struct {
+	NodeID    uuid.UUID `json:"nodeId"`
+	RestoreID uuid.UUID `json:"restoreId"`
+}

backend/internal/features/restores/restoring/mocks.go

@@ -0,0 +1,88 @@
+package restoring
+
+import (
+	"context"
+	"errors"
+
+	backups_core "databasus-backend/internal/features/backups/backups/core"
+	backups_config "databasus-backend/internal/features/backups/config"
+	"databasus-backend/internal/features/databases"
+	restores_core "databasus-backend/internal/features/restores/core"
+	"databasus-backend/internal/features/storages"
+)
+
+type MockSuccessRestoreUsecase struct{}
+
+func (uc *MockSuccessRestoreUsecase) Execute(
+	ctx context.Context,
+	backupConfig *backups_config.BackupConfig,
+	restore restores_core.Restore,
+	originalDB *databases.Database,
+	restoringToDB *databases.Database,
+	backup *backups_core.Backup,
+	storage *storages.Storage,
+	isExcludeExtensions bool,
+) error {
+	return nil
+}
+
+type MockFailedRestoreUsecase struct{}
+
+func (uc *MockFailedRestoreUsecase) Execute(
+	ctx context.Context,
+	backupConfig *backups_config.BackupConfig,
+	restore restores_core.Restore,
+	originalDB *databases.Database,
+	restoringToDB *databases.Database,
+	backup *backups_core.Backup,
+	storage *storages.Storage,
+	isExcludeExtensions bool,
+) error {
+	return errors.New("restore failed")
+}
+
+type MockCaptureCredentialsRestoreUsecase struct {
+	CalledChan    chan *databases.Database
+	ShouldSucceed bool
+}
+
+func (uc *MockCaptureCredentialsRestoreUsecase) Execute(
+	ctx context.Context,
+	backupConfig *backups_config.BackupConfig,
+	restore restores_core.Restore,
+	originalDB *databases.Database,
+	restoringToDB *databases.Database,
+	backup *backups_core.Backup,
+	storage *storages.Storage,
+	isExcludeExtensions bool,
+) error {
+	uc.CalledChan <- restoringToDB
+
+	if uc.ShouldSucceed {
+		return nil
+	}
+	return errors.New("mock restore failed")
+}
+
+type MockBlockingRestoreUsecase struct {
+	StartedChan chan bool
+}
+
+func (uc *MockBlockingRestoreUsecase) Execute(
+	ctx context.Context,
+	backupConfig *backups_config.BackupConfig,
+	restore restores_core.Restore,
+	originalDB *databases.Database,
+	restoringToDB *databases.Database,
+	backup *backups_core.Backup,
+	storage *storages.Storage,
+	isExcludeExtensions bool,
+) error {
+	if uc.StartedChan != nil {
+		uc.StartedChan <- true
+	}
+
+	<-ctx.Done()
+
+	return ctx.Err()
+}

backend/internal/features/restores/restoring/registry.go

@@ -0,0 +1,649 @@
+package restoring
+
+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        = "restore:node:"
+	nodeInfoKeySuffix        = ":info"
+	nodeActiveRestoresPrefix = "restore:node:"
+	nodeActiveRestoresSuffix = ":active_restores"
+	restoreSubmitChannel     = "restore:submit"
+	restoreCompletionChannel = "restore:completion"
+
+	deadNodeThreshold     = 2 * time.Minute
+	cleanupTickerInterval = 1 * time.Second
+)
+
+// RestoreNodesRegistry helps to sync restores scheduler and restore nodes.
+//
+// Features:
+// - Track node availability and load level
+// - Assign from scheduler to node restores needed to be processed
+// - Notify scheduler from node about restore 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 RestoreNodesRegistry struct {
+	client            valkey.Client
+	logger            *slog.Logger
+	timeout           time.Duration
+	pubsubRestores    *cache_utils.PubSubManager
+	pubsubCompletions *cache_utils.PubSubManager
+
+	runOnce sync.Once
+	hasRun  atomic.Bool
+}
+
+func (r *RestoreNodesRegistry) 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 *RestoreNodesRegistry) GetAvailableNodes() ([]RestoreNode, 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 []RestoreNode{}, 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 []RestoreNode
+
+	for key, data := range keyDataMap {
+		// Skip if the key doesn't exist (data is empty)
+		if len(data) == 0 {
+			continue
+		}
+
+		var node RestoreNode
+		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 *RestoreNodesRegistry) GetRestoreNodesStats() ([]RestoreNodeStats, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
+	defer cancel()
+
+	var allKeys []string
+	cursor := uint64(0)
+	pattern := nodeActiveRestoresPrefix + "*" + nodeActiveRestoresSuffix
+
+	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 restores 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 []RestoreNodeStats{}, nil
+	}
+
+	keyDataMap, err := r.pipelineGetKeys(allKeys)
+	if err != nil {
+		return nil, fmt.Errorf("failed to pipeline get active restores keys: %w", err)
+	}
+
+	var nodeInfoKeys []string
+	nodeIDToStatsKey := make(map[string]string)
+	for key := range keyDataMap {
+		nodeID := r.extractNodeIDFromKey(key, nodeActiveRestoresPrefix, nodeActiveRestoresSuffix)
+		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 []RestoreNodeStats
+	for infoKey, nodeData := range nodeInfoMap {
+		// Skip if the info key doesn't exist (nodeData is empty)
+		if len(nodeData) == 0 {
+			continue
+		}
+
+		var node RestoreNode
+		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 restores count", "key", statsKey, "error", err)
+			continue
+		}
+
+		stat := RestoreNodeStats{
+			ID:             node.ID,
+			ActiveRestores: int(count),
+		}
+		stats = append(stats, stat)
+	}
+
+	return stats, nil
+}
+
+func (r *RestoreNodesRegistry) IncrementRestoresInProgress(nodeID uuid.UUID) error {
+	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
+	defer cancel()
+
+	key := fmt.Sprintf(
+		"%s%s%s",
+		nodeActiveRestoresPrefix,
+		nodeID.String(),
+		nodeActiveRestoresSuffix,
+	)
+	result := r.client.Do(ctx, r.client.B().Incr().Key(key).Build())
+
+	if result.Error() != nil {
+		return fmt.Errorf(
+			"failed to increment restores in progress for node %s: %w",
+			nodeID,
+			result.Error(),
+		)
+	}
+
+	return nil
+}
+
+func (r *RestoreNodesRegistry) DecrementRestoresInProgress(nodeID uuid.UUID) error {
+	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
+	defer cancel()
+
+	key := fmt.Sprintf(
+		"%s%s%s",
+		nodeActiveRestoresPrefix,
+		nodeID.String(),
+		nodeActiveRestoresSuffix,
+	)
+	result := r.client.Do(ctx, r.client.B().Decr().Key(key).Build())
+
+	if result.Error() != nil {
+		return fmt.Errorf(
+			"failed to decrement restores 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 restores counter went below 0, reset to 0", "nodeID", nodeID)
+	}
+
+	return nil
+}
+
+func (r *RestoreNodesRegistry) HearthbeatNodeInRegistry(
+	now time.Time,
+	restoreNode RestoreNode,
+) error {
+	if now.IsZero() {
+		return fmt.Errorf("cannot register node with zero heartbeat timestamp")
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
+	defer cancel()
+
+	restoreNode.LastHeartbeat = now
+
+	data, err := json.Marshal(restoreNode)
+	if err != nil {
+		return fmt.Errorf("failed to marshal restore node: %w", err)
+	}
+
+	key := fmt.Sprintf("%s%s%s", nodeInfoKeyPrefix, restoreNode.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", restoreNode.ID, result.Error())
+	}
+
+	return nil
+}
+
+func (r *RestoreNodesRegistry) UnregisterNodeFromRegistry(restoreNode RestoreNode) error {
+	ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
+	defer cancel()
+
+	infoKey := fmt.Sprintf("%s%s%s", nodeInfoKeyPrefix, restoreNode.ID.String(), nodeInfoKeySuffix)
+	counterKey := fmt.Sprintf(
+		"%s%s%s",
+		nodeActiveRestoresPrefix,
+		restoreNode.ID.String(),
+		nodeActiveRestoresSuffix,
+	)
+
+	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", restoreNode.ID, result.Error())
+	}
+
+	r.logger.Info("Unregistered node from registry", "nodeID", restoreNode.ID)
+	return nil
+}
+
+func (r *RestoreNodesRegistry) AssignRestoreToNode(
+	targetNodeID uuid.UUID,
+	restoreID uuid.UUID,
+	isCallNotifier bool,
+) error {
+	ctx := context.Background()
+
+	message := RestoreSubmitMessage{
+		NodeID:         targetNodeID,
+		RestoreID:      restoreID,
+		IsCallNotifier: isCallNotifier,
+	}
+
+	messageJSON, err := json.Marshal(message)
+	if err != nil {
+		return fmt.Errorf("failed to marshal restore submit message: %w", err)
+	}
+
+	err = r.pubsubRestores.Publish(ctx, restoreSubmitChannel, string(messageJSON))
+	if err != nil {
+		return fmt.Errorf("failed to publish restore submit message: %w", err)
+	}
+
+	return nil
+}
+
+func (r *RestoreNodesRegistry) SubscribeNodeForRestoresAssignment(
+	nodeID uuid.UUID,
+	handler func(restoreID uuid.UUID, isCallNotifier bool),
+) error {
+	ctx := context.Background()
+
+	wrappedHandler := func(message string) {
+		var msg RestoreSubmitMessage
+		if err := json.Unmarshal([]byte(message), &msg); err != nil {
+			r.logger.Warn("Failed to unmarshal restore submit message", "error", err)
+			return
+		}
+
+		if msg.NodeID != nodeID {
+			return
+		}
+
+		handler(msg.RestoreID, msg.IsCallNotifier)
+	}
+
+	err := r.pubsubRestores.Subscribe(ctx, restoreSubmitChannel, wrappedHandler)
+	if err != nil {
+		return fmt.Errorf("failed to subscribe to restore submit channel: %w", err)
+	}
+
+	r.logger.Info("Subscribed to restore submit channel", "nodeID", nodeID)
+	return nil
+}
+
+func (r *RestoreNodesRegistry) UnsubscribeNodeForRestoresAssignments() error {
+	err := r.pubsubRestores.Close()
+	if err != nil {
+		return fmt.Errorf("failed to unsubscribe from restore submit channel: %w", err)
+	}
+
+	r.logger.Info("Unsubscribed from restore submit channel")
+	return nil
+}
+
+func (r *RestoreNodesRegistry) PublishRestoreCompletion(
+	nodeID uuid.UUID,
+	restoreID uuid.UUID,
+) error {
+	ctx := context.Background()
+
+	message := RestoreCompletionMessage{
+		NodeID:    nodeID,
+		RestoreID: restoreID,
+	}
+
+	messageJSON, err := json.Marshal(message)
+	if err != nil {
+		return fmt.Errorf("failed to marshal restore completion message: %w", err)
+	}
+
+	err = r.pubsubCompletions.Publish(ctx, restoreCompletionChannel, string(messageJSON))
+	if err != nil {
+		return fmt.Errorf("failed to publish restore completion message: %w", err)
+	}
+
+	return nil
+}
+
+func (r *RestoreNodesRegistry) SubscribeForRestoresCompletions(
+	handler func(nodeID uuid.UUID, restoreID uuid.UUID),
+) error {
+	ctx := context.Background()
+
+	wrappedHandler := func(message string) {
+		var msg RestoreCompletionMessage
+		if err := json.Unmarshal([]byte(message), &msg); err != nil {
+			r.logger.Warn("Failed to unmarshal restore completion message", "error", err)
+			return
+		}
+
+		handler(msg.NodeID, msg.RestoreID)
+	}
+
+	err := r.pubsubCompletions.Subscribe(ctx, restoreCompletionChannel, wrappedHandler)
+	if err != nil {
+		return fmt.Errorf("failed to subscribe to restore completion channel: %w", err)
+	}
+
+	r.logger.Info("Subscribed to restore completion channel")
+	return nil
+}
+
+func (r *RestoreNodesRegistry) UnsubscribeForRestoresCompletions() error {
+	err := r.pubsubCompletions.Close()
+	if err != nil {
+		return fmt.Errorf("failed to unsubscribe from restore completion channel: %w", err)
+	}
+
+	r.logger.Info("Unsubscribed from restore completion channel")
+	return nil
+}
+
+func (r *RestoreNodesRegistry) 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 *RestoreNodesRegistry) 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 *RestoreNodesRegistry) 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 *RestoreNodesRegistry) 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 RestoreNode
+		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",
+				nodeActiveRestoresPrefix,
+				nodeID,
+				nodeActiveRestoresSuffix,
+			)
+
+			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/restores/restoring/restorer.go

