Expose parameter to customize [oslo_messaging_notifications] retry

The parameter has been managed by puppet-oslo, but its value could not
be set via this module.

Change-Id: I79022b40efdbc423a4a85f15149b6a05f348fe1b

manifests/init.pp

@@ -246,6 +246,11 @@
 #   (optional) AMQP topic used for OpenStack notifications
 #   Defaults to facts['os_service_default']
 #
+# [*notification_retry*]
+#   (optional) The maximum number of attempts to re-sent a notification
+#   message, which failed to be delivered due to a recoverable error.
+#   Defaults to $facts['os_service_default'].
+#
 # [*notification_format*]
 #   (optional) Format used for OpenStack notifications
 #   Defaults to facts['os_service_default']
@@ -379,6 +384,7 @@ class nova(
   $notification_transport_url         = $facts['os_service_default'],
   $notification_driver                = $facts['os_service_default'],
   $notification_topics                = $facts['os_service_default'],
+  $notification_retry                 = $facts['os_service_default'],
   $notification_format                = $facts['os_service_default'],
   $notify_on_state_change             = $facts['os_service_default'],
   $ovsdb_connection                   = $facts['os_service_default'],
@@ -575,6 +581,7 @@ but should be one of: ssh-rsa, ssh-dsa, ssh-ecdsa, ssh-ed25519.")
     transport_url => $notification_transport_url,
     driver        => $notification_driver,
     topics        => $notification_topics,
+    retry         => $notification_retry,
   }
 
   nova_config {

releasenotes/notes/notification-retry-a81525af6695b76b.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    The new ``nova::notification_retry`` parameter has been added.

spec/classes/nova_init_spec.rb

@@ -63,6 +63,7 @@ describe 'nova' do
           :transport_url => '<SERVICE DEFAULT>',
           :driver        => '<SERVICE DEFAULT>',
           :topics        => '<SERVICE DEFAULT>',
+          :retry         => '<SERVICE DEFAULT>',
         )
       end
 
@@ -134,6 +135,7 @@ describe 'nova' do
           :notification_transport_url         => 'rabbit://rabbit_user:password@localhost:5673',
           :notification_driver                => 'ceilometer.compute.nova_notifier',
           :notification_topics                => 'openstack',
+          :notification_retry                 => 10,
           :notification_format                => 'unversioned',
           :report_interval                    => '10',
           :periodic_fuzzy_delay               => '61',
@@ -204,6 +206,7 @@ describe 'nova' do
           :transport_url => 'rabbit://rabbit_user:password@localhost:5673',
           :driver        => 'ceilometer.compute.nova_notifier',
           :topics        => 'openstack',
+          :retry         => 10,
         )
       end
 
@@ -242,7 +245,12 @@ describe 'nova' do
       end
 
       context 'with multiple notification_driver' do
-        before { params.merge!( :notification_driver => ['ceilometer.compute.nova_notifier', 'nova.openstack.common.notifier.rpc_notifier']) }
+        before do
+          params.merge!( :notification_driver => [
+            'ceilometer.compute.nova_notifier',
+            'nova.openstack.common.notifier.rpc_notifier'
+          ])
+        end
 
         it { is_expected.to contain_oslo__messaging__notifications('nova_config').with(
           :driver => ['ceilometer.compute.nova_notifier', 'nova.openstack.common.notifier.rpc_notifier'],