-
Notifications
You must be signed in to change notification settings - Fork 2.5k
/
test_compute.py
13101 lines (11205 loc) · 589 KB
/
test_compute.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# Copyright 2011 Piston Cloud Computing, Inc.
# All Rights Reserved.
# Copyright 2013 Red Hat, Inc.
#
# 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.
"""Tests for compute service."""
import datetime
from itertools import chain
import operator
import sys
import time
import traceback
import ddt
from castellan import key_manager
import mock
from neutronclient.common import exceptions as neutron_exceptions
from oslo_log import log as logging
import oslo_messaging as messaging
from oslo_serialization import base64
from oslo_serialization import jsonutils
from oslo_utils import fixture as utils_fixture
from oslo_utils import timeutils
from oslo_utils import units
from oslo_utils import uuidutils
import six
import testtools
from testtools import matchers as testtools_matchers
import nova
from nova import availability_zones
from nova import block_device
from nova import compute
from nova.compute import api as compute_api
from nova.compute import flavors
from nova.compute import instance_actions
from nova.compute import manager as compute_manager
from nova.compute import power_state
from nova.compute import rpcapi as compute_rpcapi
from nova.compute import task_states
from nova.compute import utils as compute_utils
from nova.compute import vm_states
import nova.conf
from nova.console import type as ctype
from nova import context
from nova import db
from nova import exception
from nova.image import api as image_api
from nova.network import model as network_model
from nova import objects
from nova.objects import block_device as block_device_obj
from nova.objects import fields as obj_fields
from nova.objects import instance as instance_obj
from nova.objects import migrate_data as migrate_data_obj
from nova.scheduler import client as scheduler_client
from nova import test
from nova.tests import fixtures
from nova.tests.unit.compute import eventlet_utils
from nova.tests.unit.compute import fake_resource_tracker
from nova.tests.unit import fake_block_device
from nova.tests.unit import fake_diagnostics
from nova.tests.unit import fake_instance
from nova.tests.unit import fake_network
from nova.tests.unit import fake_network_cache_model
from nova.tests.unit import fake_notifier
from nova.tests.unit import fake_server_actions
from nova.tests.unit.image import fake as fake_image
from nova.tests.unit import matchers
from nova.tests.unit.objects import test_diagnostics
from nova.tests.unit.objects import test_flavor
from nova.tests.unit.objects import test_instance_numa_topology
from nova.tests.unit.objects import test_migration
from nova.tests.unit import utils as test_utils
from nova.tests import uuidsentinel as uuids
from nova import utils
from nova.virt import block_device as driver_block_device
from nova.virt.block_device import DriverVolumeBlockDevice as driver_bdm_volume
from nova.virt import event
from nova.virt import fake
from nova.virt import hardware
from nova.volume import cinder
LOG = logging.getLogger(__name__)
CONF = nova.conf.CONF
FAKE_IMAGE_REF = uuids.image_ref
NODENAME = 'fakenode1'
NODENAME2 = 'fakenode2'
COMPUTE_VERSION_NEW_ATTACH_FLOW = \
compute_api.CINDER_V3_ATTACH_MIN_COMPUTE_VERSION
COMPUTE_VERSION_OLD_ATTACH_FLOW = \
compute_api.CINDER_V3_ATTACH_MIN_COMPUTE_VERSION - 1
def fake_not_implemented(*args, **kwargs):
raise NotImplementedError()
def get_primitive_instance_by_uuid(context, instance_uuid):
"""Helper method to get an instance and then convert it to
a primitive form using jsonutils.
"""
instance = db.instance_get_by_uuid(context, instance_uuid)
return jsonutils.to_primitive(instance)
def unify_instance(instance):
"""Return a dict-like instance for both object-initiated and
model-initiated sources that can reasonably be compared.
"""
newdict = dict()
for k, v in instance.items():
if isinstance(v, datetime.datetime):
# NOTE(danms): DB models and Instance objects have different
# timezone expectations
v = v.replace(tzinfo=None)
elif k == 'fault':
# NOTE(danms): DB models don't have 'fault'
continue
elif k == 'pci_devices':
