name: Publish Docker image on: push: tags: - 'v*' branches: - main env: REGISTRY: ghcr.io IMAGE_NAME: ${{ github.repository }} permissions: contents: read jobs: ci: uses: ./.github/workflows/ci.yml build: name: Build docker image needs: [ ci ] runs-on: ubuntu-latest permissions: contents: read packages: write steps: - name: Check out the repo uses: actions/checkout@v4 - name: Set up QEMU uses: docker/setup-qemu-action@v3 - name: Set up Docker Buildx uses: docker/setup-buildx-action@v3 - name: Log in to the container registry uses: docker/login-action@v3 with: registry: ${{ env.REGISTRY }} username: ${{ github.actor }} password: ${{ secrets.GITHUB_TOKEN }} - name: Extract metadata for Docker id: meta uses: docker/metadata-action@v5 with: images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }} flavor: latest=auto tags: | type=sha,format=long type=semver,pattern={{version}} type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }} type=raw,value=stable,enable=${{ startsWith(github.ref, 'refs/tags/v') }} - name: Build and push Docker image uses: docker/build-push-action@v6 id: build with: context: . push: true tags: ${{ steps.meta.outputs.tags }} labels: ${{ steps.meta.outputs.labels }} platforms: linux/amd64,linux/arm64,linux/arm/v7 cache-from: type=gha cache-to: type=gha,mode=max provenance: false # https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-container-registry#adding-a-description-to-multi-arch-images outputs: type=image,name=target,annotation-index.org.opencontainers.image.description=A multi-arch Docker image for the Maybe Rails app