62105c150d
Implementation of volume migration for detached volumes with no snapshots. Migration is initiated by an admin API. The scheduler confirms that the specified destination host can accept the volume. The source driver is given the opportunity to migrate the volume on their own. Otherwise, a new volume is created on the destination, both volumes are attached, the data is copied over, the volumes are detached, the source is deleted, and the destination is renamed. In the database, the destination volume's attributes are copied to the source so that the volume-id remains unchanged, and the destination volume row is deleted. DocImpact Implements: bp volume-migration Change-Id: Ib6fcf27051f45e60aa3ba5f599e88c1421db753e
95 lines
3.5 KiB
Python
95 lines
3.5 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012, Red Hat, Inc.
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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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"""
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Unit Tests for cinder.scheduler.rpcapi
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"""
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from oslo.config import cfg
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from cinder import context
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from cinder.openstack.common import rpc
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from cinder.scheduler import rpcapi as scheduler_rpcapi
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from cinder import test
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CONF = cfg.CONF
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class SchedulerRpcAPITestCase(test.TestCase):
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def setUp(self):
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super(SchedulerRpcAPITestCase, self).setUp()
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def tearDown(self):
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super(SchedulerRpcAPITestCase, self).tearDown()
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def _test_scheduler_api(self, method, rpc_method, **kwargs):
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ctxt = context.RequestContext('fake_user', 'fake_project')
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rpcapi = scheduler_rpcapi.SchedulerAPI()
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expected_retval = 'foo' if method == 'call' else None
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expected_version = kwargs.pop('version', rpcapi.RPC_API_VERSION)
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expected_msg = rpcapi.make_msg(method, **kwargs)
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expected_msg['version'] = expected_version
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self.fake_args = None
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self.fake_kwargs = None
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def _fake_rpc_method(*args, **kwargs):
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self.fake_args = args
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self.fake_kwargs = kwargs
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if expected_retval:
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return expected_retval
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self.stubs.Set(rpc, rpc_method, _fake_rpc_method)
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retval = getattr(rpcapi, method)(ctxt, **kwargs)
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self.assertEqual(retval, expected_retval)
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expected_args = [ctxt, CONF.scheduler_topic, expected_msg]
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for arg, expected_arg in zip(self.fake_args, expected_args):
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self.assertEqual(arg, expected_arg)
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def test_update_service_capabilities(self):
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self._test_scheduler_api('update_service_capabilities',
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rpc_method='fanout_cast',
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service_name='fake_name',
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host='fake_host',
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capabilities='fake_capabilities')
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def test_create_volume(self):
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self._test_scheduler_api('create_volume',
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rpc_method='cast',
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topic='topic',
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volume_id='volume_id',
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snapshot_id='snapshot_id',
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image_id='image_id',
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request_spec='fake_request_spec',
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filter_properties='filter_properties',
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version='1.2')
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def test_migrate_volume_to_host(self):
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self._test_scheduler_api('migrate_volume_to_host',
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rpc_method='cast',
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topic='topic',
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volume_id='volume_id',
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host='host',
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force_host_copy=True,
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request_spec='fake_request_spec',
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filter_properties='filter_properties',
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version='1.3')
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