240 lines
6.9 KiB
Ruby
240 lines
6.9 KiB
Ruby
# encoding: UTF-8
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#
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# Cookbook Name:: openstack-compute
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# Recipe:: libvirt
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#
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# Copyright 2012, Rackspace US, Inc.
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# Copyright 2013, Craig Tracey <craigtracey@gmail.com>
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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require 'mixlib/shellout'
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platform_options = node['openstack']['compute']['platform']
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platform_options['libvirt_packages'].each do |pkg|
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package pkg do
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options platform_options['package_overrides']
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action :upgrade
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end
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end
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def update_grub_default_kernel(flavor = 'default') # rubocop:disable MethodLength
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default_boot, current_default = 0, nil
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# parse menu.lst, to find boot index for selected flavor
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File.open('/boot/grub/menu.lst') do |f|
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f.lines.each do |line|
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current_default = line.scan(/\d/).first.to_i if line.start_with?('default')
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if line.start_with?('title')
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if flavor.eql?('xen')
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# found boot index
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break if line.include?('Xen')
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else
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# take first kernel as default, unless we are searching for xen
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# kernel
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break
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end
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default_boot += 1
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end
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end
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end
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# change default option for /boot/grub/menu.lst
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unless current_default.eql?(default_boot)
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::Chef::Log.info('Changed grub default to #{default_boot}')
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Mixlib::ShellOut.new('sed -i -e \'s;^default.*;default #{default_boot};\' /boot/grub/menu.lst').run_command
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end
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end
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def update_grub2_default_kernel(flavor = 'default')
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boot_entry = "'openSUSE GNU/Linux, with Xen hypervisor'"
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begin
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Mixlib::ShellOut.new("grub2-set-default #{boot_entry}").run_command.error!
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::Chef::Log.info("Changed grub2 default to #{boot_entry}")
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rescue Mixlib::ShellOut::ShellCommandFailed => e
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::Chef::Application.fatal!(
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"Unable to change grub2 default to #{boot_entry}
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#{e.message}")
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end
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end
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def update_boot_kernel_and_trigger_reboot(flavor = 'default') # rubocop:disable MethodLength
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# only default and xen flavor is supported by this helper right now
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if File.exists?('/boot/grub/menu.lst')
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update_grub_default_kernel(flavor)
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elsif File.exists?('/etc/default/grub')
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update_grub2_default_kernel(flavor)
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else
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::Chef::Application.fatal!(
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'Unknown bootloader. Could not change boot kernel.')
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end
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# trigger reboot through reboot_handler, if kernel-$flavor is not yet
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# running
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unless Mixlib::ShellOut.new('uname -r').run_command.stdout.include?(flavor)
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node.run_state['reboot'] = true
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end
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end
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# on suse nova-compute don't depends on any virtualization mechanism
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case node['platform_family']
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when 'suse'
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case node['openstack']['compute']['libvirt']['virt_type']
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when 'kvm'
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node['openstack']['compute']['platform']['kvm_packages'].each do |pkg|
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package pkg do
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options platform_options['package_overrides']
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action :upgrade
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end
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end
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execute 'loading kvm modules' do
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command 'grep -q vmx /proc/cpuinfo && /sbin/modprobe kvm-intel; grep -q svm /proc/cpuinfo && /sbin/modprobe kvm-amd; /sbin/modprobe vhost-net'
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end
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# NOTE(saschpe): Allow switching from XEN to KVM:
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update_boot_kernel_and_trigger_reboot
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when 'xen'
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node['openstack']['compute']['platform']['xen_packages'].each do |pkg|
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package pkg do
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options platform_options['package_overrides']
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action :upgrade
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end
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end
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update_boot_kernel_and_trigger_reboot('xen')
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when 'qemu'
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node['openstack']['compute']['platform']['kvm_packages'].each do |pkg|
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package pkg do
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options platform_options['package_overrides']
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action :upgrade
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end
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end
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when 'lxc'
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node['openstack']['compute']['platform']['lxc_packages'].each do |pkg|
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package pkg do
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options platform_options['package_overrides']
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action :upgrade
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end
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end
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service 'boot.cgroup' do
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action [:enable, :start]
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end
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end
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end
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group node['openstack']['compute']['libvirt']['group'] do
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append true
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members [node['openstack']['compute']['group']]
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action :create
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only_if { platform_family? %w{suse fedora rhel} }
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end
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# http://fedoraproject.org/wiki/Getting_started_with_OpenStack_EPEL#Installing_within_a_VM
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# ln -s /usr/libexec/qemu-kvm /usr/bin/qemu-system-x86_64
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link '/usr/bin/qemu-system-x86_64' do
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to '/usr/libexec/qemu-kvm'
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only_if { platform_family? %w{fedora rhel} }
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end
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service 'dbus' do
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service_name platform_options['dbus_service']
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supports status: true, restart: true
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action [:enable, :start]
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end
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service 'libvirt-bin' do
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service_name platform_options['libvirt_service']
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supports status: true, restart: true
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action [:enable, :start]
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end
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execute 'Disabling default libvirt network' do
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command 'virsh net-autostart default --disable'
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only_if 'virsh net-list | grep -q default'
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end
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execute 'Deleting default libvirt network' do
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command 'virsh net-destroy default'
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only_if 'virsh net-list | grep -q default'
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end
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# use bios system-uuid as host uuid
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ruby_block "set_libvirt_host_uuid" do
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block do
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# use bios system-uuid as host uuid
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if node['openstack']['compute']['libvirt']['host_uuid'].nil?
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cmd = Mixlib::ShellOut.new('dmidecode -s system-uuid').run_command
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system_uuid = cmd.stdout.strip
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invalid_uuid = ["00000000-0000-0000-0000-000000000000", \
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"FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF"]
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if system_uuid.length.eql?(36) and \
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!invalid_uuid.include?(system_uuid.upcase)
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node.set['openstack']['compute']['libvirt']['host_uuid'] = system_uuid
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end
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end
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end
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action :run
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end
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# TODO(breu): this section needs to be rewritten to support key privisioning
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template '/etc/libvirt/libvirtd.conf' do
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source 'libvirtd.conf.erb'
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owner 'root'
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group 'root'
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mode 00644
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variables(
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auth_tcp: node['openstack']['compute']['libvirt']['auth_tcp'],
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libvirt_group: node['openstack']['compute']['libvirt']['group']
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)
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notifies :restart, 'service[libvirt-bin]', :immediately
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not_if { platform_family? 'suse' }
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end
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template '/etc/default/libvirt-bin' do
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source 'libvirt-bin.erb'
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owner 'root'
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group 'root'
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mode 00644
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notifies :restart, 'service[libvirt-bin]', :immediately
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only_if { platform_family? %w{debian} }
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end
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template '/etc/sysconfig/libvirtd' do
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source 'libvirtd.erb'
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owner 'root'
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group 'root'
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mode 00644
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notifies :restart, 'service[libvirt-bin]', :immediately
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only_if { platform_family? %w{fedora rhel} }
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end
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volume_backend = node['openstack']['compute']['libvirt']['volume_backend']
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include_recipe "openstack-compute::libvirt_#{volume_backend}" unless volume_backend.nil?
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