@@ -0,0 +1,310 @@
+package restoring
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log/slog"
+	"strings"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	"github.com/google/uuid"
+
+	"databasus-backend/internal/config"
+	"databasus-backend/internal/features/backups/backups"
+	backups_config "databasus-backend/internal/features/backups/config"
+	"databasus-backend/internal/features/databases"
+	restores_core "databasus-backend/internal/features/restores/core"
+	"databasus-backend/internal/features/storages"
+	tasks_cancellation "databasus-backend/internal/features/tasks/cancellation"
+	cache_utils "databasus-backend/internal/util/cache"
+	util_encryption "databasus-backend/internal/util/encryption"
+)
+
+const (
+	heartbeatTickerInterval      = 15 * time.Second
+	restorerHealthcheckThreshold = 5 * time.Minute
+)
+
+type RestorerNode struct {
+	nodeID uuid.UUID
+
+	databaseService      *databases.DatabaseService
+	backupService        *backups.BackupService
+	fieldEncryptor       util_encryption.FieldEncryptor
+	restoreRepository    *restores_core.RestoreRepository
+	backupConfigService  *backups_config.BackupConfigService
+	storageService       *storages.StorageService
+	restoreNodesRegistry *RestoreNodesRegistry
+	logger               *slog.Logger
+	restoreBackupUsecase restores_core.RestoreBackupUsecase
+	cacheUtil            *cache_utils.CacheUtil[RestoreDatabaseCache]
+	restoreCancelManager *tasks_cancellation.TaskCancelManager
+
+	lastHeartbeat time.Time
+
+	runOnce sync.Once
+	hasRun  atomic.Bool
+}
+
+func (n *RestorerNode) 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
+
+		restoreNode := RestoreNode{
+			ID:            n.nodeID,
+			ThroughputMBs: throughputMBs,
+		}
+
+		if err := n.restoreNodesRegistry.HearthbeatNodeInRegistry(time.Now().UTC(), restoreNode); err != nil {
+			n.logger.Error("Failed to register node in registry", "error", err)
+			panic(err)
+		}
+
+		restoreHandler := func(restoreID uuid.UUID, isCallNotifier bool) {
+			n.MakeRestore(restoreID)
+			if err := n.restoreNodesRegistry.PublishRestoreCompletion(n.nodeID, restoreID); err != nil {
+				n.logger.Error(
+					"Failed to publish restore completion",
+					"error",
+					err,
+					"restoreID",
+					restoreID,
+				)
+			}
+		}
+
+		err := n.restoreNodesRegistry.SubscribeNodeForRestoresAssignment(
+			n.nodeID,
+			restoreHandler,
+		)
+		if err != nil {
+			n.logger.Error("Failed to subscribe to restore assignments", "error", err)
+			panic(err)
+		}
+		defer func() {
+			if err := n.restoreNodesRegistry.UnsubscribeNodeForRestoresAssignments(); err != nil {
+				n.logger.Error("Failed to unsubscribe from restore assignments", "error", err)
+			}
+		}()
+
+		ticker := time.NewTicker(heartbeatTickerInterval)
+		defer ticker.Stop()
+
+		n.logger.Info("Restore 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.restoreNodesRegistry.UnregisterNodeFromRegistry(restoreNode); err != nil {
+					n.logger.Error("Failed to unregister node from registry", "error", err)
+				}
+
+				return
+			case <-ticker.C:
+				n.sendHeartbeat(&restoreNode)
+			}
+		}
+	})
+
+	if wasAlreadyRun {
+		panic(fmt.Sprintf("%T.Run() called multiple times", n))
+	}
+}
+
+func (n *RestorerNode) IsRestorerRunning() bool {
+	return n.lastHeartbeat.After(time.Now().UTC().Add(-restorerHealthcheckThreshold))
+}
+
+func (n *RestorerNode) MakeRestore(restoreID uuid.UUID) {
+	// Get and delete cached DB credentials atomically
+	dbCache := n.cacheUtil.GetAndDelete(restoreID.String())
+
+	if dbCache == nil {
+		// Cache miss - fail immediately
+		restore, err := n.restoreRepository.FindByID(restoreID)
+		if err != nil {
+			n.logger.Error(
+				"Failed to get restore by ID after cache miss",
+				"restoreId",
+				restoreID,
+				"error",
+				err,
+			)
+			return
+		}
+
+		errMsg := "Database credentials expired or missing from cache (most likely due to instance restart)"
+		restore.FailMessage = &errMsg
+		restore.Status = restores_core.RestoreStatusFailed
+
+		if err := n.restoreRepository.Save(restore); err != nil {
+			n.logger.Error("Failed to save restore after cache miss", "error", err)
+		}
+
+		n.logger.Error("Restore failed: cache miss", "restoreId", restoreID)
+		return
+	}
+
+	restore, err := n.restoreRepository.FindByID(restoreID)
+	if err != nil {
+		n.logger.Error("Failed to get restore by ID", "restoreId", restoreID, "error", err)
+		return
+	}
+
+	backup, err := n.backupService.GetBackup(restore.BackupID)
+	if err != nil {
+		n.logger.Error("Failed to get backup by ID", "backupId", restore.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()
+
+	// Create cancellable context
+	ctx, cancel := context.WithCancel(context.Background())
+	n.restoreCancelManager.RegisterTask(restore.ID, cancel)
+	defer n.restoreCancelManager.UnregisterTask(restore.ID)
+
+	// Create restoring database from cached credentials
+	restoringToDB := &databases.Database{
+		Type:       database.Type,
+		Postgresql: dbCache.PostgresqlDatabase,
+		Mysql:      dbCache.MysqlDatabase,
+		Mariadb:    dbCache.MariadbDatabase,
+		Mongodb:    dbCache.MongodbDatabase,
+	}
+
+	if err := restoringToDB.PopulateDbData(n.logger, n.fieldEncryptor); err != nil {
+		errMsg := fmt.Sprintf("failed to auto-detect database data: %v", err)
+		restore.FailMessage = &errMsg
+		restore.Status = restores_core.RestoreStatusFailed
+		restore.RestoreDurationMs = time.Since(start).Milliseconds()
+
+		if err := n.restoreRepository.Save(restore); err != nil {
+			n.logger.Error("Failed to save restore", "error", err)
+		}
+
+		return
+	}
+
+	isExcludeExtensions := false
+	if dbCache.PostgresqlDatabase != nil {
+		isExcludeExtensions = dbCache.PostgresqlDatabase.IsExcludeExtensions
+	}
+
+	err = n.restoreBackupUsecase.Execute(
+		ctx,
+		backupConfig,
+		*restore,
+		database,
+		restoringToDB,
+		backup,
+		storage,
+		isExcludeExtensions,
+	)
+
+	if err != nil {
+		errMsg := err.Error()
+
+		// Check if restore was cancelled
+		isCancelled := strings.Contains(errMsg, "restore cancelled") ||
+			strings.Contains(errMsg, "context canceled") ||
+			errors.Is(err, context.Canceled)
+		isShutdown := strings.Contains(errMsg, "shutdown")
+
+		if isCancelled && !isShutdown {
+			n.logger.Warn("Restore was cancelled by user or system",
+				"restoreId", restore.ID,
+				"isCancelled", isCancelled,
+				"isShutdown", isShutdown,
+			)
+
+			restore.Status = restores_core.RestoreStatusCanceled
+			restore.RestoreDurationMs = time.Since(start).Milliseconds()
+
+			if err := n.restoreRepository.Save(restore); err != nil {
+				n.logger.Error("Failed to save cancelled restore", "error", err)
+			}
+
+			return
+		}
+
+		n.logger.Error("Restore execution failed",
+			"restoreId", restore.ID,
+			"backupId", backup.ID,
+			"databaseId", databaseID,
+			"databaseType", database.Type,
+			"storageId", storage.ID,
+			"storageType", storage.Type,
+			"error", err,
+			"errorMessage", errMsg,
+		)
+
+		restore.FailMessage = &errMsg
+		restore.Status = restores_core.RestoreStatusFailed
+		restore.RestoreDurationMs = time.Since(start).Milliseconds()
+
+		if err := n.restoreRepository.Save(restore); err != nil {
+			n.logger.Error("Failed to save restore", "error", err)
+		}
+
+		return
+	}
+
+	restore.Status = restores_core.RestoreStatusCompleted
+	restore.RestoreDurationMs = time.Since(start).Milliseconds()
+
+	if err := n.restoreRepository.Save(restore); err != nil {
+		n.logger.Error("Failed to save restore", "error", err)
+		return
+	}
+
+	n.logger.Info(
+		"Restore completed successfully",
+		"restoreId", restore.ID,
+		"backupId", backup.ID,
+		"durationMs", restore.RestoreDurationMs,
+	)
+}
+
+func (n *RestorerNode) sendHeartbeat(restoreNode *RestoreNode) {
+	n.lastHeartbeat = time.Now().UTC()
+	if err := n.restoreNodesRegistry.HearthbeatNodeInRegistry(time.Now().UTC(), *restoreNode); err != nil {
+		n.logger.Error("Failed to send heartbeat", "error", err)
+	}
+}

backend/internal/features/restores/restoring/restorer_test.go

@@ -0,0 +1,164 @@
+package restoring
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+
+	"databasus-backend/internal/config"
+	"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/postgresql"
+	"databasus-backend/internal/features/notifiers"
+	restores_core "databasus-backend/internal/features/restores/core"
+	"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"
+)
+
+func Test_MakeRestore_WhenCacheMissed_RestoreFails(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() {
+		backupRepo := backups_core.BackupRepository{}
+		backupsList, _ := backupRepo.FindByDatabaseID(database.ID)
+		for _, backup := range backupsList {
+			backupRepo.DeleteByID(backup.ID)
+		}
+
+		restoreRepo := restores_core.RestoreRepository{}
+		restoresInProgress, _ := restoreRepo.FindByStatus(restores_core.RestoreStatusInProgress)
+		for _, restore := range restoresInProgress {
+			restoreRepo.DeleteByID(restore.ID)
+		}
+		restoresFailed, _ := restoreRepo.FindByStatus(restores_core.RestoreStatusFailed)
+		for _, restore := range restoresFailed {
+			restoreRepo.DeleteByID(restore.ID)
+		}
+
+		databases.RemoveTestDatabase(database)
+		time.Sleep(50 * time.Millisecond)
+		notifiers.RemoveTestNotifier(notifier)
+		storages.RemoveTestStorage(storage.ID)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+
+		cache_utils.ClearAllCache()
+	}()
+
+	backup := backups.CreateTestBackup(database.ID, storage.ID)
+
+	// Create restore but DON'T cache DB credentials
+	// Also don't set embedded DB fields to avoid schema issues
+	restore := &restores_core.Restore{
+		BackupID: backup.ID,
+		Status:   restores_core.RestoreStatusInProgress,
+	}
+	err := restoreRepository.Save(restore)
+	assert.NoError(t, err)
+
+	// Create restorer and execute restore (should fail due to cache miss)
+	restorerNode := CreateTestRestorerNode()
+	restorerNode.MakeRestore(restore.ID)
+
+	// Verify restore failed with appropriate error message
+	updatedRestore, err := restoreRepository.FindByID(restore.ID)
+	assert.NoError(t, err)
+	assert.Equal(t, restores_core.RestoreStatusFailed, updatedRestore.Status)
+	assert.NotNil(t, updatedRestore.FailMessage)
+	assert.Contains(
+		t,
+		*updatedRestore.FailMessage,
+		"Database credentials expired or missing from cache",
+	)
+}
+
+func Test_MakeRestore_WhenTaskStarts_CacheDeletedImmediately(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() {
+		backupRepo := backups_core.BackupRepository{}
+		backupsList, _ := backupRepo.FindByDatabaseID(database.ID)
+		for _, backup := range backupsList {
+			backupRepo.DeleteByID(backup.ID)
+		}
+
+		restoreRepo := restores_core.RestoreRepository{}
+		restoresInProgress, _ := restoreRepo.FindByStatus(restores_core.RestoreStatusInProgress)
+		for _, restore := range restoresInProgress {
+			restoreRepo.DeleteByID(restore.ID)
+		}
+		restoresFailed, _ := restoreRepo.FindByStatus(restores_core.RestoreStatusFailed)
+		for _, restore := range restoresFailed {
+			restoreRepo.DeleteByID(restore.ID)
+		}
+		restoresCompleted, _ := restoreRepo.FindByStatus(restores_core.RestoreStatusCompleted)
+		for _, restore := range restoresCompleted {
+			restoreRepo.DeleteByID(restore.ID)
+		}
+
+		databases.RemoveTestDatabase(database)
+		time.Sleep(50 * time.Millisecond)
+		notifiers.RemoveTestNotifier(notifier)
+		storages.RemoveTestStorage(storage.ID)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+
+		cache_utils.ClearAllCache()
+	}()
+
+	backup := backups.CreateTestBackup(database.ID, storage.ID)
+
+	// Create restore with cached DB credentials
+	// Don't set embedded DB fields in the restore model itself
+	restore := &restores_core.Restore{
+		BackupID: backup.ID,
+		Status:   restores_core.RestoreStatusInProgress,
+	}
+	err := restoreRepository.Save(restore)
+	assert.NoError(t, err)
+
+	// Cache DB credentials separately
+	dbCache := &RestoreDatabaseCache{
+		PostgresqlDatabase: &postgresql.PostgresqlDatabase{
+			Host:     config.GetEnv().TestLocalhost,
+			Port:     5432,
+			Username: "test",
+			Password: "test",
+			Database: stringPtr("testdb"),
+			Version:  "16",
+		},
+	}
+	restoreDatabaseCache.SetWithExpiration(restore.ID.String(), dbCache, 1*time.Hour)
+
+	// Verify cache exists before restore starts
+	cachedDB := restoreDatabaseCache.Get(restore.ID.String())
+	assert.NotNil(t, cachedDB, "Cache should exist before restore starts")
+
+	// Start restore (this will call GetAndDelete)
+	restorerNode := CreateTestRestorerNode()
+	restorerNode.MakeRestore(restore.ID)
+
+	// Verify cache was deleted immediately
+	cachedDBAfter := restoreDatabaseCache.Get(restore.ID.String())
+	assert.Nil(t, cachedDBAfter, "Cache should be deleted immediately when task starts")
+}

