cookbook-openstack-compute/recipes/libvirt.rb

150 lines
4.4 KiB
Ruby

# encoding: UTF-8
#
# Cookbook:: openstack-compute
# Recipe:: libvirt
#
# Copyright:: 2012, Rackspace US, Inc.
# Copyright:: 2013, Craig Tracey <craigtracey@gmail.com>
# Copyright:: 2020, Oregon State University
#
# 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.
#
require 'mixlib/shellout'
platform_options = node['openstack']['compute']['platform']
package platform_options['libvirt_packages'] do
options platform_options['package_overrides']
action :upgrade
end
# TODO: (jklare) methods do not belong in recipes, this has to be moved!
def update_grub_default_kernel(flavor = 'default')
default_boot = 0
current_default = nil
# parse menu.lst, to find boot index for selected flavor
File.open('/boot/grub/menu.lst') do |f|
f.lines.each do |line|
current_default = line.scan(/\d/).first.to_i if line.start_with?('default')
next unless line.start_with?('title')
if flavor.eql?('xen')
# found boot index
break if line.include?('Xen')
else
# take first kernel as default, unless we are searching for xen
# kernel
break
end
default_boot += 1
end
end
# change default option for /boot/grub/menu.lst
unless current_default.eql?(default_boot)
::Chef::Log.info("Changed grub default to #{default_boot}")
shell_out("sed -i -e 's;^default.*;default #{default_boot};' /boot/grub/menu.lst")
end
end
def update_boot_kernel_and_trigger_reboot(flavor = 'default')
# only default and xen flavor is supported by this helper right now
if File.exist?('/boot/grub/menu.lst')
update_grub_default_kernel(flavor)
elsif File.exist?('/etc/default/grub')
update_grub2_default_kernel(flavor)
else
::Chef::Application.fatal!(
'Unknown bootloader. Could not change boot kernel.'
)
end
# trigger reboot through reboot_handler, if kernel-$flavor is not yet
# running
unless shell_out('uname -r').stdout.include?(flavor)
node.run_state['reboot'] = true
end
end
libvirt_group = node['openstack']['compute']['libvirt']['group']
group libvirt_group do
append true
members [node['openstack']['compute']['group']]
action :create
only_if { platform_family? %w(rhel) }
end
# http://fedoraproject.org/wiki/Getting_started_with_OpenStack_EPEL#Installing_within_a_VM
# ln -s /usr/libexec/qemu-kvm /usr/bin/qemu-system-x86_64
link '/usr/bin/qemu-system-x86_64' do
to '/usr/libexec/qemu-kvm'
only_if { platform_family? %w(rhel) }
end
service 'dbus' do
service_name platform_options['dbus_service']
supports status: true, restart: true
action [:enable, :start]
end
service 'libvirt-bin' do
service_name platform_options['libvirt_service']
supports status: true, restart: true
action [:enable, :start]
end
execute 'Deleting default libvirt network' do
command 'virsh net-destroy default'
only_if 'virsh net-list | grep -q default'
end
node.default['openstack']['compute']['libvirt']['conf']['unix_sock_group'] = "'#{libvirt_group}'"
template '/etc/libvirt/libvirtd.conf' do
source 'libvirtd.conf.erb'
owner 'root'
group 'root'
mode '644'
variables(
service_config: node['openstack']['compute']['libvirt']['conf']
)
notifies :restart, 'service[libvirt-bin]', :immediately
end
# The package libvirt-bin on debian now provides the service libvirtd
# (libvirt-bin is still defined as an alias) and reads its environment from
# /etc/libvirt/libvirtd instead of the previously used
# /etc/default/libvirt-bin.
template '/etc/default/libvirtd' do
source 'libvirt-bin.erb'
owner 'root'
group 'root'
mode '644'
notifies :restart, 'service[libvirt-bin]', :immediately
only_if { platform_family? 'debian' }
end
template '/etc/sysconfig/libvirtd' do
source 'libvirtd.erb'
owner 'root'
group 'root'
mode '644'
notifies :restart, 'service[libvirt-bin]', :immediately
only_if { platform_family? %w(rhel) }
end
volume_backend = node['openstack']['compute']['libvirt']['volume_backend']
include_recipe "openstack-compute::libvirt_#{volume_backend}" unless volume_backend.nil?