test.yaml

# This is a GitHub workflow defining a set of jobs with a set of steps.
# ref: https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions
#
name: Tests

on:
  pull_request:
    paths-ignore:
      - "docs/**"
      - "**.md"
      - ".github/workflows/*.yaml"
      - "!.github/workflows/test.yaml"
  push:
    paths-ignore:
      - "docs/**"
      - "**.md"
      - ".github/workflows/*.yaml"
      - "!.github/workflows/test.yaml"
    branches-ignore:
      - "dependabot/**"
      - "pre-commit-ci-update-config"
    tags: ["**"]
  workflow_dispatch:

jobs:
  test:
    runs-on: ubuntu-22.04
    timeout-minutes: 10

    strategy:
      fail-fast: false
      matrix:
        include:
          - python-version: "3.8"
            pip-install-spec: "jupyterhub==2.3.1 sqlalchemy==1.*"
          - python-version: "3.9"
            pip-install-spec: "jupyterhub==3.*"
          - python-version: "3.11"
            pip-install-spec: "jupyterhub==4.*"
          - python-version: "3.11"
            pip-install-spec: "jupyterhub==4.*"
            test-variation: internal-ssl
          - python-version: "3.11"
            pip-install-spec: "jupyterhub==4.*"
            test-variation: podman

    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-python@v4
        with:
          python-version: ${{ matrix.python-version }}
      - uses: actions/setup-node@v3
        with:
          node-version: "18"

      - name: setup docker swarm
        run: docker swarm init

      - name: Install Python dependencies
        run: |
          pip install ${{ matrix.pip-install-spec }}
          pip install -e "." -r dev-requirements.txt

      - name: List Python dependencies
        run: |
          pip freeze

      - name: Install Node dependencies
        run: |
          npm install -g configurable-http-proxy

      - name: Run tests
        if: matrix.test-variation == ''
        run: |
          pytest tests --cov=dockerspawner

      - name: Run examples/internal-ssl tests
        if: matrix.test-variation == 'internal-ssl'
        # FIXME: --cov=dockerspawner is omitted as the tested code lives inside
        #        the built dockerspawner image, so --cov=dockerspawner
        #        referencing the local source code doesn't get us test coverage.
        #
        run: |
          pytest examples/internal-ssl --capture=no

      - name: Run podman tests
        continue-on-error: true
        if: matrix.test-variation == 'podman'
        # Podman's system service is started as a user managed process
        # (user-mode / rootless), and the docker-api provided by podman is used
        # by setting DOCKER_HOST to the podman provided docker-api.
        #
        # ref: https://docs.podman.io/en/latest/markdown/podman-system-service.1.html
        # ref: https://docker-py.readthedocs.io/en/stable/client.html#envvar-DOCKER_HOST
        #
        run: |
          # Default is unix://$XDG_RUNTIME_DIR/podman/podman.sock but XDG_RUNTIME_DIR may not be set
          export DOCKER_HOST=unix://$HOME/podman.sock

          podman system service --time=0 $DOCKER_HOST &

          for n in $(seq 1 10); do
            if ! docker version &>/dev/null; then
              echo "podman system service - starting..."
              sleep 1
            else
              echo "podman system service - started!"
              echo ""
              break
            fi
          done

          # FIXME: we run into an error described in
          #        https://github.com/containers/podman/blob/main/troubleshooting.md#26-running-containers-with-resource-limits-fails-with-a-permissions-error
          #
          #        This is a check for permissions of relevance, where we
          #        conclude we get "memory pids" on ubuntu-22.04. This confirms
          #        that we need additional permissions for the podman system
          #        service we have started as the current user, lacking such
          #        permissions.
          #
          #        If this is resolved, also remove the continue-on-error
          #        section above.
          #
          cat "/sys/fs/cgroup/user.slice/user-$(id -u).slice/user@$(id -u).service/cgroup.controllers"

          pytest tests/test_dockerspawner.py --cov=dockerspawner

      # GitHub action reference: https://github.com/codecov/codecov-action
      - uses: codecov/codecov-action@v3