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: [ 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 / 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 - name: Setup QEMU uses: docker/setup-qemu-action@v2 # 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@v3.1.1 with: cosign-release: 'v2.1.1' # Workaround: https://github.com/docker/build-push-action/issues/461 - name: Setup Docker buildx uses: docker/setup-buildx-action@v2 # 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@v2 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@v3 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: Set some variables for the image run: | echo "IMAGE_VERSION=${GITHUB_REF_NAME#v}" >> $GITHUB_ENV echo "IMAGE_NAME=${GITHUB_REPOSITORY,,}" >> $GITHUB_ENV - name: Build and push Docker image id: build-and-push uses: docker/build-push-action@v2 with: context: . platforms: linux/amd64,linux/arm64 push: ${{ github.event_name != 'pull_request' }} tags: | ghcr.io/${{ env.IMAGE_NAME }}:latest ghcr.io/${{ env.IMAGE_NAME }}:${{ env.IMAGE_VERSION }} 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: DIGEST: ${{ steps.build-and-push.outputs.digest }} TAGS: ${{ steps.meta.outputs.tags }} run: cosign sign --yes "${TAGS}@${DIGEST}"