# NOTE(yonlig.he) pci devices need lazy loading
# fake db does not support it yet.
continue
newdict[k] = v
return newdict
class FakeComputeTaskAPI(object):
def resize_instance(self, context, instance, extra_instance_updates,
scheduler_hint, flavor, reservations):
pass
class BaseTestCase(test.TestCase):
def setUp(self):
super(BaseTestCase, self).setUp()
self.flags(network_manager='nova.network.manager.FlatManager')
fake.set_nodes([NODENAME, NODENAME2])
fake_notifier.stub_notifier(self)
self.addCleanup(fake_notifier.reset)
self.compute = compute_manager.ComputeManager()
# execute power syncing synchronously for testing:
self.compute._sync_power_pool = eventlet_utils.SyncPool()
# override tracker with a version that doesn't need the database:
fake_rt = fake_resource_tracker.FakeResourceTracker(self.compute.host,
self.compute.driver)
self.compute._resource_tracker = fake_rt
def fake_get_compute_nodes_in_db(self, context, **kwargs):
fake_compute_nodes = [{'local_gb': 259,
'uuid': uuids.fake_compute_node,
'vcpus_used': 0,
'deleted': 0,
'hypervisor_type': 'powervm',
'created_at': '2013-04-01T00:27:06.000000',
'local_gb_used': 0,
'updated_at': '2013-04-03T00:35:41.000000',
'hypervisor_hostname': 'fake_phyp1',
'memory_mb_used': 512,
'memory_mb': 131072,
'current_workload': 0,
'vcpus': 16,
'mapped': 1,
'cpu_info': 'ppc64,powervm,3940',
'running_vms': 0,
'free_disk_gb': 259,
'service_id': 7,
'hypervisor_version': 7,
'disk_available_least': 265856,
'deleted_at': None,
'free_ram_mb': 130560,
'metrics': '',
'stats': '',
'numa_topology': '',
'id': 2,
'host': 'fake_phyp1',
'cpu_allocation_ratio': 16.0,
'ram_allocation_ratio': 1.5,
'disk_allocation_ratio': 1.0,
'host_ip': '127.0.0.1'}]
return [objects.ComputeNode._from_db_object(
context, objects.ComputeNode(), cn)
for cn in fake_compute_nodes]
def fake_compute_node_delete(context, compute_node_id):
self.assertEqual(2, compute_node_id)
self.stub_out(
'nova.compute.manager.ComputeManager._get_compute_nodes_in_db',
fake_get_compute_nodes_in_db)
self.stub_out('nova.db.compute_node_delete',
fake_compute_node_delete)
self.compute.update_available_resource(
context.get_admin_context())
self.user_id = 'fake'
self.project_id = 'fake'
self.context = context.RequestContext(self.user_id,
self.project_id)
def fake_show(meh, context, id, **kwargs):
if id:
return {'id': id,
'name': 'fake_name',
'status': 'active',
'properties': {'kernel_id': uuids.kernel_id,
'ramdisk_id': uuids.ramdisk_id,
'something_else': 'meow'}}
else:
raise exception.ImageNotFound(image_id=id)
fake_image.stub_out_image_service(self)
self.stub_out('nova.tests.unit.image.fake._FakeImageService.show',
fake_show)
fake_network.set_stub_network_methods(self)
fake_server_actions.stub_out_action_events(self)
def fake_get_nw_info(cls, ctxt, instance, *args, **kwargs):
return network_model.NetworkInfo()
if CONF.use_neutron:
self.stub_out(
'nova.network.neutronv2.api.API.get_instance_nw_info',
fake_get_nw_info)
self.useFixture(fixtures.NeutronFixture(self))
else:
self.stub_out('nova.network.api.API.get_instance_nw_info',
fake_get_nw_info)
def fake_allocate_for_instance(cls, ctxt, instance,
*args, **kwargs):
self.assertFalse(ctxt.is_admin)
return fake_network.fake_get_instance_nw_info(self, 1, 1)
self.stub_out('nova.network.api.API.allocate_for_instance',
fake_allocate_for_instance)
self.compute_api = compute.API()
# Just to make long lines short
self.rt = self.compute._get_resource_tracker()
self.mock_get_allocs = self.useFixture(
fixtures.fixtures.MockPatch(
'nova.scheduler.client.report.SchedulerReportClient.'
