CORD-1033 Build and publish service synchronizers on corddev

Change-Id: I60f9169d61721a2472b7d8fdc433f915d57a0873
diff --git a/group_vars/all b/group_vars/all
index e4d2f61..3951042 100644
--- a/group_vars/all
+++ b/group_vars/all
@@ -73,3 +73,7 @@
 enabled_gui_extensions:
   - name: sample
     path: orchestration/xos-sample-gui-extension
+
+frontend_only: False
+
+xos_services: []