build_worker_images.yml

name: Build default worker images
# Default images are built and pushed when pushed to master, release, and pull request, 
# and only when the corresponding dockerfiles are changed.
# This workflow ensures the worker images are up-to-date on Docker Hub.
on:
  push:
    branches: [master]
    paths: ["docker_config/dockerfiles/Dockerfile.default-*"]
  release:
    types: [published]
    paths: ["docker_config/dockerfiles/Dockerfile.default-*"]
  pull_request:
    paths: ["docker_config/dockerfiles/Dockerfile.default-*"]

jobs:
  build_default:
    name: Build and push default worker images
    runs-on: ubuntu-latest
    strategy:
      matrix:
        service: [default-cpu, default-gpu]
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-python@v4
        with:
          python-version: 3.7
      - uses: actions/cache@v3
        with:
          path: ~/.cache/pip
          key: pip-${{ hashFiles('requirements.txt') }}
          restore-keys: |
            pip-
      - run: pip install -r requirements.txt
      - run: | 
          sudo swapoff -a
          sudo rm -f /swapfile
          sudo rm -rf /opt/ghc
          sudo apt clean
          docker rmi $(docker image ls -aq)
          df -h
      - run: python3 codalab_service.py build --version ${VERSION} ${SERVICE} $([ -z "${CODALAB_DOCKER_USERNAME}" ] || echo "--push")
        env:
          CODALAB_DOCKER_USERNAME: ${{ secrets.CODALAB_DOCKER_USERNAME }}
          CODALAB_DOCKER_PASSWORD: ${{ secrets.CODALAB_DOCKER_PASSWORD }}
          # Set tag to latest if triggered by release,
          # use the branch name of the PR if triggered by pull request,
          # "master" if on a push-triggered build
          VERSION: ${{ (github.event_name == 'release' && 'latest') || github.head_ref || 'master' }}
          SERVICE: ${{ matrix.service }}