version 1

.github/workflows/build-push.yml

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+name: Build & Push Electron-Builder Windows Images
+
+on:
+  push:
+    branches: [ "main" ]
+    tags:
+      - "v*"
+  workflow_dispatch: {}
+
+env:
+  IMAGE_NAME: mrunknownde/electron-builder-windows
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - dockerfile: Dockerfile.node20
+            short_tag: node20
+            latest: "true"
+          - dockerfile: Dockerfile.node18
+            short_tag: node18
+            latest: "false"
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.IMAGE_NAME }}
+          tags: |
+            type=raw,value=${{ matrix.short_tag }}
+            # Optional: also tag by git sha for traceability
+            type=sha,format=long,prefix=${{ matrix.short_tag }}-
+          labels: |
+            org.opencontainers.image.title=electron-builder-windows
+            org.opencontainers.image.source=${{ github.repositoryUrl }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./${{ matrix.dockerfile }}
+          platforms: linux/amd64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      # Optionally mark Node20 as "latest"
+      - name: Also push :latest (only for Node 20)
+        if: ${{ matrix.latest == 'true' }}
+        run: |
+          docker buildx imagetools create \
+            --tag ${{ env.IMAGE_NAME }}:latest \
+            ${{ env.IMAGE_NAME }}:${{ matrix.short_tag }}

Dockerfile.node18

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+# Build image for Electron Windows builds (Node 18)
+FROM debian:bookworm-slim
+
+LABEL org.opencontainers.image.title="electron-builder-windows (Node 18)"
+LABEL org.opencontainers.image.source="https://github.com/MrUnknownDE/docker-nodejs-win"
+LABEL org.opencontainers.image.description="Linux container for building Windows Electron apps using electron-builder (Node 18)"
+LABEL maintainer="<you@example.com>"
+
+ENV DEBIAN_FRONTEND=noninteractive \
+    WINEDEBUG=-all \
+    WINEDLLOVERRIDES="winemenubuilder.exe=d" \
+    NPM_CONFIG_LOGLEVEL=warn
+
+# 1) Basis-Tools + NodeSource prerequisites
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ca-certificates curl gnupg2 dirmngr \
+ && rm -rf /var/lib/apt/lists/*
+
+# 2) Node.js 18 via NodeSource
+RUN curl -fsSL https://deb.nodesource.com/setup_18.x | bash - \
+ && apt-get update && apt-get install -y --no-install-recommends \
+    nodejs \
+ && corepack enable \
+ && rm -rf /var/lib/apt/lists/*
+
+# 3) 32-bit Arch für wine32 + alle Build-Dependencies
+RUN dpkg --add-architecture i386 \
+ && apt-get update && apt-get install -y --no-install-recommends \
+    build-essential python3 git file xz-utils zip p7zip-full fakeroot \
+    icnsutils graphicsmagick rpm \
+    g++-mingw-w64 nsis osslsigncode \
+    wine32 wine64 mono-complete \
+    xvfb fontconfig \
+ && rm -rf /var/lib/apt/lists/*
+
+RUN node -v && npm -v && npx --yes electron-builder --version || true \
+ && wine --version && mono --version && makensis -VERSION
+
+WORKDIR /workspace
+CMD [ "bash" ]

Dockerfile.node20

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+FROM debian:bookworm-slim
+
+LABEL org.opencontainers.image.title="electron-builder-windows (Node 20)"
+LABEL org.opencontainers.image.source="https://github.com/MrUnknownDE/docker-nodejs-win"
+LABEL org.opencontainers.image.description="Linux container for building Windows Electron apps using electron-builder (Node 20)"
+LABEL maintainer="<you@example.com>"
+
+ENV DEBIAN_FRONTEND=noninteractive \
+    WINEDEBUG=-all \
+    WINEDLLOVERRIDES="winemenubuilder.exe=d" \
+    # reduce noisy npm logs and enable corepack
+    NPM_CONFIG_LOGLEVEL=warn
+
+# 1) Basis-Tools + NodeSource prerequisites
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ca-certificates curl gnupg2 dirmngr \
+ && rm -rf /var/lib/apt/lists/*
+
+# 2) Node.js 20 via NodeSource
+RUN curl -fsSL https://deb.nodesource.com/setup_20.x | bash - \
+ && apt-get update && apt-get install -y --no-install-recommends \
+    nodejs \
+ && corepack enable \
+ && rm -rf /var/lib/apt/lists/*
+
+# 3) 32-bit Arch für wine32 + alle Build-Dependencies
+RUN dpkg --add-architecture i386 \
+ && apt-get update && apt-get install -y --no-install-recommends \
+    # Build basics
+    build-essential python3 git file xz-utils zip p7zip-full fakeroot \
+    # electron-builder extras
+    icnsutils graphicsmagick rpm \
+    # Windows / signing toolchain
+    g++-mingw-w64 nsis osslsigncode \
+    # Wine & Mono
+    wine32 wine64 mono-complete \
+    # headless
+    xvfb fontconfig \
+ && rm -rf /var/lib/apt/lists/*
+
+# Optional: häufig genutzte global Tools (pnpm/yarn via corepack)
+# (corepack ist bereits enabled; Projekte können `packageManager` in package.json definieren)
+
+# Sanity check: Versionen
+RUN node -v && npm -v && npx --yes electron-builder --version || true \
+ && wine --version && mono --version && makensis -VERSION
+
+# Default Arbeitsverzeichnis
+WORKDIR /workspace
+
+# Hinweis: zum Bauen im CI:
+# - bind-mount/checkout dein Projekt nach /workspace
+# - npm ci && npm run dist -- --win
+CMD [ "bash" ]