Allow compute manager prep_resize to accept kwargs

Fixes issues when trying to resize instances. Fixes LP bug #919642.

Change-Id: I411d29404902c377088750e1ae4560b8a419d4f2

nova/compute/manager.py

@@ -1115,7 +1115,7 @@ def finish_revert_resize(self, context, instance_uuid, migration_id):
     @exception.wrap_exception(notifier=notifier, publisher_id=publisher_id())
     @checks_instance_lock
     @wrap_instance_fault
-    def prep_resize(self, context, instance_uuid, instance_type_id):
+    def prep_resize(self, context, instance_uuid, instance_type_id, **kwargs):
         """Initiates the process of moving a running instance to another host.
 
         Possibly changes the RAM and disk size in the process.

nova/tests/test_compute.py

@@ -949,7 +949,8 @@ def fake(*args, **kwargs):
         self.stubs.Set(self.compute.network_api, 'get_instance_nw_info', fake)
         context = self.context.elevated()
         instance = self._create_fake_instance()
-        self.compute.prep_resize(context, instance['uuid'], 1)
+        self.compute.prep_resize(context, instance['uuid'], 1,
+                                 filter_properties={})
         migration_ref = db.migration_get_by_instance_and_status(context,
                 instance['uuid'], 'pre-migrating')
         try:
@@ -975,7 +976,8 @@ def fake(*args, **kwargs):
         self.stubs.Set(self.compute.network_api, 'get_instance_nw_info', fake)
         context = self.context.elevated()
         instance = self._create_fake_instance()
-        self.compute.prep_resize(context, instance['uuid'], 1)
+        self.compute.prep_resize(context, instance['uuid'], 1,
+                                 filter_properties={})
         migration_ref = db.migration_get_by_instance_and_status(context,
                 instance['uuid'], 'pre-migrating')
 
@@ -997,7 +999,8 @@ def test_resize_instance_notification(self):
         test_notifier.NOTIFICATIONS = []
 
         db.instance_update(self.context, instance_uuid, {'host': 'foo'})
-        self.compute.prep_resize(context, instance_uuid, 1)
+        self.compute.prep_resize(context, instance_uuid, 1,
+                                 filter_properties={})
         db.migration_get_by_instance_and_status(context,
                                                 instance_uuid,
                                                 'pre-migrating')
@@ -1050,7 +1053,8 @@ def throw_up(*args, **kwargs):
 
         self.compute.run_instance(self.context, instance_uuid)
         db.instance_update(self.context, instance_uuid, {'host': 'foo'})
-        self.compute.prep_resize(context, instance_uuid, 1)
+        self.compute.prep_resize(context, instance_uuid, 1,
+                                 filter_properties={})
         migration_ref = db.migration_get_by_instance_and_status(context,
                 instance_uuid, 'pre-migrating')
 
@@ -1071,7 +1075,8 @@ def test_resize_instance(self):
         self.compute.run_instance(self.context, instance_uuid)
         db.instance_update(self.context, instance_uuid,
                            {'host': 'foo'})
-        self.compute.prep_resize(context, instance_uuid, 1)
+        self.compute.prep_resize(context, instance_uuid, 1,
+                                 filter_properties={})
         migration_ref = db.migration_get_by_instance_and_status(context,
                 instance_uuid, 'pre-migrating')
         self.compute.resize_instance(context, instance_uuid,
@@ -1103,7 +1108,8 @@ def fake(*args, **kwargs):
 
         new_instance_type_ref = db.instance_type_get_by_flavor_id(context, 3)
         self.compute.prep_resize(context, inst_ref['uuid'],
-                                 new_instance_type_ref['id'])
+                                 new_instance_type_ref['id'],
+                                 filter_properties={})
 
         migration_ref = db.migration_get_by_instance_and_status(context,
                 inst_ref['uuid'], 'pre-migrating')
@@ -1160,7 +1166,8 @@ def raise_migration_failure(*args):
 
         self.compute.run_instance(self.context, inst_ref['uuid'])
         db.instance_update(self.context, inst_ref['uuid'], {'host': 'foo'})
-        self.compute.prep_resize(context, inst_ref['uuid'], 1)
+        self.compute.prep_resize(context, inst_ref['uuid'], 1,
+                                 filter_properties={})
         migration_ref = db.migration_get_by_instance_and_status(context,
                 inst_ref['uuid'], 'pre-migrating')
         self.assertRaises(Exception, self.compute.resize_instance,