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" ] pull_request: branches: [ "main" ] env: # Use docker.io for Docker Hub if empty REGISTRY: git.jeffa.io # github.repository as / IMAGE_NAME: ${{ gitea.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@v4 # 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@59acb6260d9c0ba8f4a2f9d9b48431a222b68e20 #v3.5.0 with: cosign-release: 'v2.2.4' # 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@f95db51fddba0c2d1ec667646a06c2ce06100226 # 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@343f7c4344506bcbf9b4de18042ae17996df046d # v3.0.0 with: registry: ${{ env.REGISTRY }} username: ${{ github.actor }} password: ${{ secrets.TOKEN }} # Extract metadata (tags, labels) for Docker # https://github.com/docker/metadata-action - name: Extract Docker metadata id: meta uses: docker/metadata-action@96383f45573cb7f253c731d3b3ab81c87ef81934 # 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@0565240e2d4ab88bba5387d719585280857ece09 # 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}