From 7f03b092a4b55536af37e6b8f1ffd3a3cde1ed02 Mon Sep 17 00:00:00 2001
From: Aarti Kriplani <aarti.kriplani@RACKSPACE.COM>
Date: Thu, 6 Jun 2013 15:49:58 +0530
Subject: [PATCH] Migrate each instances of a host to another.
Added a new extension that adds the ability for admins to migrate all
servers of a host to another available hosts.
Implements blueprint host-servers-migrate
Change-Id: I4e9c4be7ceb098d7a3bf553fd44addd46e8bce72
---
novaclient/tests/v1_1/test_shell.py | 12 +++++
.../v1_1/contrib/host_servers_migrate.py | 49 +++++++++++++++++++
2 files changed, 61 insertions(+)
create mode 100644 novaclient/v1_1/contrib/host_servers_migrate.py
diff --git a/novaclient/tests/v1_1/test_shell.py b/novaclient/tests/v1_1/test_shell.py
index 8defd288d..4b3aeedbc 100644
--- a/novaclient/tests/v1_1/test_shell.py
+++ b/novaclient/tests/v1_1/test_shell.py
@@ -1017,6 +1017,18 @@ class ShellTest(utils.TestCase):
{'evacuate': {'host': None,
'onSharedStorage': True}}, pos=4)
+ def test_host_servers_migrate(self):
+ self.run_command('host-servers-migrate hyper')
+ self.assert_called('GET', '/os-hypervisors/hyper/servers', pos=0)
+ self.assert_called('POST',
+ '/servers/uuid1/action', {'migrate': None}, pos=1)
+ self.assert_called('POST',
+ '/servers/uuid2/action', {'migrate': None}, pos=2)
+ self.assert_called('POST',
+ '/servers/uuid3/action', {'migrate': None}, pos=3)
+ self.assert_called('POST',
+ '/servers/uuid4/action', {'migrate': None}, pos=4)
+
def test_coverage_start(self):
self.run_command('coverage-start')
self.assert_called('POST', '/os-coverage/action')
diff --git a/novaclient/v1_1/contrib/host_servers_migrate.py b/novaclient/v1_1/contrib/host_servers_migrate.py
new file mode 100644
index 000000000..3076dc51d
--- /dev/null
+++ b/novaclient/v1_1/contrib/host_servers_migrate.py
@@ -0,0 +1,49 @@
+# Copyright 2013 Rackspace Hosting
+# All Rights Reserved.
+#
+# 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.
+
+from novaclient import base
+from novaclient import utils
+
+
+class HostServersMigrateResponse(base.Resource):
+ pass
+
+
+def _server_migrate(cs, server):
+ success = True
+ error_message = ""
+ try:
+ cs.servers.migrate(server['uuid'])
+ except Exception as e:
+ success = False
+ error_message = "Error while migrating instance: %s" % e
+ return HostServersMigrateResponse(base.Manager,
+ {"server_uuid": server['uuid'],
+ "migration_accepted": success,
+ "error_message": error_message})
+
+
+@utils.arg('host', metavar='<host>', help='Name of host.')
+def do_host_servers_migrate(cs, args):
+ """Migrate all instances of the specified host to other available hosts."""
+ hypervisors = cs.hypervisors.search(args.host, servers=True)
+ response = []
+ for hyper in hypervisors:
+ if hasattr(hyper, 'servers'):
+ for server in hyper.servers:
+ response.append(_server_migrate(cs, server))
+
+ utils.print_list(response,
+ ["Server UUID", "Migration Accepted", "Error Message"])