PROD-35900 Conditional deployment of the empty node

Change-Id: If8dec13efbb862d14f6d8ff0108ee18b9795234e
diff --git a/tcp_tests/templates/heat-cicd-queens-dvr-sl/underlay.hot b/tcp_tests/templates/heat-cicd-queens-dvr-sl/underlay.hot
index c3e09fa..5775174 100644
--- a/tcp_tests/templates/heat-cicd-queens-dvr-sl/underlay.hot
+++ b/tcp_tests/templates/heat-cicd-queens-dvr-sl/underlay.hot
@@ -7,7 +7,7 @@
 parameters:
   instance_domain:
     type: string
-    default: heat-cicd-queens-dvr-sl.local
+    default: heat-cicd-queens-dvr-sl-test.local
   mcp_version:
     type: string
   env_name:
@@ -39,6 +39,9 @@
   salt_master_control_ip:
     type: string
     default: 10.6.0.15
+  deploy_empty_node:
+    type: boolean
+    default: False
 
   key_pair:
     type: string
@@ -1068,6 +1071,7 @@
   empty_node:
     type: MCP::SingleInstance2Volumes
     depends_on: [cfg01_node]
+    condition: { get_param: deploy_empty_node }
     properties:
       env_name: { get_param: env_name }
       mcp_version: { get_param: mcp_version }