Fix interpolation collision between openstack/stacklight for cicd

Change-Id: I76265afbcb9085b86f805e08f8f4daee260b8657
diff --git a/classes/cluster/virtual-mcp-ocata-cicd/stacklight/server.yml b/classes/cluster/virtual-mcp-ocata-cicd/stacklight/server.yml
index c5684a1..1270bbb 100644
--- a/classes/cluster/virtual-mcp-ocata-cicd/stacklight/server.yml
+++ b/classes/cluster/virtual-mcp-ocata-cicd/stacklight/server.yml
@@ -53,6 +53,8 @@
     kibana_elasticsearch_host: ${_param:cluster_vip_address}
     # Galera
     openstack_version: newton
+    # Glusterfs
+    glusterfs_service_host: ${_param:stacklight_monitor_address}
     # Grafana
     grafana_database_type: mysql
     grafana_database_host: ${_param:cluster_vip_address}