Fixes bug 942549

Ensure a more meaninful error is reported when an aggregate is created in a
non-exsistent availability zone.

Change-Id: I15ea6c884bb6f326df1d88019ee0ecf070196d1e

nova/api/openstack/compute/contrib/aggregates.py

@@ -72,7 +72,8 @@ def create(self, req, body):
 
         try:
             aggregate = self.api.create_aggregate(context, name, avail_zone)
-        except exception.AggregateNameExists:
+        except (exception.AggregateNameExists,
+                exception.InvalidAggregateAction):
             LOG.exception(_("Cannot create aggregate with name %(name)s and "
                             "availability zone %(avail_zone)s") % locals())
             raise exc.HTTPConflict

nova/tests/api/openstack/compute/contrib/test_aggregates.py

@@ -87,6 +87,17 @@ def stub_create_aggregate(context, name, availability_zone):
                                      {"name": "test",
                                       "availability_zone": "nova1"}})
 
+    def test_create_with_incorrect_availability_zone(self):
+        def stub_create_aggregate(context, name, availability_zone):
+            raise exception.InvalidAggregateAction
+        self.stubs.Set(self.controller.api, "create_aggregate",
+                       stub_create_aggregate)
+
+        self.assertRaises(exc.HTTPConflict, self.controller.create,
+                          self.req, {"aggregate":
+                                     {"name": "test",
+                                      "availability_zone": "nova_bad"}})
+
     def test_create_with_no_aggregate(self):
         self.assertRaises(exc.HTTPBadRequest, self.controller.create,
                           self.req, {"foo":