/
servers.py
1387 lines (1232 loc) · 63 KB
/
servers.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 OpenStack Foundation
# Copyright 2011 Piston Cloud Computing, Inc
# All Rights Reserved.
#
# 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 copy
from oslo_log import log as logging
import oslo_messaging as messaging
from oslo_utils import strutils
from oslo_utils import timeutils
from oslo_utils import uuidutils
import six
import webob
from webob import exc
from nova.api.openstack import api_version_request
from nova.api.openstack import common
from nova.api.openstack.compute import helpers
from nova.api.openstack.compute.schemas import servers as schema_servers
from nova.api.openstack.compute.views import servers as views_servers
from nova.api.openstack import wsgi
from nova.api import validation
from nova import block_device
from nova.compute import api as compute
from nova.compute import flavors
from nova.compute import utils as compute_utils
import nova.conf
from nova import context as nova_context
from nova import exception
from nova.i18n import _
from nova.image import api as image_api
from nova import network as network_api
from nova import objects
from nova.policies import servers as server_policies
from nova import utils
TAG_SEARCH_FILTERS = ('tags', 'tags-any', 'not-tags', 'not-tags-any')
PARTIAL_CONSTRUCT_FOR_CELL_DOWN_MIN_VERSION = '2.69'
PAGING_SORTING_PARAMS = ('sort_key', 'sort_dir', 'limit', 'marker')
CONF = nova.conf.CONF
LOG = logging.getLogger(__name__)
INVALID_FLAVOR_IMAGE_EXCEPTIONS = (
exception.BadRequirementEmulatorThreadsPolicy,
exception.CPUThreadPolicyConfigurationInvalid,
exception.FlavorImageConflict,
exception.ImageCPUPinningForbidden,
exception.ImageCPUThreadPolicyForbidden,
exception.ImageNUMATopologyAsymmetric,
exception.ImageNUMATopologyCPUDuplicates,
exception.ImageNUMATopologyCPUOutOfRange,
exception.ImageNUMATopologyCPUsUnassigned,
exception.ImageNUMATopologyForbidden,
exception.ImageNUMATopologyIncomplete,
exception.ImageNUMATopologyMemoryOutOfRange,
exception.ImagePMUConflict,
exception.ImageSerialPortNumberExceedFlavorValue,
exception.ImageSerialPortNumberInvalid,
exception.ImageVCPULimitsRangeExceeded,
exception.ImageVCPUTopologyRangeExceeded,
exception.InvalidCPUAllocationPolicy,
exception.InvalidCPUThreadAllocationPolicy,
exception.InvalidEmulatorThreadsPolicy,
exception.InvalidMachineType,
exception.InvalidNUMANodesNumber,
exception.InvalidRequest,
exception.MemoryPageSizeForbidden,
exception.MemoryPageSizeInvalid,
exception.PciInvalidAlias,
exception.PciRequestAliasNotDefined,
exception.RealtimeConfigurationInvalid,
exception.RealtimeMaskNotFoundOrInvalid,
)
MIN_COMPUTE_MOVE_BANDWIDTH = 39
class ServersController(wsgi.Controller):
"""The Server API base controller class for the OpenStack API."""
_view_builder_class = views_servers.ViewBuilder
@staticmethod
def _add_location(robj):
# Just in case...
if 'server' not in robj.obj:
return robj
link = [l for l in robj.obj['server']['links'] if l['rel'] == 'self']
if link:
robj['Location'] = link[0]['href']
# Convenience return
return robj
def __init__(self):
super(ServersController, self).__init__()
self.compute_api = compute.API()
self.network_api = network_api.API()
@wsgi.expected_errors((400, 403))
@validation.query_schema(schema_servers.query_params_v275, '2.75')
@validation.query_schema(schema_servers.query_params_v273, '2.73', '2.74')
@validation.query_schema(schema_servers.query_params_v266, '2.66', '2.72')
@validation.query_schema(schema_servers.query_params_v226, '2.26', '2.65')
@validation.query_schema(schema_servers.query_params_v21, '2.1', '2.25')
def index(self, req):
"""Returns a list of server names and ids for a given user."""
