141 lines
6.9 KiB
Python
141 lines
6.9 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.api import client as api_client
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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 CrossAZAttachTestCase(test.TestCase,
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integrated_helpers.InstanceHelperMixin):
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"""Contains various scenarios for the [cinder]/cross_az_attach option
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and how it affects interactions between nova and cinder in the API and
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compute service.
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"""
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az = 'us-central-1'
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def setUp(self):
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super(CrossAZAttachTestCase, self).setUp()
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# Use the standard fixtures.
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self.useFixture(nova_fixtures.RealPolicyFixture())
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self.useFixture(nova_fixtures.CinderFixture(self, az=self.az))
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self.useFixture(nova_fixtures.GlanceFixture(self))
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self.useFixture(nova_fixtures.NeutronFixture(self))
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self.useFixture(func_fixtures.PlacementFixture())
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# Start nova controller services.
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self.api = self.useFixture(nova_fixtures.OSAPIFixture(
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api_version='v2.1')).admin_api
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self.start_service('conductor')
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self.start_service('scheduler')
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# Start one compute service and add it to the AZ. This allows us to
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# get past the AvailabilityZoneFilter and build a server.
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self.start_service('compute', host='host1')
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agg_id = self.api.post_aggregate({'aggregate': {
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'name': self.az, 'availability_zone': self.az}})['id']
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self.api.api_post('/os-aggregates/%s/action' % agg_id,
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{'add_host': {'host': 'host1'}})
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def test_cross_az_attach_false_boot_from_volume_no_az_specified(self):
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"""Tests the scenario where [cinder]/cross_az_attach=False and the
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server is created with a pre-existing volume but the server create
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request does not specify an AZ nor is [DEFAULT]/default_schedule_zone
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set. In this case the server is created in the zone specified by the
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volume.
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"""
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self.flags(cross_az_attach=False, group='cinder')
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# Do not need imageRef for boot from volume.
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server = self._build_server(image_uuid='')
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server['block_device_mapping_v2'] = [{
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'source_type': 'volume',
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'destination_type': 'volume',
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'boot_index': 0,
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'uuid': nova_fixtures.CinderFixture.IMAGE_BACKED_VOL
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}]
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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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self.assertEqual(self.az, server['OS-EXT-AZ:availability_zone'])
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def test_cross_az_attach_false_data_volume_no_az_specified(self):
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"""Tests the scenario where [cinder]/cross_az_attach=False and the
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server is created with a pre-existing volume as a non-boot data volume
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but the server create request does not specify an AZ nor is
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[DEFAULT]/default_schedule_zone set. In this case the server is created
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in the zone specified by the non-root data volume.
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"""
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self.flags(cross_az_attach=False, group='cinder')
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server = self._build_server()
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# Note that we use the legacy block_device_mapping parameter rather
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# than block_device_mapping_v2 because that will create an implicit
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# source_type=image, destination_type=local, boot_index=0,
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# uuid=$imageRef which is used as the root BDM and allows our
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# non-boot data volume to be attached during server create. Otherwise
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# we get InvalidBDMBootSequence.
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server['block_device_mapping'] = [{
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# This is a non-bootable volume in the CinderFixture.
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'volume_id': nova_fixtures.CinderFixture.SWAP_OLD_VOL
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}]
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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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self.assertEqual(self.az, server['OS-EXT-AZ:availability_zone'])
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def test_cross_az_attach_false_boot_from_volume_default_zone_match(self):
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"""Tests the scenario where [cinder]/cross_az_attach=False and the
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server is created with a pre-existing volume and the
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[DEFAULT]/default_schedule_zone matches the volume's AZ.
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"""
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self.flags(cross_az_attach=False, group='cinder')
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self.flags(default_schedule_zone=self.az)
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# Do not need imageRef for boot from volume.
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server = self._build_server(image_uuid='')
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server['block_device_mapping_v2'] = [{
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'source_type': 'volume',
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'destination_type': 'volume',
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'boot_index': 0,
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'uuid': nova_fixtures.CinderFixture.IMAGE_BACKED_VOL
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}]
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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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self.assertEqual(self.az, server['OS-EXT-AZ:availability_zone'])
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def test_cross_az_attach_false_bfv_az_specified_mismatch(self):
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"""Negative test where the server is being created in a specific AZ
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that does not match the volume being attached which results in a 400
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error response.
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"""
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self.flags(cross_az_attach=False, group='cinder')
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# Do not need imageRef for boot from volume.
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server = self._build_server(image_uuid='', az='london')
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server['block_device_mapping_v2'] = [{
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'source_type': 'volume',
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'destination_type': 'volume',
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'boot_index': 0,
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'uuid': nova_fixtures.CinderFixture.IMAGE_BACKED_VOL
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}]
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# Use the AZ fixture to fake out the london AZ.
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with nova_fixtures.AvailabilityZoneFixture(zones=['london', self.az]):
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ex = self.assertRaises(api_client.OpenStackApiException,
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self.api.post_server, {'server': server})
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self.assertEqual(400, ex.response.status_code)
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self.assertIn('Server and volumes are not in the same availability '
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'zone. Server is in: london. Volumes are in: %s' %
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self.az, str(ex))
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def test_cross_az_attach_false_no_volumes(self):
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"""A simple test to make sure cross_az_attach=False API validation is
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a noop if there are no volumes in the server create request.
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"""
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self.flags(cross_az_attach=False, group='cinder')
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server = self._create_server(az=self.az)
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self.assertEqual(self.az, server['OS-EXT-AZ:availability_zone'])
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