Upgrade Centos redis image

Update Centos redis image to a new version.

Change-Id: I7406deecfc3baf75bb7ec01f98d80d899c1ea9ad
Issue-ID: CIMAN-177
Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
diff --git a/jenkins-config/clouds/openstack/cattle/centos7-redis-4c-4g.cfg b/jenkins-config/clouds/openstack/cattle/centos7-redis-4c-4g.cfg
index e034fca..4c0766c 100644
--- a/jenkins-config/clouds/openstack/cattle/centos7-redis-4c-4g.cfg
+++ b/jenkins-config/clouds/openstack/cattle/centos7-redis-4c-4g.cfg
@@ -1,3 +1,3 @@
-IMAGE_NAME=ZZCI - CentOS 7 - redis - 20171102-0130
+IMAGE_NAME=Ubuntu 16.04 - redis - 20180101-1003
 LABELS=centos7-redis-4c-4g
 HARDWARE_ID=v2-highcpu-4