context = req.environ['nova.context']
context.can(server_policies.SERVERS % 'index')
try:
servers = self._get_servers(req, is_detail=False)
except exception.Invalid as err:
raise exc.HTTPBadRequest(explanation=err.format_message())
return servers
@wsgi.expected_errors((400, 403))
@validation.query_schema(schema_servers.query_params_v275, '2.75')
@validation.query_schema(schema_servers.query_params_v273, '2.73', '2.74')
@validation.query_schema(schema_servers.query_params_v266, '2.66', '2.72')
@validation.query_schema(schema_servers.query_params_v226, '2.26', '2.65')
@validation.query_schema(schema_servers.query_params_v21, '2.1', '2.25')
def detail(self, req):
"""Returns a list of server details for a given user."""
context = req.environ['nova.context']
context.can(server_policies.SERVERS % 'detail')
try:
servers = self._get_servers(req, is_detail=True)
except exception.Invalid as err:
raise exc.HTTPBadRequest(explanation=err.format_message())
return servers
@staticmethod
def _is_cell_down_supported(req, search_opts):
cell_down_support = api_version_request.is_supported(
req, min_version=PARTIAL_CONSTRUCT_FOR_CELL_DOWN_MIN_VERSION)
if cell_down_support:
# NOTE(tssurya): Minimal constructs would be returned from the down
# cells if cell_down_support is True, however if filtering, sorting
# or paging is requested by the user, then cell_down_support should
# be made False and the down cells should be skipped (depending on
# CONF.api.list_records_by_skipping_down_cells) as there is no
# way to return correct results for the down cells in those
# situations due to missing keys/information.
# NOTE(tssurya): Since there is a chance that
# remove_invalid_options function could have removed the paging and
# sorting parameters, we add the additional check for that from the
# request.
pag_sort = any(
ps in req.GET.keys() for ps in PAGING_SORTING_PARAMS)
# NOTE(tssurya): ``nova list --all_tenants`` is the only
# allowed filter exception when handling down cells.
filters = list(search_opts.keys()) not in ([u'all_tenants'], [])
if pag_sort or filters:
cell_down_support = False
return cell_down_support
def _get_servers(self, req, is_detail):
"""Returns a list of servers, based on any search options specified."""
search_opts = {}
search_opts.update(req.GET)
context = req.environ['nova.context']
remove_invalid_options(context, search_opts,
self._get_server_search_options(req))
cell_down_support = self._is_cell_down_supported(req, search_opts)
for search_opt in search_opts:
if (search_opt in
schema_servers.JOINED_TABLE_QUERY_PARAMS_SERVERS.keys() or
search_opt.startswith('_')):
msg = _("Invalid filter field: %s.") % search_opt
raise exc.HTTPBadRequest(explanation=msg)
# Verify search by 'status' contains a valid status.
# Convert it to filter by vm_state or task_state for compute_api.
# For non-admin user, vm_state and task_state are filtered through
# remove_invalid_options function, based on value of status field.
# Set value to vm_state and task_state to make search simple.
search_opts.pop('status', None)
if 'status' in req.GET.keys():
statuses = req.GET.getall('status')
states = common.task_and_vm_state_from_status(statuses)
vm_state, task_state = states
if not vm_state and not task_state:
if api_version_request.is_supported(req, min_version='2.38'):
msg = _('Invalid status value')
raise exc.HTTPBadRequest(explanation=msg)
return {'servers': []}
search_opts['vm_state'] = vm_state
# When we search by vm state, task state will return 'default'.
# So we don't need task_state search_opt.
if 'default' not in task_state:
search_opts['task_state'] = task_state
if 'changes-since' in search_opts:
try:
search_opts['changes-since'] = timeutils.parse_isotime(
search_opts['changes-since'])
except ValueError:
# NOTE: This error handling is for V2.0 API to pass the
# experimental jobs at the gate. V2.1 API covers this case
# with JSON-Schema and it is a hard burden to apply it to
# v2.0 API at this time.
msg = _("Invalid filter field: changes-since.")
