Add a GitHub Actions workflow to build the Docker container image #6
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| name: Build Docker container image | |
| on: | |
| push: | |
| branches: | |
| - 'main' | |
| - 'beta' | |
| - 'stable' | |
| tags: | |
| - 'v*' | |
| pull_request: | |
| merge_group: | |
| workflow_dispatch: | |
| inputs: | |
| git-ref: | |
| description: 'Git ref (optional)' | |
| required: false | |
| env: | |
| REGISTRY_IMAGE: ghcr.io/planktoscope/streamlit-classification-app | |
| jobs: | |
| build: | |
| runs-on: ubuntu-latest | |
| strategy: | |
| fail-fast: false | |
| matrix: | |
| platform: | |
| - linux/amd64 | |
| - linux/arm64 | |
| permissions: | |
| contents: read | |
| packages: write | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - name: Prepare environment variables | |
| run: | | |
| platform=${{ matrix.platform }} | |
| echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV | |
| # Build and publish Docker container image | |
| - name: Get Docker metadata | |
| id: meta | |
| uses: docker/metadata-action@v5 | |
| with: | |
| images: ${{ env.REGISTRY_IMAGE }} | |
| tags: | | |
| type=sha | |
| - name: Set up QEMU | |
| uses: docker/setup-qemu-action@v3 | |
| - name: Set up Docker Buildx | |
| uses: docker/setup-buildx-action@v3 | |
| - name: Log in to GitHub Container Registry | |
| uses: docker/login-action@v3 | |
| with: | |
| registry: ghcr.io | |
| username: ${{ github.repository_owner }} | |
| password: ${{ secrets.GITHUB_TOKEN }} | |
| - name: Build and push by digest | |
| id: build | |
| uses: docker/build-push-action@v5 | |
| with: | |
| context: ./ | |
| pull: true | |
| push: ${{ (github.event_name == 'pull_request' && !github.event.pull_request.head.repo.fork) || github.event_name == 'push' || github.event_name == 'push tag' }} | |
| platforms: ${{ matrix.platform }} | |
| tags: ${{ env.REGISTRY_IMAGE }} | |
| labels: ${{ steps.meta.outputs.labels }} | |
| cache-from: type=gha,scope=build-${{ matrix.platform }} | |
| cache-to: type=gha,mode=max,scope=build-${{ matrix.platform }} | |
| outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=${{ !github.event.pull_request.head.repo.fork }} | |
| - name: Export digest | |
| run: | | |
| mkdir -p /tmp/digests | |
| digest="${{ steps.build.outputs.digest }}" | |
| touch "/tmp/digests/${digest#sha256:}" | |
| - name: Upload digest | |
| uses: actions/upload-artifact@v4 | |
| with: | |
| name: digests-${{ env.PLATFORM_PAIR }} | |
| path: /tmp/digests/* | |
| if-no-files-found: error | |
| retention-days: 1 | |
| merge: | |
| runs-on: ubuntu-latest | |
| needs: | |
| - build | |
| permissions: | |
| contents: read | |
| packages: write | |
| steps: | |
| - name: Download digests | |
| uses: actions/download-artifact@v4 | |
| with: | |
| path: /tmp/digests | |
| pattern: digests-* | |
| merge-multiple: true | |
| # Build and publish Docker container image | |
| - name: Get Docker metadata | |
| id: meta | |
| uses: docker/metadata-action@v5 | |
| with: | |
| images: ${{ env.REGISTRY_IMAGE }} | |
| tags: | | |
| type=match,pattern=v(.*),group=1 | |
| type=edge,branch=main | |
| type=ref,event=branch,enable=${{ github.ref != format('refs/heads/{0}', 'main') && github.ref != format('refs/heads/{0}', 'main') }} | |
| type=ref,event=pr | |
| type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'stable') }} | |
| type=sha | |
| - name: Set up Docker Buildx | |
| uses: docker/setup-buildx-action@v3 | |
| - name: Log in to GitHub Container Registry | |
| uses: docker/login-action@v3 | |
| if: ${{ (github.event_name == 'pull_request' && !github.event.pull_request.head.repo.fork) || github.event_name == 'push' || github.event_name == 'push tag' }} | |
| with: | |
| registry: ghcr.io | |
| username: ${{ github.repository_owner }} | |
| password: ${{ secrets.GITHUB_TOKEN }} | |
| - name: Create manifest list and push | |
| working-directory: /tmp/digests | |
| if: ${{ (github.event_name == 'pull_request' && !github.event.pull_request.head.repo.fork) || github.event_name == 'push' || github.event_name == 'push tag' }} | |
| run: | | |
| docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \ | |
| $(printf '${{ env.REGISTRY_IMAGE }}@sha256:%s ' *) | |
| - name: Inspect image | |
| if: ${{ (github.event_name == 'pull_request' && !github.event.pull_request.head.repo.fork) || github.event_name == 'push' || github.event_name == 'push tag' }} | |
| run: | | |
| docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }} |