When trying to run ceph-rest-api on a general ceph cluster named "ceph" it works without issue from cli:

```
/bin/ceph-rest-api --cluster ceph --id admin
  * Running on http://0.0.0.0:5000/

```

But, when I try to run it on a test cluster named "test" it errors out:

```
/bin/ceph-rest-api --cluster test --id test
Traceback (most recent call last):
  File "/bin/ceph-rest-api", line 59, in <module>
    rest,
  File "/usr/lib/python2.7/site-packages/ceph_rest_api.py", line 495, in generate_app
    addr, port = api_setup(app, conf, cluster, clientname, clientid, args)
  File "/usr/lib/python2.7/site-packages/ceph_rest_api.py", line 106, in api_setup
    app.ceph_cluster.connect()
  File "rados.pyx", line 785, in rados.Rados.connect (rados.c:8969)
rados.ObjectNotFound: error connecting to the cluster

```

I've also tried using a variation and got a different error:

```
/bin/ceph-rest-api --cluster test --name test
Traceback (most recent call last):
  File "/bin/ceph-rest-api", line 59, in <module>
    rest,
  File "/usr/lib/python2.7/site-packages/ceph_rest_api.py", line 495, in generate_app
    addr, port = api_setup(app, conf, cluster, clientname, clientid, args)
  File "/usr/lib/python2.7/site-packages/ceph_rest_api.py", line 104, in api_setup
    app.ceph_cluster = rados.Rados(name=clientname, conffile=conf)
  File "rados.pyx", line 525, in rados.Rados.__init__ (rados.c:5719)
  File "rados.pyx", line 425, in rados.requires.wrapper.validate_func (rados.c:4106)
  File "rados.pyx", line 557, in rados.Rados.__setup (rados.c:6237)
rados.Error: rados_initialize failed with error code: -22

```

Any help on what I'm doing wrong would be greatly appreciated.