Set default application for Ceph Luminous openstack_pools

Luminous can assign application types to pools and ceph-ansible
supports this, provided it is passed an appropriate list of maps.
The list of maps is defined in openstack_pools and this change
updates this variable to contain the correct default application
type.

Includes update to environments/disable-telemetry.yaml so that
the GnocchiRbdPool is not created if telemetry is disabled.

Change-Id: I3966a8a1b170202e020684a36ecece78599296b5
Closes-Bug: #1772743

docker/services/ceph-ansible/ceph-base.yaml

@@ -227,6 +227,7 @@ resources:
                         name: <%pool%>
                         pg_num: {get_param: CephPoolDefaultPgNum}
                         rule_name: ""
+                        application: rbd
                       for_each:
                         <%pool%>:
                           list_concat_unique:
@@ -234,9 +235,15 @@ resources:
                               - {get_param: CinderBackupRbdPoolName}
                               - {get_param: NovaRbdPoolName}
                               - {get_param: GlanceRbdPoolName}
-                              - {get_param: GnocchiRbdPoolName}
                             # CinderRbdExtraPools is a list (do not indent further)
                             - {get_param: CinderRbdExtraPools}
+                  - if:
+                    - equals: [{get_param: GnocchiRbdPoolName}, '']
+                    - []
+                    - - name: {get_param: GnocchiRbdPoolName}
+                        pg_num: {get_param: CephPoolDefaultPgNum}
+                        rule_name: ""
+                        application: openstack_gnocchi
                   - {get_param: CephPools}
           openstack_keys: &openstack_keys
           - name:

environments/disable-telemetry.yaml

@@ -18,3 +18,4 @@ resource_registry:
 
 parameter_defaults:
   NotificationDriver: 'noop'
+  GnocchiRbdPoolName: ''