Added documentation about needed flags

1 files changed, 6 insertions, 1 deletions

diff --git a/nova/service.py b/nova/service.py
index 460f36f7a..af20db01c 100644
--- a/nova/service.py
+++ b/nova/service.py
@@ -221,7 +221,12 @@ class Service(object):
 
 
 class WsgiService(object):
-    """Base class for WSGI based services."""
+    """Base class for WSGI based services.
+
+    For each api you define, you must also define these flags:
+    :<api>_listen:            The address on which to listen
+    :<api>_listen_port:       The port on which to listen
+    """
 
     def __init__(self, conf, apis):
         self.conf = conf