'get_allocations_for_consumer')).mock
self.mock_get_allocs.return_value = {}
def tearDown(self):
ctxt = context.get_admin_context()
fake_image.FakeImageService_reset()
instances = db.instance_get_all(ctxt)
for instance in instances:
db.instance_destroy(ctxt, instance['uuid'])
fake.restore_nodes()
super(BaseTestCase, self).tearDown()
def _fake_instance(self, updates):
return fake_instance.fake_instance_obj(None, **updates)
def _create_fake_instance_obj(self, params=None, type_name='m1.tiny',
services=False, context=None):
flavor = flavors.get_flavor_by_name(type_name)
inst = objects.Instance(context=context or self.context)
inst.vm_state = vm_states.ACTIVE
inst.task_state = None
inst.power_state = power_state.RUNNING
inst.image_ref = FAKE_IMAGE_REF
inst.reservation_id = 'r-fakeres'
inst.user_id = self.user_id
inst.project_id = self.project_id
inst.host = self.compute.host
inst.node = NODENAME
inst.instance_type_id = flavor.id
inst.ami_launch_index = 0
inst.memory_mb = 0
inst.vcpus = 0
inst.root_gb = 0
inst.ephemeral_gb = 0
inst.architecture = obj_fields.Architecture.X86_64
inst.os_type = 'Linux'
inst.system_metadata = (
params and params.get('system_metadata', {}) or {})
inst.locked = False
inst.created_at = timeutils.utcnow()
inst.updated_at = timeutils.utcnow()
inst.launched_at = timeutils.utcnow()
inst.security_groups = objects.SecurityGroupList(objects=[])
inst.keypairs = objects.KeyPairList(objects=[])
inst.flavor = flavor
inst.old_flavor = None
inst.new_flavor = None
if params:
inst.flavor.update(params.pop('flavor', {}))
inst.update(params)
if services:
_create_service_entries(self.context.elevated(),
[['fake_zone', [inst.host]]])
inst.create()
return inst
def _create_instance_type(self, params=None):
"""Create a test instance type."""
if not params:
params = {}
context = self.context.elevated()
inst = {}
inst['name'] = 'm1.small'
inst['memory_mb'] = 1024
inst['vcpus'] = 1
inst['root_gb'] = 20
inst['ephemeral_gb'] = 10
inst['flavorid'] = '1'
inst['swap'] = 2048
inst['rxtx_factor'] = 1
inst.update(params)
return db.flavor_create(context, inst)['id']
def _create_group(self):
values = {'name': 'testgroup',
'description': 'testgroup',
'user_id': self.user_id,
'project_id': self.project_id}
return db.security_group_create(self.context, values)
def _init_aggregate_with_host(self, aggr, aggr_name, zone, host):
if not aggr:
aggr = self.api.create_aggregate(self.context, aggr_name, zone)
aggr = self.api.add_host_to_aggregate(self.context, aggr.id, host)
return aggr
class ComputeVolumeTestCase(BaseTestCase):
def setUp(self):
super(ComputeVolumeTestCase, self).setUp()
self.fetched_attempts = 0
self.instance = {
'id': 'fake',
'uuid': uuids.instance,
'name': 'fake',
'root_device_name': '/dev/vda',
}
self.fake_volume = fake_block_device.FakeDbBlockDeviceDict(
{'source_type': 'volume', 'destination_type': 'volume',
'volume_id': uuids.volume_id, 'device_name': '/dev/vdb',
'connection_info': jsonutils.dumps({})})
self.instance_object = objects.Instance._from_db_object(
self.context, objects.Instance(),
fake_instance.fake_db_instance())
self.stub_out('nova.volume.cinder.API.get', lambda *a, **kw:
{'id': uuids.volume_id, 'size': 4,
'attach_status': 'detached'})
self.stub_out('nova.virt.fake.FakeDriver.get_volume_connector',
lambda *a, **kw: None)
self.stub_out('nova.volume.cinder.API.initialize_connection',
lambda *a, **kw: {})
self.stub_out('nova.volume.cinder.API.terminate_connection',
lambda *a, **kw: None)
self.stub_out('nova.volume.cinder.API.attach',
lambda *a, **kw: None)
self.stub_out('nova.volume.cinder.API.detach',
lambda *a, **kw: None)
self.stub_out('nova.volume.cinder.API.check_availability_zone',
lambda *a, **kw: None)
self.stub_out('eventlet.greenthread.sleep',
lambda *a, **kw: None)
def store_cinfo(context, *args, **kwargs):
self.cinfo = jsonutils.loads(args[-1].get('connection_info'))
return self.fake_volume
self.stub_out('nova.db.block_device_mapping_create', store_cinfo)
self.stub_out('nova.db.block_device_mapping_update', store_cinfo)
@mock.patch.object(compute_utils, 'EventReporter')
