systemd/.github/workflows/mkosi.yml

---
# vi: ts=2 sw=2 et:
# SPDX-License-Identifier: LGPL-2.1-or-later
# Simple boot tests that build and boot the mkosi images generated by the mkosi config files in mkosi.conf.d/.
name: mkosi

on:
  push:
    branches:
      - main
      - v[0-9]+-stable
    paths:
      - '**'
      - '!README*'
      - '!LICENSE*'
      - '!LICENSES/**'
      - '!TODO'
      - '!docs/**'
      - '!man/**'
      - '!catalog/**'
      - '!shell-completion/**'
      - '!po/**'
      - '!.**'
      - '.github/**'

  pull_request:
    branches:
      - main
      - v[0-9]+-stable
    paths:
      - '**'
      - '!README*'
      - '!LICENSE*'
      - '!LICENSES/**'
      - '!TODO'
      - '!docs/**'
      - '!man/**'
      - '!catalog/**'
      - '!shell-completion/**'
      - '!po/**'
      - '!.**'
      - '.github/**'

permissions:
  contents: read

jobs:
  ci:
    runs-on: ubuntu-22.04
    concurrency:
      group: ${{ github.workflow }}-${{ matrix.distro }}-${{ matrix.release }}-${{ github.ref }}
      cancel-in-progress: true
    strategy:
      fail-fast: false
      matrix:
        include:
          - distro: arch
            release: rolling
          - distro: debian
            release: testing
          - distro: ubuntu
            release: noble
          - distro: fedora
            release: "39"
          - distro: fedora
            release: rawhide
          - distro: opensuse
            release: tumbleweed
          - distro: centos
            release: "9"

    env:
      SYSTEMD_LOG_LEVEL: debug

    steps:
    - uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633
    - uses: systemd/mkosi@5fd70560a1b1ac854b9e1c5a450df311f9000121

    # Freeing up disk space with rm -rf can take multiple minutes. Since we don't need the extra free space
    # immediately, we remove the files in the background. However, we first move them to a different location
    # so that nothing tries to use anything in these directories anymore while we're busy deleting them.
    - name: Free disk space
      run: |
        sudo mv /usr/local /usr/local.trash
        sudo mv /opt/hostedtoolcache /opt/hostedtoolcache.trash
        sudo systemd-run rm -rf /usr/local.trash /opt/hostedtoolcache.trash

    - name: Configure
      run: |
        tee mkosi.local.conf <<EOF
        [Distribution]
        Distribution=${{ matrix.distro }}
        Release=${{ matrix.release }}

        [Output]
        # Build a disk image in CI as this logic is much more prone to breakage.
        Format=disk

        [Host]
        ToolsTree=default
        ToolsTreeDistribution=fedora
        QemuVsock=yes
        QemuKvm=yes
        # TODO: Drop once https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2038777 is fixed in Github Actions
        QemuFirmware=uefi
        Ephemeral=yes
        EOF

        # These should override the options from mkosi.conf so we put them in a dropin that's ordered later
        # instead.
        tee mkosi.conf.d/99-ci.conf <<EOF
        [Host]
        KernelCommandLineExtra=systemd.unit=mkosi-check-and-shutdown.service
                               systemd.log_level=debug
                               systemd.journald.max_level_console=debug
                               # udev's debug log output is very verbose, so up it to info in CI.
                               udev.log_level=info
                               # Root device can take a long time to appear, so let's bump the timeout.
                               systemd.default_device_timeout_sec=180
        EOF

        # For erofs, we have to install linux-modules-extra-azure, but that doesn't match the running kernel
        # version, so we can't load the erofs module. squashfs is a builtin module so we use that instead.

        mkdir -p mkosi.images/system/mkosi.repart/10-usr.conf.d
        tee mkosi.images/system/mkosi.repart/10-usr.conf.d/squashfs.conf <<EOF
        [Partition]
        Format=squashfs
        EOF

        # The emergency shell is not useful in the CI, as it just blocks for a long time before the job
        # eventually times out. Override it to just shutdown immediately.
        mkdir -p mkosi.images/initrd/mkosi.extra/usr/lib/systemd/system/emergency.service.d/
        mkdir -p mkosi.images/system/mkosi.extra/usr/lib/systemd/system/emergency.service.d/
        tee mkosi.images/initrd/mkosi.extra/usr/lib/systemd/system/emergency.service.d/poweroff.conf <<EOF
        [Unit]
        FailureAction=exit
        [Service]
        ExecStartPre=
        ExecStart=
        ExecStart=false
        EOF
        cp mkosi.images/initrd/mkosi.extra/usr/lib/systemd/system/emergency.service.d/poweroff.conf mkosi.images/system/mkosi.extra/usr/lib/systemd/system/emergency.service.d/poweroff.conf

    - name: Generate secure boot key
      run: mkosi --debug genkey

    - name: Show image summary
      run: mkosi summary

    - name: Build
      run: mkosi --debug

    - name: Boot systemd-nspawn
      run: test "$(sudo mkosi --debug boot 1>&2; echo $?)" -eq 123

    - name: Boot QEMU
      run: timeout -k 30 10m test "$(mkosi --debug qemu 1>&2; echo $?)" -eq 123