CORD-706: Fix bug that was causing ExampleService to fail

Change-Id: Id62a2e12769923b22eeb36397456e2982857a310
diff --git a/xos/synchronizer/steps/sync_monitoring_agent.yaml b/xos/synchronizer/steps/sync_monitoring_agent.yaml
index eb92757..48a094d 100644
--- a/xos/synchronizer/steps/sync_monitoring_agent.yaml
+++ b/xos/synchronizer/steps/sync_monitoring_agent.yaml
@@ -2,7 +2,7 @@
 - hosts: {{ instance_name }}
   gather_facts: False
   connection: ssh
-  user: ubuntu
+  become: ubuntu
   vars:
       keystone_tenant_id: {{ keystone_tenant_id }}
       keystone_user_id: {{ keystone_user_id }}