87 lines
3.5 KiB
Python
87 lines
3.5 KiB
Python
# 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 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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from nova.tests.unit import fake_network
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import nova.tests.unit.image.fake
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from nova.tests.unit import policy_fixture
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class TestRescheduleWithVolumesAttached(
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test.TestCase, integrated_helpers.InstanceHelperMixin):
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"""Regression test for bug 1784353 introduced in Queens.
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This regression test asserts that volume backed instances fail to start
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when rescheduled due to their volume attachments being deleted by cleanup
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code within the compute layer after an initial failure to spawn.
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"""
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def setUp(self):
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super(TestRescheduleWithVolumesAttached, self).setUp()
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# Use the new attach flow fixture for cinder
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cinder_fixture = nova_fixtures.CinderFixtureNewAttachFlow(self)
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self.cinder = self.useFixture(cinder_fixture)
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self.useFixture(policy_fixture.RealPolicyFixture())
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self.useFixture(nova_fixtures.NeutronFixture(self))
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fake_network.set_stub_network_methods(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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self.api = api_fixture.admin_api
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nova.tests.unit.image.fake.stub_out_image_service(self)
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self.addCleanup(nova.tests.unit.image.fake.FakeImageService_reset)
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self.flags(compute_driver='fake.FakeRescheduleDriver')
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self.start_service('conductor')
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self.start_service('scheduler')
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# Start two computes to allow the instance to be rescheduled
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self.host1 = self.start_service('compute', host='host1')
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self.host2 = self.start_service('compute', host='host2')
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self.image_id = self.api.get_images()[0]['id']
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self.flavor_id = self.api.get_flavors()[0]['id']
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def test_reschedule_with_volume_attached(self):
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# Boot a volume backed instance
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volume_id = nova_fixtures.CinderFixture.IMAGE_BACKED_VOL
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server_request = {
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'name': 'server',
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'flavorRef': self.flavor_id,
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'block_device_mapping_v2': [{
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'boot_index': 0,
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'uuid': volume_id,
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'source_type': 'volume',
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'destination_type': 'volume'}],
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}
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server_response = self.api.post_server({'server': server_request})
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server_id = server_response['id']
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self._wait_for_state_change(self.api, server_response, 'ACTIVE')
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attached_volume_ids = self.cinder.volume_ids_for_instance(server_id)
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self.assertIn(volume_id, attached_volume_ids)
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self.assertEqual(1, len(self.cinder.volume_to_attachment))
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# There should only be one attachment record for the volume and
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# instance because the original would have been deleted before
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# rescheduling off the first host.
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self.assertEqual(1, len(self.cinder.volume_to_attachment[volume_id]))
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