build.yml

name: Build
on:
  push:
    branches: [ main ]
    tags:
      - v*
  pull_request:
    types: [ opened, reopened ]
    branches: [ main ]
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v2
      - name: Set up JDK 21
        uses: actions/setup-java@v2
        with:
          java-version: '21'
          distribution: 'temurin'
      - name: Cache Maven packages
        uses: actions/cache@v2
        with:
          path: ~/.m2
          key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
          restore-keys: ${{ runner.os }}-m2
      - name: Generate keystore
        run: ./generate-keystore.sh
      - name: Generate build info
        run: ./generate-build-info.sh
      - name: Build with Maven
        run: mvn --batch-mode --update-snapshots verify
      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v3
        with:
          images: ${{ github.repository_owner }}/${{ github.event.repository.name }}
      - name: Log in to Docker Hub
        if: ${{ github.event.repository.name == 'spring-boot-java-example' && github.event_name != 'pull_request' }}
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
      - name: Build and push Docker image
        uses: docker/build-push-action@v2
        with:
          context: .
          push: ${{ github.event.repository.name == 'spring-boot-java-example' && github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}