vim test failing due to keystone auth_url

[dharmendra]

vim test failing due to keystone auth_url

    Traceback (most recent call last):
      File "tacker/tests/functional/base.py", line 51, in setUpClass
        cls.h_client = cls.heatclient()
      File "tacker/tests/functional/base.py", line 103, in heatclient
        return clients.OpenstackClients(auth_attr=data).heat
      File "tacker/tests/functional/clients.py", line 51, in heat
        self.heat_client = self._heat_client()
      File "tacker/tests/functional/clients.py", line 34, in _heat_client
        service_type='orchestration', region_name=self.region_name)
      File "/opt/stack/tacker/.tox/functional/local/lib/python2.7/site-packages/keystoneauth1/session.py", line 856, in get_endpoint
        return auth.get_endpoint(self, **kwargs)
      File "/opt/stack/tacker/.tox/functional/local/lib/python2.7/site-packages/keystoneauth1/identity/base.py", line 215, in get_endpoint
        service_catalog = self.get_access(session).service_catalog
      File "/opt/stack/tacker/.tox/functional/local/lib/python2.7/site-packages/keystoneauth1/identity/base.py", line 136, in get_access
        self.auth_ref = self.get_auth_ref(session)
      File "/opt/stack/tacker/.tox/functional/local/lib/python2.7/site-packages/keystoneauth1/identity/v3/base.py", line 167, in get_auth_ref
        authenticated=False, log=False, **rkwargs)
      File "/opt/stack/tacker/.tox/functional/local/lib/python2.7/site-packages/keystoneauth1/session.py", line 766, in post
        return self.request(url, 'POST', **kwargs)
      File "/opt/stack/tacker/.tox/functional/local/lib/python2.7/site-packages/positional/__init__.py", line 101, in inner
        return wrapped(*args, **kwargs)
      File "/opt/stack/tacker/.tox/functional/local/lib/python2.7/site-packages/keystoneauth1/session.py", line 616, in request
        resp = send(**kwargs)
      File "/opt/stack/tacker/.tox/functional/local/lib/python2.7/site-packages/keystoneauth1/session.py", line 690, in _send_request
        raise exceptions.ConnectFailure(msg)
    keystoneauth1.exceptions.connection.ConnectFailure: Unable to establish connection to http://127.0.0.1:5000/v3/auth/tokens: HTTPConnectionPool(host='127.0.0.1', port=5000): Max retries exceeded with url: /v3/auth/tokens (Caused by NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x7fc6262b4690>: Failed to establish a new connection: [Errno 111] Connection refused',))

[yong sheng gong (gongysh)]

I think we have updated auth_url of keystone into http://ip/identity in CI test
https://review.openstack.org/#/c/457852/