Build docker images #236
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| name: Build docker images | |
| on: | |
| push: | |
| branches: [ 'master' ] | |
| schedule: | |
| # Cron execution is for weekly dependencies update (for security update) | |
| # ┌───────────── minute (0 - 59) | |
| # │ ┌───────────── hour (0 - 23) | |
| # │ │ ┌───────────── day of the month (1 - 31) | |
| # │ │ │ ┌───────────── month (1 - 12 or JAN-DEC) | |
| # │ │ │ │ ┌───────────── day of the week (0 - 6 or SUN-SAT) | |
| - cron: "0 0 * * 0" | |
| jobs: | |
| build: | |
| name: Build | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Checkout code from Git repository | |
| uses: actions/checkout@v2 | |
| - name: Set up QEMU | |
| uses: docker/setup-qemu-action@v1 | |
| - name: Set up Docker Buildx | |
| id: buildx | |
| uses: docker/setup-buildx-action@v1 | |
| # Only if you want the image to be push to docker.io instead of the GitHub Package repository | |
| # - name: Docker login to DockerHub | |
| # uses: docker/login-action@v1 | |
| # with: | |
| # username: ${{ secrets.DOCKER_USERNAME }} | |
| # password: ${{ secrets.DOCKER_PASSWORD }} | |
| # Comment this if you prefer to use the docker.io image repository | This method can be better because it didn't need any password (use the credentials of the people who commit) | |
| - name: Docker login to GitHub | |
| uses: docker/login-action@v1 | |
| with: | |
| registry: ghcr.io | |
| username: ${{ github.actor }} | |
| password: ${{ secrets.GITHUB_TOKEN }} | |
| - name: Prepare available platforms build | |
| env: # Here you need to test on what platform your docker image can be build. Important one is linux/arm/v7, linux/arm64 and linux/amd64 | |
| requested_platforms: "linux/amd64,linux/arm64,linux/arm/v7" # jrei/systemd-debian:10 support only i386, amd64, arm and arm64 | |
| image: "ghcr.io/${{ github.repository }}:latest" | |
| run: | | |
| # If you use the `requested_platforms` env var, then parse it. | |
| if [ -n "${requested_platforms}" ]; then | |
| # Transform env var into bash array to calculate arrays intersect. That allow us to know the plateform that can work with our image who can be build on current github docker buildx. | |
| IFS=',' read -r -a requested_platforms <<< "${requested_platforms}" | |
| IFS=',' read -r -a available_platforms <<< "${{ steps.buildx.outputs.platforms }}" | |
| # Only got the intersect of two arrays | |
| available_platforms=$(comm -12 <(printf '%s\n' "${requested_platforms[@]}" | LC_ALL=C sort) <(printf '%s\n' "${available_platforms[@]}" | LC_ALL=C sort)) | |
| # Just format the output for the docker commands | |
| requested_platforms="${requested_platforms//' | |
| '/,}" | |
| available_platforms="${available_platforms//' | |
| '/,}" | |
| else | |
| available_platforms="${{ steps.buildx.outputs.platforms }}" | |
| fi | |
| echo "available_platforms=$available_platforms" | |
| # Save Available platforms | |
| echo "available_platforms=${available_platforms}" >> $GITHUB_ENV | |
| echo "docker_image=${image,,}" >> $GITHUB_ENV | |
| # Use cache image for quicker build time. | |
| - name: Cache Docker layers | |
| uses: actions/cache@v2 | |
| with: | |
| path: /tmp/.buildx-cache | |
| key: ${{ runner.os }}-buildx-${{ github.sha }} | |
| restore-keys: | | |
| ${{ runner.os }}-buildx- | |
| # Use official buildx GitHub Action | |
| - name: Docker build & push | |
| uses: docker/build-push-action@v2 | |
| with: | |
| context: . | |
| push: true | |
| cache-from: type=local,src=/tmp/.buildx-cache | |
| cache-to: type=local,dest=/tmp/.buildx-cache-new | |
| platforms: ${{ env.available_platforms }} | |
| tags: ${{ env.docker_image }} | |
| # Save new cache | |
| - name: Move cache | |
| run: | | |
| rm -rf /tmp/.buildx-cache | |
| mv /tmp/.buildx-cache-new /tmp/.buildx-cache |