Test: Support for ONOS cluster mode startup with --onos-instances option to cord-test.py setup.
Changes to igmpTest to do a rover join test with support for parallel test runs across multiple containers.

Change-Id: If9c01df4c2ff5f2f6961eef9ff6fa865abb29b53
diff --git a/src/test/utils/OnosFlowCtrl.py b/src/test/utils/OnosFlowCtrl.py
index 295a7ab..5b2da52 100644
--- a/src/test/utils/OnosFlowCtrl.py
+++ b/src/test/utils/OnosFlowCtrl.py
@@ -23,7 +23,7 @@
 class OnosFlowCtrl:
 
     auth = ('karaf', 'karaf')
-    controller = os.getenv('ONOS_CONTROLLER_IP') or 'localhost'
+    controller = OnosCtrl.get_controller()
     cfg_url = 'http://%s:8181/onos/v1/flows/' %(controller)
 
     def __init__( self,