def test_attach_volume_serial(self, mock_event):
fake_bdm = objects.BlockDeviceMapping(context=self.context,
**self.fake_volume)
with (mock.patch.object(cinder.API, 'get_volume_encryption_metadata',
return_value={})):
instance = self._create_fake_instance_obj()
self.compute.attach_volume(self.context, instance, bdm=fake_bdm)
self.assertEqual(self.cinfo.get('serial'), uuids.volume_id)
mock_event.assert_called_once_with(
self.context, 'compute_attach_volume', instance.uuid)
@mock.patch.object(compute_utils, 'EventReporter')
@mock.patch('nova.context.RequestContext.elevated')
@mock.patch('nova.compute.utils.notify_about_volume_attach_detach')
def test_attach_volume_raises(self, mock_notify, mock_elevate,
mock_event):
mock_elevate.return_value = self.context
fake_bdm = objects.BlockDeviceMapping(**self.fake_volume)
instance = self._create_fake_instance_obj()
expected_exception = test.TestingException()
def fake_attach(*args, **kwargs):
raise expected_exception
with test.nested(
mock.patch.object(driver_block_device.DriverVolumeBlockDevice,
'attach'),
mock.patch.object(cinder.API, 'unreserve_volume'),
mock.patch.object(objects.BlockDeviceMapping,
'destroy')
) as (mock_attach, mock_unreserve, mock_destroy):
mock_attach.side_effect = fake_attach
self.assertRaises(
test.TestingException, self.compute.attach_volume,
self.context, instance, fake_bdm)
self.assertTrue(mock_unreserve.called)
self.assertTrue(mock_destroy.called)
mock_notify.assert_has_calls([
mock.call(self.context, instance, 'fake-mini',
action='volume_attach', phase='start',
volume_id=uuids.volume_id),
mock.call(self.context, instance, 'fake-mini',
action='volume_attach', phase='error',
volume_id=uuids.volume_id,
exception=expected_exception),
])
mock_event.assert_called_once_with(
self.context, 'compute_attach_volume', instance.uuid)
@mock.patch('nova.context.RequestContext.elevated')
@mock.patch('nova.compute.utils.notify_about_volume_attach_detach')
def test_attach_volume_raises_new_flow(self, mock_notify, mock_elevate):
mock_elevate.return_value = self.context
attachment_id = uuids.attachment_id
fake_bdm = objects.BlockDeviceMapping(**self.fake_volume)
fake_bdm.attachment_id = attachment_id
instance = self._create_fake_instance_obj()
expected_exception = test.TestingException()
def fake_attach(*args, **kwargs):
raise expected_exception
with test.nested(
mock.patch.object(driver_block_device.DriverVolumeBlockDevice,
'attach'),
mock.patch.object(cinder.API, 'attachment_delete'),
mock.patch.object(objects.BlockDeviceMapping,
'destroy')
) as (mock_attach, mock_attachment_delete, mock_destroy):
mock_attach.side_effect = fake_attach
self.assertRaises(
test.TestingException, self.compute.attach_volume,
self.context, instance, fake_bdm)
self.assertTrue(mock_attachment_delete.called)
self.assertTrue(mock_destroy.called)
mock_notify.assert_has_calls([
mock.call(self.context, instance, 'fake-mini',
action='volume_attach', phase='start',
volume_id=uuids.volume_id),
mock.call(self.context, instance, 'fake-mini',
action='volume_attach', phase='error',
volume_id=uuids.volume_id,
exception=expected_exception),
])
@mock.patch.object(compute_utils, 'EventReporter')
def test_detach_volume_api_raises(self, mock_event):
fake_bdm = objects.BlockDeviceMapping(**self.fake_volume)
instance = self._create_fake_instance_obj()
with test.nested(
mock.patch.object(driver_bdm_volume, 'driver_detach'),
mock.patch.object(self.compute.volume_api, 'detach'),
mock.patch.object(objects.BlockDeviceMapping,
'get_by_volume_and_instance'),
mock.patch.object(fake_bdm, 'destroy')
) as (mock_internal_detach, mock_detach, mock_get, mock_destroy):
mock_detach.side_effect = test.TestingException
mock_get.return_value = fake_bdm
self.assertRaises(
test.TestingException, self.compute.detach_volume,
self.context, 'fake', instance, 'fake_id')
self.assertFalse(mock_destroy.called)
mock_event.assert_called_once_with(
self.context, 'compute_detach_volume', instance.uuid)
@mock.patch.object(compute_utils, 'EventReporter')
def test_detach_volume_bdm_destroyed(self, mock_event):