backend/internal/features/restores/restoring/scheduler.go

@@ -0,0 +1,410 @@
+package restoring
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	"github.com/google/uuid"
+
+	"databasus-backend/internal/config"
+	"databasus-backend/internal/features/backups/backups"
+	backups_config "databasus-backend/internal/features/backups/config"
+	restores_core "databasus-backend/internal/features/restores/core"
+	"databasus-backend/internal/features/storages"
+	cache_utils "databasus-backend/internal/util/cache"
+)
+
+const (
+	schedulerStartupDelay         = 1 * time.Minute
+	schedulerTickerInterval       = 1 * time.Minute
+	schedulerHealthcheckThreshold = 5 * time.Minute
+)
+
+type RestoresScheduler struct {
+	restoreRepository        *restores_core.RestoreRepository
+	backupService            *backups.BackupService
+	storageService           *storages.StorageService
+	backupConfigService      *backups_config.BackupConfigService
+	restoreNodesRegistry     *RestoreNodesRegistry
+	lastCheckTime            time.Time
+	logger                   *slog.Logger
+	restoreToNodeRelations   map[uuid.UUID]RestoreToNodeRelation
+	restorerNode             *RestorerNode
+	cacheUtil                *cache_utils.CacheUtil[RestoreDatabaseCache]
+	completionSubscriptionID uuid.UUID
+
+	runOnce sync.Once
+	hasRun  atomic.Bool
+}
+
+func (s *RestoresScheduler) Run(ctx context.Context) {
+	wasAlreadyRun := s.hasRun.Load()
+
+	s.runOnce.Do(func() {
+		s.hasRun.Store(true)
+
+		s.lastCheckTime = time.Now().UTC()
+
+		if config.GetEnv().IsManyNodesMode {
+			// wait other nodes to start
+			time.Sleep(schedulerStartupDelay)
+		}
+
+		if err := s.failRestoresInProgress(); err != nil {
+			s.logger.Error("Failed to fail restores in progress", "error", err)
+			panic(err)
+		}
+
+		err := s.restoreNodesRegistry.SubscribeForRestoresCompletions(s.onRestoreCompleted)
+		if err != nil {
+			s.logger.Error("Failed to subscribe to restore completions", "error", err)
+			panic(err)
+		}
+
+		defer func() {
+			if err := s.restoreNodesRegistry.UnsubscribeForRestoresCompletions(); err != nil {
+				s.logger.Error("Failed to unsubscribe from restore 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.checkDeadNodesAndFailRestores(); err != nil {
+					s.logger.Error("Failed to check dead nodes and fail restores", "error", err)
+				}
+
+				s.lastCheckTime = time.Now().UTC()
+			}
+		}
+	})
+
+	if wasAlreadyRun {
+		panic(fmt.Sprintf("%T.Run() called multiple times", s))
+	}
+}
+
+func (s *RestoresScheduler) IsSchedulerRunning() bool {
+	return s.lastCheckTime.After(time.Now().UTC().Add(-schedulerHealthcheckThreshold))
+}
+
+func (s *RestoresScheduler) failRestoresInProgress() error {
+	restoresInProgress, err := s.restoreRepository.FindByStatus(
+		restores_core.RestoreStatusInProgress,
+	)
+	if err != nil {
+		return err
+	}
+
+	for _, restore := range restoresInProgress {
+		failMessage := "Restore failed due to application restart"
+		restore.FailMessage = &failMessage
+		restore.Status = restores_core.RestoreStatusFailed
+
+		if err := s.restoreRepository.Save(restore); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (s *RestoresScheduler) StartRestore(restoreID uuid.UUID, dbCache *RestoreDatabaseCache) error {
+	// If dbCache not provided, try to fetch from DB (for backward compatibility/testing)
+	if dbCache == nil {
+		restore, err := s.restoreRepository.FindByID(restoreID)
+		if err != nil {
+			s.logger.Error(
+				"Failed to find restore by ID",
+				"restoreId",
+				restoreID,
+				"error",
+				err,
+			)
+			return err
+		}
+
+		// Create cache DTO from restore (may be nil if not in DB)
+		dbCache = &RestoreDatabaseCache{
+			PostgresqlDatabase: restore.PostgresqlDatabase,
+			MysqlDatabase:      restore.MysqlDatabase,
+			MariadbDatabase:    restore.MariadbDatabase,
+			MongodbDatabase:    restore.MongodbDatabase,
+		}
+	}
+
+	// Cache database credentials with 1-hour expiration
+	s.cacheUtil.SetWithExpiration(restoreID.String(), dbCache, 1*time.Hour)
+
+	leastBusyNodeID, err := s.calculateLeastBusyNode()
+	if err != nil {
+		s.logger.Error(
+			"Failed to calculate least busy node",
+			"restoreId",
+			restoreID,
+			"error",
+			err,
+		)
+		return err
+	}
+
+	if err := s.restoreNodesRegistry.IncrementRestoresInProgress(*leastBusyNodeID); err != nil {
+		s.logger.Error(
+			"Failed to increment restores in progress",
+			"nodeId",
+			leastBusyNodeID,
+			"restoreId",
+			restoreID,
+			"error",
+			err,
+		)
+		return err
+	}
+
+	if err := s.restoreNodesRegistry.AssignRestoreToNode(*leastBusyNodeID, restoreID, false); err != nil {
+		s.logger.Error(
+			"Failed to submit restore",
+			"nodeId",
+			leastBusyNodeID,
+			"restoreId",
+			restoreID,
+			"error",
+			err,
+		)
+		if decrementErr := s.restoreNodesRegistry.DecrementRestoresInProgress(*leastBusyNodeID); decrementErr != nil {
+			s.logger.Error(
+				"Failed to decrement restores in progress after submit failure",
+				"nodeId",
+				leastBusyNodeID,
+				"error",
+				decrementErr,
+			)
+		}
+		return err
+	}
+
+	if relation, exists := s.restoreToNodeRelations[*leastBusyNodeID]; exists {
+		relation.RestoreIDs = append(relation.RestoreIDs, restoreID)
+		s.restoreToNodeRelations[*leastBusyNodeID] = relation
+	} else {
+		s.restoreToNodeRelations[*leastBusyNodeID] = RestoreToNodeRelation{
+			NodeID:     *leastBusyNodeID,
+			RestoreIDs: []uuid.UUID{restoreID},
+		}
+	}
+
+	s.logger.Info(
+		"Successfully triggered restore",
+		"restoreId",
+		restoreID,
+		"nodeId",
+		leastBusyNodeID,
+	)
+
+	return nil
+}
+
+func (s *RestoresScheduler) calculateLeastBusyNode() (*uuid.UUID, error) {
+	nodes, err := s.restoreNodesRegistry.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.restoreNodesRegistry.GetRestoreNodesStats()
+	if err != nil {
+		return nil, fmt.Errorf("failed to get restore nodes stats: %w", err)
+	}
+
+	statsMap := make(map[uuid.UUID]int)
+	for _, stat := range stats {
+		statsMap[stat.ID] = stat.ActiveRestores
+	}
+
+	var bestNode *RestoreNode
+	var bestScore float64 = -1
+
+	for i := range nodes {
+		node := &nodes[i]
+
+		activeRestores := statsMap[node.ID]
+
+		var score float64
+		if node.ThroughputMBs > 0 {
+			score = float64(activeRestores) / float64(node.ThroughputMBs)
+		} else {
+			score = float64(activeRestores) * 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 *RestoresScheduler) onRestoreCompleted(nodeID uuid.UUID, restoreID uuid.UUID) {
+	// Verify this task is actually a restore (registry contains multiple task types)
+	_, err := s.restoreRepository.FindByID(restoreID)
+	if err != nil {
+		// Not a restore task, ignore it
+		return
+	}
+
+	relation, exists := s.restoreToNodeRelations[nodeID]
+	if !exists {
+		s.logger.Warn(
+			"Received completion for unknown node",
+			"nodeId",
+			nodeID,
+			"restoreId",
+			restoreID,
+		)
+		return
+	}
+
+	newRestoreIDs := make([]uuid.UUID, 0)
+	found := false
+	for _, id := range relation.RestoreIDs {
+		if id == restoreID {
+			found = true
+			continue
+		}
+		newRestoreIDs = append(newRestoreIDs, id)
+	}
+
+	if !found {
+		s.logger.Warn(
+			"Restore not found in node's restore list",
+			"nodeId",
+			nodeID,
+			"restoreId",
+			restoreID,
+		)
+		return
+	}
+
+	if len(newRestoreIDs) == 0 {
+		delete(s.restoreToNodeRelations, nodeID)
+	} else {
+		relation.RestoreIDs = newRestoreIDs
+		s.restoreToNodeRelations[nodeID] = relation
+	}
+
+	if err := s.restoreNodesRegistry.DecrementRestoresInProgress(nodeID); err != nil {
+		s.logger.Error(
+			"Failed to decrement restores in progress",
+			"nodeId",
+			nodeID,
+			"restoreId",
+			restoreID,
+			"error",
+			err,
+		)
+	}
+}
+
+func (s *RestoresScheduler) checkDeadNodesAndFailRestores() error {
+	nodes, err := s.restoreNodesRegistry.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.restoreToNodeRelations {
+		if aliveNodeIDs[nodeID] {
+			continue
+		}
+
+		s.logger.Warn(
+			"Node is dead, failing its restores",
+			"nodeId",
+			nodeID,
+			"restoreCount",
+			len(relation.RestoreIDs),
+		)
+
+		for _, restoreID := range relation.RestoreIDs {
+			restore, err := s.restoreRepository.FindByID(restoreID)
+			if err != nil {
+				s.logger.Error(
+					"Failed to find restore for dead node",
+					"nodeId",
+					nodeID,
+					"restoreId",
+					restoreID,
+					"error",
+					err,
+				)
+				continue
+			}
+
+			failMessage := "Restore failed due to node unavailability"
+			restore.FailMessage = &failMessage
+			restore.Status = restores_core.RestoreStatusFailed
+
+			if err := s.restoreRepository.Save(restore); err != nil {
+				s.logger.Error(
+					"Failed to save failed restore for dead node",
+					"nodeId",
+					nodeID,
+					"restoreId",
+					restoreID,
+					"error",
+					err,
+				)
+				continue
+			}
+
+			if err := s.restoreNodesRegistry.DecrementRestoresInProgress(nodeID); err != nil {
+				s.logger.Error(
+					"Failed to decrement restores in progress for dead node",
+					"nodeId",
+					nodeID,
+					"restoreId",
+					restoreID,
+					"error",
+					err,
+				)
+			}
+
+			s.logger.Info(
+				"Failed restore due to dead node",
+				"nodeId",
+				nodeID,
+				"restoreId",
+				restoreID,
+			)
+		}
+
+		delete(s.restoreToNodeRelations, nodeID)
+	}
+
+	return nil
+}

