Update docker nodes

Update to the latest built image.

Change-Id: If5b6f88f98072332b83f4764d414d7a5bb6a1ec0
Issue-ID: CIMAN-33
Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
diff --git a/jenkins-config/clouds/openstack/cattle/queue-docker-4c-4g.cfg b/jenkins-config/clouds/openstack/cattle/queue-docker-4c-4g.cfg
index c98d053..22bc7c4 100644
--- a/jenkins-config/clouds/openstack/cattle/queue-docker-4c-4g.cfg
+++ b/jenkins-config/clouds/openstack/cattle/queue-docker-4c-4g.cfg
@@ -1,4 +1,4 @@
-IMAGE_NAME=ZZCI - Ubuntu 16.04 - docker - x86_64 - 20180824-193210.563
+IMAGE_NAME=ZZCI - Ubuntu 16.04 - docker - x86_64 - 20180903-000118.904
 LABELS=queue-docker-4c-4g
 HARDWARE_ID=v2-highcpu-4
 INSTANCE_CAP=1