Add proxy for Grafana service

Change-Id: I0a3d5d73cdd7e6e10c866b78993b8ce171e2e4ed
diff --git a/classes/cluster/virtual-mcp11-k8s-contrail/stacklight/init.yml b/classes/cluster/virtual-mcp11-k8s-contrail/stacklight/init.yml
index 2027844..fcba2a5 100644
--- a/classes/cluster/virtual-mcp11-k8s-contrail/stacklight/init.yml
+++ b/classes/cluster/virtual-mcp11-k8s-contrail/stacklight/init.yml
@@ -1,6 +1,6 @@
 parameters:
   _param:
-    stacklight_address: 172.16.10.251
+    stacklight_monitor_address: 172.16.10.251
     stacklight_node01_hostname: mon01
     stacklight_node02_hostname: mon02
     stacklight_node03_hostname: mon03
@@ -8,14 +8,14 @@
     stacklight_node02_address: 172.16.10.108
     stacklight_node03_address: 172.16.10.109
     # GlusterFS
-    glusterfs_service_host: ${_param:stacklight_address}
+    glusterfs_service_host: ${_param:stacklight_monitor_address}
     # Prometheus
-    prometheus_control_address: ${_param:stacklight_address}
+    prometheus_control_address: ${_param:stacklight_monitor_address}
   linux:
     network:
       host:
         mon:
-          address: ${_param:stacklight_address}
+          address: ${_param:stacklight_monitor_address}
           names:
           - mon
           - mon.${_param:cluster_domain}