backend/internal/features/restores/restoring/scheduler_test.go

@@ -0,0 +1,856 @@
+package restoring
+
+import (
+	"testing"
+	"time"
+
+	"databasus-backend/internal/config"
+	"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/postgresql"
+	"databasus-backend/internal/features/notifiers"
+	restores_core "databasus-backend/internal/features/restores/core"
+	"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"
+	"databasus-backend/internal/util/encryption"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_CheckDeadNodesAndFailRestores_NodeDies_FailsRestoreAndCleansUpRegistry(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)
+
+	var mockNodeID uuid.UUID
+
+	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.RestoreStatusFailed)
+		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)
+
+		// Clean up mock node
+		if mockNodeID != uuid.Nil {
+			restoreNodesRegistry.UnregisterNodeFromRegistry(RestoreNode{ID: mockNodeID})
+		}
+		cache_utils.ClearAllCache()
+	}()
+
+	backups_config.EnableBackupsForTestDatabase(database.ID, storage)
+
+	// Create a test backup
+	backup := backups.CreateTestBackup(database.ID, storage.ID)
+
+	var err error
+	// Register mock node without subscribing to restores (simulates node crash after registration)
+	mockNodeID = uuid.New()
+	err = CreateMockNodeInRegistry(mockNodeID, 100, time.Now().UTC())
+	assert.NoError(t, err)
+
+	// Create restore and assign to mock node
+	restore := &restores_core.Restore{
+		BackupID: backup.ID,
+		Status:   restores_core.RestoreStatusInProgress,
+	}
+	err = restoreRepository.Save(restore)
+	assert.NoError(t, err)
+
+	// Scheduler assigns restore to mock node
+	err = GetRestoresScheduler().StartRestore(restore.ID, nil)
+	assert.NoError(t, err)
+	time.Sleep(100 * time.Millisecond)
+
+	// Verify Valkey counter was incremented when restore was assigned
+	stats, err := restoreNodesRegistry.GetRestoreNodesStats()
+	assert.NoError(t, err)
+	foundStat := false
+	for _, stat := range stats {
+		if stat.ID == mockNodeID {
+			assert.Equal(t, 1, stat.ActiveRestores)
+			foundStat = true
+			break
+		}
+	}
+	assert.True(t, foundStat, "Node stats should be present")
+
+	// Simulate node death by setting heartbeat older than 2-minute threshold
+	oldHeartbeat := time.Now().UTC().Add(-3 * time.Minute)
+	err = UpdateNodeHeartbeatDirectly(mockNodeID, 100, oldHeartbeat)
+	assert.NoError(t, err)
+
+	// Trigger dead node detection
+	err = GetRestoresScheduler().checkDeadNodesAndFailRestores()
+	assert.NoError(t, err)
+
+	// Verify restore was failed with appropriate error message
+	failedRestore, err := restoreRepository.FindByID(restore.ID)
+	assert.NoError(t, err)
+	assert.Equal(t, restores_core.RestoreStatusFailed, failedRestore.Status)
+	assert.NotNil(t, failedRestore.FailMessage)
+	assert.Contains(t, *failedRestore.FailMessage, "node unavailability")
+
+	// Verify Valkey counter was decremented after restore failed
+	stats, err = restoreNodesRegistry.GetRestoreNodesStats()
+	assert.NoError(t, err)
+	for _, stat := range stats {
+		if stat.ID == mockNodeID {
+			assert.Equal(t, 0, stat.ActiveRestores)
+		}
+	}
+
+	time.Sleep(200 * time.Millisecond)
+}
+
+func Test_OnRestoreCompleted_TaskIsNotRestore_SkipsProcessing(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)
+
+	var mockNodeID uuid.UUID
+
+	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)
+		}
+
+		databases.RemoveTestDatabase(database)
+		time.Sleep(50 * time.Millisecond)
+		storages.RemoveTestStorage(storage.ID)
+		notifiers.RemoveTestNotifier(notifier)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+
+		// Clean up mock node
+		if mockNodeID != uuid.Nil {
+			restoreNodesRegistry.UnregisterNodeFromRegistry(RestoreNode{ID: mockNodeID})
+		}
+		cache_utils.ClearAllCache()
+	}()
+
+	backups_config.EnableBackupsForTestDatabase(database.ID, storage)
+
+	// Create a test backup
+	backup := backups.CreateTestBackup(database.ID, storage.ID)
+
+	// Register mock node
+	mockNodeID = uuid.New()
+	err := CreateMockNodeInRegistry(mockNodeID, 100, time.Now().UTC())
+	assert.NoError(t, err)
+
+	// Create restore and assign to the node
+	restore := &restores_core.Restore{
+		BackupID: backup.ID,
+		Status:   restores_core.RestoreStatusInProgress,
+	}
+	err = restoreRepository.Save(restore)
+	assert.NoError(t, err)
+
+	err = GetRestoresScheduler().StartRestore(restore.ID, nil)
+	assert.NoError(t, err)
+	time.Sleep(100 * time.Millisecond)
+
+	// Get initial state of the registry
+	initialStats, err := restoreNodesRegistry.GetRestoreNodesStats()
+	assert.NoError(t, err)
+	var initialActiveTasks int
+	for _, stat := range initialStats {
+		if stat.ID == mockNodeID {
+			initialActiveTasks = stat.ActiveRestores
+			break
+		}
+	}
+	assert.Equal(t, 1, initialActiveTasks, "Should have 1 active task")
+
+	// Call onRestoreCompleted with a random UUID (not a restore ID)
+	nonRestoreTaskID := uuid.New()
+	GetRestoresScheduler().onRestoreCompleted(mockNodeID, nonRestoreTaskID)
+
+	time.Sleep(100 * time.Millisecond)
+
+	// Verify: Active tasks counter should remain the same (not decremented)
+	stats, err := restoreNodesRegistry.GetRestoreNodesStats()
+	assert.NoError(t, err)
+	for _, stat := range stats {
+		if stat.ID == mockNodeID {
+			assert.Equal(t, initialActiveTasks, stat.ActiveRestores,
+				"Active tasks should not change for non-restore task")
+		}
+	}
+
+	// Verify: restore should still be in progress (not modified)
+	unchangedRestore, err := restoreRepository.FindByID(restore.ID)
+	assert.NoError(t, err)
+	assert.Equal(t, restores_core.RestoreStatusInProgress, unchangedRestore.Status,
+		"Restore status should not change for non-restore task completion")
+
+	// Verify: restoreToNodeRelations should still contain the node
+	scheduler := GetRestoresScheduler()
+	_, exists := scheduler.restoreToNodeRelations[mockNodeID]
+	assert.True(t, exists, "Node should still be in restoreToNodeRelations")
+
+	time.Sleep(200 * time.Millisecond)
+}
+
+func Test_CalculateLeastBusyNode_SelectsNodeWithBestScore(t *testing.T) {
+	t.Run("Nodes with same throughput", func(t *testing.T) {
+		cache_utils.ClearAllCache()
+
+		node1ID := uuid.New()
+		node2ID := uuid.New()
+		node3ID := uuid.New()
+		now := time.Now().UTC()
+
+		defer func() {
+			// Clean up all mock nodes
+			restoreNodesRegistry.UnregisterNodeFromRegistry(RestoreNode{ID: node1ID})
+			restoreNodesRegistry.UnregisterNodeFromRegistry(RestoreNode{ID: node2ID})
+			restoreNodesRegistry.UnregisterNodeFromRegistry(RestoreNode{ID: node3ID})
+			cache_utils.ClearAllCache()
+		}()
+
+		err := CreateMockNodeInRegistry(node1ID, 100, now)
+		assert.NoError(t, err)
+		err = CreateMockNodeInRegistry(node2ID, 100, now)
+		assert.NoError(t, err)
+		err = CreateMockNodeInRegistry(node3ID, 100, now)
+		assert.NoError(t, err)
+
+		for range 5 {
+			err = restoreNodesRegistry.IncrementRestoresInProgress(node1ID)
+			assert.NoError(t, err)
+		}
+
+		for range 2 {
+			err = restoreNodesRegistry.IncrementRestoresInProgress(node2ID)
+			assert.NoError(t, err)
+		}
+
+		for range 8 {
+			err = restoreNodesRegistry.IncrementRestoresInProgress(node3ID)
+			assert.NoError(t, err)
+		}
+
+		leastBusyNodeID, err := GetRestoresScheduler().calculateLeastBusyNode()
+		assert.NoError(t, err)
+		assert.NotNil(t, leastBusyNodeID)
+		assert.Equal(t, node2ID, *leastBusyNodeID)
+	})
+
+	t.Run("Nodes with different throughput", func(t *testing.T) {
+		cache_utils.ClearAllCache()
+
+		node100MBsID := uuid.New()
+		node50MBsID := uuid.New()
+		now := time.Now().UTC()
+
+		defer func() {
+			// Clean up all mock nodes
+			restoreNodesRegistry.UnregisterNodeFromRegistry(RestoreNode{ID: node100MBsID})
+			restoreNodesRegistry.UnregisterNodeFromRegistry(RestoreNode{ID: node50MBsID})
+			cache_utils.ClearAllCache()
+		}()
+
+		err := CreateMockNodeInRegistry(node100MBsID, 100, now)
+		assert.NoError(t, err)
+		err = CreateMockNodeInRegistry(node50MBsID, 50, now)
+		assert.NoError(t, err)
+
+		for range 10 {
+			err = restoreNodesRegistry.IncrementRestoresInProgress(node100MBsID)
+			assert.NoError(t, err)
+		}
+
+		err = restoreNodesRegistry.IncrementRestoresInProgress(node50MBsID)
+		assert.NoError(t, err)
+
+		leastBusyNodeID, err := GetRestoresScheduler().calculateLeastBusyNode()
+		assert.NoError(t, err)
+		assert.NotNil(t, leastBusyNodeID)
+		assert.Equal(t, node50MBsID, *leastBusyNodeID)
+	})
+}
+
+func Test_FailRestoresInProgress_SchedulerStarts_UpdatesStatus(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() {
+		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.RestoreStatusFailed)
+		for _, restore := range restores {
+			restoreRepo.DeleteByID(restore.ID)
+		}
+
+		restores, _ = restoreRepo.FindByStatus(restores_core.RestoreStatusCompleted)
+		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)
+
+	// Create a test backup
+	backup := backups.CreateTestBackup(database.ID, storage.ID)
+
+	// Create two in-progress restores that should be failed on scheduler restart
+	restore1 := &restores_core.Restore{
+		BackupID:  backup.ID,
+		Status:    restores_core.RestoreStatusInProgress,
+		CreatedAt: time.Now().UTC().Add(-30 * time.Minute),
+	}
+	err := restoreRepository.Save(restore1)
+	assert.NoError(t, err)
+
+	restore2 := &restores_core.Restore{
+		BackupID:  backup.ID,
+		Status:    restores_core.RestoreStatusInProgress,
+		CreatedAt: time.Now().UTC().Add(-15 * time.Minute),
+	}
+	err = restoreRepository.Save(restore2)
+	assert.NoError(t, err)
+
+	// Create a completed restore to verify it's not affected by failRestoresInProgress
+	completedRestore := &restores_core.Restore{
+		BackupID:  backup.ID,
+		Status:    restores_core.RestoreStatusCompleted,
+		CreatedAt: time.Now().UTC().Add(-1 * time.Hour),
+	}
+	err = restoreRepository.Save(completedRestore)
+	assert.NoError(t, err)
+
+	// Trigger the scheduler's failRestoresInProgress logic
+	// This should mark in-progress restores as failed
+	err = GetRestoresScheduler().failRestoresInProgress()
+	assert.NoError(t, err)
+
+	// Verify all restores exist and were processed correctly
+	allRestores1, err := restoreRepository.FindByID(restore1.ID)
+	assert.NoError(t, err)
+	allRestores2, err := restoreRepository.FindByID(restore2.ID)
+	assert.NoError(t, err)
+	allRestores3, err := restoreRepository.FindByID(completedRestore.ID)
+	assert.NoError(t, err)
+
+	var failedCount int
+	var completedCount int
+
+	restoresToCheck := []*restores_core.Restore{allRestores1, allRestores2, allRestores3}
+	for _, restore := range restoresToCheck {
+		switch restore.Status {
+		case restores_core.RestoreStatusFailed:
+			failedCount++
+			// Verify fail message indicates application restart
+			assert.NotNil(t, restore.FailMessage)
+			assert.Equal(t, "Restore failed due to application restart", *restore.FailMessage)
+		case restores_core.RestoreStatusCompleted:
+			completedCount++
+		}
+	}
+
+	// Verify correct number of restores in each state
+	assert.Equal(t, 2, failedCount, "Should have 2 failed restores (originally in progress)")
+	assert.Equal(t, 1, completedCount, "Should have 1 completed restore (unchanged)")
+
+	time.Sleep(200 * time.Millisecond)
+}
+
+func Test_StartRestore_RestoreCompletes_DecrementsActiveTaskCount(t *testing.T) {
+	cache_utils.ClearAllCache()
+
+	// Start scheduler so it can handle task completions
+	scheduler := CreateTestRestoresScheduler()
+	schedulerCancel := StartSchedulerForTest(t, scheduler)
+	defer schedulerCancel()
+
+	restorerNode := CreateTestRestorerNode()
+	restorerNode.restoreBackupUsecase = &MockSuccessRestoreUsecase{}
+
+	cancel := StartRestorerNodeForTest(t, restorerNode)
+	defer StopRestorerNodeForTest(t, cancel, restorerNode)
+
+	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.RestoreStatusCompleted)
+		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)
+	}()
+
+	backups_config.EnableBackupsForTestDatabase(database.ID, storage)
+
+	// Create a test backup
+	backup := backups.CreateTestBackup(database.ID, storage.ID)
+
+	// Get initial active task count
+	stats, err := restoreNodesRegistry.GetRestoreNodesStats()
+	assert.NoError(t, err)
+	var initialActiveTasks int
+	for _, stat := range stats {
+		if stat.ID == restorerNode.nodeID {
+			initialActiveTasks = stat.ActiveRestores
+			break
+		}
+	}
+	t.Logf("Initial active tasks: %d", initialActiveTasks)
+
+	// Create and start restore
+	restore := &restores_core.Restore{
+		BackupID: backup.ID,
+		Status:   restores_core.RestoreStatusInProgress,
+	}
+	err = restoreRepository.Save(restore)
+	assert.NoError(t, err)
+
+	err = scheduler.StartRestore(restore.ID, nil)
+	assert.NoError(t, err)
+
+	// Wait for restore to complete
+	WaitForRestoreCompletion(t, restore.ID, 10*time.Second)
+
+	// Verify restore was completed
+	completedRestore, err := restoreRepository.FindByID(restore.ID)
+	assert.NoError(t, err)
+	assert.Equal(t, restores_core.RestoreStatusCompleted, completedRestore.Status)
+
+	// Wait for active task count to decrease
+	decreased := WaitForActiveTasksDecrease(
+		t,
+		restorerNode.nodeID,
+		initialActiveTasks+1,
+		10*time.Second,
+	)
+	assert.True(t, decreased, "Active task count should have decreased after restore completion")
+
+	// Verify final active task count equals initial count
+	finalStats, err := restoreNodesRegistry.GetRestoreNodesStats()
+	assert.NoError(t, err)
+	for _, stat := range finalStats {
+		if stat.ID == restorerNode.nodeID {
+			t.Logf("Final active tasks: %d", stat.ActiveRestores)
+			assert.Equal(t, initialActiveTasks, stat.ActiveRestores,
+				"Active task count should return to initial value after restore completion")
+			break
+		}
+	}
+
+	time.Sleep(200 * time.Millisecond)
+}
+
+func Test_StartRestore_RestoreFails_DecrementsActiveTaskCount(t *testing.T) {
+	cache_utils.ClearAllCache()
+
+	// Start scheduler so it can handle task completions
+	scheduler := CreateTestRestoresScheduler()
+	schedulerCancel := StartSchedulerForTest(t, scheduler)
+	defer schedulerCancel()
+
+	restorerNode := CreateTestRestorerNode()
+	restorerNode.restoreBackupUsecase = &MockFailedRestoreUsecase{}
+
+	cancel := StartRestorerNodeForTest(t, restorerNode)
+	defer StopRestorerNodeForTest(t, cancel, restorerNode)
+
+	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.RestoreStatusFailed)
+		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)
+	}()
+
+	backups_config.EnableBackupsForTestDatabase(database.ID, storage)
+
+	// Create a test backup
+	backup := backups.CreateTestBackup(database.ID, storage.ID)
+
+	// Get initial active task count
+	stats, err := restoreNodesRegistry.GetRestoreNodesStats()
+	assert.NoError(t, err)
+	var initialActiveTasks int
+	for _, stat := range stats {
+		if stat.ID == restorerNode.nodeID {
+			initialActiveTasks = stat.ActiveRestores
+			break
+		}
+	}
+	t.Logf("Initial active tasks: %d", initialActiveTasks)
+
+	// Create and start restore
+	restore := &restores_core.Restore{
+		BackupID: backup.ID,
+		Status:   restores_core.RestoreStatusInProgress,
+	}
+	err = restoreRepository.Save(restore)
+	assert.NoError(t, err)
+
+	err = scheduler.StartRestore(restore.ID, nil)
+	assert.NoError(t, err)
+
+	// Wait for restore to fail
+	WaitForRestoreCompletion(t, restore.ID, 10*time.Second)
+
+	// Verify restore failed
+	failedRestore, err := restoreRepository.FindByID(restore.ID)
+	assert.NoError(t, err)
+	assert.Equal(t, restores_core.RestoreStatusFailed, failedRestore.Status)
+
+	// Wait for active task count to decrease
+	decreased := WaitForActiveTasksDecrease(
+		t,
+		restorerNode.nodeID,
+		initialActiveTasks+1,
+		10*time.Second,
+	)
+	assert.True(t, decreased, "Active task count should have decreased after restore failure")
+
+	// Verify final active task count equals initial count
+	finalStats, err := restoreNodesRegistry.GetRestoreNodesStats()
+	assert.NoError(t, err)
+	for _, stat := range finalStats {
+		if stat.ID == restorerNode.nodeID {
+			t.Logf("Final active tasks: %d", stat.ActiveRestores)
+			assert.Equal(t, initialActiveTasks, stat.ActiveRestores,
+				"Active task count should return to initial value after restore failure")
+			break
+		}
+	}
+
+	time.Sleep(200 * time.Millisecond)
+}
+
+func Test_StartRestore_CredentialsStoredEncryptedInCache(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)
+
+	var mockNodeID uuid.UUID
+
+	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)
+		}
+
+		databases.RemoveTestDatabase(database)
+		time.Sleep(50 * time.Millisecond)
+		storages.RemoveTestStorage(storage.ID)
+		notifiers.RemoveTestNotifier(notifier)
+		workspaces_testing.RemoveTestWorkspace(workspace, router)
+
+		// Clean up mock node
+		if mockNodeID != uuid.Nil {
+			restoreNodesRegistry.UnregisterNodeFromRegistry(RestoreNode{ID: mockNodeID})
+		}
+		cache_utils.ClearAllCache()
+	}()
+
+	backups_config.EnableBackupsForTestDatabase(database.ID, storage)
+
+	// Create a test backup
+	backup := backups.CreateTestBackup(database.ID, storage.ID)
+
+	// Register mock node so scheduler can assign restore to it
+	mockNodeID = uuid.New()
+	err := CreateMockNodeInRegistry(mockNodeID, 100, time.Now().UTC())
+	assert.NoError(t, err)
+
+	// Create restore with plaintext credentials
+	plaintextPassword := "test_password_123"
+	restore := &restores_core.Restore{
+		BackupID: backup.ID,
+		Status:   restores_core.RestoreStatusInProgress,
+	}
+	err = restoreRepository.Save(restore)
+	assert.NoError(t, err)
+
+	// Create PostgreSQL database credentials with plaintext password
+	postgresDB := &postgresql.PostgresqlDatabase{
+		Host:     config.GetEnv().TestLocalhost,
+		Port:     5432,
+		Username: "testuser",
+		Password: plaintextPassword,
+		Database: stringPtr("testdb"),
+		Version:  "16",
+	}
+
+	// Encrypt password using FieldEncryptor (same as production flow)
+	encryptor := encryption.GetFieldEncryptor()
+	err = postgresDB.EncryptSensitiveFields(database.ID, encryptor)
+	assert.NoError(t, err)
+
+	// Verify password was encrypted (different from plaintext)
+	assert.NotEqual(t, plaintextPassword, postgresDB.Password,
+		"Password should be encrypted, not plaintext")
+
+	// Create cache with encrypted credentials
+	dbCache := &RestoreDatabaseCache{
+		PostgresqlDatabase: postgresDB,
+	}
+
+	// Call StartRestore to cache credentials (do NOT start restore node)
+	err = GetRestoresScheduler().StartRestore(restore.ID, dbCache)
+	assert.NoError(t, err)
+
+	// Directly read from cache
+	cachedData := restoreDatabaseCache.Get(restore.ID.String())
+	assert.NotNil(t, cachedData, "Cache entry should exist")
+	assert.NotNil(t, cachedData.PostgresqlDatabase, "PostgreSQL credentials should be cached")
+
+	// Verify password in cache is encrypted (not plaintext)
+	assert.NotEqual(t, plaintextPassword, cachedData.PostgresqlDatabase.Password,
+		"Cached password should be encrypted, not plaintext")
+	assert.Equal(t, postgresDB.Password, cachedData.PostgresqlDatabase.Password,
+		"Cached password should match the encrypted version")
+
+	// Verify other fields are present
+	assert.Equal(t, config.GetEnv().TestLocalhost, cachedData.PostgresqlDatabase.Host)
+	assert.Equal(t, 5432, cachedData.PostgresqlDatabase.Port)
+	assert.Equal(t, "testuser", cachedData.PostgresqlDatabase.Username)
+	assert.Equal(t, "testdb", *cachedData.PostgresqlDatabase.Database)
+
+	time.Sleep(200 * time.Millisecond)
+}
+
+func Test_StartRestore_CredentialsRemovedAfterRestoreStarts(t *testing.T) {
+	cache_utils.ClearAllCache()
+
+	// Start scheduler so it can handle task assignments
+	scheduler := CreateTestRestoresScheduler()
+	schedulerCancel := StartSchedulerForTest(t, scheduler)
+	defer schedulerCancel()
+
+	// Create mock restorer node with credential capture usecase
+	restorerNode := CreateTestRestorerNode()
+	calledChan := make(chan *databases.Database, 1)
+	restorerNode.restoreBackupUsecase = &MockCaptureCredentialsRestoreUsecase{
+		CalledChan:    calledChan,
+		ShouldSucceed: true,
+	}
+
+	cancel := StartRestorerNodeForTest(t, restorerNode)
+	defer StopRestorerNodeForTest(t, cancel, restorerNode)
+
+	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.RestoreStatusCompleted)
+		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)
+
+	// Create a test backup
+	backup := backups.CreateTestBackup(database.ID, storage.ID)
+
+	// Create restore with credentials
+	plaintextPassword := "test_password_456"
+	restore := &restores_core.Restore{
+		BackupID: backup.ID,
+		Status:   restores_core.RestoreStatusInProgress,
+	}
+	err := restoreRepository.Save(restore)
+	assert.NoError(t, err)
+
+	// Create PostgreSQL database credentials
+	// Database field is nil to avoid PopulateDbData trying to connect
+	postgresDB := &postgresql.PostgresqlDatabase{
+		Host:     config.GetEnv().TestLocalhost,
+		Port:     5432,
+		Username: "testuser",
+		Password: plaintextPassword,
+		Database: nil,
+		Version:  "16",
+	}
+
+	// Encrypt password (same as production flow)
+	encryptor := encryption.GetFieldEncryptor()
+	err = postgresDB.EncryptSensitiveFields(database.ID, encryptor)
+	assert.NoError(t, err)
+
+	encryptedPassword := postgresDB.Password
+
+	// Create cache with encrypted credentials
+	dbCache := &RestoreDatabaseCache{
+		PostgresqlDatabase: postgresDB,
+	}
+
+	// Call StartRestore to cache credentials and trigger restore
+	err = scheduler.StartRestore(restore.ID, dbCache)
+	assert.NoError(t, err)
+
+	// Wait for mock usecase to be called (with timeout)
+	var capturedDB *databases.Database
+	select {
+	case capturedDB = <-calledChan:
+		t.Log("Mock usecase was called, credentials captured")
+	case <-time.After(10 * time.Second):
+		t.Fatal("Timeout waiting for mock usecase to be called")
+	}
+
+	// Verify cache is empty after restore starts (credentials were deleted)
+	cacheAfterExecution := restoreDatabaseCache.Get(restore.ID.String())
+	assert.Nil(t, cacheAfterExecution, "Cache should be empty after restore execution starts")
+
+	// Verify mock received valid credentials
+	assert.NotNil(t, capturedDB, "Captured database should not be nil")
+	assert.NotNil(t, capturedDB.Postgresql, "PostgreSQL credentials should be provided to usecase")
+	assert.Equal(t, config.GetEnv().TestLocalhost, capturedDB.Postgresql.Host)
+	assert.Equal(t, 5432, capturedDB.Postgresql.Port)
+	assert.Equal(t, "testuser", capturedDB.Postgresql.Username)
+	assert.NotEmpty(t, capturedDB.Postgresql.Password, "Password should be provided to usecase")
+
+	// Note: Password at this point may still be encrypted because PopulateDbData
+	// is called after the mock captures it. The important thing is that credentials
+	// were provided to the usecase despite cache being deleted.
+	t.Logf("Encrypted password in cache: %s", encryptedPassword)
+	t.Logf("Password received by usecase: %s", capturedDB.Postgresql.Password)
+
+	// Wait for restore to complete
+	WaitForRestoreCompletion(t, restore.ID, 10*time.Second)
+
+	// Verify restore was completed
+	completedRestore, err := restoreRepository.FindByID(restore.ID)
+	assert.NoError(t, err)
+	assert.Equal(t, restores_core.RestoreStatusCompleted, completedRestore.Status)
+
+	time.Sleep(200 * time.Millisecond)
+}

