common.yml

name: Build Docker image

on:
  workflow_call:
    inputs:
      MD_IMAGE_FLAVOUR:
        required: true
        type: string

env:
  REGISTRY: "ghcr.io"
  IMAGE_NAME: "${{ github.repository }}"
  DOCKER_LAYER_CACHE: "/tmp/.buildx-cache"

jobs:
  build-images:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    strategy:
      matrix:
        jdk_version: [ "22", "23" ]

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      - name: Cache Docker layers
        uses: actions/cache@v4
        with:
          path: ${{ env.DOCKER_LAYER_CACHE }}
          key: ${{ runner.os }}-buildx-jdk${{ matrix.jdk_version }}-${{ inputs.MD_IMAGE_FLAVOUR }}-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-buildx-jdk${{ matrix.jdk_version }}-${{ inputs.MD_IMAGE_FLAVOUR }}-
      - name: Log in to the Container registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=sha,event=push,enable=true,prefix=branch-{{ branch }}-${{ matrix.jdk_version }}-${{ inputs.MD_IMAGE_FLAVOUR }}-git-,format=short
            type=raw,event=push,enable={{ is_default_branch }},value={{ branch }}-${{ matrix.jdk_version }}-${{ inputs.MD_IMAGE_FLAVOUR }}
            type=raw,event=push,enable={{ is_default_branch }},value=${{ matrix.jdk_version }}-${{ inputs.MD_IMAGE_FLAVOUR }}
      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          platforms: linux/amd64
          provenance: false
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          target: ${{ inputs.MD_IMAGE_FLAVOUR }}
          build-args: |
            JDK_VERSION=${{ matrix.jdk_version }}
          cache-from: type=local,src=${{ env.DOCKER_LAYER_CACHE }}
          cache-to: type=local,dest=${{ env.DOCKER_LAYER_CACHE }}