Add support to specify volume quotas per volume type

Add a --volume-type option to quota set, this will allow users
to set quotas for volume attributes on a per volume-type basis.

for example:
  openstack quota set admin --volume-type myvol --volumes 12

Change-Id: I3ce9cf82a65d4f012b339f0e0dedb752cb132c33
Closes-Bug: 1438377

Author: Steve Martinelli

doc/source/command-objects/quota.rst

@@ -30,6 +30,7 @@ Set quotas for project
         [--gigabytes <new-gigabytes>]
         [--snapshots <new-snapshots>]
         [--volumes <new-volumes>]
+        [--volume-type <volume-type>]
 
         <project>
 
@@ -121,6 +122,10 @@ Set quotas for class
 
     New value for the snapshots quota
 
+.. option:: --volume-type <volume-type>
+
+    Set quotas for a specific <volume-type>
+
 quota show
 ----------
 

openstackclient/common/quota.py

@@ -82,6 +82,11 @@ def get_parser(self, prog_name):
                 type=int,
                 help='New value for the %s quota' % v,
             )
+        parser.add_argument(
+            '--volume-type',
+            metavar='<volume-type>',
+            help='Set quotas for a specific <volume-type>',
+        )
         return parser
 
     def take_action(self, parsed_args):
@@ -97,8 +102,11 @@ def take_action(self, parsed_args):
 
         volume_kwargs = {}
         for k, v in VOLUME_QUOTAS.items():
-            if v in parsed_args:
-                volume_kwargs[k] = getattr(parsed_args, v, None)
+            value = getattr(parsed_args, v, None)
+            if value is not None:
+                if parsed_args.volume_type:
+                    k = k + '_%s' % parsed_args.volume_type
+                volume_kwargs[k] = value
 
         if compute_kwargs == {} and volume_kwargs == {}:
             sys.stderr.write("No quotas updated")