# Assert that the BDM is destroyed given a successful call to detach
# the volume from the instance in Cinder.
fake_bdm = objects.BlockDeviceMapping(**self.fake_volume)
instance = self._create_fake_instance_obj()
with test.nested(
mock.patch.object(driver_bdm_volume, 'driver_detach'),
mock.patch.object(self.compute.volume_api, 'detach'),
mock.patch.object(objects.BlockDeviceMapping,
'get_by_volume_and_instance'),
mock.patch.object(fake_bdm, 'destroy')
) as (mock_internal_detach, mock_detach, mock_get, mock_destroy):
mock_get.return_value = fake_bdm
self.compute.detach_volume(self.context, uuids.volume_id, instance,
uuids.attachment_id)
mock_detach.assert_called_once_with(mock.ANY, uuids.volume_id,
instance.uuid,
uuids.attachment_id)
self.assertTrue(mock_destroy.called)
mock_event.assert_called_once_with(
self.context, 'compute_detach_volume', instance.uuid)
def test_await_block_device_created_too_slow(self):
self.flags(block_device_allocate_retries=2)
self.flags(block_device_allocate_retries_interval=0.1)
def never_get(self, context, vol_id):
return {
'status': 'creating',
'id': 'blah',
}
self.stub_out('nova.volume.cinder.API.get', never_get)
self.assertRaises(exception.VolumeNotCreated,
self.compute._await_block_device_map_created,
self.context, '1')
def test_await_block_device_created_failed(self):
c = self.compute
fake_result = {'status': 'error', 'id': 'blah'}
with mock.patch.object(c.volume_api, 'get',
return_value=fake_result) as fake_get:
self.assertRaises(exception.VolumeNotCreated,
c._await_block_device_map_created,
self.context, '1')
fake_get.assert_called_once_with(self.context, '1')
def test_await_block_device_created_slow(self):
c = self.compute
self.flags(block_device_allocate_retries=4)
self.flags(block_device_allocate_retries_interval=0.1)
def slow_get(cls, context, vol_id):
if self.fetched_attempts < 2:
self.fetched_attempts += 1
return {
'status': 'creating',
'id': 'blah',
}
return {
'status': 'available',
'id': 'blah',
}
self.stub_out('nova.volume.cinder.API.get', slow_get)
attempts = c._await_block_device_map_created(self.context, '1')
self.assertEqual(attempts, 3)
def test_await_block_device_created_retries_negative(self):
c = self.compute
self.flags(block_device_allocate_retries=-1)
self.flags(block_device_allocate_retries_interval=0.1)
def volume_get(self, context, vol_id):
return {
'status': 'available',
'id': 'blah',
}
self.stub_out('nova.volume.cinder.API.get', volume_get)
attempts = c._await_block_device_map_created(self.context, '1')
self.assertEqual(1, attempts)
def test_await_block_device_created_retries_zero(self):
c = self.compute
self.flags(block_device_allocate_retries=0)
self.flags(block_device_allocate_retries_interval=0.1)
def volume_get(self, context, vol_id):
return {
'status': 'available',
'id': 'blah',
}
self.stub_out('nova.volume.cinder.API.get', volume_get)
attempts = c._await_block_device_map_created(self.context, '1')
self.assertEqual(1, attempts)
def test_boot_volume_serial(self):
with (
mock.patch.object(objects.BlockDeviceMapping, 'save')
) as mock_save:
block_device_mapping = [
block_device.BlockDeviceDict({
'id': 1,
'no_device': None,
'source_type': 'volume',
'destination_type': 'volume',
'snapshot_id': None,
'volume_id': uuids.volume_id,
'device_name': '/dev/vdb',
'volume_size': 55,
'delete_on_termination': False,
'attachment_id': None,
})]
bdms = block_device_obj.block_device_make_list_from_dicts(
self.context, block_device_mapping)
prepped_bdm = self.compute._prep_block_device(
self.context, self.instance_object, bdms)
self.assertEqual(2, mock_save.call_count)
volume_driver_bdm = prepped_bdm['block_device_mapping'][0]
self.assertEqual(volume_driver_bdm['connection_info']['serial'],
uuids.volume_id)
def test_boot_volume_metadata(self, metadata=True):
def volume_api_get(*args, **kwargs):
if metadata:
return {
'size': 1,
'volume_image_metadata': {'vol_test_key': 'vol_test_value',
'min_ram': u'128',
'min_disk': u'256',
'size': u'536870912'
},
}
else:
return {}
self.stub_out('nova.volume.cinder.API.get', volume_api_get)
expected_no_metadata = {'min_disk': 0, 'min_ram': 0, 'properties': {},
'size': 0, 'status': 'active'}
