image: ensure notifier is really disable

On RHEL, notifier is at "qpid" but we need to disable it for now.
See https://github.com/enovance/puppet-openstack-cloud/issues/160

Signed-off-by: Emilien Macchi <emilien.macchi@enovance.com>

manifests/image.pp

@@ -145,6 +145,10 @@ class cloud::image(
   #   rabbit_userid   => 'glance',
   #   rabbit_host     => $rabbit_host,
   # }
+  glance_api_config {
+    # TODO(EmilienM) Will be deprecated in Icehouse for notification_driver.
+    'DEFAULT/notifier_strategy': value => 'noop';
+  }
 
   class { 'glance::backend::rbd':
     rbd_store_user => $glance_rbd_user,

spec/classes/cloud_image_spec.rb

@@ -92,6 +92,7 @@ describe 'cloud::image' do
     #       :rabbit_host     => '10.0.0.1'
     #     )
     # end
+    it { should contain_glance_api_config('DEFAULT/notifier_strategy').with_value('noop') }
 
     it 'configure glance rbd backend' do
       should contain_class('glance::backend::rbd').with(