138 lines
5.1 KiB
Python
138 lines
5.1 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 OpenStack, LLC
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import random
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import string
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import nose
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from nose.plugins.attrib import attr
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import unittest2 as unittest
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from tempest.common.utils.linux.remote_client import RemoteClient
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from tempest import config
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from tempest import exceptions
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from tempest.services.compute.json.hosts_client import HostsClientJSON
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from tempest.services.compute.json.servers_client import ServersClientJSON
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from tempest.tests.compute import base
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@attr(category='live-migration')
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class LiveBlockMigrationTest(base.BaseComputeTest):
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live_migration_available = (
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config.TempestConfig().compute.live_migration_available)
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use_block_migration_for_live_migration = (
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config.TempestConfig().compute.use_block_migration_for_live_migration)
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run_ssh = config.TempestConfig().compute.run_ssh
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@classmethod
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def setUpClass(cls):
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super(LiveBlockMigrationTest, cls).setUpClass()
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tenant_name = cls.config.identity_admin.tenant_name
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cls.admin_hosts_client = HostsClientJSON(
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*cls._get_client_args(), tenant_name=tenant_name)
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cls.admin_servers_client = ServersClientJSON(
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*cls._get_client_args(), tenant_name=tenant_name)
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cls.created_server_ids = []
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def _get_compute_hostnames(self):
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_resp, body = self.admin_hosts_client.list_hosts()
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return [
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host_record['host_name']
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for host_record in body
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if host_record['service'] == 'compute'
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]
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def _get_server_details(self, server_id):
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_resp, body = self.admin_servers_client.get_server(server_id)
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return body
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def _get_host_for_server(self, server_id):
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return self._get_server_details(server_id)['OS-EXT-SRV-ATTR:host']
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def _migrate_server_to(self, server_id, dest_host):
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_resp, body = self.admin_servers_client.live_migrate_server(
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server_id, dest_host, self.use_block_migration_for_live_migration)
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return body
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def _get_host_other_than(self, host):
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for target_host in self._get_compute_hostnames():
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if host != target_host:
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return target_host
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def _get_non_existing_host_name(self):
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random_name = ''.join(
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random.choice(string.ascii_uppercase) for x in range(20))
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self.assertNotIn(random_name, self._get_compute_hostnames())
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return random_name
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def _get_server_status(self, server_id):
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return self._get_server_details(server_id)['status']
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def _get_an_active_server(self):
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for server_id in self.created_server_ids:
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if 'ACTIVE' == self._get_server_status(server_id):
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return server_id
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else:
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server = self.create_server()
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server_id = server['id']
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self.password = server['adminPass']
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self.password = 'password'
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self.created_server_ids.append(server_id)
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return server_id
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@attr(type='positive')
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@unittest.skipIf(not live_migration_available,
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'Block Live migration not available')
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def test_001_live_block_migration(self):
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"""Live block migrate an instance to another host"""
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if len(self._get_compute_hostnames()) < 2:
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raise nose.SkipTest(
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"Less than 2 compute nodes, skipping migration test.")
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server_id = self._get_an_active_server()
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actual_host = self._get_host_for_server(server_id)
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target_host = self._get_host_other_than(actual_host)
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self._migrate_server_to(server_id, target_host)
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self.servers_client.wait_for_server_status(server_id, 'ACTIVE')
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self.assertEquals(target_host, self._get_host_for_server(server_id))
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@attr(type='positive', bug='lp1051881')
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@unittest.skip('Until bug 1051881 is dealt with.')
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@unittest.skipIf(not live_migration_available,
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'Block Live migration not available')
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def test_002_invalid_host_for_migration(self):
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"""Migrating to an invalid host should not change the status"""
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server_id = self._get_an_active_server()
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target_host = self._get_non_existing_host_name()
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with self.assertRaises(exceptions.BadRequest) as cm:
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self._migrate_server_to(server_id, target_host)
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self.assertEquals('ACTIVE', self._get_server_status(server_id))
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@classmethod
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def tearDownClass(cls):
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for server_id in cls.created_server_ids:
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cls.servers_client.delete_server(server_id)
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super(LiveBlockMigrationTest, cls).tearDownClass()
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