parametrize endpoints

Change-Id: I38469f497ed5ff7552a6f38d1ebefb56c1bbc9fc
diff --git a/tests/pillar/server_single.sls b/tests/pillar/server_single.sls
index e356e9c..1b75393 100644
--- a/tests/pillar/server_single.sls
+++ b/tests/pillar/server_single.sls
@@ -17,6 +17,7 @@
       tenant: service
       user: ceilometer
       password: password
+      endpoint_type: internalURL
     message_queue:
       engine: rabbitmq
       host: 127.0.0.1