raise exc.HTTPBadRequest(explanation=msg)
if 'changes-before' in search_opts:
try:
search_opts['changes-before'] = timeutils.parse_isotime(
search_opts['changes-before'])
changes_since = search_opts.get('changes-since')
if changes_since and search_opts['changes-before'] < \
search_opts['changes-since']:
msg = _('The value of changes-since must be'
' less than or equal to changes-before.')
raise exc.HTTPBadRequest(explanation=msg)
except ValueError:
msg = _("Invalid filter field: changes-before.")
raise exc.HTTPBadRequest(explanation=msg)
# By default, compute's get_all() will return deleted instances.
# If an admin hasn't specified a 'deleted' search option, we need
# to filter out deleted instances by setting the filter ourselves.
# ... Unless 'changes-since' or 'changes-before' is specified,
# because those will return recently deleted instances according to
# the API spec.
if 'deleted' not in search_opts:
if 'changes-since' not in search_opts and \
'changes-before' not in search_opts:
# No 'changes-since' or 'changes-before', so we only
# want non-deleted servers
search_opts['deleted'] = False
else:
# Convert deleted filter value to a valid boolean.
# Return non-deleted servers if an invalid value
# is passed with deleted filter.
search_opts['deleted'] = strutils.bool_from_string(
search_opts['deleted'], default=False)
if search_opts.get("vm_state") == ['deleted']:
if context.is_admin:
search_opts['deleted'] = True
else:
msg = _("Only administrators may list deleted instances")
raise exc.HTTPForbidden(explanation=msg)
if api_version_request.is_supported(req, min_version='2.26'):
for tag_filter in TAG_SEARCH_FILTERS:
if tag_filter in search_opts:
search_opts[tag_filter] = search_opts[
tag_filter].split(',')
all_tenants = common.is_all_tenants(search_opts)
# use the boolean from here on out so remove the entry from search_opts
# if it's present.
# NOTE(tssurya): In case we support handling down cells
# we need to know further down the stack whether the 'all_tenants'
# filter was passed with the true value or not, so we pass the flag
# further down the stack.
search_opts.pop('all_tenants', None)
if 'locked' in search_opts:
search_opts['locked'] = common.is_locked(search_opts)
elevated = None
if all_tenants:
if is_detail:
context.can(server_policies.SERVERS % 'detail:get_all_tenants')
else:
context.can(server_policies.SERVERS % 'index:get_all_tenants')
elevated = context.elevated()
else:
# As explained in lp:#1185290, if `all_tenants` is not passed
# we must ignore the `tenant_id` search option.
search_opts.pop('tenant_id', None)
if context.project_id:
search_opts['project_id'] = context.project_id
else:
search_opts['user_id'] = context.user_id
limit, marker = common.get_limit_and_marker(req)
sort_keys, sort_dirs = common.get_sort_params(req.params)
blacklist = schema_servers.SERVER_LIST_IGNORE_SORT_KEY
if api_version_request.is_supported(req, min_version='2.73'):
blacklist = schema_servers.SERVER_LIST_IGNORE_SORT_KEY_V273
sort_keys, sort_dirs = remove_invalid_sort_keys(
context, sort_keys, sort_dirs, blacklist, ('host', 'node'))
expected_attrs = []
if is_detail:
if api_version_request.is_supported(req, '2.16'):
expected_attrs.append('services')
if api_version_request.is_supported(req, '2.26'):
expected_attrs.append("tags")
if api_version_request.is_supported(req, '2.63'):
expected_attrs.append("trusted_certs")
if api_version_request.is_supported(req, '2.73'):
expected_attrs.append("system_metadata")
# merge our expected attrs with what the view builder needs for
# showing details
expected_attrs = self._view_builder.get_show_expected_attrs(
expected_attrs)
try:
instance_list = self.compute_api.get_all(elevated or context,
search_opts=search_opts, limit=limit, marker=marker,
expected_attrs=expected_attrs, sort_keys=sort_keys,
sort_dirs=sort_dirs, cell_down_support=cell_down_support,
all_tenants=all_tenants)
except exception.MarkerNotFound:
msg = _('marker [%s] not found') % marker
raise exc.HTTPBadRequest(explanation=msg)
except exception.FlavorNotFound:
LOG.debug("Flavor '%s' could not be found ",
search_opts['flavor'])
instance_list = objects.InstanceList()
if is_detail:
instance_list._context = context
instance_list.fill_faults()
response = self._view_builder.detail(
req, instance_list, cell_down_support=cell_down_support)
else:
response = self._view_builder.index(
req, instance_list, cell_down_support=cell_down_support)
return response
def _get_server(self, context, req, instance_uuid, is_detail=False,
cell_down_support=False):
"""Utility function for looking up an instance by uuid.
