2 # ############################################################################
3 # Copyright (c) 2017 Huawei Technologies Co.,Ltd and others.
5 # All rights reserved. This program and the accompanying materials
6 # are made available under the terms of the Apache License, Version 2.0
7 # which accompanies this distribution, and is available at
8 # http://www.apache.org/licenses/LICENSE-2.0
9 # ############################################################################
11 from __future__ import print_function
12 from __future__ import absolute_import
16 from yardstick.common import openstack_utils
17 from yardstick.common.utils import change_obj_to_dict
18 from yardstick.benchmark.scenarios import base
20 LOG = logging.getLogger(__name__)
23 class GetMigrateTargetHost(base.Scenario):
24 """Get a migrate target host according server
27 __scenario_type__ = "GetMigrateTargetHost"
29 def __init__(self, scenario_cfg, context_cfg):
30 self.scenario_cfg = scenario_cfg
31 self.context_cfg = context_cfg
33 self.options = self.scenario_cfg.get('options', {})
34 default_instance_id = self.options.get('server', {}).get('id', '')
35 self.instance_id = self.options.get('server_id', default_instance_id)
37 self.nova_client = openstack_utils.get_nova_client()
39 def run(self, result):
40 current_host = self._get_current_host_name(self.instance_id)
41 target_host = self._get_migrate_host(current_host)
43 keys = self.scenario_cfg.get('output', '').split()
44 values = [target_host]
45 return self._push_to_outputs(keys, values)
47 def _get_current_host_name(self, server_id):
49 return change_obj_to_dict(self.nova_client.servers.get(server_id))['OS-EXT-SRV-ATTR:host']
51 def _get_migrate_host(self, current_host):
52 hosts = self.nova_client.hosts.list_all()
53 compute_hosts = [a.host for a in hosts if a.service == 'compute']
54 for host in compute_hosts:
55 if host.strip() != current_host.strip():