build_image.yml

name: Build and publish container images

on:
  release:
    types: [created]
  push:
    branches:
      - main

jobs:
  build:
    name: Build and publish container images
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        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: Log in to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Login to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          build-args: |
            VERSION=${{ github.event.release.tag_name }}
            SHA=${{ github.sha }}
          flavor: |
            latest=false
          images: |
            deutschemodelunitednations/delegator
            ghcr.io/${{ github.repository_owner }}/${{ github.repository }}
          tags: |
            type=raw,value=${{ github.sha }}

            type=semver,pattern={{version}},value=${{ github.event.release.tag_name }},enable=${{ github.event_name == 'release' }}

            type=raw,value=latest,enable=${{ github.event_name == 'release' && !github.event.release.prerelease }}
            type=semver,pattern={{major}},value=${{ github.event.release.tag_name }},enable=${{ github.event_name == 'release' && !github.event.release.prerelease }}
            type=semver,pattern={{major}}.{{minor}},value=${{ github.event.release.tag_name }},enable=${{ github.event_name == 'release' && !github.event.release.prerelease }}

            type=raw,value=prerelease,enable=${{ github.event_name == 'release' && github.event.release.prerelease }}
            type=raw,value=nightly,enable=${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          # platforms: linux/amd64,linux/arm64
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}