Add support for volume API v2 QoS commands

This commit adds the following commands:
  volume qos associate
  volume qos create
  volume qos delete
  volume qos disassociate
  volume qos list
  volume qos set
  volume qos show
  volume qos unset

Change-Id: If3c679557ac9abb0dfc75d290b96fb9c8d46c7b7
Partial-Bug: #1467967

3 files changed, 792 insertions, 0 deletions

diff --git a/openstackclient/tests/volume/v2/fakes.py b/openstackclient/tests/volume/v2/fakes.py
index f28a3e25..4f5f9cfd 100644
--- a/openstackclient/tests/volume/v2/fakes.py
+++ b/openstackclient/tests/volume/v2/fakes.py
@@ -117,6 +117,47 @@ BACKUP = {
 BACKUP_columns = tuple(sorted(BACKUP))
 BACKUP_data = tuple((BACKUP[x] for x in sorted(BACKUP)))
 
+qos_id = '6f2be1de-997b-4230-b76c-a3633b59e8fb'
+qos_consumer = 'front-end'
+qos_default_consumer = 'both'
+qos_name = "fake-qos-specs"
+qos_specs = {
+    'foo': 'bar',
+    'iops': '9001'
+}
+qos_association = {
+    'association_type': 'volume_type',
+    'name': type_name,
+    'id': type_id
+}
+
+QOS = {
+    'id': qos_id,
+    'consumer': qos_consumer,
+    'name': qos_name
+}
+
+QOS_DEFAULT_CONSUMER = {
+    'id': qos_id,
+    'consumer': qos_default_consumer,
+    'name': qos_name
+}
+
+QOS_WITH_SPECS = {
+    'id': qos_id,
+    'consumer': qos_consumer,
+    'name': qos_name,
+    'specs': qos_specs
+}
+
+QOS_WITH_ASSOCIATIONS = {
+    'id': qos_id,
+    'consumer': qos_consumer,
+    'name': qos_name,
+    'specs': qos_specs,
+    'associations': [qos_association]
+}
+
 
 class FakeVolumeClient(object):
     def __init__(self, **kwargs):
@@ -130,6 +171,8 @@ class FakeVolumeClient(object):
         self.volume_types.resource_class = fakes.FakeResource(None, {})
         self.restores = mock.Mock()
         self.restores.resource_class = fakes.FakeResource(None, {})
+        self.qos_specs = mock.Mock()
+        self.qos_specs.resource_class = fakes.FakeResource(None, {})
         self.auth_token = kwargs['token']
         self.management_url = kwargs['endpoint']
 
diff --git a/openstackclient/tests/volume/v2/test_qos_specs.py b/openstackclient/tests/volume/v2/test_qos_specs.py
new file mode 100644
index 00000000..92b3f179
--- /dev/null
+++ b/openstackclient/tests/volume/v2/test_qos_specs.py
@@ -0,0 +1,446 @@
+#   Copyright 2015 iWeb Technologies Inc.
+#
+#   Licensed under the Apache License, Version 2.0 (the "License"); you may
+#   not use this file except in compliance with the License. You may obtain
+#   a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#   WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#   License for the specific language governing permissions and limitations
+#   under the License.
