Reclass fixes for new lab models

Change-Id: If53b0255df4a5aeb37255e82baed893419e2dd6b
diff --git a/classes/cluster/sl_k8s_contrail/stacklight/server.yml b/classes/cluster/sl_k8s_contrail/stacklight/server.yml
index 9f836b3..be7150d 100644
--- a/classes/cluster/sl_k8s_contrail/stacklight/server.yml
+++ b/classes/cluster/sl_k8s_contrail/stacklight/server.yml
@@ -45,7 +45,7 @@
     keepalived_prometheus_vip_password: password
     keepalived_prometheus_vip_interface: ens4
     # Galera
-    openstack_version: newton
+    openstack_version: ocata
     # Grafana
     grafana_database_type: mysql
     grafana_database_host: ${_param:cluster_vip_address}