Refactor mongodb classes

Change-Id: Iaadd59e59f5a73be5eb70930d88bdd0769816b2e
Related-PROD: PROD-19892
diff --git a/mongodb/server/cluster.yml b/mongodb/server/cluster.yml
index 02294c4..54dd1bb 100644
--- a/mongodb/server/cluster.yml
+++ b/mongodb/server/cluster.yml
@@ -2,13 +2,13 @@
 - service.mongodb.server.cluster
 parameters:
   _param:
-    openstack_telemetry_node01_hostname: mdb01
-    openstack_telemetry_node02_hostname: mdb02
-    openstack_telemetry_node03_hostname: mdb03
-    mongodb_server_replica_set: mongodb
-    mongodb_master: ${_param:openstack_telemetry_node01_hostname}
-    mongodb_server_members:
-    - host: ${_param:openstack_telemetry_node01_hostname}
-      priority: 2
-    - host: ${_param:openstack_telemetry_node02_hostname}
-    - host: ${_param:openstack_telemetry_node03_hostname}
+    mongodb_replica_set: stacklight
+  mongodb:
+    server:
+      replica_set: ${_param:mongodb_replica_set}
+      members:
+      - host: ${_param:cluster_node01_address}
+        priority: 2
+      - host: ${_param:cluster_node02_address}
+      - host: ${_param:cluster_node03_address}
+      master: ${_param:cluster_node01_hostname}