+#
+
+import copy
+
+from openstackclient.common import utils
+from openstackclient.tests import fakes
+from openstackclient.tests.volume.v2 import fakes as volume_fakes
+from openstackclient.volume.v2 import qos_specs
+
+
+class TestQos(volume_fakes.TestVolume):
+
+    def setUp(self):
+        super(TestQos, self).setUp()
+
+        self.qos_mock = self.app.client_manager.volume.qos_specs
+        self.qos_mock.reset_mock()
+
+        self.types_mock = self.app.client_manager.volume.volume_types
+        self.types_mock.reset_mock()
+
+
+class TestQosAssociate(TestQos):
+    def setUp(self):
+        super(TestQosAssociate, self).setUp()
+
+        # Get the command object to test
+        self.cmd = qos_specs.AssociateQos(self.app, None)
+
+    def test_qos_associate(self):
+        self.qos_mock.get.return_value = fakes.FakeResource(
+            None,
+            copy.deepcopy(volume_fakes.QOS),
+            loaded=True
+        )
+        self.types_mock.get.return_value = fakes.FakeResource(
+            None,
+            copy.deepcopy(volume_fakes.TYPE),
+            loaded=True
+        )
+        arglist = [
+            volume_fakes.qos_id,
+            volume_fakes.type_id
+        ]
+        verifylist = [
+            ('qos_specs', volume_fakes.qos_id),
+            ('volume_type', volume_fakes.type_id)
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        self.cmd.take_action(parsed_args)
+        self.qos_mock.associate.assert_called_with(
+            volume_fakes.qos_id,
+            volume_fakes.type_id
+        )
+
+
+class TestQosCreate(TestQos):
+    def setUp(self):
+        super(TestQosCreate, self).setUp()
+
+        # Get the command object to test
+        self.cmd = qos_specs.CreateQos(self.app, None)
+
+    def test_qos_create_without_properties(self):
+        self.qos_mock.create.return_value = fakes.FakeResource(
+            None,
+            copy.deepcopy(volume_fakes.QOS_DEFAULT_CONSUMER),
+            loaded=True
+        )
+
+        arglist = [
+            volume_fakes.qos_name,
+        ]
+        verifylist = [
+            ('name', volume_fakes.qos_name),
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        columns, data = self.cmd.take_action(parsed_args)
+
+        self.qos_mock.create.assert_called_with(
+            volume_fakes.qos_name,
+            {'consumer': volume_fakes.qos_default_consumer}
+        )
+
+        collist = (
+            'consumer',
+            'id',
+            'name'
+        )
+        self.assertEqual(collist, columns)
+        datalist = (
+            volume_fakes.qos_default_consumer,
+            volume_fakes.qos_id,
+            volume_fakes.qos_name
+        )
+        self.assertEqual(datalist, data)
+
+    def test_qos_create_with_consumer(self):
+        self.qos_mock.create.return_value = fakes.FakeResource(
+            None,
+            copy.deepcopy(volume_fakes.QOS),
+            loaded=True
+        )
+
+        arglist = [
+            volume_fakes.qos_name,
+            '--consumer', volume_fakes.qos_consumer
+        ]
+        verifylist = [
+            ('name', volume_fakes.qos_name),
+            ('consumer', volume_fakes.qos_consumer)
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        columns, data = self.cmd.take_action(parsed_args)
+
+        self.qos_mock.create.assert_called_with(
+            volume_fakes.qos_name,
+            {'consumer': volume_fakes.qos_consumer}
+        )
+
+        collist = (
+            'consumer',
+            'id',
+            'name'
+        )
+        self.assertEqual(collist, columns)
+        datalist = (
+            volume_fakes.qos_consumer,
+            volume_fakes.qos_id,
+            volume_fakes.qos_name
+        )
+        self.assertEqual(datalist, data)
+
+    def test_qos_create_with_properties(self):
+        self.qos_mock.create.return_value = fakes.FakeResource(
+            None,
+            copy.deepcopy(volume_fakes.QOS_WITH_SPECS),
+            loaded=True
+        )
+
+        arglist = [
+            volume_fakes.qos_name,
+            '--consumer', volume_fakes.qos_consumer,
+            '--property', 'foo=bar',
+            '--property', 'iops=9001'
+        ]
+        verifylist = [
+            ('name', volume_fakes.qos_name),
+            ('consumer', volume_fakes.qos_consumer),
