c269285568
Move these to the central place. There's a large amount of test damage but it's pretty trivial. Change-Id: If581eb7aa463c9dde13714f34f0f1b41549a7130 Signed-off-by: Stephen Finucane <stephenfin@redhat.com>
88 lines
4.2 KiB
Python
88 lines
4.2 KiB
Python
# 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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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 ColdMigrateTargetHostThenLiveMigrateTest(
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test.TestCase, integrated_helpers.InstanceHelperMixin):
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"""Regression test for bug 1797580 introduced in Queens.
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Microversion 2.56 allows cold migrating to a specified target host. The
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compute API sets the requested destination on the request spec with the
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specified target host and then conductor sends that request spec to the
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scheduler to validate the host. Conductor later persists the changes to
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the request spec because it's the resize flow and the flavor could change
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(even though in this case it won't since it's a cold migrate). After
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confirming the resize, if the server is live migrated it will fail during
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scheduling because of the persisted RequestSpec.requested_destination
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from the cold migration, and you can't live migrate to the same host on
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which the instance is currently running.
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This test reproduces the regression and will validate the fix.
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"""
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def setUp(self):
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super(ColdMigrateTargetHostThenLiveMigrateTest, self).setUp()
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self.useFixture(nova_fixtures.RealPolicyFixture())
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self.useFixture(nova_fixtures.NeutronFixture(self))
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self.glance = self.useFixture(nova_fixtures.GlanceFixture(self))
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self.useFixture(func_fixtures.PlacementFixture())
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api_fixture = self.useFixture(nova_fixtures.OSAPIFixture(
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api_version='v2.1'))
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# The admin API is used to get the server details to verify the
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# host on which the server was built and cold/live migrate it.
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self.admin_api = api_fixture.admin_api
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self.api = api_fixture.api
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# Use the latest microversion available to make sure something does
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# not regress in new microversions; cap as necessary.
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self.admin_api.microversion = 'latest'
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self.api.microversion = 'latest'
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self.start_service('conductor')
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self.start_service('scheduler')
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for host in ('host1', 'host2'):
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self.start_service('compute', host=host)
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def test_cold_migrate_target_host_then_live_migrate(self):
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# Create a server, it doesn't matter on which host it builds.
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server = self._build_server(networks='none')
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server = self.api.post_server({'server': server})
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server = self._wait_for_state_change(server, 'ACTIVE')
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original_host = server['OS-EXT-SRV-ATTR:host']
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target_host = 'host1' if original_host == 'host2' else 'host2'
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# Cold migrate the server to the specific target host.
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migrate_req = {'migrate': {'host': target_host}}
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self.admin_api.post_server_action(server['id'], migrate_req)
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server = self._wait_for_state_change(server, 'VERIFY_RESIZE')
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# Confirm the resize so the server stays on the target host.
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confim_req = {'confirmResize': None}
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self.admin_api.post_server_action(server['id'], confim_req)
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server = self._wait_for_state_change(server, 'ACTIVE')
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# Attempt to live migrate the server but don't specify a host so the
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# scheduler has to pick one.
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live_migrate_req = {
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'os-migrateLive': {'host': None, 'block_migration': 'auto'}}
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self.admin_api.post_server_action(server['id'], live_migrate_req)
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server = self._wait_for_state_change(server, 'ACTIVE')
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# The live migration should have been successful and the server is now
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# back on the original host.
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self.assertEqual(original_host, server['OS-EXT-SRV-ATTR:host'])
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