publish.yml

name: Publish Docker image

on:
  schedule:
    - cron: '3 2 * * *'
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    steps:
    - name: Checkout Dodona repo
      uses: actions/checkout@v2
      with:
        repository: 'dodona-edu/dodona'
        ref: 'develop'
    - name: Checkout docker files
      uses: actions/checkout@v2
      with:
        path: docker-files
    - name: Copy files
      run: cp docker-files/* .
    - name: Login to the container registry
      run: echo ${{ secrets.GITHUB_TOKEN }} | docker login ghcr.io -u $GITHUB_ACTOR --password-stdin
    - name: Download the latest image for caching
      run: docker pull ghcr.io/dodona-edu/dodona:develop-latest
    - name: Build the new image
      run: docker build . -t ghcr.io/dodona-edu/dodona:develop-latest --cache-from ghcr.io/dodona-edu/dodona:develop-latest
    - name: Push the new image
      run: docker push ghcr.io/dodona-edu/dodona:develop-latest