backend/internal/features/restores/restoring/testing.go

@@ -0,0 +1,342 @@
+package restoring
+
+import (
+	"context"
+	"fmt"
+	"sync"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+
+	"databasus-backend/internal/config"
+	"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/postgresql"
+	restores_core "databasus-backend/internal/features/restores/core"
+	"databasus-backend/internal/features/restores/usecases"
+	"databasus-backend/internal/features/storages"
+	tasks_cancellation "databasus-backend/internal/features/tasks/cancellation"
+	workspaces_controllers "databasus-backend/internal/features/workspaces/controllers"
+	workspaces_testing "databasus-backend/internal/features/workspaces/testing"
+	"databasus-backend/internal/util/encryption"
+	"databasus-backend/internal/util/logger"
+)
+
+func CreateTestRouter() *gin.Engine {
+	router := workspaces_testing.CreateTestRouter(
+		workspaces_controllers.GetWorkspaceController(),
+		workspaces_controllers.GetMembershipController(),
+		databases.GetDatabaseController(),
+		backups_config.GetBackupConfigController(),
+	)
+
+	return router
+}
+
+func CreateTestRestorerNode() *RestorerNode {
+	return &RestorerNode{
+		nodeID:               uuid.New(),
+		databaseService:      databases.GetDatabaseService(),
+		backupService:        backups.GetBackupService(),
+		fieldEncryptor:       encryption.GetFieldEncryptor(),
+		restoreRepository:    restoreRepository,
+		backupConfigService:  backups_config.GetBackupConfigService(),
+		storageService:       storages.GetStorageService(),
+		restoreNodesRegistry: restoreNodesRegistry,
+		logger:               logger.GetLogger(),
+		restoreBackupUsecase: usecases.GetRestoreBackupUsecase(),
+		cacheUtil:            restoreDatabaseCache,
+		restoreCancelManager: tasks_cancellation.GetTaskCancelManager(),
+		lastHeartbeat:        time.Time{},
+		runOnce:              sync.Once{},
+		hasRun:               atomic.Bool{},
+	}
+}
+
+func CreateTestRestorerNodeWithUsecase(usecase restores_core.RestoreBackupUsecase) *RestorerNode {
+	return &RestorerNode{
+		nodeID:               uuid.New(),
+		databaseService:      databases.GetDatabaseService(),
+		backupService:        backups.GetBackupService(),
+		fieldEncryptor:       encryption.GetFieldEncryptor(),
+		restoreRepository:    restoreRepository,
+		backupConfigService:  backups_config.GetBackupConfigService(),
+		storageService:       storages.GetStorageService(),
+		restoreNodesRegistry: restoreNodesRegistry,
+		logger:               logger.GetLogger(),
+		restoreBackupUsecase: usecase,
+		cacheUtil:            restoreDatabaseCache,
+		restoreCancelManager: tasks_cancellation.GetTaskCancelManager(),
+		lastHeartbeat:        time.Time{},
+		runOnce:              sync.Once{},
+		hasRun:               atomic.Bool{},
+	}
+}
+
+func CreateTestRestoresScheduler() *RestoresScheduler {
+	return &RestoresScheduler{
+		restoreRepository,
+		backups.GetBackupService(),
+		storages.GetStorageService(),
+		backups_config.GetBackupConfigService(),
+		restoreNodesRegistry,
+		time.Now().UTC(),
+		logger.GetLogger(),
+		make(map[uuid.UUID]RestoreToNodeRelation),
+		restorerNode,
+		restoreDatabaseCache,
+		uuid.Nil,
+		sync.Once{},
+		atomic.Bool{},
+	}
+}
+
+// WaitForRestoreCompletion waits for a restore to be completed (or failed)
+func WaitForRestoreCompletion(
+	t *testing.T,
+	restoreID uuid.UUID,
+	timeout time.Duration,
+) {
+	deadline := time.Now().UTC().Add(timeout)
+
+	for time.Now().UTC().Before(deadline) {
+		restore, err := restoreRepository.FindByID(restoreID)
+		if err != nil {
+			t.Logf("WaitForRestoreCompletion: error finding restore: %v", err)
+			time.Sleep(50 * time.Millisecond)
+			continue
+		}
+
+		t.Logf("WaitForRestoreCompletion: restore status: %s", restore.Status)
+
+		if restore.Status == restores_core.RestoreStatusCompleted ||
+			restore.Status == restores_core.RestoreStatusFailed {
+			t.Logf(
+				"WaitForRestoreCompletion: restore finished with status %s",
+				restore.Status,
+			)
+			return
+		}
+
+		time.Sleep(50 * time.Millisecond)
+	}
+
+	t.Logf("WaitForRestoreCompletion: timeout waiting for restore to complete")
+}
+
+// StartRestorerNodeForTest starts a RestorerNode in a goroutine for testing.
+// The node registers itself in the registry and subscribes to restore assignments.
+// Returns a context cancel function that should be deferred to stop the node.
+func StartRestorerNodeForTest(t *testing.T, restorerNode *RestorerNode) context.CancelFunc {
+	ctx, cancel := context.WithCancel(context.Background())
+
+	done := make(chan struct{})
+
+	go func() {
+		restorerNode.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 := restoreNodesRegistry.GetAvailableNodes()
+		if err == nil {
+			for _, node := range nodes {
+				if node.ID == restorerNode.nodeID {
+					t.Logf("RestorerNode registered in registry: %s", restorerNode.nodeID)
+
+					return func() {
+						cancel()
+						select {
+						case <-done:
+							t.Log("RestorerNode stopped gracefully")
+						case <-time.After(2 * time.Second):
+							t.Log("RestorerNode stop timeout")
+						}
+					}
+				}
+			}
+		}
+		time.Sleep(50 * time.Millisecond)
+	}
+
+	t.Fatalf("RestorerNode failed to register in registry within timeout")
+	return nil
+}
+
+// StartSchedulerForTest starts the RestoresScheduler in a goroutine for testing.
+// The scheduler subscribes to task completions and manages restore lifecycle.
+// Returns a context cancel function that should be deferred to stop the scheduler.
+func StartSchedulerForTest(t *testing.T, scheduler *RestoresScheduler) 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("RestoresScheduler started")
+
+	return func() {
+		cancel()
+		select {
+		case <-done:
+			t.Log("RestoresScheduler stopped gracefully")
+		case <-time.After(2 * time.Second):
+			t.Log("RestoresScheduler stop timeout")
+		}
+	}
+}
+
+// StopRestorerNodeForTest stops the RestorerNode by canceling its context.
+// It waits for the node to unregister from the registry.
+func StopRestorerNodeForTest(t *testing.T, cancel context.CancelFunc, restorerNode *RestorerNode) {
+	cancel()
+
+	// Wait for node to unregister from registry
+	deadline := time.Now().UTC().Add(2 * time.Second)
+	for time.Now().UTC().Before(deadline) {
+		nodes, err := restoreNodesRegistry.GetAvailableNodes()
+		if err == nil {
+			found := false
+			for _, node := range nodes {
+				if node.ID == restorerNode.nodeID {
+					found = true
+					break
+				}
+			}
+			if !found {
+				t.Logf("RestorerNode unregistered from registry: %s", restorerNode.nodeID)
+				return
+			}
+		}
+		time.Sleep(50 * time.Millisecond)
+	}
+
+	t.Logf("RestorerNode stop completed for %s", restorerNode.nodeID)
+}
+
+func CreateMockNodeInRegistry(nodeID uuid.UUID, throughputMBs int, lastHeartbeat time.Time) error {
+	restoreNode := RestoreNode{
+		ID:            nodeID,
+		ThroughputMBs: throughputMBs,
+		LastHeartbeat: lastHeartbeat,
+	}
+
+	return restoreNodesRegistry.HearthbeatNodeInRegistry(lastHeartbeat, restoreNode)
+}
+
+func UpdateNodeHeartbeatDirectly(
+	nodeID uuid.UUID,
+	throughputMBs int,
+	lastHeartbeat time.Time,
+) error {
+	restoreNode := RestoreNode{
+		ID:            nodeID,
+		ThroughputMBs: throughputMBs,
+		LastHeartbeat: lastHeartbeat,
+	}
+
+	return restoreNodesRegistry.HearthbeatNodeInRegistry(lastHeartbeat, restoreNode)
+}
+
+func GetNodeFromRegistry(nodeID uuid.UUID) (*RestoreNode, error) {
+	nodes, err := restoreNodesRegistry.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 := restoreNodesRegistry.GetRestoreNodesStats()
+		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.ActiveRestores,
+					initialCount,
+				)
+				if stat.ActiveRestores < initialCount {
+					t.Logf(
+						"WaitForActiveTasksDecrease: active tasks decreased from %d to %d",
+						initialCount,
+						stat.ActiveRestores,
+					)
+					return true
+				}
+				break
+			}
+		}
+
+		time.Sleep(500 * time.Millisecond)
+	}
+
+	t.Logf("WaitForActiveTasksDecrease: timeout waiting for active tasks to decrease")
+	return false
+}
+
+// CreateTestRestore creates a test restore with the given backup and status
+func CreateTestRestore(
+	t *testing.T,
+	backup *backups_core.Backup,
+	status restores_core.RestoreStatus,
+) *restores_core.Restore {
+	restore := &restores_core.Restore{
+		BackupID: backup.ID,
+		Status:   status,
+		PostgresqlDatabase: &postgresql.PostgresqlDatabase{
+			Host:     config.GetEnv().TestLocalhost,
+			Port:     5432,
+			Username: "test",
+			Password: "test",
+			Database: stringPtr("testdb"),
+			Version:  "16",
+		},
+	}
+
+	err := restoreRepository.Save(restore)
+	if err != nil {
+		t.Fatalf("Failed to create test restore: %v", err)
+	}
+
+	return restore
+}
+
+func stringPtr(s string) *string {
+	return &s
+}

