#
# Cookbook:: esh_lxd
# Recipe:: setup
#
# Copyright:: 2022, https://easyself.host
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# systemd need to be booted with systemd.unified_cgroup_hierarchy=0
# otherwise, cgroup v1 container cannot be started, only v2
# and some docker containers use v1

#execute 'set systemd boot mode to cgroup v1' do
#  command <<~EOT
#  echo '# use cgroup1' >> /etc/default/grub
#  echo 'GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX systemd.unified_cgroup_hierarchy=0"' \
#    >> /etc/default/grub
#  EOT
#  notifies :run, 'execute[update grub]', :immediately
#  not_if 'grep -q cgroup1 /etc/default/grub'
#end
#
#cgroup = `stat -fc %T /sys/fs/cgroup/`.strip
#ruby_block 'Check cgroup version' do
#  block do
#    if cgroup == 'cgroup2fs'
#      Chef::Log.fatal('You need to reboot now to enable cgroup v1!')
#      raise 'You need to reboot now to enable cgroup v1!'
#    end
#  end
#  action :run
#end
#
#execute 'update grub' do
#  command 'update-grub2'
#  action :nothing
#end

template '/tmp/lxd.yml' do
  owner 'root'
  group 'root'
  mode '0644'
  not_if 'lxc storage info nvme'
  action :create
end

execute 'lxd init' do
  command 'lxd init --preseed < /tmp/lxd.yml'
  not_if 'lxc storage info nvme'
  action :run
end

execute 'lxd change images storage location' do
  command <<~EOT
  lxc storage volume create nvme images
  lxc config set storage.images_volume nvme/images
  EOT
  action :run
  not_if 'lxc storage volume info nvme images'
end

unless node['esh']['lxd']['mtu'].nil?
  mtu = node['esh']['lxd']['mtu']
  execute "lxc network set lxdbr0 bridge.mtu #{mtu}" do
    command "lxc network set lxdbr0 bridge.mtu #{mtu}"
    action :run
    not_if "lxc network get lxdbr0 bridge.mtu | grep -q #{mtu}"
  end
end