Add parameters to cinder backend configuration

Add configuration parameters cinder_store_user_name,
cinder_store_password, cinder_store_project_name and
cinder_store_auth_address to cinder volume type backend configuration.
This avoids a glance_store bug that prevents glance-api from starting.

Closes-Bug: #2052726
Change-Id: I4b6ca32ed426f77a326711c2457046dbda594e77

hooks/glance_contexts.py

@@ -33,6 +33,7 @@ from charmhelpers.contrib.openstack.context import (
     ApacheSSLContext as SSLContext,
     BindHostContext,
     VolumeAPIContext,
+    IdentityServiceContext,
 )
 
 from charmhelpers.contrib.hahelpers.cluster import (
@@ -367,6 +368,7 @@ class MultiBackendContext(OSContextGenerator):
             # backend cinder_volume_type should be left blank so that glance
             # creates volume in cinder without specifying any volume type.
             if cinder_volume_types:
+                keystone_ctx = IdentityServiceContext()()
                 for volume_type in volume_types:
                     ctxt['enabled_backend_configs'][volume_type] = {
                         'cinder_volume_type': volume_type,
@@ -374,6 +376,17 @@ class MultiBackendContext(OSContextGenerator):
                         'cinder_state_transition_timeout': config(
                             'cinder-state-transition-timeout'),
                     }
+                    if keystone_ctx:
+                        ctxt['enabled_backend_configs'][volume_type].update({
+                            'cinder_store_user_name': keystone_ctx.get(
+                                'admin_user'),
+                            'cinder_store_password': keystone_ctx.get(
+                                'admin_password'),
+                            'cinder_store_project_name': keystone_ctx.get(
+                                'admin_tenant_name'),
+                            'cinder_store_auth_address': keystone_ctx.get(
+                                'keystone_authtoken').get('auth_url'),
+                        })
             else:
                 # default cinder volume type cinder
                 ctxt['enabled_backend_configs']['cinder'] = {

unit_tests/test_glance_contexts.py

@@ -389,7 +389,9 @@ class TestGlanceContexts(CharmTestCase):
                 'default_store_backend': 'cinder',
             })
 
-    def test_multi_backend_with_cinder_volume_types_defined(self):
+    @patch('charmhelpers.contrib.openstack.'
+           'context.IdentityServiceContext.__call__')
+    def test_multi_backend_with_cinder_volume_types_defined(self, keystone):
         # return relation_ids only for cinder but not for swift
         def _relation_ids(*args, **kwargs):
             if args[0] == 'cinder-volume-service':
@@ -399,6 +401,12 @@ class TestGlanceContexts(CharmTestCase):
 
         self.maxDiff = None
         self.relation_ids.side_effect = _relation_ids
+        keystone.return_value = {
+            'admin_user': 'user',
+            'admin_password': 'password',
+            'admin_tenant_name': 'services',
+            'keystone_authtoken': {'auth_url': 'http://10.0.0.1:35357/v3'},
+        }
         self.is_relation_made.return_value = False
         data_dir = '/some/data/dir'
         conf_dict = {
@@ -420,6 +428,11 @@ class TestGlanceContexts(CharmTestCase):
                         'cinder_volume_type': 'volume-type-test',
                         'cinder_http_retries': 3,
                         'cinder_state_transition_timeout': 30,
+                        'cinder_store_user_name': 'user',
+                        'cinder_store_password': 'password',
+                        'cinder_store_project_name': 'services',
+                        'cinder_store_auth_address':
+                            'http://10.0.0.1:35357/v3',
                     }
                 },
                 'enabled_backends': 'local:file, volume-type-test:cinder',