docker-heimdall.yaml

name: Docker image [Heimdall]

on:
  push:
    branches:
      - "main"
      - "heimdall-*"
    tags:
      - "v*"
  pull_request:
    types: [ labeled, opened, reopened, synchronize ]

env:
  PLATFORMS: linux/amd64,linux/arm64
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}-heimdall

jobs:
  build-and-push-image:
    if: contains(github.event.pull_request.labels.*.name, 'docker')
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

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

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
        with:
          platforms: ${{ env.PLATFORMS }}

      - 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 }}

      - name: Build and push Docker image [Heimdall]
        uses: docker/build-push-action@v4
        with:
          context: .
          file: components/heimdall/Dockerfile
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          platforms: ${{ env.PLATFORMS }}
          push: ${{ github.event_name != 'pull_request' }}
          cache-from: type=gha
          cache-to: type=gha,mode=max