# 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. import mock from oslo_utils.fixture import uuidsentinel as uuids from nova.compute import rpcapi as compute_rpcapi from nova.conductor.tasks import migrate from nova import context from nova import exception from nova import objects from nova.scheduler.client import query from nova.scheduler.client import report from nova.scheduler import utils as scheduler_utils from nova import test from nova.tests.unit.conductor.test_conductor import FakeContext from nova.tests.unit import fake_flavor from nova.tests.unit import fake_instance class MigrationTaskTestCase(test.NoDBTestCase): def setUp(self): super(MigrationTaskTestCase, self).setUp() self.user_id = 'fake' self.project_id = 'fake' self.context = FakeContext(self.user_id, self.project_id) self.flavor = fake_flavor.fake_flavor_obj(self.context) self.flavor.extra_specs = {'extra_specs': 'fake'} inst = fake_instance.fake_db_instance(image_ref='image_ref', instance_type=self.flavor) inst_object = objects.Instance( flavor=self.flavor, numa_topology=None, pci_requests=None, system_metadata={'image_hw_disk_bus': 'scsi'}) self.instance = objects.Instance._from_db_object( self.context, inst_object, inst, []) self.request_spec = objects.RequestSpec(image=objects.ImageMeta()) self.host_lists = [[objects.Selection(service_host="host1", nodename="node1", cell_uuid=uuids.cell1)]] self.filter_properties = {'limits': {}, 'retry': {'num_attempts': 1, 'hosts': [['host1', 'node1']]}} self.reservations = [] self.clean_shutdown = True _p = mock.patch('nova.compute.utils.heal_reqspec_is_bfv') self.heal_reqspec_is_bfv_mock = _p.start() self.addCleanup(_p.stop) _p = mock.patch('nova.objects.RequestSpec.ensure_network_metadata') self.ensure_network_metadata_mock = _p.start() self.addCleanup(_p.stop) def _generate_task(self): return migrate.MigrationTask(self.context, self.instance, self.flavor, self.request_spec, self.clean_shutdown, compute_rpcapi.ComputeAPI(), query.SchedulerQueryClient(), report.SchedulerReportClient(), host_list=None) @mock.patch.object(objects.MigrationList, 'get_by_filters') @mock.patch('nova.scheduler.client.report.SchedulerReportClient') @mock.patch('nova.objects.ComputeNode.get_by_host_and_nodename') @mock.patch('nova.objects.Migration.save') @mock.patch('nova.objects.Migration.create') @mock.patch('nova.objects.Service.get_minimum_version_multi') @mock.patch('nova.availability_zones.get_host_availability_zone') @mock.patch.object(scheduler_utils, 'setup_instance_group') @mock.patch.object(query.SchedulerQueryClient, 'select_destinations') @mock.patch.object(compute_rpcapi.ComputeAPI, 'prep_resize') def _test_execute(self, prep_resize_mock, sel_dest_mock, sig_mock, az_mock, gmv_mock, cm_mock, sm_mock, cn_mock, rc_mock, gbf_mock, requested_destination=False): sel_dest_mock.return_value = self.host_lists az_mock.return_value = 'myaz' gbf_mock.return_value = objects.MigrationList() if requested_destination: self.request_spec.requested_destination = objects.Destination( host='target_host', node=None) self.request_spec.retry = objects.SchedulerRetries.from_dict( self.context, self.filter_properties['retry']) self.filter_properties.pop('retry') self.filter_properties['requested_destination'] = ( self.request_spec.requested_destination) task = self._generate_task() gmv_mock.return_value = 23 # We just need this hook point to set a uuid on the # migration before we use it for teardown def set_migration_uuid(*a, **k): task._migration.uuid = uuids.migration return mock.MagicMock() # NOTE(danms): It's odd to do this on cn_mock, but it's just because # of when we need to have it set in the flow and where we have an easy # place to find it via self.migration. cn_mock.side_effect = set_migration_uuid task.execute() self.ensure_network_metadata_mock.assert_called_once_with( self.instance) self.heal_reqspec_is_bfv_mock.assert_called_once_with( self.context, self.request_spec, self.instance) sig_mock.assert_called_once_with(self.context, self.request_spec) task.query_client.select_destinations.assert_called_once_with( self.context, self.request_spec, [self.instance.uuid], return_objects=True, return_alternates=True) selection = self.host_lists[0][0] prep_resize_mock.assert_called_once_with( self.context, self.instance, self.request_spec.image, self.flavor, selection.service_host, task._migration, request_spec=self.request_spec, filter_properties=self.filter_properties, node=selection.nodename, clean_shutdown=self.clean_shutdown, host_list=[]) az_mock.assert_called_once_with(self.context, 'host1') self.assertIsNotNone(task._migration) old_flavor = self.instance.flavor new_flavor = self.flavor