block_device_mapping = [{
'id': 1,
'device_name': 'vda',
'no_device': None,
'virtual_name': None,
'snapshot_id': None,
'volume_id': uuids.volume_id,
'delete_on_termination': False,
}]
image_meta = self.compute_api._get_bdm_image_metadata(
self.context, block_device_mapping)
if metadata:
self.assertEqual(image_meta['properties']['vol_test_key'],
'vol_test_value')
self.assertEqual(128, image_meta['min_ram'])
self.assertEqual(256, image_meta['min_disk'])
self.assertEqual(units.Gi, image_meta['size'])
else:
self.assertEqual(expected_no_metadata, image_meta)
# Test it with new-style BDMs
block_device_mapping = [{
'boot_index': 0,
'source_type': 'volume',
'destination_type': 'volume',
'volume_id': uuids.volume_id,
'delete_on_termination': False,
}]
image_meta = self.compute_api._get_bdm_image_metadata(
self.context, block_device_mapping, legacy_bdm=False)
if metadata:
self.assertEqual(image_meta['properties']['vol_test_key'],
'vol_test_value')
self.assertEqual(128, image_meta['min_ram'])
self.assertEqual(256, image_meta['min_disk'])
self.assertEqual(units.Gi, image_meta['size'])
else:
self.assertEqual(expected_no_metadata, image_meta)
def test_boot_volume_no_metadata(self):
self.test_boot_volume_metadata(metadata=False)
def test_boot_image_metadata(self, metadata=True):
def image_api_get(*args, **kwargs):
if metadata:
return {
'properties': {'img_test_key': 'img_test_value'}
}
else:
return {}
self.stub_out('nova.image.api.API.get', image_api_get)
block_device_mapping = [{
'boot_index': 0,
'source_type': 'image',
'destination_type': 'local',
'image_id': "fake-image",
'delete_on_termination': True,
}]
image_meta = self.compute_api._get_bdm_image_metadata(
self.context, block_device_mapping, legacy_bdm=False)
if metadata:
self.assertEqual('img_test_value',
image_meta['properties']['img_test_key'])
else:
self.assertEqual(image_meta, {})
def test_boot_image_no_metadata(self):
self.test_boot_image_metadata(metadata=False)
@mock.patch.object(time, 'time')
@mock.patch.object(objects.InstanceList, 'get_by_host')
@mock.patch.object(utils, 'last_completed_audit_period')
@mock.patch.object(fake.FakeDriver, 'get_all_bw_counters')
def test_poll_bandwidth_usage_not_implemented(self, mock_get_counter,
mock_last, mock_get_host, mock_time):
ctxt = context.get_admin_context()
# Following methods will be called
# Note - time called two more times from Log
mock_last.return_value = (0, 0)
mock_time.side_effect = (10, 20, 21)
mock_get_host.return_value = []
mock_get_counter.side_effect = NotImplementedError
self.flags(bandwidth_poll_interval=1)
# The first call will catch a NotImplementedError,
# then LOG.info something below:
self.compute._poll_bandwidth_usage(ctxt)
self.assertIn('Bandwidth usage not supported '
'by %s' % CONF.compute_driver,
self.stdlog.logger.output)
# A second call won't call the stubs again as the bandwidth
# poll is now disabled
self.compute._poll_bandwidth_usage(ctxt)
mock_get_counter.assert_called_once_with([])
mock_last.assert_called_once_with()
mock_get_host.assert_called_once_with(ctxt, 'fake-mini',
use_slave=True)
@mock.patch.object(objects.InstanceList, 'get_by_host')
@mock.patch.object(objects.BlockDeviceMappingList,
'get_by_instance_uuid')
def test_get_host_volume_bdms(self, mock_get_by_inst, mock_get_by_host):
fake_instance = mock.Mock(uuid=uuids.volume_instance)
mock_get_by_host.return_value = [fake_instance]
volume_bdm = mock.Mock(id=1, is_volume=True)
not_volume_bdm = mock.Mock(id=2, is_volume=False)
mock_get_by_inst.return_value = [volume_bdm, not_volume_bdm]
expected_host_bdms = [{'instance': fake_instance,
'instance_bdms': [volume_bdm]}]
got_host_bdms = self.compute._get_host_volume_bdms('fake-context')
mock_get_by_host.assert_called_once_with('fake-context',
self.compute.host,
use_slave=False)
mock_get_by_inst.assert_called_once_with('fake-context',
uuids.volume_instance,
use_slave=False)
self.assertEqual(expected_host_bdms, got_host_bdms)
@mock.patch.object(utils, 'last_completed_audit_period')
@mock.patch.object(compute_manager.ComputeManager, '_get_host_volume_bdms')
def test_poll_volume_usage_disabled(self, mock_get, mock_last):
