97 lines
3.8 KiB
Python
97 lines
3.8 KiB
Python
# Copyright 2017 Ericsson
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from nova import context
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from nova import objects
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from nova import test
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from nova.tests import fixtures as nova_fixtures
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from nova.tests.functional import fixtures as func_fixtures
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from nova.tests.functional import integrated_helpers
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class IgnoreDeletedServerGroupsTest(
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test.TestCase, integrated_helpers.InstanceHelperMixin,
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):
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"""Regression test for bug 1890244
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If instance are created as member of server groups it
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should be possibel to evacuate them if the server groups are
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deleted prior to the host failure.
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"""
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def setUp(self):
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super().setUp()
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# Stub out external dependencies.
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self.useFixture(nova_fixtures.NeutronFixture(self))
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self.useFixture(nova_fixtures.GlanceFixture(self))
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self.useFixture(func_fixtures.PlacementFixture())
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# Start nova controller services.
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api_fixture = self.useFixture(nova_fixtures.OSAPIFixture(
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api_version='v2.1'))
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self.api = api_fixture.admin_api
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self.start_service('conductor')
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# Use a custom weigher to make sure that we have a predictable
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# scheduling sort order.
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self.useFixture(nova_fixtures.HostNameWeigherFixture())
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self.start_service('scheduler')
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# Start two computes, one where the server will be created and another
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# where we'll evacuate it to.
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self.src = self._start_compute('host1')
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self.dest = self._start_compute('host2')
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self.notifier = self.useFixture(
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nova_fixtures.NotificationFixture(self)
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)
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def test_evacuate_after_group_delete(self):
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# Create an anti-affinity group for the server.
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body = {
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'server_group': {
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'name': 'test-group',
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'policies': ['anti-affinity']
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}
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}
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group_id = self.api.api_post(
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'/os-server-groups', body).body['server_group']['id']
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# Create a server in the group which should land on host1 due to our
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# custom weigher.
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body = {'server': self._build_server()}
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body['os:scheduler_hints'] = {'group': group_id}
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server = self.api.post_server(body)
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server = self._wait_for_state_change(server, 'ACTIVE')
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self.assertEqual('host1', server['OS-EXT-SRV-ATTR:host'])
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# Down the source compute to enable the evacuation
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self.api.microversion = '2.11' # Cap for the force-down call.
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self.api.force_down_service('host1', 'nova-compute', True)
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self.api.microversion = 'latest'
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self.src.stop()
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# assert the server currently has a server group
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reqspec = objects.RequestSpec.get_by_instance_uuid(
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context.get_admin_context(), server['id'])
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self.assertIsNotNone(reqspec.instance_group)
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self.assertIn('group', reqspec.scheduler_hints)
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# then delete it so that we need to clean it up on evac
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self.api.api_delete(f'/os-server-groups/{group_id}')
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# Initiate evacuation
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server = self._evacuate_server(
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server, expected_host='host2', expected_migration_status='done'
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)
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reqspec = objects.RequestSpec.get_by_instance_uuid(
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context.get_admin_context(), server['id'])
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self.assertIsNone(reqspec.instance_group)
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self.assertNotIn('group', reqspec.scheduler_hints)
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