Add restart to OSC

This change adds database support to the python-openstackclient
project for the restart command

The trove command restart is now:
    openstack database instance restart

Change-Id: I24eeb001d27eae39be5c33650e9bc04287053c8c
Partially-Implements: blueprint trove-support-in-python-openstackclient

releasenotes/notes/add-restart-instance-to-osc-760c292b5b5c95de.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    The command ``trove restart`` is now available to use in
+    the python-openstackclient CLI as ``openstack database instance restart``

setup.cfg

@@ -63,6 +63,7 @@ openstack.database.v1 =
     database_instance_reset_status = troveclient.osc.v1.database_instances:ResetDatabaseInstanceStatus
     database_instance_resize_flavor = troveclient.osc.v1.database_instances:ResizeDatabaseInstanceFlavor
     database_instance_resize_volume = troveclient.osc.v1.database_instances:ResizeDatabaseInstanceVolume
+    database_instance_restart = troveclient.osc.v1.database_instances:RestartDatabaseInstance
     database_instance_show = troveclient.osc.v1.database_instances:ShowDatabaseInstance
     database_instance_upgrade = troveclient.osc.v1.database_instances:UpgradeDatabaseInstance
     database_limit_list = troveclient.osc.v1.database_limits:ListDatabaseLimits

troveclient/osc/v1/database_instances.py

@@ -529,3 +529,26 @@ class ForceDeleteDatabaseInstance(command.Command):
             msg = (_("Failed to delete instance %(instance)s: %(e)s")
                    % {'instance': parsed_args.instance, 'e': e})
             raise exceptions.CommandError(msg)
+
+
+class RestartDatabaseInstance(command.Command):
+
+    _description = _("Restarts an instance.")
+
+    def get_parser(self, prog_name):
+        parser = super(RestartDatabaseInstance, self).get_parser(
+            prog_name
+        )
+        parser.add_argument(
+            'instance',
+            metavar='<instance>',
+            type=str,
+            help=_('ID or name of the instance.')
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        db_instances = self.app.client_manager.database.instances
+        instance = osc_utils.find_resource(db_instances,
+                                           parsed_args.instance)
+        db_instances.restart(instance)

troveclient/tests/osc/v1/test_database_instances.py

@@ -283,3 +283,20 @@ class TestDatabaseInstanceEnableLog(TestInstances):
         self.instance_client.log_enable.assert_called_with('instance1',
                                                            'log_name')
         self.assertIsNone(result)
+
+
+class TestDatabaseInstanceRestart(TestInstances):
+
+    def setUp(self):
+        super(TestDatabaseInstanceRestart, self).setUp()
+        self.cmd = database_instances.RestartDatabaseInstance(self.app,
+                                                              None)
+
+    @mock.patch.object(utils, 'find_resource')
+    def test_instance_restart(self, mock_find):
+        args = ['instance1']
+        mock_find.return_value = args[0]
+        parsed_args = self.check_parser(self.cmd, args, [])
+        result = self.cmd.take_action(parsed_args)
+        self.instance_client.restart.assert_called_with('instance1')
+        self.assertIsNone(result)