Document forked repo image publishing #10
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| 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*.*.*' ] | |
| release: | |
| types: [published] | |
| pull_request: | |
| branches: [ "main" ] | |
| env: | |
| DOCKERHUB_USERNAME: ${{ vars.DOCKERHUB_USERNAME }} | |
| IMAGE_NAME: ${{ vars.IMAGE_NAME }} | |
| REGISTRY: ${{ vars.REGISTRY }} | |
| 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 | |
| # TODO enable once the repo goes public | |
| # - name: Install cosign | |
| # if: github.event_name != 'pull_request' | |
| # uses: sigstore/cosign-installer@f3c664df7af409cb4873aa5068053ba9d61a57b6 #v2.6.0 | |
| # with: | |
| # cosign-release: 'v1.11.0' | |
| # Workaround: https://github.com/docker/build-push-action/issues/461 | |
| - name: Setup Docker buildx | |
| uses: docker/setup-buildx-action@edfb0fe6204400c56fbfd3feba3fe9ad1adfa345 | |
| # Login against a Docker registry except on PR | |
| # https://github.com/docker/login-action | |
| - name: Log into GH registry (ghcr.io) | |
| if: github.event_name != 'pull_request' | |
| uses: docker/login-action@3d58c274f17dffee475a5520cbe67f0a882c4dbb | |
| with: | |
| registry: ghcr.io | |
| username: ${{ github.actor }} | |
| password: ${{ secrets.GITHUB_TOKEN }} | |
| - name: Log into Docker Hub registry | |
| if: github.event_name != 'pull_request' && env.DOCKERHUB_USERNAME != '' | |
| uses: docker/login-action@3d58c274f17dffee475a5520cbe67f0a882c4dbb | |
| with: | |
| username: ${{ env.DOCKERHUB_USERNAME }} | |
| password: ${{ secrets.DOCKERHUB_TOKEN }} | |
| # Extract metadata (tags, labels) for Docker | |
| # https://github.com/docker/metadata-action | |
| # 1st image name is for GH package repo | |
| # 2nd image name is for DockerHub image | |
| - name: Extract Docker metadata | |
| id: meta | |
| uses: docker/metadata-action@dbef88086f6cef02e264edb7dbf63250c17cef6c | |
| 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@9f6f8c940b91232557f8699b21341a08624a8dce | |
| 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 | |
| # TODO enable once the repo goes public | |
| # - name: Sign the published Docker image | |
| # if: ${{ github.event_name != 'pull_request' }} | |
| # env: | |
| # COSIGN_EXPERIMENTAL: "true" | |
| # This step uses the identity token to provision an ephemeral certificate | |
| # against the sigstore community Fulcio instance. | |
| # run: echo "${{ steps.meta.outputs.tags }}" | xargs -I {} cosign sign {}@${{ steps.build-and-push.outputs.digest }} | |