:param context: request context for auth
:param req: HTTP request.
:param instance_uuid: UUID of the server instance to get
:param is_detail: True if you plan on showing the details of the
instance in the response, False otherwise.
:param cell_down_support: True if the API (and caller) support
returning a minimal instance
construct if the relevant cell is
down.
"""
expected_attrs = ['flavor', 'numa_topology']
if is_detail:
if api_version_request.is_supported(req, '2.26'):
expected_attrs.append("tags")
if api_version_request.is_supported(req, '2.63'):
expected_attrs.append("trusted_certs")
expected_attrs = self._view_builder.get_show_expected_attrs(
expected_attrs)
instance = common.get_instance(self.compute_api, context,
instance_uuid,
expected_attrs=expected_attrs,
cell_down_support=cell_down_support)
return instance
@staticmethod
def _validate_network_id(net_id, network_uuids):
"""Validates that a requested network id.
This method performs two checks:
1. That the network id is in the proper uuid format.
2. That the network is not a duplicate when using nova-network.
:param net_id: The network id to validate.
:param network_uuids: A running list of requested network IDs that have
passed validation already.
:raises: webob.exc.HTTPBadRequest if validation fails
"""
if not uuidutils.is_uuid_like(net_id):
# NOTE(mriedem): Neutron would allow a network id with a br- prefix
# back in Folsom so continue to honor that.
# TODO(mriedem): Need to figure out if this is still a valid case.
br_uuid = net_id.split('-', 1)[-1]
if not uuidutils.is_uuid_like(br_uuid):
msg = _("Bad networks format: network uuid is "
"not in proper format (%s)") % net_id
raise exc.HTTPBadRequest(explanation=msg)
# duplicate networks are allowed only for neutron v2.0
if net_id in network_uuids and not utils.is_neutron():
expl = _("Duplicate networks (%s) are not allowed") % net_id
raise exc.HTTPBadRequest(explanation=expl)
def _get_requested_networks(self, requested_networks):
"""Create a list of requested networks from the networks attribute."""
# Starting in the 2.37 microversion, requested_networks is either a
# list or a string enum with value 'auto' or 'none'. The auto/none
# values are verified via jsonschema so we don't check them again here.
if isinstance(requested_networks, six.string_types):
return objects.NetworkRequestList(
objects=[objects.NetworkRequest(
network_id=requested_networks)])
networks = []
network_uuids = []
for network in requested_networks:
request = objects.NetworkRequest()
try:
# fixed IP address is optional
# if the fixed IP address is not provided then
# it will use one of the available IP address from the network
request.address = network.get('fixed_ip', None)
request.port_id = network.get('port', None)
request.tag = network.get('tag', None)
if request.port_id:
request.network_id = None
if not utils.is_neutron():
# port parameter is only for neutron v2.0
msg = _("Unknown argument: port")
raise exc.HTTPBadRequest(explanation=msg)
if request.address is not None:
msg = _("Specified Fixed IP '%(addr)s' cannot be used "
"with port '%(port)s': the two cannot be "
"specified together.") % {
"addr": request.address,
"port": request.port_id}
raise exc.HTTPBadRequest(explanation=msg)
else:
request.network_id = network['uuid']
self._validate_network_id(
request.network_id, network_uuids)
network_uuids.append(request.network_id)
networks.append(request)
except KeyError as key:
expl = _('Bad network format: missing %s') % key
raise exc.HTTPBadRequest(explanation=expl)
except TypeError:
expl = _('Bad networks format')
raise exc.HTTPBadRequest(explanation=expl)
return objects.NetworkRequestList(objects=networks)
@wsgi.expected_errors(404)
def show(self, req, id):
"""Returns server details by server id."""