# None of the mocks should be called.
ctxt = 'MockContext'
self.flags(volume_usage_poll_interval=0)
self.compute._poll_volume_usage(ctxt)
self.assertFalse(mock_get.called)
self.assertFalse(mock_last.called)
@mock.patch.object(compute_manager.ComputeManager, '_get_host_volume_bdms')
@mock.patch.object(fake.FakeDriver, 'get_all_volume_usage')
def test_poll_volume_usage_returns_no_vols(self, mock_get_usage,
mock_get_bdms):
ctxt = 'MockContext'
# Following methods are called.
mock_get_bdms.return_value = []
self.flags(volume_usage_poll_interval=10)
self.compute._poll_volume_usage(ctxt)
mock_get_bdms.assert_called_once_with(ctxt, use_slave=True)
@mock.patch.object(compute_manager.ComputeManager, '_get_host_volume_bdms')
@mock.patch.object(compute_manager.ComputeManager,
'_update_volume_usage_cache')
@mock.patch.object(fake.FakeDriver, 'get_all_volume_usage')
def test_poll_volume_usage_with_data(self, mock_get_usage, mock_update,
mock_get_bdms):
ctxt = 'MockContext'
mock_get_usage.side_effect = lambda x, y: [3, 4]
# All the mocks are called
mock_get_bdms.return_value = [1, 2]
self.flags(volume_usage_poll_interval=10)
self.compute._poll_volume_usage(ctxt)
mock_get_bdms.assert_called_once_with(ctxt, use_slave=True)
mock_update.assert_called_once_with(ctxt, [3, 4])
@mock.patch('nova.context.RequestContext.elevated')
@mock.patch('nova.compute.utils.notify_about_volume_attach_detach')
@mock.patch.object(objects.BlockDeviceMapping,
'get_by_volume_and_instance')
@mock.patch.object(fake.FakeDriver, 'block_stats')
@mock.patch.object(compute_manager.ComputeManager, '_get_host_volume_bdms')
@mock.patch.object(fake.FakeDriver, 'get_all_volume_usage')
@mock.patch.object(fake.FakeDriver, 'instance_exists')
def test_detach_volume_usage(self, mock_exists, mock_get_all,
mock_get_bdms, mock_stats, mock_get,
mock_notify, mock_elevate):
mock_elevate.return_value = self.context
# Test that detach volume update the volume usage cache table correctly
instance = self._create_fake_instance_obj()
bdm = objects.BlockDeviceMapping(context=self.context,
id=1, device_name='/dev/vdb',
connection_info='{}',
instance_uuid=instance['uuid'],
source_type='volume',
destination_type='volume',
no_device=False,
disk_bus='foo',
device_type='disk',
volume_size=1,
volume_id=uuids.volume_id,
attachment_id=None)
host_volume_bdms = {'id': 1, 'device_name': '/dev/vdb',
'connection_info': '{}', 'instance_uuid': instance['uuid'],
'volume_id': uuids.volume_id}
mock_get.return_value = bdm.obj_clone()
mock_stats.return_value = [1, 30, 1, 20, None]
mock_get_bdms.return_value = host_volume_bdms
mock_get_all.return_value = [{'volume': uuids.volume_id,
'rd_req': 1,
'rd_bytes': 10,
'wr_req': 1,
'wr_bytes': 5,
'instance': instance}]
mock_exists.return_value = True
def fake_get_volume_encryption_metadata(self, context, volume_id):
return {}
self.stub_out('nova.volume.cinder.API.get_volume_encryption_metadata',
fake_get_volume_encryption_metadata)
self.compute.attach_volume(self.context, instance, bdm)
# Poll volume usage & then detach the volume. This will update the
# total fields in the volume usage cache.
self.flags(volume_usage_poll_interval=10)
self.compute._poll_volume_usage(self.context)
# Check that a volume.usage and volume.attach notification was sent
self.assertEqual(2, len(fake_notifier.NOTIFICATIONS))
self.compute.detach_volume(self.context, uuids.volume_id, instance)
# Check that volume.attach, 2 volume.usage, and volume.detach
# notifications were sent
self.assertEqual(4, len(fake_notifier.NOTIFICATIONS))
msg = fake_notifier.NOTIFICATIONS[0]
self.assertEqual('compute.instance.volume.attach', msg.event_type)
msg = fake_notifier.NOTIFICATIONS[2]
self.assertEqual('volume.usage', msg.event_type)
payload = msg.payload
self.assertEqual(instance['uuid'], payload['instance_id'])
self.assertEqual('fake', payload['user_id'])
self.assertEqual('fake', payload['tenant_id'])
self.assertEqual(1, payload['reads'])
self.assertEqual(30, payload['read_bytes'])
self.assertEqual(1, payload['writes'])
self.assertEqual(20, payload['write_bytes'])
self.assertIsNone(payload['availability_zone'])
msg = fake_notifier.NOTIFICATIONS[3]
self.assertEqual('compute.instance.volume.detach', msg.event_type)
# Check the database for the
volume_usages = db.vol_get_usage_by_time(self.context, 0)
self.assertEqual(1, len(volume_usages))
volume_usage = volume_usages[0]
self.assertEqual(0, volume_usage['curr_reads'])
self.assertEqual(0, volume_usage['curr_read_bytes'])
self.assertEqual(0, volume_usage['curr_writes'])
self.assertEqual(0, volume_usage['curr_write_bytes'])
self.assertEqual(1, volume_usage['tot_reads'])
self.assertEqual(30, volume_usage['tot_read_bytes'])
self.assertEqual(1, volume_usage['tot_writes'])
self.assertEqual(20, volume_usage['tot_write_bytes'])
mock_notify.assert_has_calls([
mock.call(self.context, instance, 'fake-mini',
action='volume_attach', phase='start',
volume_id=uuids.volume_id),
mock.call(self.context, instance, 'fake-mini',
action='volume_attach', phase='end',
volume_id=uuids.volume_id),
mock.call(self.context, instance, 'fake-mini',
action='volume_detach', phase='start',
volume_id=uuids.volume_id),
mock.call(self.context, instance, 'fake-mini',
action='volume_detach', phase='end',
volume_id=uuids.volume_id),
])
mock_get.assert_called_once_with(self.context, uuids.volume_id,
instance.uuid)
mock_stats.assert_called_once_with(instance, 'vdb')
mock_get_bdms.assert_called_once_with(self.context, use_slave=True)
mock_get_all(self.context, host_volume_bdms)
mock_exists.assert_called_once_with(mock.ANY)
def test_prepare_image_mapping(self):
swap_size = 1
ephemeral_size = 1
instance_type = {'swap': swap_size,
'ephemeral_gb': ephemeral_size}
mappings = [
{'virtual': 'ami', 'device': 'sda1'},
{'virtual': 'root', 'device': '/dev/sda1'},
{'virtual': 'swap', 'device': 'sdb4'},
{'virtual': 'ephemeral0', 'device': 'sdc1'},
{'virtual': 'ephemeral1', 'device': 'sdc2'},
]
preped_bdm = self.compute_api._prepare_image_mapping(
instance_type, mappings)
expected_result = [
{
'device_name': '/dev/sdb4',
'source_type': 'blank',
'destination_type': 'local',
'device_type': 'disk',
'guest_format': 'swap',
'boot_index': -1,
'volume_size': swap_size
},
{
'device_name': '/dev/sdc1',
'source_type': 'blank',
'destination_type': 'local',
'device_type': 'disk',
'guest_format': CONF.default_ephemeral_format,
'boot_index': -1,
'volume_size': ephemeral_size
},
{
'device_name': '/dev/sdc2',
'source_type': 'blank',
'destination_type': 'local',
'device_type': 'disk',
'guest_format': CONF.default_ephemeral_format,
'boot_index': -1,
'volume_size': ephemeral_size
}
]
for expected, got in zip(expected_result, preped_bdm):
self.assertThat(expected, matchers.IsSubDictOf(got))
@mock.patch.object(objects.Service, 'get_minimum_version',
return_value=17)
def test_validate_bdm(self, mock_get_min_ver):
def fake_get(self, context, res_id):
return {'id': res_id, 'size': 4, 'multiattach': False}
def fake_check_availability_zone(*args, **kwargs):
pass
def fake_reserve_volume(*args, **kwargs):