+            ('property', volume_fakes.qos_specs)
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        columns, data = self.cmd.take_action(parsed_args)
+
+        specs = volume_fakes.qos_specs.copy()
+        specs.update({'consumer': volume_fakes.qos_consumer})
+        self.qos_mock.create.assert_called_with(
+            volume_fakes.qos_name,
+            specs
+        )
+
+        collist = (
+            'consumer',
+            'id',
+            'name',
+            'specs',
+        )
+        self.assertEqual(collist, columns)
+        datalist = (
+            volume_fakes.qos_consumer,
+            volume_fakes.qos_id,
+            volume_fakes.qos_name,
+            volume_fakes.qos_specs,
+        )
+        self.assertEqual(datalist, data)
+
+
+class TestQosDelete(TestQos):
+    def setUp(self):
+        super(TestQosDelete, self).setUp()
+
+        self.qos_mock.get.return_value = fakes.FakeResource(
+            None,
+            copy.deepcopy(volume_fakes.QOS),
+            loaded=True,
+        )
+
+        # Get the command object to test
+        self.cmd = qos_specs.DeleteQos(self.app, None)
+
+    def test_qos_delete_with_id(self):
+        arglist = [
+            volume_fakes.qos_id
+        ]
+        verifylist = [
+            ('qos_specs', volume_fakes.qos_id)
+        ]
+
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        self.cmd.take_action(parsed_args)
+        self.qos_mock.delete.assert_called_with(volume_fakes.qos_id)
+
+    def test_qos_delete_with_name(self):
+        arglist = [
+            volume_fakes.qos_name
+        ]
+        verifylist = [
+            ('qos_specs', volume_fakes.qos_name)
+        ]
+
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        self.cmd.take_action(parsed_args)
+        self.qos_mock.delete.assert_called_with(volume_fakes.qos_id)
+
+
+class TestQosDisassociate(TestQos):
+    def setUp(self):
+        super(TestQosDisassociate, self).setUp()
+
+        # Get the command object to test
+        self.cmd = qos_specs.DisassociateQos(self.app, None)
+
+    def test_qos_disassociate_with_volume_type(self):
+        self.qos_mock.get.return_value = fakes.FakeResource(
+            None,
+            copy.deepcopy(volume_fakes.QOS),
+            loaded=True
+        )
+        self.types_mock.get.return_value = fakes.FakeResource(
+            None,
+            copy.deepcopy(volume_fakes.TYPE),
+            loaded=True
+        )
+        arglist = [
+            volume_fakes.qos_id,
+            '--volume-type', volume_fakes.type_id
+        ]
+        verifylist = [
+            ('qos_specs', volume_fakes.qos_id),
+            ('volume_type', volume_fakes.type_id)
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        self.cmd.take_action(parsed_args)
+        self.qos_mock.disassociate.assert_called_with(
+            volume_fakes.qos_id,
+            volume_fakes.type_id
+        )
+
+    def test_qos_disassociate_with_all_volume_types(self):
+        self.qos_mock.get.return_value = fakes.FakeResource(
+            None,
+            copy.deepcopy(volume_fakes.QOS),
+            loaded=True
+        )
+
+        arglist = [
+            volume_fakes.qos_id,
+            '--all'
+        ]
+        verifylist = [
+            ('qos_specs', volume_fakes.qos_id)
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        self.cmd.take_action(parsed_args)
+        self.qos_mock.disassociate_all.assert_called_with(volume_fakes.qos_id)
+
+
+class TestQosList(TestQos):
+    def setUp(self):
+        super(TestQosList, self).setUp()
+
+        self.qos_mock.get.return_value = fakes.FakeResource(
+            None,
+            copy.deepcopy(volume_fakes.QOS_WITH_ASSOCIATIONS),
+            loaded=True,
+        )
+        self.qos_mock.list.return_value = [self.qos_mock.get.return_value]
+        self.qos_mock.get_associations.return_value = [fakes.FakeResource(
+            None,
+            copy.deepcopy(volume_fakes.qos_association),
+            loaded=True,
+        )]
+
+        # Get the command object to test
+        self.cmd = qos_specs.ListQos(self.app, None)
+
+    def test_qos_list(self):
+        arglist = []
+        verifylist = []
+
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        columns, data = self.cmd.take_action(parsed_args)
+        self.qos_mock.list.assert_called()