context = req.environ['nova.context']
context.can(server_policies.SERVERS % 'show')
cell_down_support = api_version_request.is_supported(
req, min_version=PARTIAL_CONSTRUCT_FOR_CELL_DOWN_MIN_VERSION)
show_server_groups = api_version_request.is_supported(
req, min_version='2.71')
instance = self._get_server(
context, req, id, is_detail=True,
cell_down_support=cell_down_support)
return self._view_builder.show(
req, instance, cell_down_support=cell_down_support,
show_server_groups=show_server_groups)
@staticmethod
def _process_bdms_for_create(
context, target, server_dict, create_kwargs):
"""Processes block_device_mapping(_v2) req parameters for server create
:param context: The nova auth request context
:param target: The target dict for ``context.can`` policy checks
:param server_dict: The POST /servers request body "server" entry
:param create_kwargs: dict that gets populated by this method and
passed to nova.comptue.api.API.create()
:raises: webob.exc.HTTPBadRequest if the request parameters are invalid
:raises: nova.exception.Forbidden if a policy check fails
"""
block_device_mapping_legacy = server_dict.get('block_device_mapping',
[])
block_device_mapping_v2 = server_dict.get('block_device_mapping_v2',
[])
if block_device_mapping_legacy and block_device_mapping_v2:
expl = _('Using different block_device_mapping syntaxes '
'is not allowed in the same request.')
raise exc.HTTPBadRequest(explanation=expl)
if block_device_mapping_legacy:
for bdm in block_device_mapping_legacy:
if 'delete_on_termination' in bdm:
bdm['delete_on_termination'] = strutils.bool_from_string(
bdm['delete_on_termination'])
create_kwargs[
'block_device_mapping'] = block_device_mapping_legacy
# Sets the legacy_bdm flag if we got a legacy block device mapping.
create_kwargs['legacy_bdm'] = True
elif block_device_mapping_v2:
# Have to check whether --image is given, see bug 1433609
image_href = server_dict.get('imageRef')
image_uuid_specified = image_href is not None
try:
block_device_mapping = [
block_device.BlockDeviceDict.from_api(bdm_dict,
image_uuid_specified)
for bdm_dict in block_device_mapping_v2]
except exception.InvalidBDMFormat as e:
raise exc.HTTPBadRequest(explanation=e.format_message())
create_kwargs['block_device_mapping'] = block_device_mapping
# Unset the legacy_bdm flag if we got a block device mapping.
create_kwargs['legacy_bdm'] = False
block_device_mapping = create_kwargs.get("block_device_mapping")
if block_device_mapping:
context.can(server_policies.SERVERS % 'create:attach_volume',
target)
def _process_networks_for_create(
self, context, target, server_dict, create_kwargs):
"""Processes networks request parameter for server create
:param context: The nova auth request context
:param target: The target dict for ``context.can`` policy checks
:param server_dict: The POST /servers request body "server" entry
:param create_kwargs: dict that gets populated by this method and
passed to nova.comptue.api.API.create()
:raises: webob.exc.HTTPBadRequest if the request parameters are invalid
:raises: nova.exception.Forbidden if a policy check fails
"""
requested_networks = server_dict.get('networks', None)
if requested_networks is not None:
requested_networks = self._get_requested_networks(
requested_networks)
