# NOTE Github Actions execution environments lack a terminal, needed for
# some integration tests. Two ways to get a terminal are used below:
#
# 1. script utility -- for "local" integration tests;
# 2. ssh -tt -- for Vagrant VMs (script is buggy on CentOS 7).

name: ci
on:
  push:
    tags:
      - v*
    branches:
      - master
  pull_request:

jobs:
  test:
    runs-on: ubuntu-20.04
    strategy:
      fail-fast: false
      matrix:
        go-version: [1.14.x, 1.15.x, 1.16.x]
        rootless: ["rootless", ""]

    steps:

    - name: checkout
      uses: actions/checkout@v2

    - name: install deps
      run: |
        # criu repo
        sudo add-apt-repository -y ppa:criu/ppa
        # apt-add-repository runs apt update so we don't have to
        sudo apt -q install libseccomp-dev criu

    - name: install go ${{ matrix.go-version }}
      uses: actions/setup-go@v2
      with:
        stable: '!contains(${{ matrix.go-version }}, "beta") && !contains(${{ matrix.go-version }}, "rc")'
        go-version: ${{ matrix.go-version }}

    - name: build
      run: sudo -E PATH="$PATH" make all

    - name: install bats
      uses: mig4/setup-bats@v1
      with:
        bats-version: 1.2.1

    - name: unit test
      if: matrix.rootless != 'rootless'
      run: sudo -E PATH="$PATH" -- make localunittest

    - name: add rootless user
      if: matrix.rootless == 'rootless'
      run: |
        sudo useradd -u2000 -m -d/home/rootless -s/bin/bash rootless
        # Allow root to execute `ssh rootless@localhost` in tests/rootless.sh
        ssh-keygen -t ecdsa -N "" -f $HOME/rootless.key
        sudo mkdir -m 0700 -p /home/rootless/.ssh
        sudo cp $HOME/rootless.key.pub /home/rootless/.ssh/authorized_keys
        sudo chown -R rootless.rootless /home/rootless

    - name: integration test (fs driver)
      run: sudo -E PATH="$PATH" script -e -c 'make local${{ matrix.rootless }}integration'

    - name: integration test (systemd driver)
      # can't use systemd driver with cgroupv1
      if: matrix.rootless != 'rootless'
      run: sudo -E PATH="$PATH" script -e -c 'make RUNC_USE_SYSTEMD=yes local${{ matrix.rootless }}integration'


  # cgroup v2 unified hierarchy + very recent kernel (openat2)
  fedora:
    # nested virtualization is only available on macOS hosts
    runs-on: macos-10.15
    timeout-minutes: 30
    # only run it if others have passed
    needs: [test]
    steps:
      - uses: actions/checkout@v2
      - name: prepare vagrant
        run: |
          ln -sf Vagrantfile.fedora33 Vagrantfile
          # Retry if it fails (download.fedoraproject.org returns 404 sometimes)
          vagrant up || vagrant up
          vagrant ssh-config >> ~/.ssh/config

      - name: system info
        run: ssh default 'sh -exc "uname -a && systemctl --version && df -T"'

      - name: unit tests
        run: ssh default 'cd /vagrant && sudo make localunittest'

      - name: cgroupv2 with systemd
        run: ssh -tt default "sudo make -C /vagrant localintegration RUNC_USE_SYSTEMD=yes"

      - name: cgroupv2 with fs2
        run: ssh -tt default "sudo make -C /vagrant localintegration"

      - name: cgroupv2 with systemd (rootless)
        run: ssh -tt default "sudo make -C /vagrant localrootlessintegration RUNC_USE_SYSTEMD=yes"

      - name: cgroupv2 with fs2 (rootless)
        run: ssh -tt default "sudo make -C /vagrant localrootlessintegration"


  # kernel 3.10 (frankenized), systemd 219
  centos7:
    # nested virtualization is only available on macOS hosts
    runs-on: macos-10.15
    timeout-minutes: 15
    # only run it if others have passed
    needs: [test]
    steps:
      - uses: actions/checkout@v2
      - name: prepare vagrant
        run: |
          ln -sf Vagrantfile.centos7 Vagrantfile
          vagrant up
          vagrant ssh-config >> ~/.ssh/config

      - name: system info
        run: ssh default 'rpm -q centos-release kernel systemd'

      - name: unit tests
        run: ssh default 'sudo -i make -C /vagrant localunittest'

      - name: integration tests (fs cgroup driver)
        run: ssh -tt default "sudo -i make -C /vagrant localintegration"

      - name: integration tests (systemd cgroup driver)
        run: ssh -tt default "sudo -i make -C /vagrant localintegration RUNC_USE_SYSTEMD=1"

      - name: rootless integration
      # FIXME: rootless is skipped because of EPERM on writing cgroup.procs
        if: false
        run: ssh default "sudo -i make -C /vagrant localrootlessintegration"