heat-keystone-setup-domain should be idempotent

[Zane Bitter]

Running heat-keystone-setup-domain twice causes errors. It should handle the case where some of the things it is trying to add already exist.

[root@rhos6-storage-1 ~(keystone_admin)]# heat-keystone-setup-domain --insecure --stack-domain-admin heat_admin --stack-domain-admin-password rh0s6 --stack-user-domain-name heat
WARNING (heat-keystone-setup-domain:107) Domain heat already exists
WARNING (heat-keystone-setup-domain:131) User heat_admin already exists
Traceback (most recent call last):
  File "/usr/bin/heat-keystone-setup-domain", line 148, in <module>
    main()
  File "/usr/bin/heat-keystone-setup-domain", line 132, in main
    domain_admin = c.users.list(name=HEAT_DOMAIN_ADMIN)[0]
  File "/usr/lib/python2.7/site-packages/keystoneclient/utils.py", line 318, in inner
    return func(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/keystoneclient/v3/users.py", line 107, in list
    **kwargs)
  File "/usr/lib/python2.7/site-packages/keystoneclient/base.py", line 71, in func
    return f(*args, **new_kwargs)
  File "/usr/lib/python2.7/site-packages/keystoneclient/base.py", line 352, in list
    self.collection_key)
  File "/usr/lib/python2.7/site-packages/keystoneclient/base.py", line 112, in _list
    resp, body = self.client.get(url, **kwargs)
  File "/usr/lib/python2.7/site-packages/keystoneclient/httpclient.py", line 629, in get
    return self._cs_request(url, 'GET', **kwargs)
  File "/usr/lib/python2.7/site-packages/keystoneclient/httpclient.py", line 621, in _cs_request
    return self.request(url, method, **kwargs)
  File "/usr/lib/python2.7/site-packages/keystoneclient/httpclient.py", line 596, in request
    resp = super(HTTPClient, self).request(url, method, **kwargs)
  File "/usr/lib/python2.7/site-packages/keystoneclient/baseclient.py", line 21, in request
    return self.session.request(url, method, **kwargs)
  File "/usr/lib/python2.7/site-packages/keystoneclient/utils.py", line 318, in inner
    return func(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/keystoneclient/session.py", line 346, in request
    raise exceptions.from_response(resp, method, url)
keystoneclient.openstack.common.apiclient.exceptions.Unauthorized: The request you have made requires authentication. (HTTP 401)

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/167199

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/167199
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=501ae172d05c58654bc0c988bc0277a866c235d9
Submitter: Jenkins
Branch: master

commit 501ae172d05c58654bc0c988bc0277a866c235d9
Author: Michal Rostecki <email address hidden>
Date: Tue Mar 24 12:26:11 2015 +0000

    Using OS_TENANT_NAME in heat-keystone-setup-domain

    Tenant name was not provided in Keystone client, so it was not
    authenticated properly and raised Unauthorized exception.

    Change-Id: I0b86ffa3eeff4a9631e36f56f4e111bb5eadf8b6
    Closes-Bug: #1435415