+
+        collist = (
+            'ID',
+            'Name',
+            'Consumer',
+            'Associations',
+            'Specs',
+        )
+        self.assertEqual(collist, columns)
+        datalist = ((
+            volume_fakes.qos_id,
+            volume_fakes.qos_name,
+            volume_fakes.qos_consumer,
+            volume_fakes.type_name,
+            utils.format_dict(volume_fakes.qos_specs),
+        ), )
+        self.assertEqual(datalist, tuple(data))
+
+
+class TestQosSet(TestQos):
+    def setUp(self):
+        super(TestQosSet, self).setUp()
+
+        # Get the command object to test
+        self.cmd = qos_specs.SetQos(self.app, None)
+
+    def test_qos_set_with_properties_with_id(self):
+        self.qos_mock.get.return_value = fakes.FakeResource(
+            None,
+            copy.deepcopy(volume_fakes.QOS_WITH_SPECS),
+            loaded=True
+        )
+        arglist = [
+            volume_fakes.qos_id,
+            '--property', 'foo=bar',
+            '--property', 'iops=9001'
+        ]
+        verifylist = [
+            ('qos_specs', volume_fakes.qos_id),
+            ('property', volume_fakes.qos_specs)
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        self.cmd.take_action(parsed_args)
+        self.qos_mock.set_keys.assert_called_with(
+            volume_fakes.qos_id,
+            volume_fakes.qos_specs
+        )
+
+
+class TestQosShow(TestQos):
+    def setUp(self):
+        super(TestQosShow, self).setUp()
+
+        self.qos_mock.get.return_value = fakes.FakeResource(
+            None,
+            copy.deepcopy(volume_fakes.QOS_WITH_ASSOCIATIONS),
+            loaded=True,
+        )
+        self.qos_mock.get_associations.return_value = [fakes.FakeResource(
+            None,
+            copy.deepcopy(volume_fakes.qos_association),
+            loaded=True,
+        )]
+
+        # Get the command object to test
+        self.cmd = qos_specs.ShowQos(self.app, None)
+
+    def test_qos_show(self):
+        arglist = [
+            volume_fakes.qos_id
+        ]
+        verifylist = [
+            ('qos_specs', volume_fakes.qos_id)
+        ]
+
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        columns, data = self.cmd.take_action(parsed_args)
+        self.qos_mock.get.assert_called_with(
+            volume_fakes.qos_id
+        )
+
+        collist = (
+            'associations',
+            'consumer',
+            'id',
+            'name',
+            'specs'
+        )
+        self.assertEqual(collist, columns)
+        datalist = (
+            volume_fakes.type_name,
+            volume_fakes.qos_consumer,
+            volume_fakes.qos_id,
+            volume_fakes.qos_name,
+            utils.format_dict(volume_fakes.qos_specs),
+        )
+        self.assertEqual(datalist, tuple(data))
+
+
+class TestQosUnset(TestQos):
+    def setUp(self):
+        super(TestQosUnset, self).setUp()
+
+        # Get the command object to test
+        self.cmd = qos_specs.UnsetQos(self.app, None)
+
+    def test_qos_unset_with_properties(self):
+        self.qos_mock.get.return_value = fakes.FakeResource(
+            None,
+            copy.deepcopy(volume_fakes.QOS),
+            loaded=True
+        )
+        arglist = [
+            volume_fakes.qos_id,
+            '--property', 'iops',
+            '--property', 'foo'
+        ]
+
+        verifylist = [
+            ('qos_specs', volume_fakes.qos_id),
+            ('property', ['iops', 'foo'])
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        self.cmd.take_action(parsed_args)
+        self.qos_mock.unset_keys.assert_called_with(
+            volume_fakes.qos_id,
+            ['iops', 'foo']
+        )
diff --git a/openstackclient/volume/v2/qos_specs.py b/openstackclient/volume/v2/qos_specs.py
new file mode 100644
index 00000000..7f02fa4a
--- /dev/null
+++ b/openstackclient/volume/v2/qos_specs.py
@@ -0,0 +1,303 @@
+#   Copyright 2015 iWeb Technologies Inc.
+#
+#   Licensed under the Apache License, Version 2.0 (the "License"); you may
+#   not use this file except in compliance with the License. You may obtain
+#   a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#   WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#   License for the specific language governing permissions and limitations
+#   under the License.