self.assertEqual(old_flavor.id, task._migration.old_instance_type_id) self.assertEqual(new_flavor.id, task._migration.new_instance_type_id) self.assertEqual('pre-migrating', task._migration.status) self.assertEqual(self.instance.uuid, task._migration.instance_uuid) self.assertEqual(self.instance.host, task._migration.source_compute) self.assertEqual(self.instance.node, task._migration.source_node) if old_flavor.id != new_flavor.id: self.assertEqual('resize', task._migration.migration_type) else: self.assertEqual('migration', task._migration.migration_type) task._migration.create.assert_called_once_with() if requested_destination: self.assertIsNone(self.request_spec.retry) self.assertIn('cell', self.request_spec.requested_destination) self.assertIsNotNone(self.request_spec.requested_destination.cell) def test_execute(self): self._test_execute() def test_execute_with_destination(self): self._test_execute(requested_destination=True) def test_execute_resize(self): self.flavor = self.flavor.obj_clone() self.flavor.id = 3 self._test_execute() @mock.patch.object(objects.MigrationList, 'get_by_filters') @mock.patch('nova.conductor.tasks.migrate.revert_allocation_for_migration') @mock.patch('nova.scheduler.client.report.SchedulerReportClient') @mock.patch('nova.objects.ComputeNode.get_by_host_and_nodename') @mock.patch('nova.objects.Migration.save') @mock.patch('nova.objects.Migration.create') @mock.patch('nova.objects.Service.get_minimum_version_multi') @mock.patch('nova.availability_zones.get_host_availability_zone') @mock.patch.object(scheduler_utils, 'setup_instance_group') @mock.patch.object(query.SchedulerQueryClient, 'select_destinations') @mock.patch.object(compute_rpcapi.ComputeAPI, 'prep_resize') def test_execute_rollback(self, prep_resize_mock, sel_dest_mock, sig_mock, az_mock, gmv_mock, cm_mock, sm_mock, cn_mock, rc_mock, mock_ra, mock_gbf): sel_dest_mock.return_value = self.host_lists az_mock.return_value = 'myaz' task = self._generate_task() gmv_mock.return_value = 23 mock_gbf.return_value = objects.MigrationList() # We just need this hook point to set a uuid on the # migration before we use it for teardown def set_migration_uuid(*a, **k): task._migration.uuid = uuids.migration return mock.MagicMock() # NOTE(danms): It's odd to do this on cn_mock, but it's just because # of when we need to have it set in the flow and where we have an easy # place to find it via self.migration. cn_mock.side_effect = set_migration_uuid prep_resize_mock.side_effect = test.TestingException task._held_allocations = mock.sentinel.allocs self.assertRaises(test.TestingException, task.execute) self.assertIsNotNone(task._migration) task._migration.create.assert_called_once_with() task._migration.save.assert_called_once_with() self.assertEqual('error', task._migration.status) mock_ra.assert_called_once_with(task.context, task._source_cn, task.instance, task._migration) class MigrationTaskAllocationUtils(test.NoDBTestCase): @mock.patch('nova.objects.ComputeNode.get_by_host_and_nodename') def test_replace_allocation_with_migration_no_host(self, mock_cn): mock_cn.side_effect = exception.ComputeHostNotFound(host='host') migration = objects.Migration() instance = objects.Instance(host='host', node='node') self.assertRaises(exception.ComputeHostNotFound, migrate.replace_allocation_with_migration, mock.sentinel.context, instance, migration) mock_cn.assert_called_once_with(mock.sentinel.context, instance.host, instance.node) @mock.patch('nova.scheduler.client.report.SchedulerReportClient.' 'get_allocs_for_consumer') @mock.patch('nova.objects.ComputeNode.get_by_host_and_nodename') def test_replace_allocation_with_migration_no_allocs(self, mock_cn, mock_ga): mock_ga.return_value = {'allocations': {}} migration = objects.Migration(uuid=uuids.migration) instance = objects.Instance(uuid=uuids.instance, host='host', node='node') result = migrate.replace_allocation_with_migration( mock.sentinel.context, instance, migration) self.assertEqual((None, None), result) @mock.patch('nova.scheduler.client.report.SchedulerReportClient.' 'put_allocations') @mock.patch('nova.scheduler.client.report.SchedulerReportClient.' 'get_allocs_for_consumer') @mock.patch('nova.objects.ComputeNode.get_by_host_and_nodename') def test_replace_allocation_with_migration_allocs_fail(self, mock_cn, mock_ga, mock_pa): ctxt = context.get_admin_context() migration = objects.Migration(uuid=uuids.migration) instance = objects.Instance(uuid=uuids.instance, user_id='fake', project_id='fake', host='host', node='node') mock_pa.return_value = False self.assertRaises(exception.NoValidHost, migrate.replace_allocation_with_migration, ctxt, instance, migration)