Build docker images #6
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| name: "Build docker images" | |
| on: | |
| push: | |
| branches: | |
| - "master" | |
| schedule: | |
| - cron: "0 5 * * 4" | |
| permissions: | |
| contents: read | |
| packages: write | |
| # This is used to complete the identity challenge | |
| # with sigstore/fulcio when running outside of PRs. | |
| id-token: write | |
| jobs: | |
| build: | |
| runs-on: "ubuntu-latest" | |
| strategy: | |
| matrix: | |
| context: | |
| - traefik | |
| - nextcloud-web | |
| - nextcloud-fpm | |
| steps: | |
| - uses: "actions/checkout@v4" | |
| - name: "Install cosign" | |
| uses: "sigstore/cosign-installer@v3.7.0" | |
| - uses: "docker/setup-buildx-action@v3.7.1" | |
| # Login against a Docker registry except on PR | |
| # https://github.com/docker/login-action | |
| - uses: "docker/login-action@v3.3.0" | |
| with: | |
| registry: "ghcr.io" | |
| username: ${{ github.actor }} | |
| password: ${{ secrets.GITHUB_TOKEN }} | |
| # Extract metadata (tags, labels) for Docker | |
| # https://github.com/docker/metadata-action | |
| - name: Extract Docker metadata | |
| id: "meta" | |
| uses: "docker/metadata-action@v5.5.1" | |
| with: | |
| images: "ghcr.io/${{ github.repository }}/${{ matrix.context }}" | |
| tags: | | |
| # set latest tag for master branch | |
| type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'master') }} | |
| # 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@v6.9.0" | |
| with: | |
| context: "docker/${{ matrix.context }}" | |
| push: true | |
| 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 | |
| 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} |