add overwrite class

Change-Id: Ib5aa8123eb4dbc5ca637773ba7debaa151d9c365
diff --git a/classes/cluster/virtual-mcp11-k8s-contrail/infra/init.yml b/classes/cluster/virtual-mcp11-k8s-contrail/infra/init.yml
index 6992cb9..580f728 100644
--- a/classes/cluster/virtual-mcp11-k8s-contrail/infra/init.yml
+++ b/classes/cluster/virtual-mcp11-k8s-contrail/infra/init.yml
@@ -6,6 +6,7 @@
 - system.openssh.server.team.mcp_qa
 - cluster.virtual-mcp11-k8s-contrail.kubernetes
 - cluster.virtual-mcp11-k8s-contrail.opencontrail
+- cluster.overwrite
 parameters:
   _param: