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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.
import datetime
from oslo_utils.fixture import uuidsentinel as uuids
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_image(self, metadata=None):
image = {
'id': uuids.stable_rescue_image,
'name': 'fake-image-rescue-property',
'created_at': datetime.datetime(2011, 1, 1, 1, 2, 3),
'updated_at': datetime.datetime(2011, 1, 1, 1, 2, 3),
'deleted_at': None,
'deleted': False,
'status': 'active',
'is_public': False,
'container_format': 'raw',
'disk_format': 'raw',
'size': '25165824',
'min_ram': 0,
'min_disk': 0,
'protected': False,
'visibility': 'public',
'tags': ['tag1', 'tag2'],
'properties': {
'kernel_id': 'nokernel',
'ramdisk_id': 'nokernel',
'hw_rescue_device': 'disk',
'hw_rescue_bus': 'scsi',
},
}
if metadata:
image['properties'].update(metadata)
return self.glance.create(None, image)
def _create_bfv_server(self, metadata=None):
image = self._create_image(metadata=metadata)
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, image
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, image = self._create_bfv_server()
ex = self.assertRaises(client.OpenStackApiException,
self.api.post_server_action, server['id'], {'rescue': {
'rescue_image_ref': image['id']}})
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, image = self._create_bfv_server()
ex = self.assertRaises(client.OpenStackApiException,
self.api.post_server_action, server['id'], {'rescue': {
'rescue_image_ref': image['id']}})
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, image = self._create_bfv_server()
ex = self.assertRaises(client.OpenStackApiException,
self.api.post_server_action, server['id'], {'rescue': {
'rescue_image_ref': image['id']}})
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, image = self._create_bfv_server()
self.api.post_server_action(server['id'], {'rescue': {
'rescue_image_ref': image['id']}})
self._wait_for_state_change(server, 'RESCUE')
class DisallowBFVRescuev287WithoutRescueImageProperties(BFVRescue):
"""Asserts that BFV rescue requests fail with microversion 2.87 (or later)
when the required hw_rescue_device and hw_rescue_bus image properties
are not set on the image.
"""
compute_driver = 'fake.MediumFakeDriver'
microversion = '2.87'
def test_bfv_rescue_failed(self):
server, image = self._create_bfv_server()
# try rescue without hw_rescue_device and hw_rescue_bus properties set
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 AllowBFVRescuev287WithRescueImageProperties(BFVRescue):
"""Asserts that BFV rescue requests pass with microversion 2.87 (or later)
when the required hw_rescue_device and hw_rescue_bus image properties
are set on the image.
"""
compute_driver = 'fake.RescueBFVDriver'
microversion = '2.87'
def test_bfv_rescue_done(self):
server, image = self._create_bfv_server()
self.api.post_server_action(server['id'], {'rescue': {
'rescue_image_ref': image['id']}})
self._wait_for_state_change(server, 'RESCUE')
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