[compute] Support restore server

Server in soft-delete state can be restored, add this command.

Change-Id: Id9d7246f89ae65273505f36dcb664996534ae986

Author: jichenjc

doc/source/command-objects/server.rst

@@ -514,6 +514,21 @@ process for the user: the first is to perform the resize, the second is
 to either confirm (verify) success and release the old server, or to declare
 a revert to release the new server and restart the old one.
 
+server restore
+--------------
+
+Restore server(s) from soft-deleted state
+
+.. program:: server restore
+.. code:: bash
+
+    os server restore
+        <server> [<server> ...]
+
+.. describe:: <server>
+
+    Server(s) to restore (name or ID)
+
 server resume
 -------------
 

doc/source/commands.rst

@@ -199,7 +199,7 @@ Those actions with an opposite action are noted in parens if applicable.
 * ``remove`` (``add``) - remove an object from a group of objects
 * ``rescue`` (``unrescue``) - reboot a server in a special rescue mode allowing access to the original disks
 * ``resize`` - change a server's flavor
-* ``restore`` - restore a heat stack snapshot
+* ``restore`` - restore a heat stack snapshot or restore a server in soft-deleted state
 * ``resume`` (``suspend``) - return one or more suspended servers to running state
 * ``revoke`` (``issue``) - revoke a token
 * ``save`` - download an object locally

openstackclient/compute/v2/server.py

@@ -1273,6 +1273,28 @@ def take_action(self, parsed_args):
             compute_client.servers.revert_resize(server)
 
 
+class RestoreServer(command.Command):
+    """Restore server(s)"""
+
+    def get_parser(self, prog_name):
+        parser = super(RestoreServer, self).get_parser(prog_name)
+        parser.add_argument(
+            'server',
+            metavar='<server>',
+            nargs='+',
+            help=_('Server(s) to restore (name or ID)'),
+        )
+        return parser
+
+    def take_action(self, parsed_args):
+        compute_client = self.app.client_manager.compute
+        for server in parsed_args.server:
+            utils.find_resource(
+                compute_client.servers,
+                server
+            ).restore()
+
+
 class ResumeServer(command.Command):
     """Resume server(s)"""
 

openstackclient/tests/compute/v2/test_server.py

@@ -998,6 +998,26 @@ def test_server_resize_revert(self):
         )
 
 
+class TestServerRestore(TestServer):
+
+    def setUp(self):
+        super(TestServerRestore, self).setUp()
+
+        # Get the command object to test
+        self.cmd = server.RestoreServer(self.app, None)
+
+        # Set methods to be tested.
+        self.methods = {
+            'restore': None,
+        }
+
+    def test_server_restore_one_server(self):
+        self.run_method_with_servers('restore', 1)
+
+    def test_server_restore_multi_servers(self):
+        self.run_method_with_servers('restore', 3)
+
+
 class TestServerResume(TestServer):
 
     def setUp(self):

releasenotes/notes/add-restore-server-d8c73e0e83df17dd.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    Add support for the ``server restore`` command.

setup.cfg

@@ -121,6 +121,7 @@ openstack.compute.v2 =
     server_remove_volume = openstackclient.compute.v2.server:RemoveServerVolume
     server_rescue = openstackclient.compute.v2.server:RescueServer
     server_resize = openstackclient.compute.v2.server:ResizeServer
+    server_restore = openstackclient.compute.v2.server:RestoreServer
     server_resume = openstackclient.compute.v2.server:ResumeServer
     server_set = openstackclient.compute.v2.server:SetServer
     server_shelve = openstackclient.compute.v2.server:ShelveServer