diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml new file mode 100644 index 0000000..d920677 --- /dev/null +++ b/.github/workflows/docker-publish.yml @@ -0,0 +1,96 @@ +name: Docker + +# This workflow uses actions that are not certified by GitHub. +# They are provided by a third-party and are governed by +# separate terms of service, privacy policy, and support +# documentation. + +on: + push: + branches: [ "main" ] + # Publish semver tags as releases. + tags: [ 'v*.*.*' ] + pull_request: + branches: [ "main" ] + +env: + # Use docker.io for Docker Hub if empty + REGISTRY: ghcr.io + # github.repository as / + IMAGE_NAME: ${{ github.repository }} + + +jobs: + build: + + runs-on: ubuntu-latest + permissions: + contents: read + packages: write + # This is used to complete the identity challenge + # with sigstore/fulcio when running outside of PRs. + id-token: write + + steps: + - name: Checkout repository + uses: actions/checkout@v3 + + # Install the cosign tool except on PR + # https://github.com/sigstore/cosign-installer + - name: Install cosign + if: github.event_name != 'pull_request' + uses: sigstore/cosign-installer@v3.3.4 + with: + cosign-release: 'v2.1.1' + + # 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@v3.0.0 + + # 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@v3.0.0 + 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@v5.0.0 + with: + images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }} + + # Build and push Docker image with Buildx (don't push on PR) + # https://github.com/docker/build-push-action + - name: Build and push Docker image + id: build-and-push + uses: docker/build-push-action@v5.0.0 + 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 + + # Sign the resulting Docker image digest except on PRs. + # This will only write to the public Rekor transparency log when the Docker + # repository is public to avoid leaking data. If you would like to publish + # transparency data even for private images, pass --force to cosign below. + # https://github.com/sigstore/cosign + - name: Sign the published Docker image + if: ${{ github.event_name != 'pull_request' }} + env: + # https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-an-intermediate-environment-variable + TAGS: ${{ steps.meta.outputs.tags }} + DIGEST: ${{ steps.build-and-push.outputs.digest }} + # This step uses the identity token to provision an ephemeral certificate + # against the sigstore community Fulcio instance. + run: echo "${TAGS}" | xargs -I {} cosign sign --yes {}@${DIGEST}