deploy_backend.yaml

name: Publish backend to GHCR

on:
  workflow_dispatch:
  release:
    types: [published]
  push:
    paths: ["backend/**"]


env:
  REGISTRY: ghcr.io
  IMAGE_NAME: kronos-et-al/mensa-app
jobs:
  build-and-push-backend:
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: ./backend
    # Sets the permissions granted to the `GITHUB_TOKEN` for the actions in this job.
    permissions:
      contents: read
      packages: write
    
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
      - name: Log in to the Container registry
        uses: docker/login-action@v2
        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
        with: 
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
      - name: Build and push Docker image
        uses: docker/build-push-action@v4
        with:
          context: "{{defaultContext}}:backend"
          file: Dockerfile
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}