The 'service' attribute doesn't exists, which can cause horizon to throw an AttributeError exception.
Logged as upstream bug 1579982 https://bugs.launchpad.net/horizon/+bug/1579982 and this patch
should be removed when the upstream bug is fixed and integrated in our version of python-cinderclient.

--- python-cinderclient-1.6.0/cinderclient/v2/services.py.old	2016-09-01 11:21:55.402483826 -0700
+++ python-cinderclient-1.6.0/cinderclient/v2/services.py	2016-09-01 11:21:42.665135394 -0700
@@ -22,7 +22,7 @@
 class Service(base.Resource):
 
     def __repr__(self):
-        return "<Service: %s>" % self.service
+        return "<Service: %s>" % self._info
 
 
 class ServiceManager(base.ManagerWithFind):