CORD-706: Bug fixes involving vSG synchronizer

Change-Id: I81bd4ea828c9598bf94c32cad7876635ff97e74f
diff --git a/xos/synchronizer/steps/sync_vcpetenant_vtn.yaml b/xos/synchronizer/steps/sync_vcpetenant_vtn.yaml
index 7e32bd0..b604741 100644
--- a/xos/synchronizer/steps/sync_vcpetenant_vtn.yaml
+++ b/xos/synchronizer/steps/sync_vcpetenant_vtn.yaml
@@ -2,8 +2,8 @@
 - hosts: {{ instance_name }}
   #gather_facts: False
   connection: ssh
-  user: ubuntu
-  sudo: yes
+  become_user: ubuntu
+
   vars:
       container_name: {{ container_name }}
       cdn_enable: {{ cdn_enable }}