Create and publish a Docker image #358
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| name: Create and publish a Docker image | |
| on: | |
| schedule: | |
| - cron: "20 4 * * *" | |
| push: | |
| branches: ["master"] | |
| # Publish semver tags as releases. | |
| tags: ["v*.*.*"] | |
| pull_request: | |
| branches: ["master"] | |
| env: | |
| # Use docker.io for Docker Hub if empty | |
| REGISTRY: ghcr.io | |
| # github.repository as <account>/<repo> | |
| IMAGE_NAME: ${{ github.repository }} | |
| jobs: | |
| build-and-push-image: | |
| runs-on: ubuntu-latest | |
| permissions: | |
| contents: read | |
| packages: write | |
| attestations: write | |
| id-token: write | |
| steps: | |
| - name: Checkout repository | |
| uses: actions/checkout@v4 | |
| with: | |
| submodules: recursive | |
| # Set up BuildKit Docker container builder to be able to build | |
| # multi-platform images and export cache | |
| # https://github.com/docker/setup-buildx-action | |
| - name: Set up Docker Buildx | |
| uses: docker/setup-buildx-action@v3 | |
| # Login against a Docker registry except on PR | |
| # https://github.com/docker/login-action | |
| - name: Log into registry ${{ env.REGISTRY }} | |
| if: github.event_name != 'pull_request' | |
| uses: docker/login-action@v3 | |
| with: | |
| registry: ${{ env.REGISTRY }} | |
| username: ${{ github.actor }} | |
| password: ${{ secrets.GITHUB_TOKEN }} | |
| # Extract metadata (tags, labels) for Docker | |
| # https://github.com/docker/metadata-action | |
| - name: Extract Docker metadata | |
| id: meta | |
| uses: docker/metadata-action@v5 | |
| with: | |
| images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }} | |
| # This step uses the `docker/build-push-action` action to build the image, based on your repository's `Dockerfile`. If the build succeeds, it pushes the image to GitHub Packages. | |
| # It uses the `context` parameter to define the build's context as the set of files located in the specified path. For more information, see [Usage](https://github.com/docker/build-push-action#usage) in the README of the `docker/build-push-action` repository. | |
| # It uses the `tags` and `labels` parameters to tag and label the image with the output from the "meta" step. | |
| - name: Build and push Docker image | |
| id: push | |
| uses: docker/build-push-action@v6 | |
| with: | |
| context: . | |
| push: ${{ github.event_name != 'pull_request' }} | |
| tags: ${{ steps.meta.outputs.tags }} | |
| labels: ${{ steps.meta.outputs.labels }} | |
| cache-from: type=gha | |
| cache-to: type=gha,mode=max | |
| # This step generates an artifact attestation for the image, which is an unforgeable statement about where and how it was built. It increases supply chain security for people who consume the image. For more information, see [Using artifact attestations to establish provenance for builds](/actions/security-guides/using-artifact-attestations-to-establish-provenance-for-builds). | |
| - name: Generate artifact attestation | |
| if: github.event_name != 'pull_request' | |
| uses: actions/attest-build-provenance@v2 | |
| with: | |
| subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}} | |
| subject-digest: ${{ steps.push.outputs.digest }} | |
| push-to-registry: true | |