97 lines
3.7 KiB
Python
97 lines
3.7 KiB
Python
# Copyright 2020, Red Hat, Inc. All Rights Reserved.
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#
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# 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.tests.functional.api import client
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from nova.tests.functional import integrated_helpers
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class TestVolAttachCinderReset(integrated_helpers._IntegratedTestBase):
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"""Regression test for bug 1908075.
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This regression test aims to assert if n-api allows a non-multiattached
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volume to be attached to multiple instances after an admin has forcibly
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reset the state of the volume in Cinder.
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"""
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microversion = 'latest'
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def test_volume_attach_after_cinder_reset_state(self):
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volume_id = self.cinder.IMAGE_BACKED_VOL
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# Launch a server and attach a volume
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server_a = self._create_server(networks='none')
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self.api.post_server_volume(
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server_a['id'],
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{'volumeAttachment': {'volumeId': volume_id}}
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)
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# reset-state of the volume within the cinder fixture, we don't model
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# the state of the volume within the fixture so this will have to do.
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del self.cinder.volume_to_attachment[volume_id]
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self.assertNotIn(
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volume_id, self.cinder.volume_ids_for_instance(server_a['id']))
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# Launch a second server and attempt to attach the same volume again
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server_b = self._create_server(networks='none')
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# Assert that attempting to attach this non multiattach volume to
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# another instance is rejected by n-api
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ex = self.assertRaises(
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client.OpenStackApiException,
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self.api.post_server_volume,
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server_b['id'],
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{'volumeAttachment': {'volumeId': volume_id}}
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)
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self.assertEqual(400, ex.response.status_code)
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def test_volume_attach_after_cinder_reset_state_multiattach_volume(self):
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volume_id = self.cinder.MULTIATTACH_VOL
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# Launch a server and attach a volume
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server_a = self._create_server(networks='none')
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self.api.post_server_volume(
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server_a['id'],
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{'volumeAttachment': {'volumeId': volume_id}}
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)
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# reset-state of the volume within the cinder fixture, we don't model
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# the state of the volume within the fixture so this will have to do.
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del self.cinder.volume_to_attachment[volume_id]
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self.assertNotIn(
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volume_id, self.cinder.volume_ids_for_instance(server_a['id']))
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# Launch a second server and attempt to attach the same volume again
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server_b = self._create_server(networks='none')
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# NOTE(lyarwood): Unlike non-multiattach volumes this should always be
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# allowed as we can have multiple active bdms for multiattached volumes
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self.api.post_server_volume(
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server_b['id'],
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{'volumeAttachment': {'volumeId': volume_id}}
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)
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# Assert that we have bdms within Nova still for this attachment
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self.assertEqual(
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volume_id,
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self.api.get_server_volumes(server_a['id'])[0].get('volumeId'))
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self.assertEqual(
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volume_id,
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self.api.get_server_volumes(server_b['id'])[0].get('volumeId'))
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# Assert that the new attachment is the only one in the fixture
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self.assertIn(
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volume_id, self.cinder.volume_ids_for_instance(server_b['id']))
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