backend/internal/features/restores/service.go

@@ -1,16 +1,18 @@
 package restores
 
 import (
+	"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/disk"
-	"databasus-backend/internal/features/restores/enums"
-	"databasus-backend/internal/features/restores/models"
+	restores_core "databasus-backend/internal/features/restores/core"
+	"databasus-backend/internal/features/restores/restoring"
 	"databasus-backend/internal/features/restores/usecases"
 	"databasus-backend/internal/features/storages"
+	tasks_cancellation "databasus-backend/internal/features/tasks/cancellation"
 	users_models "databasus-backend/internal/features/users/models"
 	workspaces_services "databasus-backend/internal/features/workspaces/services"
 	"databasus-backend/internal/util/encryption"
@@ -25,7 +27,7 @@ import (
 
 type RestoreService struct {
 	backupService        *backups.BackupService
-	restoreRepository    *RestoreRepository
+	restoreRepository    *restores_core.RestoreRepository
 	storageService       *storages.StorageService
 	backupConfigService  *backups_config.BackupConfigService
 	restoreBackupUsecase *usecases.RestoreBackupUsecase
@@ -35,6 +37,7 @@ type RestoreService struct {
 	auditLogService      *audit_logs.AuditLogService
 	fieldEncryptor       encryption.FieldEncryptor
 	diskService          *disk.DiskService
+	taskCancelManager    *tasks_cancellation.TaskCancelManager
 }
 
 func (s *RestoreService) OnBeforeBackupRemove(backup *backups_core.Backup) error {
@@ -44,7 +47,7 @@ func (s *RestoreService) OnBeforeBackupRemove(backup *backups_core.Backup) error
 	}
 
 	for _, restore := range restores {
-		if restore.Status == enums.RestoreStatusInProgress {
+		if restore.Status == restores_core.RestoreStatusInProgress {
 			return errors.New("restore is in progress, backup cannot be removed")
 		}
 	}
@@ -61,7 +64,7 @@ func (s *RestoreService) OnBeforeBackupRemove(backup *backups_core.Backup) error
 func (s *RestoreService) GetRestores(
 	user *users_models.User,
 	backupID uuid.UUID,
-) ([]*models.Restore, error) {
+) ([]*restores_core.Restore, error) {
 	backup, err := s.backupService.GetBackup(backupID)
 	if err != nil {
 		return nil, err
@@ -93,7 +96,7 @@ func (s *RestoreService) GetRestores(
 func (s *RestoreService) RestoreBackupWithAuth(
 	user *users_models.User,
 	backupID uuid.UUID,
-	requestDTO RestoreBackupRequest,
+	requestDTO restores_core.RestoreBackupRequest,
 ) error {
 	backup, err := s.backupService.GetBackup(backupID)
 	if err != nil {
@@ -125,6 +128,13 @@ func (s *RestoreService) RestoreBackupWithAuth(
 		return err
 	}
 
+	if config.GetEnv().IsCloud {
+		// in cloud mode we use only single thread mode,
+		// because otherwise we will exhaust local storage
+		// space (instead of streaming from S3 directly to DB)
+		requestDTO.PostgresqlDatabase.CpuCount = 1
+	}
+
 	if err := s.validateVersionCompatibility(backupDatabase, requestDTO); err != nil {
 		return err
 	}
@@ -134,11 +144,50 @@ func (s *RestoreService) RestoreBackupWithAuth(
 		return err
 	}
 
-	go func() {
-		if err := s.RestoreBackup(backup, requestDTO); err != nil {
-			s.logger.Error("Failed to restore backup", "error", err)
+	// Validate no parallel restores for the same database
+	if err := s.validateNoParallelRestores(backup.DatabaseID); err != nil {
+		return err
+	}
+
+	// Create restore record with the request configuration
+	restore := restores_core.Restore{
+		ID:                 uuid.New(),
+		Status:             restores_core.RestoreStatusInProgress,
+		BackupID:           backup.ID,
+		Backup:             backup,
+		CreatedAt:          time.Now().UTC(),
+		RestoreDurationMs:  0,
+		FailMessage:        nil,
+		PostgresqlDatabase: requestDTO.PostgresqlDatabase,
+		MysqlDatabase:      requestDTO.MysqlDatabase,
+		MariadbDatabase:    requestDTO.MariadbDatabase,
+		MongodbDatabase:    requestDTO.MongodbDatabase,
+	}
+
+	if err := s.restoreRepository.Save(&restore); err != nil {
+		return err
+	}
+
+	// Prepare database cache with credentials from the request
+	dbCache := &restoring.RestoreDatabaseCache{
+		PostgresqlDatabase: requestDTO.PostgresqlDatabase,
+		MysqlDatabase:      requestDTO.MysqlDatabase,
+		MariadbDatabase:    requestDTO.MariadbDatabase,
+		MongodbDatabase:    requestDTO.MongodbDatabase,
+	}
+
+	// Trigger restore via scheduler
+	scheduler := restoring.GetRestoresScheduler()
+	if err := scheduler.StartRestore(restore.ID, dbCache); err != nil {
+		// Mark restore as failed if we can't schedule it
+		failMsg := fmt.Sprintf("Failed to schedule restore: %v", err)
+		restore.FailMessage = &failMsg
+		restore.Status = restores_core.RestoreStatusFailed
+		if saveErr := s.restoreRepository.Save(&restore); saveErr != nil {
+			s.logger.Error("Failed to save restore after scheduling error", "error", saveErr)
 		}
-	}()
+		return err
+	}
 
 	s.auditLogService.WriteAuditLog(
 		fmt.Sprintf(
@@ -153,127 +202,9 @@ func (s *RestoreService) RestoreBackupWithAuth(
 	return nil
 }
 
-func (s *RestoreService) RestoreBackup(
-	backup *backups_core.Backup,
-	requestDTO RestoreBackupRequest,
-) error {
-	if backup.Status != backups_core.BackupStatusCompleted {
-		return errors.New("backup is not completed")
-	}
-
-	database, err := s.databaseService.GetDatabaseByID(backup.DatabaseID)
-	if err != nil {
-		return err
-	}
-
-	switch database.Type {
-	case databases.DatabaseTypePostgres:
-		if requestDTO.PostgresqlDatabase == nil {
-			return errors.New("postgresql database is required")
-		}
-	case databases.DatabaseTypeMysql:
-		if requestDTO.MysqlDatabase == nil {
-			return errors.New("mysql database is required")
-		}
-	case databases.DatabaseTypeMariadb:
-		if requestDTO.MariadbDatabase == nil {
-			return errors.New("mariadb database is required")
-		}
-	case databases.DatabaseTypeMongodb:
-		if requestDTO.MongodbDatabase == nil {
-			return errors.New("mongodb database is required")
-		}
-	}
-
-	restore := models.Restore{
-		ID:     uuid.New(),
-		Status: enums.RestoreStatusInProgress,
-
-		BackupID: backup.ID,
-		Backup:   backup,
-
-		CreatedAt:         time.Now().UTC(),
-		RestoreDurationMs: 0,
-
-		FailMessage: nil,
-	}
-
-	// Save the restore first
-	if err := s.restoreRepository.Save(&restore); err != nil {
-		return err
-	}
-
-	// Save the restore again to include the postgresql database
-	if err := s.restoreRepository.Save(&restore); err != nil {
-		return err
-	}
-
-	storage, err := s.storageService.GetStorageByID(backup.StorageID)
-	if err != nil {
-		return err
-	}
-
-	backupConfig, err := s.backupConfigService.GetBackupConfigByDbId(
-		database.ID,
-	)
-	if err != nil {
-		return err
-	}
-
-	start := time.Now().UTC()
-
-	restoringToDB := &databases.Database{
-		Type:       database.Type,
-		Postgresql: requestDTO.PostgresqlDatabase,
-		Mysql:      requestDTO.MysqlDatabase,
-		Mariadb:    requestDTO.MariadbDatabase,
-		Mongodb:    requestDTO.MongodbDatabase,
-	}
-
-	if err := restoringToDB.PopulateDbData(s.logger, s.fieldEncryptor); err != nil {
-		return fmt.Errorf("failed to auto-detect database data: %w", err)
-	}
-
-	isExcludeExtensions := false
-	if requestDTO.PostgresqlDatabase != nil {
-		isExcludeExtensions = requestDTO.PostgresqlDatabase.IsExcludeExtensions
-	}
-
-	err = s.restoreBackupUsecase.Execute(
-		backupConfig,
-		restore,
-		database,
-		restoringToDB,
-		backup,
-		storage,
-		isExcludeExtensions,
-	)
-	if err != nil {
-		errMsg := err.Error()
-		restore.FailMessage = &errMsg
-		restore.Status = enums.RestoreStatusFailed
-		restore.RestoreDurationMs = time.Since(start).Milliseconds()
-
-		if err := s.restoreRepository.Save(&restore); err != nil {
-			return err
-		}
-
-		return err
-	}
-
-	restore.Status = enums.RestoreStatusCompleted
-	restore.RestoreDurationMs = time.Since(start).Milliseconds()
-
-	if err := s.restoreRepository.Save(&restore); err != nil {
-		return err
-	}
-
-	return nil
-}
-
 func (s *RestoreService) validateVersionCompatibility(
 	backupDatabase *databases.Database,
-	requestDTO RestoreBackupRequest,
+	requestDTO restores_core.RestoreBackupRequest,
 ) error {
 	// populate version
 	if requestDTO.MariadbDatabase != nil {
@@ -372,7 +303,7 @@ func (s *RestoreService) validateVersionCompatibility(
 
