Add per module policy service refresh

Updating the policies for this project should only
refresh the services that reads it.

Change-Id: Ie848a4ead3c493f01bf941e57741616d4c4cda47

manifests/deps.pp

@@ -35,7 +35,7 @@ class designate::deps {
 
   # policy config should occur in the config block also.
   Anchor['designate::config::begin']
-  -> Openstacklib::Policy<||>
+  -> Openstacklib::Policy<| tag == 'designate' |>
   ~> Anchor['designate::config::end']
 
   # On any uwsgi config change, we must restart Designate APIs.

manifests/policy.pp

@@ -65,6 +65,7 @@ class designate::policy (
     file_group   => $::designate::params::group,
     file_format  => 'yaml',
     purge_config => $purge_config,
+    tag          => 'designate',
   }
 
   create_resources('openstacklib::policy', { $policy_path => $policy_parameters })

spec/classes/designate_policy_spec.rb

@@ -33,6 +33,7 @@ describe 'designate::policy' do
           :file_group   => 'designate',
           :file_format  => 'yaml',
           :purge_config => false,
+          :tag          => 'designate',
         )
         is_expected.to contain_oslo__policy('designate_config').with(
           :enforce_scope        => false,
@@ -63,6 +64,7 @@ describe 'designate::policy' do
           :file_group   => 'designate',
           :file_format  => 'yaml',
           :purge_config => true,
+          :tag          => 'designate',
         )
         is_expected.to contain_oslo__policy('designate_config').with(
           :enforce_scope        => false,