# Skip policy check for 'create:attach_network' if there is no
# network allocation request.
if requested_networks and len(requested_networks) and \
not requested_networks.no_allocate:
context.can(server_policies.SERVERS % 'create:attach_network',
target)
create_kwargs['requested_networks'] = requested_networks
@staticmethod
def _process_hosts_for_create(
context, target, server_dict, create_kwargs, host, node):
"""Processes hosts request parameter for server create
:param context: The nova auth request context
:param target: The target dict for ``context.can`` policy checks
:param server_dict: The POST /servers request body "server" entry
:param create_kwargs: dict that gets populated by this method and
passed to nova.comptue.api.API.create()
:param host: Forced host of availability_zone
:param node: Forced node of availability_zone
:raise: webob.exc.HTTPBadRequest if the request parameters are invalid
:raise: nova.exception.Forbidden if a policy check fails
"""
requested_host = server_dict.get('host')
requested_hypervisor_hostname = server_dict.get('hypervisor_hostname')
if requested_host or requested_hypervisor_hostname:
# If the policy check fails, this will raise Forbidden exception.
context.can(server_policies.REQUESTED_DESTINATION, target=target)
if host or node:
msg = _("One mechanism with host and/or "
"hypervisor_hostname and another mechanism "
"with zone:host:node are mutually exclusive.")
raise exc.HTTPBadRequest(explanation=msg)
create_kwargs['requested_host'] = requested_host
create_kwargs['requested_hypervisor_hostname'] = (
requested_hypervisor_hostname)
@wsgi.response(202)
@wsgi.expected_errors((400, 403, 409))
@validation.schema(schema_servers.base_create_v20, '2.0', '2.0')
@validation.schema(schema_servers.base_create, '2.1', '2.18')
@validation.schema(schema_servers.base_create_v219, '2.19', '2.31')
@validation.schema(schema_servers.base_create_v232, '2.32', '2.32')
@validation.schema(schema_servers.base_create_v233, '2.33', '2.36')
@validation.schema(schema_servers.base_create_v237, '2.37', '2.41')
@validation.schema(schema_servers.base_create_v242, '2.42', '2.51')
@validation.schema(schema_servers.base_create_v252, '2.52', '2.56')
@validation.schema(schema_servers.base_create_v257, '2.57', '2.62')
@validation.schema(schema_servers.base_create_v263, '2.63', '2.66')
@validation.schema(schema_servers.base_create_v267, '2.67', '2.73')
@validation.schema(schema_servers.base_create_v274, '2.74')
def create(self, req, body):
"""Creates a new server for a given user."""
context = req.environ['nova.context']
server_dict = body['server']
password = self._get_server_admin_password(server_dict)
name = common.normalize_name(server_dict['name'])
description = name
if api_version_request.is_supported(req, min_version='2.19'):
description = server_dict.get('description')
# Arguments to be passed to instance create function
create_kwargs = {}
create_kwargs['user_data'] = server_dict.get('user_data')
# NOTE(alex_xu): The v2.1 API compat mode, we strip the spaces for
# keypair create. But we didn't strip spaces at here for
# backward-compatible some users already created keypair and name with
# leading/trailing spaces by legacy v2 API.
create_kwargs['key_name'] = server_dict.get('key_name')
create_kwargs['config_drive'] = server_dict.get('config_drive')
security_groups = server_dict.get('security_groups')
if security_groups is not None:
create_kwargs['security_groups'] = [
sg['name'] for sg in security_groups if sg.get('name')]
create_kwargs['security_groups'] = list(
set(create_kwargs['security_groups']))
scheduler_hints = {}
if 'os:scheduler_hints' in body:
scheduler_hints = body['os:scheduler_hints']
elif 'OS-SCH-HNT:scheduler_hints' in body:
scheduler_hints = body['OS-SCH-HNT:scheduler_hints']
