Have glance notifications work like the other projects

Currently glance has a very simplistic ability to configure
notifications which seems different than nova and neutron which
both allow for selecting the topics used. In order to make glance
work like the others just have glance be configured like the other
projects notifications are being configured.

Change-Id: Ia12993e1b86d040c2705e72b32f93b874fe4adc6

ansible/roles/glance/defaults/main.yml

@@ -23,6 +23,14 @@ glance_services:
       - "/etc/localtime:/etc/localtime:ro"
       - "kolla_logs:/var/log/kolla/"
 
+####################
+# Notification
+####################
+glance_notification_topics:
+  - name: notifications
+    enabled: "{{ enable_ceilometer | bool or enable_searchlight | bool }}"
+
+glance_enabled_notification_topics: "{{ glance_notification_topics | selectattr('enabled', 'equalto', true) | list }}"
 
 ####################
 # Ceph

ansible/roles/glance/templates/glance-api.conf.j2

@@ -83,8 +83,9 @@ vmware_insecure = True
 
 [oslo_messaging_notifications]
 transport_url = {{ notify_transport_url }}
-{% if enable_ceilometer | bool or enable_searchlight | bool %}
+{% if glance_enabled_notification_topics %}
 driver = messagingv2
+topics = {{ glance_enabled_notification_topics | map(attribute='name') | join(',') }}
 {% else %}
 driver = noop
 {% endif %}

ansible/roles/glance/templates/glance-registry.conf.j2

@@ -33,8 +33,9 @@ flavor = keystone
 
 [oslo_messaging_notifications]
 transport_url = {{ notify_transport_url }}
-{% if enable_ceilometer | bool or enable_searchlight | bool %}
+{% if glance_enabled_notification_topics %}
 driver = messagingv2
+topics = {{ glance_enabled_notification_topics | map(attribute='name') | join(',') }}
 {% else %}
 driver = noop
 {% endif %}