Add UnitedStack

With Keystone v3 even!

Change-Id: If9445d99ccfa5f15ca3760bee4da900f302dc698

doc/source/vendor-support.rst

@@ -92,3 +92,20 @@ BHS-1          Beauharnois, QC
 * Image API Version is 2
 * Images must be in `qcow2` format
 * Floating IPs are not needed
+
+UnitedStack
+-----------
+
+https://identity.api.ustack.com/v3
+
+============== ================
+Region Name    Human Name
+============== ================
+bj1            Beijing
+gd1            Guangdong
+============== ================
+
+* Identity API Version is 3
+* Image API Version is 2
+* Images must be in `raw` format
+* Floating IPs are not needed

os_client_config/vendors.py

@@ -59,5 +59,13 @@ CLOUD_DEFAULTS = dict(
         image_format='qcow2',
         floating_ip_source=None,
     ),
-
+    unitedstack=dict(
+        auth=dict(
+            auth_url='https://identity.api.ustack.com/v3',
+        ),
+        identity_api_version='3',
+        image_api_version='2',
+        image_format='raw',
+        floating_ip_source=None,
+    ),
 )