Add Ceph RGW backend testing

Enable multi-backend for the bundles with Ceph deployed.

The extra backend enabled is an object store, that uses the
OpenStack Swift compatible API provided by the Ceph RGW.

Func-Test-Pr: https://github.com/openstack-charmers/zaza-openstack-tests/pull/505
Change-Id: I7125fbd4d188b2da3227ab8288a8aed3a61ef143

tests/bundles/focal-ussuri.yaml

@@ -24,6 +24,7 @@ machines:
   '12':
   '13':
   '14':
+  '15':
 
 applications:
 
@@ -57,6 +58,14 @@ applications:
       - '7'
       - '8'
 
+  ceph-radosgw:
+    charm: cs:~openstack-charmers-next/ceph-radosgw
+    num_units: 1
+    options:
+      source: *openstack-origin
+    to:
+      - '15'
+
   ceph-mon:
     charm: cs:~openstack-charmers-next/ceph-mon
     num_units: 3
@@ -120,3 +129,10 @@ relations:
 
   - - 'ceph-osd:mon'
     - 'ceph-mon:osd'
+
+  - - 'ceph-radosgw:mon'
+    - 'ceph-mon:radosgw'
+  - - 'ceph-radosgw:identity-service'
+    - 'keystone:identity-service'
+  - - 'ceph-radosgw:object-store'
+    - 'glance:object-store'

tests/bundles/focal-victoria.yaml

@@ -24,6 +24,7 @@ machines:
   '12':
   '13':
   '14':
+  '15':
 
 applications:
 
@@ -57,6 +58,14 @@ applications:
       - '7'
       - '8'
 
+  ceph-radosgw:
+    charm: cs:~openstack-charmers-next/ceph-radosgw
+    num_units: 1
+    options:
+      source: *openstack-origin
+    to:
+      - '15'
+
   ceph-mon:
     charm: cs:~openstack-charmers-next/ceph-mon
     num_units: 3
@@ -120,3 +129,10 @@ relations:
 
   - - 'ceph-osd:mon'
     - 'ceph-mon:osd'
+
+  - - 'ceph-radosgw:mon'
+    - 'ceph-mon:radosgw'
+  - - 'ceph-radosgw:identity-service'
+    - 'keystone:identity-service'
+  - - 'ceph-radosgw:object-store'
+    - 'glance:object-store'

tests/bundles/groovy-victoria.yaml

@@ -24,6 +24,7 @@ machines:
   '12':
   '13':
   '14':
+  '15':
 
 applications:
 
@@ -57,6 +58,14 @@ applications:
       - '7'
       - '8'
 
+  ceph-radosgw:
+    charm: cs:~openstack-charmers-next/ceph-radosgw
+    num_units: 1
+    options:
+      source: *openstack-origin
+    to:
+      - '15'
+
   ceph-mon:
     charm: cs:~openstack-charmers-next/ceph-mon
     num_units: 3
@@ -120,3 +129,10 @@ relations:
 
   - - 'ceph-osd:mon'
     - 'ceph-mon:osd'
+
+  - - 'ceph-radosgw:mon'
+    - 'ceph-mon:radosgw'
+  - - 'ceph-radosgw:identity-service'
+    - 'keystone:identity-service'
+  - - 'ceph-radosgw:object-store'
+    - 'glance:object-store'

tests/tests.yaml

@@ -37,6 +37,7 @@ configure:
 tests:
   - ceph:
     - zaza.openstack.charm_tests.glance.tests.GlanceTest
+    - zaza.openstack.charm_tests.glance.tests.GlanceCephRGWBackendTest
     - zaza.openstack.charm_tests.policyd.tests.GlanceTests
     - zaza.openstack.charm_tests.ceph.tests.CheckPoolTypes
     - zaza.openstack.charm_tests.ceph.tests.BlueStoreCompressionCharmOperation