create_kwargs['scheduler_hints'] = scheduler_hints
# min_count and max_count are optional. If they exist, they may come
# in as strings. Verify that they are valid integers and > 0.
# Also, we want to default 'min_count' to 1, and default
# 'max_count' to be 'min_count'.
min_count = int(server_dict.get('min_count', 1))
max_count = int(server_dict.get('max_count', min_count))
if min_count > max_count:
msg = _('min_count must be <= max_count')
raise exc.HTTPBadRequest(explanation=msg)
create_kwargs['min_count'] = min_count
create_kwargs['max_count'] = max_count
availability_zone = server_dict.pop("availability_zone", None)
if api_version_request.is_supported(req, min_version='2.52'):
create_kwargs['tags'] = server_dict.get('tags')
helpers.translate_attributes(helpers.CREATE,
server_dict, create_kwargs)
target = {
'project_id': context.project_id,
'user_id': context.user_id,
'availability_zone': availability_zone}
context.can(server_policies.SERVERS % 'create', target)
# Skip policy check for 'create:trusted_certs' if no trusted
# certificate IDs were provided.
trusted_certs = server_dict.get('trusted_image_certificates', None)
if trusted_certs:
create_kwargs['trusted_certs'] = trusted_certs
context.can(server_policies.SERVERS % 'create:trusted_certs',
target=target)
parse_az = self.compute_api.parse_availability_zone
try:
availability_zone, host, node = parse_az(context,
availability_zone)
except exception.InvalidInput as err:
raise exc.HTTPBadRequest(explanation=six.text_type(err))
if host or node:
context.can(server_policies.SERVERS % 'create:forced_host', {})
if api_version_request.is_supported(req, min_version='2.74'):
self._process_hosts_for_create(context, target, server_dict,
create_kwargs, host, node)
self._process_bdms_for_create(
context, target, server_dict, create_kwargs)
image_uuid = self._image_from_req_data(server_dict, create_kwargs)
self._process_networks_for_create(
context, target, server_dict, create_kwargs)
flavor_id = self._flavor_id_from_req_data(body)
try:
inst_type = flavors.get_flavor_by_flavor_id(
flavor_id, ctxt=context, read_deleted="no")
supports_multiattach = common.supports_multiattach_volume(req)
supports_port_resource_request = \
common.supports_port_resource_request(req)
(instances, resv_id) = self.compute_api.create(context,
inst_type,
image_uuid,
display_name=name,
display_description=description,
availability_zone=availability_zone,
forced_host=host, forced_node=node,
metadata=server_dict.get('metadata', {}),
admin_password=password,
check_server_group_quota=True,
supports_multiattach=supports_multiattach,
supports_port_resource_request=supports_port_resource_request,
**create_kwargs)
except (exception.QuotaError,
exception.PortLimitExceeded) as error:
raise exc.HTTPForbidden(
explanation=error.format_message())
except exception.ImageNotFound:
msg = _("Can not find requested image")
raise exc.HTTPBadRequest(explanation=msg)
except exception.KeypairNotFound:
msg = _("Invalid key_name provided.")
raise exc.HTTPBadRequest(explanation=msg)
except exception.ConfigDriveInvalidValue:
msg = _("Invalid config_drive provided.")
