Merge "Keystone: it enables keystone notificaitons"

keystone/values.yaml

@@ -342,6 +342,8 @@ conf:
     DEFAULT:
       log_config_append: /etc/keystone/logging.conf
       max_token_size: 255
+      #NOTE(rk760n): if you need auth notifications to be sent, uncomment it
+      #notification_opt_out: ""
     token:
       provider: fernet
       # 12 hours
@@ -358,6 +360,8 @@ conf:
     cache:
       enabled: true
       backend: dogpile.cache.memcached
+    oslo_messaging_notifications:
+      driver: messagingv2
   # NOTE(lamt) We can leverage multiple domains with different
   # configurations as outlined in
   # https://docs.openstack.org/keystone/pike/admin/identity-domain-specific-config.html.