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# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from nova.tests import fixtures as nova_fixtures
from nova.tests.functional.api import client
from nova.tests.functional import integrated_helpers
class BFVRescue(integrated_helpers.ProviderUsageBaseTestCase):
"""Base class for various boot from volume rescue tests."""
def setUp(self):
super(BFVRescue, self).setUp()
self.useFixture(nova_fixtures.CinderFixture(self))
self._start_compute(host='host1')
def _create_bfv_server(self):
server_request = self._build_server(networks=[])
server_request.pop('imageRef')
server_request['block_device_mapping_v2'] = [{
'boot_index': 0,
'uuid': nova_fixtures.CinderFixture.IMAGE_BACKED_VOL,
'source_type': 'volume',
'destination_type': 'volume'}]
server = self.api.post_server({'server': server_request})
self._wait_for_state_change(server, 'ACTIVE')
return server
class DisallowBFVRescuev286(BFVRescue):
"""Asserts that BFV rescue requests fail prior to microversion 2.87.
"""
compute_driver = 'fake.MediumFakeDriver'
microversion = '2.86'
def test_bfv_rescue_not_supported(self):
server = self._create_bfv_server()
ex = self.assertRaises(client.OpenStackApiException,
self.api.post_server_action, server['id'], {'rescue': {
'rescue_image_ref': '155d900f-4e14-4e4c-a73d-069cbf4541e6'}})
self.assertEqual(400, ex.response.status_code)
self.assertIn('Cannot rescue a volume-backed instance',
ex.response.text)
class DisallowBFVRescuev286WithTrait(BFVRescue):
"""Asserts that BFV rescue requests fail prior to microversion 2.87 even
when the required COMPUTE_RESCUE_BFV trait is reported by the compute.
"""
compute_driver = 'fake.RescueBFVDriver'
microversion = '2.86'
def test_bfv_rescue_not_supported(self):
server = self._create_bfv_server()
ex = self.assertRaises(client.OpenStackApiException,
self.api.post_server_action, server['id'], {'rescue': {
'rescue_image_ref': '155d900f-4e14-4e4c-a73d-069cbf4541e6'}})
self.assertEqual(400, ex.response.status_code)
self.assertIn('Cannot rescue a volume-backed instance',
ex.response.text)
class DisallowBFVRescuev287WithoutTrait(BFVRescue):
"""Asserts that BFV rescue requests fail with microversion 2.87 (or later)
when the required COMPUTE_RESCUE_BFV trait is not reported by the compute.
"""
compute_driver = 'fake.MediumFakeDriver'
microversion = '2.87'
def test_bfv_rescue_not_supported(self):
server = self._create_bfv_server()
ex = self.assertRaises(client.OpenStackApiException,
self.api.post_server_action, server['id'], {'rescue': {
'rescue_image_ref': '155d900f-4e14-4e4c-a73d-069cbf4541e6'}})
self.assertEqual(400, ex.response.status_code)
self.assertIn('Host unable to rescue a volume-backed instance',
ex.response.text)
class AllowBFVRescuev287WithTrait(BFVRescue):
"""Asserts that BFV rescue requests pass with microversion 2.87 (or later)
when the required COMPUTE_RESCUE_BFV trait is reported by the compute.
"""
compute_driver = 'fake.RescueBFVDriver'
microversion = '2.87'
def test_bfv_rescue_supported(self):
server = self._create_bfv_server()
self.api.post_server_action(server['id'], {'rescue': {
'rescue_image_ref': '155d900f-4e14-4e4c-a73d-069cbf4541e6'}})
self._wait_for_state_change(server, 'RESCUE')
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