add support for config generation

Change-Id: I61707ddb10bb64bd6ccbe10cd5e52c623ff01664
diff --git a/metadata/service/control/control.yml b/metadata/service/control/control.yml
index dfc7c0f..6ab199c 100644
--- a/metadata/service/control/control.yml
+++ b/metadata/service/control/control.yml
@@ -66,6 +66,7 @@
     control:
       version: ${_param:opencontrail_version}
       enabled: true
+      id: ${_param:opencontrail_database_id}
       bind:
         address: ${_param:cluster_local_address}
       discovery: