PROD-35900 Conditional deployment of the empty node

Change-Id: If8dec13efbb862d14f6d8ff0108ee18b9795234e
diff --git a/jobs/templates/2019.2.0-heat-cicd-queens-dvr-sl.yml b/jobs/templates/2019.2.0-heat-cicd-queens-dvr-sl.yml
index 2374cb4..91895e8 100644
--- a/jobs/templates/2019.2.0-heat-cicd-queens-dvr-sl.yml
+++ b/jobs/templates/2019.2.0-heat-cicd-queens-dvr-sl.yml
@@ -65,6 +65,10 @@
         description: ''
         name: ENV_NAME
         trim: 'false'
+    - bool:
+        default: false
+        description: 'Add extra node to heat stack. Node without a role and with salt-minion'
+        name: DEPLOY_EMPTY_NODE
     - string:
         default: ''
         description: |-