docker-build-backend.yml

name: Build backend image

on:
  push:
    branches: [main]

env:
  REGISTRY: ghcr.io
  DOCKERFILE: ./docker/api/Dockerfile
  IMAGE_NAME: ${{ github.repository }}
  IMAGE_KIND: backend

jobs:
  backend-build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5
        with:
          flavor: |
            latest=auto
            suffix=-${{ env.IMAGE_KIND }},onlatest=false
          tags: |
            type=sha
            type=edge,branch=main
            type=raw,value={{date 'YYYY-MM-DD-HH-mm'}},enable={{is_default_branch}}
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Login to DockerHub
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Cache Docker layers
        uses: actions/cache@v4
        with:
          path: /tmp/.buildx-cache
          key: ${{ runner.os }}-buildx-${{ github.sha }}
          restore-keys: ${{ runner.os }}-buildx

      - name: Build and push
        id: docker_build
        uses: docker/build-push-action@v5
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          file: ${{ env.DOCKERFILE }}
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          cache-from: type=local,src=/tmp/.buildx-cache
          cache-to: type=local,dest=/tmp/.buildx-cache-new

      # Temp fix
      # https://github.com/docker/build-push-action/issues/252
      # https://github.com/moby/buildkit/issues/1896
      - name: Move cache
        run: |
          rm -rf /tmp/.buildx-cache
          mv /tmp/.buildx-cache-new /tmp/.buildx-cache

      - name: Image digest
        run: echo ${{ steps.docker_build.outputs.digest }}