84f90bd1bb
The libvirt driver now allows utilizing file backed memory for qemu/KVM virtual machines, via a new configuration attribute ``[libvirt]/file_backed_memory``, defaulting to 0 (disabled). ``[libvirt]/file_backed_memory`` specifies the available capacity in MiB for file backed memory, at the directory configured for ``memory_backing_dir`` in libvirt's ``qemu.conf``. When enabled, the libvirt driver will report the configured value for the total memory capacity of the node, and will report used memory as the sum of all configured guest memory. Running Nova with file_backed_memory requires libvirt version 4.0.0 and qemu version 2.6.0 Related-Bug: 1793687 Change-Id: I0d9eb21fcab01266e501b7fc63c5b2bbb244956a
131 lines
3.8 KiB
Ruby
131 lines
3.8 KiB
Ruby
require 'spec_helper'
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describe 'nova::compute::libvirt::qemu' do
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let :pre_condition do
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'include nova
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include nova::compute
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include nova::compute::libvirt'
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end
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shared_examples_for 'nova compute libvirt with qemu' do
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context 'when not configuring qemu' do
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let :params do
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{
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:configure_qemu => false
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}
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end
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it { is_expected.to contain_augeas('qemu-conf-limits').with({
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:context => '/files/etc/libvirt/qemu.conf',
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:changes => [ "rm max_files", "rm max_processes", "rm group", "rm vnc_tls", "rm vnc_tls_x509_verify", "rm memory_backing_dir" ],
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}).that_notifies('Service[libvirt]') }
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end
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context 'when configuring qemu by default' do
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let :params do
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{
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:configure_qemu => true
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}
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end
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it { is_expected.to contain_augeas('qemu-conf-limits').with({
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:context => '/files/etc/libvirt/qemu.conf',
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:changes => [ "set max_files 1024", "set max_processes 4096", "set vnc_tls 0", "set vnc_tls_x509_verify 0" ],
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:tag => 'qemu-conf-augeas',
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}).that_notifies('Service[libvirt]') }
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end
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context 'when configuring qemu with overridden parameters' do
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let :params do
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{
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:configure_qemu => true,
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:max_files => 32768,
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:max_processes => 131072,
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}
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end
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it { is_expected.to contain_augeas('qemu-conf-limits').with({
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:context => '/files/etc/libvirt/qemu.conf',
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:changes => [ "set max_files 32768", "set max_processes 131072", "set vnc_tls 0", "set vnc_tls_x509_verify 0" ],
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:tag => 'qemu-conf-augeas',
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}).that_notifies('Service[libvirt]') }
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end
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context 'when configuring qemu with group parameter' do
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let :params do
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{
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:configure_qemu => true,
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:group => 'openvswitch',
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:max_files => 32768,
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:max_processes => 131072,
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:memory_backing_dir => '/tmp'
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}
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end
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it { is_expected.to contain_augeas('qemu-conf-limits').with({
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:context => '/files/etc/libvirt/qemu.conf',
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:changes => [
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"set max_files 32768",
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"set max_processes 131072",
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"set vnc_tls 0",
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"set vnc_tls_x509_verify 0",
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"set group openvswitch",
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"set memory_backing_dir /tmp"
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],
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:tag => 'qemu-conf-augeas',
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}).that_notifies('Service[libvirt]') }
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end
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context 'when configuring qemu with vnc_tls' do
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let :params do
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{
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:configure_qemu => true,
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:vnc_tls => true
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}
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end
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it { is_expected.to contain_augeas('qemu-conf-limits').with({
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:context => '/files/etc/libvirt/qemu.conf',
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:changes => [
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"set max_files 1024",
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"set max_processes 4096",
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"set vnc_tls 1",
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"set vnc_tls_x509_verify 1"
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],
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:tag => 'qemu-conf-augeas',
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}).that_notifies('Service[libvirt]') }
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end
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context 'when configuring qemu without vnc_tls_verify' do
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let :params do
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{
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:configure_qemu => true,
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:vnc_tls => true,
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:vnc_tls_verify => false
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}
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end
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it { is_expected.to contain_augeas('qemu-conf-limits').with({
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:context => '/files/etc/libvirt/qemu.conf',
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:changes => [
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"set max_files 1024",
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"set max_processes 4096",
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"set vnc_tls 1",
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"set vnc_tls_x509_verify 0"
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],
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:tag => 'qemu-conf-augeas',
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}).that_notifies('Service[libvirt]') }
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end
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end
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on_supported_os({
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:supported_os => OSDefaults.get_supported_os
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}).each do |os,facts|
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context "on #{os}" do
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let (:facts) do
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facts.merge!(OSDefaults.get_facts())
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end
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it_configures 'nova compute libvirt with qemu'
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end
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end
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end
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