compute: add sync_power_state_interval parameter

We need this parameter in tripleo:
Ifc817ba77187d454c24090c93461b1edad9fe7c4

Depends-On: I6333f6127640a9f3f4bebdc10bc467377ae3ed51
Change-Id: Ie82d88f16b42d4405853153460e20f38ba42714a

manifests/compute.pp

@@ -147,6 +147,11 @@
 #   (optional) Maximum number of greenthreads to use when syncing power states.
 #   Defaults to $::os_service_default
 #
+# [*sync_power_state_interval*]
+#   (optional) Interval to sync power states between the database and the hypervisor. Set
+#   to -1 to disable. Setting this to 0 will run at the default rate.
+#   Defaults to $::os_service_default
+#
 # [*consecutive_build_service_disable_threshold*]
 #   (optional) Max number of consecutive build failures before the nova-compute
 #   will disable itself.
@@ -215,6 +220,7 @@ class nova::compute (
   $barbican_api_version                        = $::os_service_default,
   $max_concurrent_live_migrations              = $::os_service_default,
   $sync_power_state_pool_size                  = $::os_service_default,
+  $sync_power_state_interval                   = $::os_service_default,
   $consecutive_build_service_disable_threshold = $::os_service_default,
   $keymgr_backend                              = 'nova.keymgr.conf_key_mgr.ConfKeyManager',
   $verify_glance_signatures                    = $::os_service_default,
@@ -307,6 +313,7 @@ class nova::compute (
     'barbican/barbican_api_version':             value => $barbican_api_version;
     'DEFAULT/max_concurrent_live_migrations':    value => $max_concurrent_live_migrations;
     'DEFAULT/sync_power_state_pool_size':        value => $sync_power_state_pool_size;
+    'DEFAULT/sync_power_state_interval':         value => $sync_power_state_interval;
     'compute/consecutive_build_service_disable_threshold':
       value => $consecutive_build_service_disable_threshold;
   }

spec/classes/nova_compute_spec.rb

@@ -37,6 +37,7 @@ describe 'nova::compute' do
       it { is_expected.to contain_nova_config('glance/verify_glance_signatures').with_value('<SERVICE DEFAULT>') }
       it { is_expected.to contain_nova_config('DEFAULT/max_concurrent_live_migrations').with_value('<SERVICE DEFAULT>') }
       it { is_expected.to contain_nova_config('DEFAULT/sync_power_state_pool_size').with_value('<SERVICE DEFAULT>') }
+      it { is_expected.to contain_nova_config('DEFAULT/sync_power_state_interval').with_value('<SERVICE DEFAULT>') }
       it { is_expected.to contain_nova_config('compute/consecutive_build_service_disable_threshold').with_value('<SERVICE DEFAULT>') }
       it { is_expected.to contain_nova_config('DEFAULT/reserved_huge_pages').with_value('<SERVICE DEFAULT>') }
 
@@ -85,6 +86,7 @@ describe 'nova::compute' do
           :barbican_auth_endpoint             => 'http://127.0.0.1:5000/v3',
           :max_concurrent_live_migrations     => '4',
           :sync_power_state_pool_size         => '10',
+          :sync_power_state_interval          => '0',
           :verify_glance_signatures           => true,
           :consecutive_build_service_disable_threshold => '9',
         }
@@ -144,6 +146,8 @@ describe 'nova::compute' do
 
       it { is_expected.to contain_nova_config('DEFAULT/sync_power_state_pool_size').with_value('10') }
 
+      it { is_expected.to contain_nova_config('DEFAULT/sync_power_state_interval').with_value('0') }
+
       it { is_expected.to contain_nova_config('compute/consecutive_build_service_disable_threshold').with_value('9') }
 
       it { is_expected.to contain_nova_config('DEFAULT/resume_guests_state_on_host_boot').with_value(true) }