diff --git a/classes/cluster/virtual-mcp11-k8s-contrail/infra/config.yml b/classes/cluster/virtual-mcp11-k8s-contrail/infra/config.yml
index 4077b40..4fd9100 100644
--- a/classes/cluster/virtual-mcp11-k8s-contrail/infra/config.yml
+++ b/classes/cluster/virtual-mcp11-k8s-contrail/infra/config.yml
@@ -53,6 +53,7 @@
           name: ${_param:stacklight_node01_hostname}
           domain: ${_param:cluster_domain}
           classes:
+          - service.galera.master.cluster
           - system.docker.swarm.master
           - cluster.${_param:cluster_name}.stacklight.client
           - cluster.${_param:cluster_name}.stacklight.server
@@ -61,10 +62,12 @@
             linux_system_codename: xenial
             single_address: ${_param:stacklight_node01_address}
             keepalived_vip_priority: 100
+            mysql_cluster_role: master
         stacklight_node02:
           name: ${_param:stacklight_node02_hostname}
           domain: ${_param:cluster_domain}
           classes:
+          - service.galera.slave.cluster
           - system.docker.swarm.manager
           - cluster.${_param:cluster_name}.stacklight.server
           params:
@@ -72,10 +75,12 @@
             linux_system_codename: xenial
             single_address: ${_param:stacklight_node02_address}
             keepalived_vip_priority: 101
+            mysql_cluster_role: slave
         stacklight_node03:
           name: ${_param:stacklight_node03_hostname}
           domain: ${_param:cluster_domain}
           classes:
+          - service.galera.slave.cluster
           - system.docker.swarm.manager
           - cluster.${_param:cluster_name}.stacklight.server
           params:
@@ -83,6 +88,7 @@
             linux_system_codename: xenial
             single_address: ${_param:stacklight_node03_address}
             keepalived_vip_priority: 102
+            mysql_cluster_role: slave
         opencontrail_control_node01:
           params:
             rabbitmq_cluster_role: master