 func (s *RestoreService) validateDiskSpace(
 	backup *backups_core.Backup,
-	requestDTO RestoreBackupRequest,
+	requestDTO restores_core.RestoreBackupRequest,
 ) error {
 	// Only validate disk space for PostgreSQL when file-based restore is needed:
 	// - CPU > 1 (parallel jobs require file)
@@ -424,3 +355,71 @@ func (s *RestoreService) validateDiskSpace(
 
 	return nil
 }
+
+func (s *RestoreService) validateNoParallelRestores(databaseID uuid.UUID) error {
+	inProgressRestores, err := s.restoreRepository.FindInProgressRestoresByDatabaseID(databaseID)
+	if err != nil {
+		return fmt.Errorf("failed to check for in-progress restores: %w", err)
+	}
+
+	isInProgress := len(inProgressRestores) > 0
+	if isInProgress {
+		return errors.New(
+			"another restore is already in progress for this database. Please wait for it to complete or cancel it before starting a new restore",
+		)
+	}
+
+	return nil
+}
+
+func (s *RestoreService) CancelRestore(
+	user *users_models.User,
+	restoreID uuid.UUID,
+) error {
+	restore, err := s.restoreRepository.FindByID(restoreID)
+	if err != nil {
+		return err
+	}
+
+	backup, err := s.backupService.GetBackup(restore.BackupID)
+	if err != nil {
+		return err
+	}
+
+	database, err := s.databaseService.GetDatabaseByID(backup.DatabaseID)
+	if err != nil {
+		return err
+	}
+
+	if database.WorkspaceID == nil {
+		return errors.New("cannot cancel restore for database without workspace")
+	}
+
+	canManage, err := s.workspaceService.CanUserManageDBs(*database.WorkspaceID, user)
+	if err != nil {
+		return err
+	}
+	if !canManage {
+		return errors.New("insufficient permissions to cancel restore for this database")
+	}
+
+	if restore.Status != restores_core.RestoreStatusInProgress {
+		return errors.New("restore is not in progress")
+	}
+
+	if err := s.taskCancelManager.CancelTask(restoreID); err != nil {
+		return err
+	}
+
+	s.auditLogService.WriteAuditLog(
+		fmt.Sprintf(
+			"Restore cancelled for database: %s (ID: %s)",
+			database.Name,
+			restoreID.String(),
+		),
+		&user.ID,
+		database.WorkspaceID,
+	)
+
+	return nil
+}

backend/internal/features/restores/testing.go

@@ -0,0 +1,51 @@
+package restores
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+
+	"databasus-backend/internal/features/backups/backups"
+	backups_config "databasus-backend/internal/features/backups/config"
+	"databasus-backend/internal/features/databases"
+	"databasus-backend/internal/features/restores/restoring"
+	workspaces_controllers "databasus-backend/internal/features/workspaces/controllers"
+	workspaces_testing "databasus-backend/internal/features/workspaces/testing"
+)
+
+func CreateTestRouter() *gin.Engine {
+	router := workspaces_testing.CreateTestRouter(
+		workspaces_controllers.GetWorkspaceController(),
+		workspaces_controllers.GetMembershipController(),
+		databases.GetDatabaseController(),
+		backups_config.GetBackupConfigController(),
+		backups.GetBackupController(),
+		GetRestoreController(),
+	)
+
+	v1 := router.Group("/api/v1")
+	backups.GetBackupController().RegisterPublicRoutes(v1)
+
+	return router
+}
+
+func SetupMockRestoreNode(t *testing.T) (uuid.UUID, context.CancelFunc) {
+	nodeID := uuid.New()
+	err := restoring.CreateMockNodeInRegistry(
+		nodeID,
+		100,
+		time.Now().UTC(),
+	)
+	if err != nil {
+		t.Fatalf("Failed to create mock node: %v", err)
+	}
+
+	cleanup := func() {
+		// Node will expire naturally from registry
+	}
+
+	return nodeID, cleanup
+}

backend/internal/features/restores/usecases/mariadb/restore_backup_uc.go

@@ -24,7 +24,7 @@ import (
 	"databasus-backend/internal/features/databases"
 	mariadbtypes "databasus-backend/internal/features/databases/databases/mariadb"
 	encryption_secrets "databasus-backend/internal/features/encryption/secrets"
-	"databasus-backend/internal/features/restores/models"
+	restores_core "databasus-backend/internal/features/restores/core"
 	"databasus-backend/internal/features/storages"
 	util_encryption "databasus-backend/internal/util/encryption"
 	"databasus-backend/internal/util/tools"
@@ -36,10 +36,11 @@ type RestoreMariadbBackupUsecase struct {
 }
 
 func (uc *RestoreMariadbBackupUsecase) Execute(
+	parentCtx context.Context,
 	originalDB *databases.Database,
 	restoringToDB *databases.Database,
 	backupConfig *backups_config.BackupConfig,
-	restore models.Restore,
+	restore restores_core.Restore,
 	backup *backups_core.Backup,
 	storage *storages.Storage,
 ) error {
@@ -79,6 +80,7 @@ func (uc *RestoreMariadbBackupUsecase) Execute(
 	}
 
 	return uc.restoreFromStorage(
+		parentCtx,
 		originalDB,
 		tools.GetMariadbExecutable(
 			tools.MariadbExecutableMariadb,
@@ -95,6 +97,7 @@ func (uc *RestoreMariadbBackupUsecase) Execute(
 }
 
 func (uc *RestoreMariadbBackupUsecase) restoreFromStorage(
+	parentCtx context.Context,
 	database *databases.Database,
 	mariadbBin string,
 	args []string,
@@ -103,7 +106,7 @@ func (uc *RestoreMariadbBackupUsecase) restoreFromStorage(
 	storage *storages.Storage,
 	mdbConfig *mariadbtypes.MariadbDatabase,
 ) error {
-	ctx, cancel := context.WithTimeout(context.Background(), 60*time.Minute)
+	ctx, cancel := context.WithTimeout(parentCtx, 60*time.Minute)
 	defer cancel()
 
 	go func() {
@@ -113,6 +116,9 @@ func (uc *RestoreMariadbBackupUsecase) restoreFromStorage(
 			select {
 			case <-ctx.Done():
 				return
+			case <-parentCtx.Done():
+				cancel()
+				return
 			case <-ticker.C:
 				if config.IsShouldShutdown() {
 					cancel()
@@ -213,6 +219,15 @@ func (uc *RestoreMariadbBackupUsecase) executeMariadbRestore(
 	waitErr := cmd.Wait()
 	stderrOutput := <-stderrCh
 
+	// Check for cancellation
+	select {
+	case <-ctx.Done():
+		if errors.Is(ctx.Err(), context.Canceled) {
+			return fmt.Errorf("restore cancelled")
+		}
+	default:
+	}
+
 	if config.IsShouldShutdown() {
 		return fmt.Errorf("restore cancelled due to shutdown")
 	}

backend/internal/features/restores/usecases/mongodb/restore_backup_uc.go

@@ -20,7 +20,7 @@ import (
 	"databasus-backend/internal/features/databases"
 	mongodbtypes "databasus-backend/internal/features/databases/databases/mongodb"
 	encryption_secrets "databasus-backend/internal/features/encryption/secrets"
-	"databasus-backend/internal/features/restores/models"
+	restores_core "databasus-backend/internal/features/restores/core"
 	"databasus-backend/internal/features/storages"
 	util_encryption "databasus-backend/internal/util/encryption"
 	"databasus-backend/internal/util/tools"
@@ -36,10 +36,11 @@ type RestoreMongodbBackupUsecase struct {
 }
 
 func (uc *RestoreMongodbBackupUsecase) Execute(
+	parentCtx context.Context,
 	originalDB *databases.Database,
 	restoringToDB *databases.Database,
 	backupConfig *backups_config.BackupConfig,
-	restore models.Restore,
+	restore restores_core.Restore,
 	backup *backups_core.Backup,
 	storage *storages.Storage,
 ) error {
@@ -76,6 +77,7 @@ func (uc *RestoreMongodbBackupUsecase) Execute(
 	args := uc.buildMongorestoreArgs(mdb, decryptedPassword, sourceDatabase)
 
 	return uc.restoreFromStorage(
+		parentCtx,
 		tools.GetMongodbExecutable(
 			tools.MongodbExecutableMongorestore,
 			config.GetEnv().EnvMode,
@@ -122,12 +124,13 @@ func (uc *RestoreMongodbBackupUsecase) buildMongorestoreArgs(
 }
 
 func (uc *RestoreMongodbBackupUsecase) restoreFromStorage(
+	parentCtx context.Context,
 	mongorestoreBin string,
 	args []string,
 	backup *backups_core.Backup,
 	storage *storages.Storage,
 ) error {
-	ctx, cancel := context.WithTimeout(context.Background(), restoreTimeout)
+	ctx, cancel := context.WithTimeout(parentCtx, restoreTimeout)
 	defer cancel()
 
 	go func() {
@@ -137,6 +140,9 @@ func (uc *RestoreMongodbBackupUsecase) restoreFromStorage(
 			select {
 			case <-ctx.Done():
 				return
+			case <-parentCtx.Done():
+				cancel()
+				return
 			case <-ticker.C:
 				if config.IsShouldShutdown() {
 					cancel()
@@ -218,6 +224,15 @@ func (uc *RestoreMongodbBackupUsecase) executeMongoRestore(
 	waitErr := cmd.Wait()
 	stderrOutput := <-stderrCh
 
+	// Check for cancellation
+	select {
+	case <-ctx.Done():
+		if errors.Is(ctx.Err(), context.Canceled) {
+			return fmt.Errorf("restore cancelled")
+		}
+	default:
+	}
+
 	if config.IsShouldShutdown() {
 		return fmt.Errorf("restore cancelled due to shutdown")
 	}

backend/internal/features/restores/usecases/mysql/restore_backup_uc.go

@@ -24,7 +24,7 @@ import (
 	"databasus-backend/internal/features/databases"
 	mysqltypes "databasus-backend/internal/features/databases/databases/mysql"
 	encryption_secrets "databasus-backend/internal/features/encryption/secrets"
-	"databasus-backend/internal/features/restores/models"
+	restores_core "databasus-backend/internal/features/restores/core"
 	"databasus-backend/internal/features/storages"
 	util_encryption "databasus-backend/internal/util/encryption"
 	"databasus-backend/internal/util/tools"
@@ -36,10 +36,11 @@ type RestoreMysqlBackupUsecase struct {
 }
 
 func (uc *RestoreMysqlBackupUsecase) Execute(
+	parentCtx context.Context,
 	originalDB *databases.Database,
 	restoringToDB *databases.Database,
 	backupConfig *backups_config.BackupConfig,
-	restore models.Restore,
+	restore restores_core.Restore,
 	backup *backups_core.Backup,
 	storage *storages.Storage,
 ) error {
@@ -78,6 +79,7 @@ func (uc *RestoreMysqlBackupUsecase) Execute(
 	}
 
 	return uc.restoreFromStorage(
+		parentCtx,
 		originalDB,
 		tools.GetMysqlExecutable(
 			my.Version,
@@ -94,6 +96,7 @@ func (uc *RestoreMysqlBackupUsecase) Execute(
 }
 
 func (uc *RestoreMysqlBackupUsecase) restoreFromStorage(
+	parentCtx context.Context,
 	database *databases.Database,
 	mysqlBin string,
 	args []string,
@@ -102,7 +105,7 @@ func (uc *RestoreMysqlBackupUsecase) restoreFromStorage(
 	storage *storages.Storage,
 	myConfig *mysqltypes.MysqlDatabase,
 ) error {
-	ctx, cancel := context.WithTimeout(context.Background(), 60*time.Minute)
+	ctx, cancel := context.WithTimeout(parentCtx, 60*time.Minute)
 	defer cancel()
 
 	go func() {
@@ -112,6 +115,9 @@ func (uc *RestoreMysqlBackupUsecase) restoreFromStorage(
 			select {
 			case <-ctx.Done():
 				return
+			case <-parentCtx.Done():
+				cancel()
+				return
 			case <-ticker.C:
 				if config.IsShouldShutdown() {
 					cancel()
@@ -204,6 +210,15 @@ func (uc *RestoreMysqlBackupUsecase) executeMysqlRestore(
 	waitErr := cmd.Wait()
 	stderrOutput := <-stderrCh
 
+	// Check for cancellation
+	select {
+	case <-ctx.Done():
+		if errors.Is(ctx.Err(), context.Canceled) {
+			return fmt.Errorf("restore cancelled")
+		}
+	default:
+	}
+
 	if config.IsShouldShutdown() {
 		return fmt.Errorf("restore cancelled due to shutdown")
 	}

backend/internal/features/restores/usecases/postgresql/restore_backup_uc.go

@@ -21,7 +21,7 @@ import (
 	"databasus-backend/internal/features/databases"
 	pgtypes "databasus-backend/internal/features/databases/databases/postgresql"
 	encryption_secrets "databasus-backend/internal/features/encryption/secrets"
-	"databasus-backend/internal/features/restores/models"
+	restores_core "databasus-backend/internal/features/restores/core"
 	"databasus-backend/internal/features/storages"
 	util_encryption "databasus-backend/internal/util/encryption"
 	"databasus-backend/internal/util/tools"
@@ -35,10 +35,11 @@ type RestorePostgresqlBackupUsecase struct {
 }
 
 func (uc *RestorePostgresqlBackupUsecase) Execute(
+	parentCtx context.Context,
 	originalDB *databases.Database,
 	restoringToDB *databases.Database,
 	backupConfig *backups_config.BackupConfig,
-	restore models.Restore,
+	restore restores_core.Restore,
 	backup *backups_core.Backup,
 	storage *storages.Storage,
 	isExcludeExtensions bool,
@@ -64,6 +65,13 @@ func (uc *RestorePostgresqlBackupUsecase) Execute(
 		return fmt.Errorf("target database name is required for pg_restore")
 	}
 
