Fix operation on clouds with availability-zones

In a cloud with AZs, you can get multiple entries back from the service
catalog - one for each AZ and then one that is AZ agnostic that's tied
to the region. If the region_name is plumbed all the way through, this
works as intended.

Change-Id: I3b365ea306e8111fc80830672ae8080a5d1dc8e0

openstackclient/common/clientmanager.py

@@ -110,13 +110,13 @@ class ClientManager(object):
 
         return
 
-    def get_endpoint_for_service_type(self, service_type):
+    def get_endpoint_for_service_type(self, service_type, region_name=None):
         """Return the endpoint URL for the service type."""
         # See if we are using password flow auth, i.e. we have a
         # service catalog to select endpoints from
         if self._service_catalog:
             endpoint = self._service_catalog.url_for(
-                service_type=service_type)
+                service_type=service_type, region_name=region_name)
         else:
             # Hope we were given the correct URL.
             endpoint = self._auth_url or self._url

openstackclient/compute/client.py

@@ -68,7 +68,7 @@ def make_client(instance):
     else:
         # password flow
         client.client.management_url = instance.get_endpoint_for_service_type(
-            API_NAME)
+            API_NAME, region_name=instance._region_name)
         client.client.service_catalog = instance._service_catalog
     client.client.auth_token = instance._token
     return client

openstackclient/network/client.py

@@ -35,7 +35,8 @@ def make_client(instance):
     LOG.debug('Instantiating network client: %s', network_client)
 
     if not instance._url:
-        instance._url = instance.get_endpoint_for_service_type("network")
+        instance._url = instance.get_endpoint_for_service_type(
+            "network", region_name=instance._region_name)
     return network_client(
         username=instance._username,
         tenant_name=instance._project_name,

openstackclient/volume/client.py

@@ -68,7 +68,7 @@ def make_client(instance):
     else:
         # password flow
         client.client.management_url = instance.get_endpoint_for_service_type(
-            API_NAME)
+            API_NAME, region_name=instance._region_name)
         client.client.service_catalog = instance._service_catalog
     client.client.auth_token = instance._token