replace hardcoded region with param
diff --git a/opencontrail/control/control.yml b/opencontrail/control/control.yml
index 1726029..a3fefc3 100644
--- a/opencontrail/control/control.yml
+++ b/opencontrail/control/control.yml
@@ -41,7 +41,7 @@
       identity:
         engine: keystone
         version: '2.0'
-        region: RegionOne
+        region: ${_param:openstack_region}
         host: ${_param:openstack_control_address}
         port: 35357
         user: admin
@@ -101,4 +101,4 @@
         port: 9042
       network:
         engine: neutron
-        host: ${_param:cluster_vip_address}
\ No newline at end of file
+        host: ${_param:cluster_vip_address}