+	// Validate CPU count constraint for cloud environments
+	if config.GetEnv().IsCloud && pg.CpuCount > 1 {
+		return fmt.Errorf(
+			"parallel restore (CPU count > 1) is not supported in cloud mode due to storage constraints. Please use CPU count = 1",
+		)
+	}
+
 	pgBin := tools.GetPostgresqlExecutable(
 		pg.Version,
 		"pg_restore",
@@ -73,6 +81,7 @@ func (uc *RestorePostgresqlBackupUsecase) Execute(
 
 	// All PostgreSQL backups are now custom format (-Fc)
 	return uc.restoreCustomType(
+		parentCtx,
 		originalDB,
 		pgBin,
 		backup,
@@ -84,6 +93,7 @@ func (uc *RestorePostgresqlBackupUsecase) Execute(
 
 // restoreCustomType restores a backup in custom type (-Fc)
 func (uc *RestorePostgresqlBackupUsecase) restoreCustomType(
+	parentCtx context.Context,
 	originalDB *databases.Database,
 	pgBin string,
 	backup *backups_core.Backup,
@@ -102,15 +112,24 @@ func (uc *RestorePostgresqlBackupUsecase) restoreCustomType(
 	// If excluding extensions, we must use file-based restore (requires TOC file generation)
 	// Also use file-based restore for parallel jobs (multiple CPUs)
 	if isExcludeExtensions || pg.CpuCount > 1 {
-		return uc.restoreViaFile(originalDB, pgBin, backup, storage, pg, isExcludeExtensions)
+		return uc.restoreViaFile(
+			parentCtx,
+			originalDB,
+			pgBin,
+			backup,
+			storage,
+			pg,
+			isExcludeExtensions,
+		)
 	}
 
 	// Single CPU without extension exclusion: stream directly via stdin
-	return uc.restoreViaStdin(originalDB, pgBin, backup, storage, pg)
+	return uc.restoreViaStdin(parentCtx, originalDB, pgBin, backup, storage, pg)
 }
 
 // restoreViaStdin streams backup via stdin for single CPU restore
 func (uc *RestorePostgresqlBackupUsecase) restoreViaStdin(
+	parentCtx context.Context,
 	originalDB *databases.Database,
 	pgBin string,
 	backup *backups_core.Backup,
@@ -133,10 +152,10 @@ func (uc *RestorePostgresqlBackupUsecase) restoreViaStdin(
 		"--no-acl",
 	}
 
-	ctx, cancel := context.WithTimeout(context.Background(), 60*time.Minute)
+	ctx, cancel := context.WithTimeout(parentCtx, 60*time.Minute)
 	defer cancel()
 
-	// Monitor for shutdown and cancel context if needed
+	// Monitor for shutdown and parent cancellation
 	go func() {
 		ticker := time.NewTicker(1 * time.Second)
 		defer ticker.Stop()
@@ -145,6 +164,9 @@ func (uc *RestorePostgresqlBackupUsecase) restoreViaStdin(
 			select {
 			case <-ctx.Done():
 				return
+			case <-parentCtx.Done():
+				cancel()
+				return
 			case <-ticker.C:
 				if config.IsShouldShutdown() {
 					cancel()
@@ -296,6 +318,15 @@ func (uc *RestorePostgresqlBackupUsecase) restoreViaStdin(
 	stderrOutput := <-stderrCh
 	copyErr := <-copyErrCh
 
+	// Check for cancellation
+	select {
+	case <-ctx.Done():
+		if errors.Is(ctx.Err(), context.Canceled) {
+			return fmt.Errorf("restore cancelled")
+		}
+	default:
+	}
+
 	// Check for shutdown before finalizing
 	if config.IsShouldShutdown() {
 		return fmt.Errorf("restore cancelled due to shutdown")
@@ -307,6 +338,15 @@ func (uc *RestorePostgresqlBackupUsecase) restoreViaStdin(
 	}
 
 	if waitErr != nil {
+		// Check for cancellation again
+		select {
+		case <-ctx.Done():
+			if errors.Is(ctx.Err(), context.Canceled) {
+				return fmt.Errorf("restore cancelled")
+			}
+		default:
+		}
+
 		if config.IsShouldShutdown() {
 			return fmt.Errorf("restore cancelled due to shutdown")
 		}
@@ -319,6 +359,7 @@ func (uc *RestorePostgresqlBackupUsecase) restoreViaStdin(
 
 // restoreViaFile downloads backup and uses parallel jobs for multi-CPU restore
 func (uc *RestorePostgresqlBackupUsecase) restoreViaFile(
+	parentCtx context.Context,
 	originalDB *databases.Database,
 	pgBin string,
 	backup *backups_core.Backup,
@@ -354,6 +395,7 @@ func (uc *RestorePostgresqlBackupUsecase) restoreViaFile(
 	}
 
 	return uc.restoreFromStorage(
+		parentCtx,
 		originalDB,
 		pgBin,
 		args,
@@ -367,6 +409,7 @@ func (uc *RestorePostgresqlBackupUsecase) restoreViaFile(
 
 // restoreFromStorage restores backup data from storage using pg_restore
 func (uc *RestorePostgresqlBackupUsecase) restoreFromStorage(
+	parentCtx context.Context,
 	database *databases.Database,
 	pgBin string,
 	args []string,
@@ -386,10 +429,10 @@ func (uc *RestorePostgresqlBackupUsecase) restoreFromStorage(
 		isExcludeExtensions,
 	)
 
-	ctx, cancel := context.WithTimeout(context.Background(), 60*time.Minute)
+	ctx, cancel := context.WithTimeout(parentCtx, 60*time.Minute)
 	defer cancel()
 
-	// Monitor for shutdown and cancel context if needed
+	// Monitor for shutdown and parent cancellation
 	go func() {
 		ticker := time.NewTicker(1 * time.Second)
 		defer ticker.Stop()
@@ -398,6 +441,9 @@ func (uc *RestorePostgresqlBackupUsecase) restoreFromStorage(
 			select {
 			case <-ctx.Done():
 				return
+			case <-parentCtx.Done():
+				cancel()
+				return
 			case <-ticker.C:
 				if config.IsShouldShutdown() {
 					cancel()
@@ -624,12 +670,30 @@ func (uc *RestorePostgresqlBackupUsecase) executePgRestore(
 	waitErr := cmd.Wait()
 	stderrOutput := <-stderrCh
 
+	// Check for cancellation
+	select {
+	case <-ctx.Done():
+		if errors.Is(ctx.Err(), context.Canceled) {
+			return fmt.Errorf("restore cancelled")
+		}
+	default:
+	}
+
 	// Check for shutdown before finalizing
 	if config.IsShouldShutdown() {
 		return fmt.Errorf("restore cancelled due to shutdown")
 	}
 
 	if waitErr != nil {
+		// Check for cancellation again
+		select {
+		case <-ctx.Done():
+			if errors.Is(ctx.Err(), context.Canceled) {
+				return fmt.Errorf("restore cancelled")
+			}
+		default:
+		}
+
 		if config.IsShouldShutdown() {
 			return fmt.Errorf("restore cancelled due to shutdown")
 		}

backend/internal/features/restores/usecases/restore_backup_uc.go

@@ -1,12 +1,13 @@
 package usecases
 
 import (
+	"context"
 	"errors"
 
 	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/restores/models"
+	restores_core "databasus-backend/internal/features/restores/core"
 	usecases_mariadb "databasus-backend/internal/features/restores/usecases/mariadb"
 	usecases_mongodb "databasus-backend/internal/features/restores/usecases/mongodb"
 	usecases_mysql "databasus-backend/internal/features/restores/usecases/mysql"
@@ -22,8 +23,9 @@ type RestoreBackupUsecase struct {
 }
 
 func (uc *RestoreBackupUsecase) Execute(
+	ctx context.Context,
 	backupConfig *backups_config.BackupConfig,
-	restore models.Restore,
+	restore restores_core.Restore,
 	originalDB *databases.Database,
 	restoringToDB *databases.Database,
 	backup *backups_core.Backup,
@@ -33,6 +35,7 @@ func (uc *RestoreBackupUsecase) Execute(
 	switch originalDB.Type {
 	case databases.DatabaseTypePostgres:
 		return uc.restorePostgresqlBackupUsecase.Execute(
+			ctx,
 			originalDB,
 			restoringToDB,
 			backupConfig,
@@ -43,6 +46,7 @@ func (uc *RestoreBackupUsecase) Execute(
 		)
 	case databases.DatabaseTypeMysql:
 		return uc.restoreMysqlBackupUsecase.Execute(
+			ctx,
 			originalDB,
 			restoringToDB,
 			backupConfig,
@@ -52,6 +56,7 @@ func (uc *RestoreBackupUsecase) Execute(
 		)
 	case databases.DatabaseTypeMariadb:
 		return uc.restoreMariadbBackupUsecase.Execute(
+			ctx,
 			originalDB,
 			restoringToDB,
 			backupConfig,
@@ -61,6 +66,7 @@ func (uc *RestoreBackupUsecase) Execute(
 		)
 	case databases.DatabaseTypeMongodb:
 		return uc.restoreMongodbBackupUsecase.Execute(
+			ctx,
 			originalDB,
 			restoringToDB,
 			backupConfig,

backend/internal/features/storages/controller.go

@@ -58,7 +58,8 @@ func (c *StorageController) SaveStorage(ctx *gin.Context) {
 	}
 
 	if err := c.storageService.SaveStorage(user, request.WorkspaceID, &request); err != nil {
-		if errors.Is(err, ErrInsufficientPermissionsToManageStorage) {
+		if errors.Is(err, ErrInsufficientPermissionsToManageStorage) ||
+			errors.Is(err, ErrLocalStorageNotAllowedInCloudMode) {
 			ctx.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
 			return
 		}
@@ -325,7 +326,11 @@ func (c *StorageController) TestStorageConnectionDirect(ctx *gin.Context) {
 		return
 	}
 
-	if err := c.storageService.TestStorageConnectionDirect(&request); err != nil {
+	if err := c.storageService.TestStorageConnectionDirect(user, &request); err != nil {
+		if errors.Is(err, ErrLocalStorageNotAllowedInCloudMode) {
+			ctx.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
+			return
+		}
 		ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 		return
 	}

backend/internal/features/storages/di.go

@@ -1,9 +1,13 @@
 package storages
 
 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"
+	"databasus-backend/internal/util/logger"
 )
 
 var storageRepository = &StorageRepository{}
@@ -27,6 +31,21 @@ func GetStorageController() *StorageController {
 	return storageController
 }
 
+var (
+	setupOnce sync.Once
+	isSetup   atomic.Bool
+)
+
 func SetupDependencies() {
-	workspaces_services.GetWorkspaceService().AddWorkspaceDeletionListener(storageService)
+	wasAlreadySetup := isSetup.Load()
+
+	setupOnce.Do(func() {
+		workspaces_services.GetWorkspaceService().AddWorkspaceDeletionListener(storageService)
+
+		isSetup.Store(true)
+	})
+
+	if wasAlreadySetup {
+		logger.GetLogger().Warn("SetupDependencies called multiple times, ignoring subsequent call")
+	}
 }

backend/internal/features/storages/errors.go

@@ -33,4 +33,13 @@ var (
 	ErrStorageHasOtherAttachedDatabasesCannotTransfer = errors.New(
 		"storage has other attached databases and cannot be transferred",
 	)
+	ErrSystemStorageCannotBeTransferred = errors.New(
+		"system storage cannot be transferred between workspaces",
+	)
+	ErrSystemStorageCannotBeMadePrivate = errors.New(
+		"system storage cannot be changed to non-system",
+	)
+	ErrLocalStorageNotAllowedInCloudMode = errors.New(
+		"local storage can only be managed by administrators in cloud mode",
+	)
 )

backend/internal/features/storages/model.go

@@ -24,6 +24,7 @@ type Storage struct {
 	Type          StorageType `json:"type"          gorm:"column:type;not null;type:text"`
 	Name          string      `json:"name"          gorm:"column:name;not null;type:text"`
 	LastSaveError *string     `json:"lastSaveError" gorm:"column:last_save_error;type:text"`
+	IsSystem      bool        `json:"isSystem"      gorm:"column:is_system;not null;default:false"`
 
 	// specific storage
 	LocalStorage       *local_storage.LocalStorage              `json:"localStorage"       gorm:"foreignKey:StorageID"`
@@ -86,6 +87,17 @@ func (s *Storage) HideSensitiveData() {
 	s.getSpecificStorage().HideSensitiveData()
 }
 
+func (s *Storage) HideAllData() {
+	s.LocalStorage = nil
+	s.S3Storage = nil
+	s.GoogleDriveStorage = nil
+	s.NASStorage = nil
+	s.AzureBlobStorage = nil
+	s.FTPStorage = nil
+	s.SFTPStorage = nil
+	s.RcloneStorage = nil
+}
+
 func (s *Storage) EncryptSensitiveData(encryptor encryption.FieldEncryptor) error {
 	return s.getSpecificStorage().EncryptSensitiveData(encryptor)
 }
@@ -93,6 +105,7 @@ func (s *Storage) EncryptSensitiveData(encryptor encryption.FieldEncryptor) erro
 func (s *Storage) Update(incoming *Storage) {
 	s.Name = incoming.Name
 	s.Type = incoming.Type
+	s.IsSystem = incoming.IsSystem
 
 	switch s.Type {
 	case StorageTypeLocal: