Add group to policy management

The move of policy.json into code means the file may not exist. We've
added support to ensure that the file exists in the openstacklib but we
need to make sure the permissions are right for each service. This adds
the group information to the policies so it works right.

Depends-On: I26e8b1384f4f69712da9d06a4c565dfd1f17c9ed
Change-Id: Ic5f73993ea4d71fc186272c624a906fcae2dcfa8
Co-Authored-By: Alex Schultz <aschultz@redhat.com>

manifests/params.pp

@@ -4,7 +4,7 @@
 #
 class magnum::params {
   include ::openstacklib::defaults
-
+  $group = 'magnum'
   case $::osfamily {
     'RedHat': {
       # package names

manifests/policy.pp

@@ -29,11 +29,14 @@ class magnum::policy (
 ) {
 
   include ::magnum::deps
+  include ::magnum::params
 
   validate_hash($policies)
 
   Openstacklib::Policy::Base {
     file_path  => $policy_path,
+    file_user  => 'root',
+    file_group => $::magnum::params::group,
   }
 
   create_resources('openstacklib::policy::base', $policies)

spec/classes/magnum_policy_spec.rb

@@ -18,7 +18,9 @@ describe 'magnum::policy' do
     it 'set up the policies' do
       is_expected.to contain_openstacklib__policy__base('context_is_admin').with({
         :key        => 'context_is_admin',
-        :value => 'foo:bar'
+        :value      => 'foo:bar',
+        :file_user  => 'root',
+        :file_group => 'magnum',
       })
       is_expected.to contain_oslo__policy('magnum_config').with(
         :policy_file => '/etc/magnum/policy.json',
@@ -34,7 +36,7 @@ describe 'magnum::policy' do
         facts.merge!(OSDefaults.get_facts())
       end
 
-      it_behaves_like 'magnum policies'
+      it_configures 'magnum policies'
     end
   end
 end