Use Galera for storing Grafana items

Change-Id: I37a05d86395f8c825c617fff7474cedc60ce6768
diff --git a/classes/cluster/virtual-mcp11-k8s-contrail/stacklight/init.yml b/classes/cluster/virtual-mcp11-k8s-contrail/stacklight/init.yml
index fcba2a5..3685807 100644
--- a/classes/cluster/virtual-mcp11-k8s-contrail/stacklight/init.yml
+++ b/classes/cluster/virtual-mcp11-k8s-contrail/stacklight/init.yml
@@ -11,6 +11,15 @@
     glusterfs_service_host: ${_param:stacklight_monitor_address}
     # Prometheus
     prometheus_control_address: ${_param:stacklight_monitor_address}
+
+    mysql_admin_user: root
+    mysql_admin_password: workshop
+
+    mysql_grafana_password: password
+    cluster_local_address: ${_param:single_address}
+    galera_server_cluster_name: monitoring_cluster
+    galera_server_maintenance_password: workshop
+    galera_server_admin_password: workshop
   linux:
     network:
       host: