Add per module policy service refresh

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

Change-Id: I83d3ff31083dd687c5b2d76c8297b5e74a7caa1a

manifests/deps.pp

@@ -30,7 +30,7 @@ class glance::deps {
 
   # policy config should occur in the config block also.
   Anchor['glance::config::begin']
-  -> Openstacklib::Policy<||>
+  -> Openstacklib::Policy<| tag == 'glance' |>
   ~> Anchor['glance::config::end']
 
   # On any uwsgi config change, we must restart Glance API.

manifests/policy.pp

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

spec/classes/glance_policy_spec.rb

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