diff --git a/tempest/config.py b/tempest/config.py
index 3511d5c..8fa3ee5 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -1,6 +1,7 @@
 import ConfigParser
 import logging
 import os
+from tempest.common.utils import data_utils
 
 LOG = logging.getLogger(__name__)
 
@@ -38,6 +39,15 @@
         """Path of API request"""
         return self.get("path", "/")
 
+    @property
+    def auth_url(self):
+        """The Auth URL (derived)"""
+        auth_url = data_utils.build_url(self.host,
+                                        self.port,
+                                        self.apiVer,
+                                        self.path)
+        return auth_url
+
     def params(self):
         """Parameters to be passed with the API request"""
         return self.get("params", "")
@@ -111,7 +121,7 @@
 
     @property
     def create_image_enabled(self):
-        """ Does the test environment support resizing """
+        """ Does the test environment support snapshots """
         return self.get("create_image_enabled", 'false') != 'false'
 
     @property
diff --git a/tempest/openstack.py b/tempest/openstack.py
index dcabd8d..b1e22ad 100644
--- a/tempest/openstack.py
+++ b/tempest/openstack.py
@@ -28,31 +28,27 @@
         config_file = os.environ.get('TEMPEST_CONFIG',
             self.DEFAULT_CONFIG_FILE)
         self.config = tempest.config.TempestConfig(config_dir, config_file)
-        self.auth_url = data_utils.build_url(self.config.nova.host,
-                                        self.config.nova.port,
-                                        self.config.nova.apiVer,
-                                        self.config.nova.path)
 
         if self.config.env.authentication == 'keystone_v2':
             self.servers_client = ServersClient(self.config,
                                                 self.config.nova.username,
                                                 self.config.nova.api_key,
-                                                self.auth_url,
+                                                self.config.nova.auth_url,
                                                 self.config.nova.tenant_name)
             self.flavors_client = FlavorsClient(self.config,
                                                 self.config.nova.username,
                                                 self.config.nova.api_key,
-                                                self.auth_url,
+                                                self.config.nova.auth_url,
                                                 self.config.nova.tenant_name)
             self.images_client = ImagesClient(self.config,
                                               self.config.nova.username,
                                               self.config.nova.api_key,
-                                              self.auth_url,
+                                              self.config.nova.auth_url,
                                               self.config.nova.tenant_name)
             self.limits_client = LimitsClient(self.config,
                                               self.config.nova.username,
                                               self.config.nova.api_key,
-                                              self.auth_url,
+                                              self.config.nova.auth_url,
                                               self.config.nova.tenant_name)
 
         else:
@@ -60,18 +56,16 @@
             self.servers_client = ServersClient(self.config,
                                                 self.config.nova.username,
                                                 self.config.nova.api_key,
-                                                self.auth_url)
+                                                self.config.nova.auth_url)
             self.flavors_client = FlavorsClient(self.config,
                                                 self.config.nova.username,
                                                 self.config.nova.api_key,
-                                                self.auth_url)
+                                                self.config.nova.auth_url)
             self.images_client = ImagesClient(self.config,
                                               self.config.nova.username,
-                                              self.config.nova.auth_url,
                                               self.config.nova.api_key,
-                                              self.auth_url)
+                                              self.config.nova.auth_url)
             self.limits_client = LimitsClient(self.config,
                                               self.config.nova.username,
-                                              self.config.nova.auth_url,
                                               self.config.nova.api_key,
-                                              self.auth_url)
+                                              self.config.nova.auth_url)