Add proxy for Grafana service

Change-Id: I0a3d5d73cdd7e6e10c866b78993b8ce171e2e4ed
diff --git a/classes/cluster/virtual-mcp11-k8s-calico/stacklight/server.yml b/classes/cluster/virtual-mcp11-k8s-calico/stacklight/server.yml
index 4e48477..d12dfa1 100644
--- a/classes/cluster/virtual-mcp11-k8s-calico/stacklight/server.yml
+++ b/classes/cluster/virtual-mcp11-k8s-calico/stacklight/server.yml
@@ -26,7 +26,7 @@
 - cluster.virtual-mcp11-k8s-calico.infra
 parameters:
   _param:
-    cluster_vip_address: ${_param:stacklight_address}
+    cluster_vip_address: ${_param:stacklight_monitor_address}
     cluster_public_host: mon
     docker_image_alertmanager: alertmanager:latest
     docker_image_pushgateway: pushgateway:latest