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Merge pull request #58 merge from branch 26 - 3 #5
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| # This GitHub Action workflow builds the Spring Boot application into a Docker image | |
| # and publishes it to Docker Hub. | |
| # | |
| # It triggers on two events: | |
| # 1. A push to the 'master' branch, which tags the image as 'latest'. | |
| # 2. Publishing a new release, which tags the image with the release version (e.g., 'v1.0.0'). | |
| name: Publish Docker Image to Docker Hub | |
| on: | |
| push: | |
| branches: [ "master" ] | |
| release: | |
| types: [ published ] | |
| jobs: | |
| build-and-publish: | |
| runs-on: ubuntu-latest | |
| permissions: | |
| contents: read | |
| packages: write | |
| steps: | |
| - name: Checkout repository | |
| uses: actions/checkout@v4 | |
| - name: Set up JDK 25 | |
| uses: actions/setup-java@v4 | |
| with: | |
| java-version: '25' | |
| distribution: 'liberica' # Liberica provides builds for JDK 25 | |
| - name: Extract metadata for Docker | |
| id: meta | |
| uses: docker/metadata-action@v5 | |
| with: | |
| # The image name is defined in pom.xml. This action only generates tags. | |
| images: ${{ secrets.DOCKERHUB_USERNAME }}/${{ github.event.repository.name }} | |
| tags: | | |
| # Generate tags based on the event | |
| type=ref,event=branch | |
| type=ref,event=pr | |
| type=semver,pattern={{version}} | |
| type=semver,pattern={{major}}.{{minor}} | |
| # Set 'latest' tag when pushing to the master branch | |
| type=raw,value=latest,enable=${{ github.ref == 'refs/heads/master' }} | |
| - name: Log in to Docker Hub | |
| uses: docker/login-action@v3 | |
| with: | |
| username: ${{ secrets.DOCKERHUB_USERNAME }} | |
| password: ${{ secrets.DOCKERHUB_TOKEN }} | |
| - name: Build and push Docker image | |
| run: | | |
| # The 'spring-boot:build-image' goal uses Paketo Buildpacks to create a Docker image. | |
| # The 'pom.xml' is already configured with the base image name. | |
| # We pass the generated tags as a comma-separated list to the 'tags' property. | |
| ./mvnw spring-boot:build-image \ | |
| -DskipTests \ | |
| -Dspring-boot.build-image.publish=true \ | |
| -Dspring-boot.build-image.tags="${{ steps.meta.outputs.tags }}" |