CI: Docker Multi-Platform Image (#4) #7
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| # This workflow is triggered on pushes to the main branch. | |
| # It builds the agent and creates a multi-arch image for it. | |
| # The image is then pushed to Docker Hub. | |
| # | |
| # The workflow consists of three jobs: | |
| # 1. build-agent: Builds the agent and uploads the resulting JAR as an artifact. | |
| # 2. build-image: Builds a Docker image for multiple platforms with the matrix strategy. | |
| # 3. merge: Merges the images for the different platforms into a manifest list and pushes it to Docker Hub. | |
| # To make the build faster, we use a matrix strategy to build the image for multiple platforms in parallel. | |
| # The build of the first job is copied over to the image build jobs, so that the application build is only done once. | |
| # QUEMU is used to emulate the different platforms on the GitHub runner. | |
| # For more information about how to build multi-arch images and advanced settings with Docker Buildx in GitHub actions, see: | |
| # https://docs.docker.com/build/ci/github-actions/multi-platform/ | |
| name: Main Branch Continuous Release | |
| on: | |
| push: | |
| branches: | |
| - main | |
| env: | |
| REGISTRY_IMAGE: inspectit/inspectit-gepard-configserver | |
| jobs: | |
| build-configserver: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - name: Set up JDK 21 | |
| uses: actions/setup-java@v4 | |
| with: | |
| java-version: '21' | |
| distribution: 'temurin' | |
| - name: Setup Gradle | |
| uses: gradle/actions/setup-gradle@417ae3ccd767c252f5661f1ace9f835f9654f2b5 # v3.1.0 | |
| with: | |
| build-scan-publish: true | |
| build-scan-terms-of-service-url: "https://gradle.com/terms-of-service" | |
| build-scan-terms-of-service-agree: "yes" | |
| - name: Build with Gradle | |
| run: ./gradlew build | |
| - name: Upload artifact | |
| uses: actions/upload-artifact@v3 | |
| with: | |
| name: configserver-artifact | |
| path: backend/build/libs/backend-0.0.1-SNAPSHOT.jar | |
| build-image: | |
| runs-on: ubuntu-latest | |
| needs: build-configserver | |
| strategy: | |
| fail-fast: false | |
| matrix: | |
| platform: | |
| - linux/amd64 | |
| - linux/arm64 | |
| steps: | |
| - name: Checkout | |
| uses: actions/checkout@v4 | |
| - name: Prepare | |
| run: | | |
| platform=${{ matrix.platform }} | |
| echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV | |
| - name: Docker meta | |
| id: meta | |
| uses: docker/metadata-action@v5 | |
| with: | |
| images: ${{ env.REGISTRY_IMAGE }} | |
| - name: Download artifact | |
| uses: actions/download-artifact@v3 | |
| with: | |
| name: configserver-artifact | |
| path: ./ # Download artifact to the root of the Docker build context | |
| - name: Set up QEMU | |
| uses: docker/setup-qemu-action@v3 | |
| - name: Set up Docker Buildx | |
| uses: docker/setup-buildx-action@v3 | |
| - name: Login to Docker Hub | |
| uses: docker/login-action@v3 | |
| with: | |
| username: ${{ vars.DOCKERHUB_USERNAME }} | |
| password: ${{ secrets.DOCKERHUB_TOKEN }} | |
| - name: Build and push by digest | |
| id: build | |
| uses: docker/build-push-action@v6 | |
| with: | |
| context: . | |
| file: "./backend/Dockerfile-CR" | |
| platforms: ${{ matrix.platform }} | |
| labels: ${{ steps.meta.outputs.labels }} | |
| outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true | |
| - 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-image | |
| steps: | |
| - name: Download digests | |
| uses: actions/download-artifact@v4 | |
| with: | |
| path: /tmp/digests | |
| pattern: digests-* | |
| merge-multiple: true | |
| - name: Set up Docker Buildx | |
| uses: docker/setup-buildx-action@v3 | |
| - name: Docker meta | |
| id: meta | |
| uses: docker/metadata-action@v5 | |
| with: | |
| images: ${{ env.REGISTRY_IMAGE }} | |
| - name: Login to Docker Hub | |
| uses: docker/login-action@v3 | |
| with: | |
| username: ${{ vars.DOCKERHUB_USERNAME }} | |
| password: ${{ secrets.DOCKERHUB_TOKEN }} | |
| - name: Create manifest list and push | |
| working-directory: /tmp/digests | |
| run: | | |
| docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \ | |
| $(printf '${{ env.REGISTRY_IMAGE }}@sha256:%s ' *) | |
| - name: Inspect image | |
| run: | | |
| docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }} |