Enable Grafana GlusterFS volume

Change-Id: Ia2da2d1aa1b0e250b6070aa108d141b14804642f
diff --git a/classes/cluster/virtual-mcp11-k8s-calico-dyn/stacklight/server.yml b/classes/cluster/virtual-mcp11-k8s-calico-dyn/stacklight/server.yml
index 6f944b7..be5d650 100644
--- a/classes/cluster/virtual-mcp11-k8s-calico-dyn/stacklight/server.yml
+++ b/classes/cluster/virtual-mcp11-k8s-calico-dyn/stacklight/server.yml
@@ -11,8 +11,10 @@
 - service.haproxy.proxy.single
 - system.glusterfs.client.cluster
 - system.glusterfs.client.volume.prometheus
+- system.glusterfs.client.volume.grafana
 - system.glusterfs.server.cluster
 - system.glusterfs.server.volume.prometheus
+- system.glusterfs.server.volume.grafana
 - system.galera.server.cluster
 - system.galera.server.database.grafana
 - system.salt.minion.cert.prometheus_server
@@ -35,6 +37,7 @@
     docker_image_remote_agent: mirantis/telegraf:latest
     docker_image_remote_storage_adapter: mirantis/remote_storage_adapter:latest
     docker_image_grafana: grafana/grafana:latest
+    docker_grafana_replicas: 3
     grafana_admin_password: admin
     keepalived_prometheus_vip_address: ${_param:cluster_vip_address}
     keepalived_prometheus_vip_password: password