pull the xos-base container from the local registry

Change-Id: I358c0614b53385c4d9725e165a654d4e4a6f8898
diff --git a/vars/cord_defaults.yml b/vars/cord_defaults.yml
index b91f082..3536446 100644
--- a/vars/cord_defaults.yml
+++ b/vars/cord_defaults.yml
@@ -20,7 +20,7 @@
 
 xos_repo_dest: "~/xos"
 
-xos_container_rebuild: True
+xos_container_rebuild: False
 
 apt_cacher_name: apt-cache