+#
+
+"""Volume v2 QoS action implementations"""
+
+import logging
+import six
+
+from cliff import command
+from cliff import lister
+from cliff import show
+
+from openstackclient.common import parseractions
+from openstackclient.common import utils
+
+
+class AssociateQos(command.Command):
+    """Associate a QoS specification to a volume type"""
+
+    log = logging.getLogger(__name__ + '.AssociateQos')
+
+    def get_parser(self, prog_name):
+        parser = super(AssociateQos, self).get_parser(prog_name)
+        parser.add_argument(
+            'qos_specs',
+            metavar='<qos-specs>',
+            help='QoS specification to modify (name or ID)',
+        )
+        parser.add_argument(
+            'volume_type',
+            metavar='<volume-type>',
+            help='Volume type to associate the QoS (name or ID)',
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        self.log.debug('take_action(%s)', parsed_args)
+        volume_client = self.app.client_manager.volume
+        qos_specs = utils.find_resource(volume_client.qos_specs,
+                                        parsed_args.qos_specs)
+        volume_type = utils.find_resource(volume_client.volume_types,
+                                          parsed_args.volume_type)
+
+        volume_client.qos_specs.associate(qos_specs.id, volume_type.id)
+
+        return
+
+
+class CreateQos(show.ShowOne):
+    """Create new QoS specification"""
+
+    log = logging.getLogger(__name__ + '.CreateQos')
+
+    def get_parser(self, prog_name):
+        parser = super(CreateQos, self).get_parser(prog_name)
+        parser.add_argument(
+            'name',
+            metavar='<name>',
+            help='New QoS specification name',
+        )
+        consumer_choices = ['front-end', 'back-end', 'both']
+        parser.add_argument(
+            '--consumer',
+            metavar='<consumer>',
+            choices=consumer_choices,
+            default='both',
+            help='Consumer of the QoS. Valid consumers: %s '
+                 "(defaults to 'both')" % utils.format_list(consumer_choices)
+        )
+        parser.add_argument(
+            '--property',
+            metavar='<key=value>',
+            action=parseractions.KeyValueAction,
+            help='Set a QoS specification property '
+                 '(repeat option to set multiple properties)',
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        self.log.debug('take_action(%s)', parsed_args)
+        volume_client = self.app.client_manager.volume
+        specs = {}
+        specs.update({'consumer': parsed_args.consumer})
+
+        if parsed_args.property:
+            specs.update(parsed_args.property)
+
+        qos_specs = volume_client.qos_specs.create(parsed_args.name, specs)
+
+        return zip(*sorted(six.iteritems(qos_specs._info)))
+
+
+class DeleteQos(command.Command):
+    """Delete QoS specification"""
+
+    log = logging.getLogger(__name__ + '.DeleteQos')
+
+    def get_parser(self, prog_name):
+        parser = super(DeleteQos, self).get_parser(prog_name)
+        parser.add_argument(
+            'qos_specs',
+            metavar='<qos-specs>',
+            help='QoS specification to delete (name or ID)',
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        self.log.debug('take_action(%s)', parsed_args)
+        volume_client = self.app.client_manager.volume
+        qos_specs = utils.find_resource(volume_client.qos_specs,
+                                        parsed_args.qos_specs)
+
+        volume_client.qos_specs.delete(qos_specs.id)
+
+        return
+
+
+class DisassociateQos(command.Command):
+    """Disassociate a QoS specification from a volume type"""
+
+    log = logging.getLogger(__name__ + '.DisassociateQos')
+
+    def get_parser(self, prog_name):
+        parser = super(DisassociateQos, self).get_parser(prog_name)
+        parser.add_argument(
+            'qos_specs',
+            metavar='<qos-specs>',
+            help='QoS specification to modify (name or ID)',
+        )
+        volume_type_group = parser.add_mutually_exclusive_group()
+        volume_type_group.add_argument(
+            '--volume-type',
+            metavar='<volume-type>',
+            help='Volume type to disassociate the QoS from (name or ID)',
+        )
+        volume_type_group.add_argument(
+            '--all',
+            action='store_true',
+            default=False,
+            help='Disassociate the QoS from every volume type',
+        )
+
+        return parser
+
+    def take_action(self, parsed_args):
+        self.log.debug('take_action(%s)', parsed_args)
+        volume_client = self.app.client_manager.volume
+        qos_specs = utils.find_resource(volume_client.qos_specs,
+                                        parsed_args.qos_specs)
+
+        if parsed_args.volume_type:
+            volume_type = utils.find_resource(volume_client.volume_types,
