quota: Allow showing project-specific quotas

Add '--compute', '--network' and '--volume' options to the 'quota show'
command, along with a default '--all' option, allowing us to restrict
quotas shown to an individual service.

Change-Id: I122b765df01887b8d916ee6567ffb7768fcb4392
Signed-off-by: Stephen Finucane <sfinucan@redhat.com>

Author: stephenfin

openstackclient/common/quota.py

@@ -739,6 +739,40 @@ def get_parser(self, prog_name):
             default=False,
             help=_('Show details about quotas usage'),
         )
+        service_group = parser.add_mutually_exclusive_group()
+        service_group.add_argument(
+            '--all',
+            action='store_const',
+            const='all',
+            dest='service',
+            default='all',
+            help=_('Show quotas for all services'),
+        )
+        service_group.add_argument(
+            '--compute',
+            action='store_const',
+            const='compute',
+            dest='service',
+            default='all',
+            help=_('Show compute quota'),
+        )
+        service_group.add_argument(
+            '--volume',
+            action='store_const',
+            const='volume',
+            dest='service',
+            default='all',
+            help=_('Show volume quota'),
+        )
+        service_group.add_argument(
+            '--network',
+            action='store_const',
+            const='network',
+            dest='service',
+            default='all',
+            help=_('Show network quota'),
+        )
+
         return parser
 
     def take_action(self, parsed_args):
@@ -748,32 +782,39 @@ def take_action(self, parsed_args):
             project_info = get_project(self.app, parsed_args.project)
             project = project_info['id']
 
-        # NOTE(dtroyer): These quota API calls do not validate the project or
-        # class arguments and return what appears to be the default quota
-        # values if the project or class does not exist. If this is determined
-        # to be the intended behaviour of the API we will validate the argument
-        # with Identity ourselves later.
-        compute_quota_info = get_compute_quotas(
-            self.app,
-            project,
-            detail=parsed_args.usage,
-            quota_class=parsed_args.quota_class,
-            default=parsed_args.default,
-        )
-        volume_quota_info = get_volume_quotas(
-            self.app,
-            project,
-            detail=parsed_args.usage,
-            quota_class=parsed_args.quota_class,
-            default=parsed_args.default,
-        )
-        network_quota_info = get_network_quotas(
-            self.app,
-            project,
-            detail=parsed_args.usage,
-            quota_class=parsed_args.quota_class,
-            default=parsed_args.default,
-        )
+        compute_quota_info = {}
+        volume_quota_info = {}
+        network_quota_info = {}
+
+        # NOTE(stephenfin): These quota API calls do not validate the project
+        # or class arguments and return what appears to be the default quota
+        # values if the project or class does not exist. This is expected
+        # behavior. However, we have already checked for the presence of the
+        # project above so it shouldn't be an issue.
+        if parsed_args.service in {'all', 'compute'}:
+            compute_quota_info = get_compute_quotas(
+                self.app,
+                project,
+                detail=parsed_args.usage,
+                quota_class=parsed_args.quota_class,
+                default=parsed_args.default,
+            )
+        if parsed_args.service in {'all', 'volume'}:
+            volume_quota_info = get_volume_quotas(
+                self.app,
+                project,
+                detail=parsed_args.usage,
+                quota_class=parsed_args.quota_class,
+                default=parsed_args.default,
+            )
+        if parsed_args.service in {'all', 'network'}:
+            network_quota_info = get_network_quotas(
+                self.app,
+                project,
+                detail=parsed_args.usage,
+                quota_class=parsed_args.quota_class,
+                default=parsed_args.default,
+            )
 
         info = {}
         info.update(compute_quota_info)

openstackclient/tests/unit/common/test_quota.py

@@ -1087,6 +1087,7 @@ def test_quota_show(self):
             self.projects[0].name,
         ]
         verifylist = [
+            ('service', 'all'),
             ('project', self.projects[0].name),
         ]
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
@@ -1107,6 +1108,67 @@ def test_quota_show(self):
         )
         self.assertNotCalled(self.network.get_quota_default)
 
+    def test_quota_show__with_compute(self):
+        arglist = [
+            '--compute',
+            self.projects[0].name,
+        ]
+        verifylist = [
+            ('service', 'compute'),
+            ('project', self.projects[0].name),
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        self.cmd.take_action(parsed_args)
+
+        self.compute_quotas_mock.get.assert_called_once_with(
+            self.projects[0].id,
+            detail=False,
+        )
+        self.volume_quotas_mock.get.assert_not_called()
+        self.network.get_quota.assert_not_called()
+
+    def test_quota_show__with_volume(self):
+        arglist = [
+            '--volume',
+            self.projects[0].name,
+        ]
+        verifylist = [
+            ('service', 'volume'),
+            ('project', self.projects[0].name),
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        self.cmd.take_action(parsed_args)
+
+        self.compute_quotas_mock.get.assert_not_called()
+        self.volume_quotas_mock.get.assert_called_once_with(
+            self.projects[0].id,
+            usage=False,
+        )
+        self.network.get_quota.assert_not_called()
+
+    def test_quota_show__with_network(self):
+        arglist = [
+            '--network',
+            self.projects[0].name,
+        ]
+        verifylist = [
+            ('service', 'network'),
+            ('project', self.projects[0].name),
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        self.cmd.take_action(parsed_args)
+
+        self.compute_quotas_mock.get.assert_not_called()
+        self.volume_quotas_mock.get.assert_not_called()
+        self.network.get_quota.assert_called_once_with(
+            self.projects[0].id,
+            details=False,
+        )
+        self.assertNotCalled(self.network.get_quota_default)
+
     def test_quota_show__with_default(self):
         arglist = [
             '--default',

releasenotes/notes/quota-show-service-options-ba48d6eca8ffc4f9.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    The ``quota show`` command now allows you to show quotas for a specific
+    service using the ``--compute``, ``--volume``, or ``--network`` options.