docker-image.yml

name: Build & publish event-streams-samples images
on:
  push:
    branches: ['master']
    paths:
      - 'kafka-java-console-sample/**'

env:
  REGISTRY: ghcr.io

jobs:
  build-and-push-image:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        include:
          - directory: kafka-java-console-sample
            image:     kafka-java-console-sample:latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
      
      - name: Log in to registry
        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u $ --password-stdin
      - name: Build image
        run: |
           cd ${{ matrix.directory }}
           docker build . --file Dockerfile --tag ${{ matrix.image }} --label "latest"
      - name: Push image
        run: |
          IMAGE_ID=ghcr.io/${{ github.repository }}/${{ matrix.image }}
          # This changes all uppercase characters to lowercase.
          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')
          echo IMAGE_ID=$IMAGE_ID
          docker tag ${{ matrix.image }} $IMAGE_ID
          docker push $IMAGE_ID