+                                              parsed_args.volume_type)
+            volume_client.qos_specs.disassociate(qos_specs.id, volume_type.id)
+        elif parsed_args.all:
+            volume_client.qos_specs.disassociate_all(qos_specs.id)
+
+        return
+
+
+class ListQos(lister.Lister):
+    """List QoS specifications"""
+
+    log = logging.getLogger(__name__ + '.ListQos')
+
+    def take_action(self, parsed_args):
+        self.log.debug('take_action(%s)', parsed_args)
+        volume_client = self.app.client_manager.volume
+        qos_specs_list = volume_client.qos_specs.list()
+
+        for qos in qos_specs_list:
+            qos_associations = volume_client.qos_specs.get_associations(qos)
+            if qos_associations:
+                associations = [association.name
+                                for association in qos_associations]
+                qos._info.update({'associations': associations})
+
+        columns = ('ID', 'Name', 'Consumer', 'Associations', 'Specs')
+        return (columns,
+                (utils.get_dict_properties(
+                    s._info, columns,
+                    formatters={
+                        'Specs': utils.format_dict,
+                        'Associations': utils.format_list
+                    },
+                ) for s in qos_specs_list))
+
+
+class SetQos(command.Command):
+    """Set QoS specification properties"""
+
+    log = logging.getLogger(__name__ + '.SetQos')
+
+    def get_parser(self, prog_name):
+        parser = super(SetQos, self).get_parser(prog_name)
+        parser.add_argument(
+            'qos_specs',
+            metavar='<qos-specs>',
+            help='QoS specification to modify (name or ID)',
+        )
+        parser.add_argument(
+            '--property',
+            metavar='<key=value>',
+            action=parseractions.KeyValueAction,
+            help='Property to add or modify for this QoS specification '
+                 '(repeat option to set multiple properties)',
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        self.log.debug('take_action(%s)', parsed_args)
+        volume_client = self.app.client_manager.volume
+        qos_specs = utils.find_resource(volume_client.qos_specs,
+                                        parsed_args.qos_specs)
+
+        if parsed_args.property:
+            volume_client.qos_specs.set_keys(qos_specs.id,
+                                             parsed_args.property)
+        else:
+            self.app.log.error("No changes requested\n")
+
+        return
+
+
+class ShowQos(show.ShowOne):
+    """Display QoS specification details"""
+
+    log = logging.getLogger(__name__ + '.ShowQos')
+
+    def get_parser(self, prog_name):
+        parser = super(ShowQos, self).get_parser(prog_name)
+        parser.add_argument(
+            'qos_specs',
+            metavar='<qos-specs>',
+            help='QoS specification to display (name or ID)',
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        self.log.debug('take_action(%s)', parsed_args)
+        volume_client = self.app.client_manager.volume
+        qos_specs = utils.find_resource(volume_client.qos_specs,
+                                        parsed_args.qos_specs)
+
+        qos_associations = volume_client.qos_specs.get_associations(qos_specs)
+        if qos_associations:
+            associations = [association.name
+                            for association in qos_associations]
+            qos_specs._info.update({
+                'associations': utils.format_list(associations)
+            })
+        qos_specs._info.update({'specs': utils.format_dict(qos_specs.specs)})
+
+        return zip(*sorted(six.iteritems(qos_specs._info)))
+
+
+class UnsetQos(command.Command):
+    """Unset QoS specification properties"""
+
+    log = logging.getLogger(__name__ + '.SetQos')
+
+    def get_parser(self, prog_name):
+        parser = super(UnsetQos, self).get_parser(prog_name)
+        parser.add_argument(
+            'qos_specs',
+            metavar='<qos-specs>',
+            help='QoS specification to modify (name or ID)',
+        )
+        parser.add_argument(
+            '--property',
+            metavar='<key>',
+            action='append',
+            default=[],
+            help='Property to remove from the QoS specification. '
+                 '(repeat option to unset multiple properties)',
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        self.log.debug('take_action(%s)', parsed_args)
+        volume_client = self.app.client_manager.volume
+        qos_specs = utils.find_resource(volume_client.qos_specs,
+                                        parsed_args.qos_specs)
+
+        if parsed_args.property:
+            volume_client.qos_specs.unset_keys(qos_specs.id,
+                                               parsed_args.property)
+        else:
+            self.app.log.error("No changes requested\n")
+
+        return