Description of problem:
=======================
I installed nova-cert service as a standalone node (Via packstack).
It fails to start with a missing import:

 ImportError: No module named cinderclient

Version-Release number of selected component (if applicable):
=============================================================
puddle: 2013-10-15.1

openstack-nova-common-2013.2-0.25.rc1.el6ost.noarch
openstack-nova-cert-2013.2-0.25.rc1.el6ost.noarch

How reproducible:
=================
Always

Steps to Reproduce:
===================
1. Install OpenStack via packstack, Make sure that the node you configure to run nova-cert service is only used with CONFIG_NOVA_CERT_HOST.

2. Via CLI, check nova-cert service status:
   # service openstack-nova-cert status

3. Check nova-cert log

Actual results:
===============
nova-cert status:
openstack-nova-cert dead but pid file exists

nova-cert log:

2013-10-20 16:37:56.590 7430 CRITICAL nova [-] No module named cinderclient

Expected results:
=================
nova-cert should be up and running post installation.

Additional Info:
================
To work around the issue:
1. install python-cinderclient
   # yum install python-cinderclient

2. and restarted the nova-cert service.
   # service openstack-nova-cert restart