name: release

on:
  push:
    tags:
      - 'v*'

jobs:
  docker:
    runs-on: ubuntu-latest
    steps:

    - name: Set up QEMU
      uses: docker/setup-qemu-action@v2

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v2        

    - name:  Check out repo
      uses: actions/checkout@v3
      with:
        fetch-depth: 0

    - name: Cache Docker layers
      uses: actions/cache@v3
      with:
        path: /tmp/.buildx-cache
        key: ${{ runner.os }}-buildx-${{ github.sha }}
        restore-keys: |
          ${{ runner.os }}-buildx-      

    - name: Login to GHCR Docker registry
      uses: docker/login-action@v1
      with: 
        registry: ghcr.io
        username: ${{ github.repository_owner }}
        password: ${{ secrets.GITHUB_TOKEN }}

    - name: Set outputs
      run: |
        echo "RELEASE_TAG=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV

    - name: Build and push image
      uses: docker/build-push-action@v2
      with:
        context: ./
        file: ./Dockerfile
        platforms: linux/amd64
        push: true
        cache-from: type=local,src=/tmp/.buildx-cache
        cache-to: type=local,dest=/tmp/.buildx-cache
        tags: |
          ghcr.io/grassrootseconomics/farmstar-survey-backend/farmstar-survey-backend:latest
          ghcr.io/grassrootseconomics/farmstar-survey-backend/farmstar-survey-backend:${{ env.RELEASE_TAG }}