action.yaml

name: setup-mkosi
description: Install mkosi

runs:
  using: composite
  steps:

  - name: Permit unprivileged access to kvm, vhost-vsock and vhost-net devices
    shell: bash
    run: |
      sudo mkdir -p /etc/tmpfiles.d
      sudo cp /usr/lib/tmpfiles.d/static-nodes-permissions.conf /etc/tmpfiles.d/
      sudo sed -i '/kvm/s/0660/0666/g'   /etc/tmpfiles.d/static-nodes-permissions.conf
      sudo sed -i '/vhost/s/0660/0666/g' /etc/tmpfiles.d/static-nodes-permissions.conf
      sudo tee /etc/udev/rules.d/99-kvm4all.rules <<- EOF
      KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"
      KERNEL=="vhost-vsock", GROUP="kvm", MODE="0666", OPTIONS+="static_node=vhost-vsock"
      KERNEL=="vhost-net", GROUP="kvm", MODE="0666", OPTIONS+="static_node=vhost-net"
      EOF
      sudo udevadm control --reload-rules
      sudo modprobe kvm
      sudo modprobe vhost_vsock
      sudo modprobe vhost_net
      [[ -e /dev/kvm ]] && sudo udevadm trigger --name-match=kvm
      sudo udevadm trigger --name-match=vhost-vsock
      sudo udevadm trigger --name-match=vhost-net
      [[ -e /dev/kvm ]] && sudo chmod 666 /dev/kvm
      sudo chmod 666 /dev/vhost-vsock
      sudo chmod 666 /dev/vhost-net
      lsmod
      [[ -e /dev/kvm ]] && ls -l /dev/kvm
      ls -l /dev/vhost-*
      id

  - name: Dependencies
    shell: bash
    run: |
      # This is added by default, and it is often broken, but we don't need anything from it
      sudo rm -f /etc/apt/sources.list.d/microsoft-prod.list
      # For archlinux-keyring and pacman
      sudo add-apt-repository ppa:michel-slm/kernel-utils
      sudo apt-get update
      sudo apt-get install --assume-yes --no-install-recommends \
        archlinux-keyring \
        bubblewrap \
        debian-archive-keyring \
        dnf \
        pacman-package-manager \
        systemd-container \
        zypper

      sudo pacman-key --init
      sudo pacman-key --populate archlinux

  - name: Install
    shell: bash
    run: sudo ln -svf ${{ github.action_path }}/bin/mkosi /usr/bin/mkosi