Add per module policy service refresh

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

Change-Id: I4733a5d445621ff1cb270fa3be3811b531b9a7b8
(cherry picked from commit 160b0b18d1)
(cherry picked from commit b5c621fbea)

manifests/deps.pp

@@ -39,7 +39,7 @@ class trove::deps {
   # policy config should occur in the config block also as soon as
   # puppet-trove supports it. Leave commented out for now.
   Anchor['trove::config::begin']
-  -> Openstacklib::Policy<||>
+  -> Openstacklib::Policy<| tag == 'trove' |>
   ~> Anchor['trove::config::end']
 
   # all db settings should be applied and all packages should be installed

manifests/policy.pp

@@ -62,6 +62,7 @@ class trove::policy (
     file_group   => $::trove::params::group,
     file_format  => 'yaml',
     purge_config => $purge_config,
+    tag          => 'trove',
   }
 
   create_resources('openstacklib::policy', { $policy_path => $policy_parameters })

spec/classes/trove_policy_spec.rb

@@ -32,6 +32,7 @@ describe 'trove::policy' do
           :file_group   => 'trove',
           :file_format  => 'yaml',
           :purge_config => false,
+          :tag          => 'trove',
         )
         is_expected.to contain_oslo__policy('trove_config').with(
           :enforce_scope        => false,
@@ -61,6 +62,7 @@ describe 'trove::policy' do
           :file_group   => 'trove',
           :file_format  => 'yaml',
           :purge_config => true,
+          :tag          => 'trove',
         )
         is_expected.to contain_oslo__policy('trove_config').with(
           :enforce_scope        => false,