build-docker.yml

name: Create and publish multi-arch Docker images

on:
  release:
    types: [published]

env:
  REGISTRY: ghcr.io
  IMAGE_BACKEND: ticketz-oss/ticketz-backend
  IMAGE_FRONTEND: ticketz-oss/ticketz-frontend

jobs:
  build-and-push-images:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      attestations: write
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Log in to the Container registry
        uses: docker/login-action@e92390c5fb421da1463c202d546fed0ec5c39f20
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push backend Docker image
        id: backend
        uses: docker/build-push-action@v2
        with:
          context: ./backend
          push: true
          platforms: linux/amd64
          tags: |
            ${{ env.REGISTRY }}/${{ env.IMAGE_BACKEND }}:latest
            ${{ env.REGISTRY }}/${{ env.IMAGE_BACKEND }}:${{ github.sha }}

      - name: Build and push frontend Docker image
        id: frontend
        uses: docker/build-push-action@v2
        with:
          context: ./frontend
          push: true
          platforms: linux/amd64
          tags: |
            ${{ env.REGISTRY }}/${{ env.IMAGE_FRONTEND }}:latest
            ${{ env.REGISTRY }}/${{ env.IMAGE_FRONTEND }}:${{ github.sha }}

      - name: Generate backend artifact attestation
        uses: actions/attest-build-provenance@v1
        with:
          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_BACKEND }}
          subject-digest: ${{ steps.backend.outputs.digest }}
          push-to-registry: true

      - name: Generate frontend artifact attestation
        uses: actions/attest-build-provenance@v1
        with:
          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_FRONTEND }}
          subject-digest: ${{ steps.frontend.outputs.digest }}
          push-to-registry: true