159 lines
6.1 KiB
Python
159 lines
6.1 KiB
Python
# Copyright 2017 Cloudbase Solutions SRL
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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 time
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from oslo_log import log as logging
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from tempest.lib import exceptions as lib_exc
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from oswin_tempest_plugin.clients import wsman
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from oswin_tempest_plugin import config
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from oswin_tempest_plugin import exceptions
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from oswin_tempest_plugin.tests._mixins import migrate
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from oswin_tempest_plugin.tests._mixins import resize
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from oswin_tempest_plugin.tests import test_base
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CONF = config.CONF
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LOG = logging.getLogger(__name__)
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class HyperVClusterTest(test_base.TestBase,
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migrate._MigrateMixin,
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resize._ResizeMixin):
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"""The test suite for the Hyper-V Cluster.
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This test suite will test the functionality of the Hyper-V Cluster Driver
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in OpenStack. The tests will force a failover on its newly created
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instance, and asserts the following:
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* the instance moves to another host.
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* the nova instance's host is properly updated.
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* the instance's network connection still works.
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* different nova operations can be performed properly.
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This test suite relies on the fact that there are at least 2 compute nodes
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available, that they are clustered, and have WSMan configured.
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The test suite contains the following tests:
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* test_check_clustered_vm
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* test_check_migration
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* test_check_resize
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* test_check_resize_negative
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"""
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_BIGGER_FLAVOR = {'disk': 1}
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_BAD_FLAVOR = {'disk': -1}
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@classmethod
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def skip_checks(cls):
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super(HyperVClusterTest, cls).skip_checks()
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# check if the cluster Tests can be run.
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if not CONF.hyperv.cluster_enabled:
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msg = 'Hyper-V cluster tests are disabled.'
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raise cls.skipException(msg)
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if not CONF.hyperv_host_auth.username:
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msg = ('No Hyper-V host username has been provided. '
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'Skipping cluster tests.')
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raise cls.skipException(msg)
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if not CONF.compute.min_compute_nodes >= 2:
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msg = 'Expected at least 2 compute nodes.'
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raise cls.skipException(msg)
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def _failover_server(self, server_name, host_ip):
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"""Triggers the failover for the given server on the given host."""
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resource_name = "Virtual Machine %s" % server_name
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cmd = "Test-ClusterResourceFailure -Name '%s'" % resource_name
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# NOTE(claudiub): we issue the failover command twice, because on
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# the first failure, the Hyper-V Cluster will prefer the current
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# node, and will try to reactivate the VM on the it, and it will
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# succeed. On the 2nd failure, the VM will failover to another
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# node. Also, there needs to be a delay between commands, so the
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# original failover has time to finish.
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wsman.run_hv_host_wsman_ps(host_ip, cmd)
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time.sleep(CONF.hyperv.failover_sleep_interval)
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wsman.run_hv_host_wsman_ps(host_ip, cmd)
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def _wait_for_failover(self, server, original_host):
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"""Waits for the given server to failover to another host.
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:raises TimeoutException: if the given server did not failover to
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another host within the configured "CONF.hyperv.failover_timeout"
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interval.
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"""
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LOG.debug('Waiting for server %(server)s to failover from '
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'compute node %(host)s',
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dict(server=server['id'], host=original_host))
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start_time = int(time.time())
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timeout = CONF.hyperv.failover_timeout
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while True:
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elapsed_time = int(time.time()) - start_time
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admin_server = self._get_server_as_admin(server)
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current_host = admin_server['OS-EXT-SRV-ATTR:host']
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if current_host != original_host:
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LOG.debug('Server %(server)s failovered from compute node '
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'%(host)s in %(seconds)s seconds.',
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dict(server=server['id'], host=original_host,
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seconds=elapsed_time))
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return
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if elapsed_time >= timeout:
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msg = ('Server %(server)s did not failover in the given '
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'amount of time (%(timeout)s s).')
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raise lib_exc.TimeoutException(
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msg % dict(server=server['id'], timeout=timeout))
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time.sleep(CONF.hyperv.failover_sleep_interval)
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def _get_hypervisor(self, hostname):
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hypervisors = self.admin_hypervisor_client.list_hypervisors(
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detail=True)['hypervisors']
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hypervisor = [h for h in hypervisors if
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h['hypervisor_hostname'] == hostname]
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if not hypervisor:
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raise exceptions.NotFoundException(resource=hostname,
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res_type='hypervisor')
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return hypervisor[0]
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def _get_server_as_admin(self, server):
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# only admins have access to certain instance properties.
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return self.admin_servers_client.show_server(
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server['id'])['server']
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def _create_server(self):
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server_tuple = super(HyperVClusterTest, self)._create_server()
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server = server_tuple.server
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admin_server = self._get_server_as_admin(server)
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server_name = admin_server['OS-EXT-SRV-ATTR:instance_name']
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hostname = admin_server['OS-EXT-SRV-ATTR:host']
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host_ip = self._get_hypervisor(hostname)['host_ip']
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self._failover_server(server_name, host_ip)
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self._wait_for_failover(server, hostname)
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return server_tuple
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def test_clustered_vm(self):
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server_tuple = self._create_server()
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self._check_server_connectivity(server_tuple)
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