build.yml

name: Build & Push Docker Images

on:
  push:
    branches:
      - master
  pull_request:
    branches:
      - master
  workflow_dispatch:

env:
  REGISTRY: ghcr.io
  IMAGE_BASENAME: UniversalOJ/uoj

jobs:
  build:
    name: Build Image
    runs-on: ubuntu-latest

    permissions:
      contents: read
      packages: write

    strategy:
      matrix:
        include:
          - image_name: db
            context: db
            dockerfile: db/Dockerfile
          - image_name: judger
            context: judger
            dockerfile: judger/Dockerfile
          - image_name: web
            context: .
            dockerfile: web/Dockerfile
      fail-fast: false

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

      - name: Log in to the Container registry
        uses: docker/login-action@v2.1.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v4.3.0
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_BASENAME }}-${{ matrix.image_name }}
          tags: |
            latest
            type=ref,event=branch
            type=ref,event=pr
            type=sha,prefix=

      - name: Build and push Docker image
        uses: docker/build-push-action@v3.3.0
        with:
          context: ${{ matrix.context }}
          file: ${{ matrix.dockerfile }}
          push: ${{ github.event_name == 'push' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}