raise exc.HTTPBadRequest(explanation=msg)
except (exception.BootFromVolumeRequiredForZeroDiskFlavor,
exception.ExternalNetworkAttachForbidden) as error:
raise exc.HTTPForbidden(explanation=error.format_message())
except messaging.RemoteError as err:
msg = "%(err_type)s: %(err_msg)s" % {'err_type': err.exc_type,
'err_msg': err.value}
raise exc.HTTPBadRequest(explanation=msg)
except UnicodeDecodeError as error:
msg = "UnicodeError: %s" % error
raise exc.HTTPBadRequest(explanation=msg)
except (exception.ImageNotActive,
exception.ImageBadRequest,
exception.ImageNotAuthorized,
exception.FixedIpNotFoundForAddress,
exception.FlavorNotFound,
exception.FlavorDiskTooSmall,
exception.FlavorMemoryTooSmall,
exception.InvalidMetadata,
exception.InvalidVolume,
exception.MultiplePortsNotApplicable,
exception.InvalidFixedIpAndMaxCountRequest,
exception.InstanceUserDataMalformed,
exception.PortNotFound,
exception.FixedIpAlreadyInUse,
exception.SecurityGroupNotFound,
exception.PortRequiresFixedIP,
exception.NetworkRequiresSubnet,
exception.NetworkNotFound,
exception.InvalidBDM,
exception.InvalidBDMSnapshot,
exception.InvalidBDMVolume,
exception.InvalidBDMImage,
exception.InvalidBDMBootSequence,
exception.InvalidBDMLocalsLimit,
exception.InvalidBDMVolumeNotBootable,
exception.InvalidBDMEphemeralSize,
exception.InvalidBDMFormat,
exception.InvalidBDMSwapSize,
exception.VolumeTypeNotFound,
exception.AutoDiskConfigDisabledByImage,
exception.InstanceGroupNotFound,
exception.SnapshotNotFound,
exception.UnableToAutoAllocateNetwork,
exception.MultiattachNotSupportedOldMicroversion,
exception.CertificateValidationFailed,
exception.CreateWithPortResourceRequestOldVersion,
exception.ComputeHostNotFound) as error:
raise exc.HTTPBadRequest(explanation=error.format_message())
except INVALID_FLAVOR_IMAGE_EXCEPTIONS as error:
raise exc.HTTPBadRequest(explanation=error.format_message())
except (exception.PortInUse,
exception.InstanceExists,
exception.NetworkAmbiguous,
exception.NoUniqueMatch) as error:
raise exc.HTTPConflict(explanation=error.format_message())
# If the caller wanted a reservation_id, return it
if server_dict.get('return_reservation_id', False):
return wsgi.ResponseObject({'reservation_id': resv_id})
server = self._view_builder.create(req, instances[0])
if CONF.api.enable_instance_password:
server['server']['adminPass'] = password
robj = wsgi.ResponseObject(server)
return self._add_location(robj)
def _delete(self, context, req, instance_uuid):
instance = self._get_server(context, req, instance_uuid)
context.can(server_policies.SERVERS % 'delete',
target={'user_id': instance.user_id,
'project_id': instance.project_id})
if CONF.reclaim_instance_interval:
try:
self.compute_api.soft_delete(context, instance)
except exception.InstanceInvalidState:
# Note(yufang521247): instance which has never been active
# is not allowed to be soft_deleted. Thus we have to call
# delete() to clean up the instance.
self.compute_api.delete(context, instance)
else:
self.compute_api.delete(context, instance)
@wsgi.expected_errors(404)
@validation.schema(schema_servers.base_update_v20, '2.0', '2.0')
@validation.schema(schema_servers.base_update, '2.1', '2.18')
@validation.schema(schema_servers.base_update_v219, '2.19')
def update(self, req, id, body):
"""Update server then pass on to version-specific controller."""
ctxt = req.environ['nova.context']
update_dict = {}
instance = self._get_server(ctxt, req, id, is_detail=True)
ctxt.can(server_policies.SERVERS % 'update',
target={'user_id': instance.user_id,
'project_id': instance.project_id})
show_server_groups = api_version_request.is_supported(
req, min_version='2.71')
server = body['server']
if 'name' in server:
update_dict['display_name'] = common.normalize_name(
server['name'])
if 'description' in server:
# This is allowed to be None (remove description)
update_dict['display_description'] = server['description']
helpers.translate_attributes(helpers.UPDATE, server, update_dict)
try:
instance = self.compute_api.update_instance(ctxt, instance,
update_dict)
# NOTE(gmann): Starting from microversion 2.75, PUT and Rebuild
# API response will show all attributes like GET /servers API.
show_all_attributes = api_version_request.is_supported(
req, min_version='2.75')
extend_address = show_all_attributes
show_AZ = show_all_attributes
show_config_drive = show_all_attributes
show_keypair = show_all_attributes
show_srv_usg = show_all_attributes
show_sec_grp = show_all_attributes
show_extended_status = show_all_attributes
show_extended_volumes = show_all_attributes
# NOTE(gmann): Below attributes need to be added in response
# if respective policy allows.So setting these as None
# to perform the policy check in view builder.
show_extended_attr = None if show_all_attributes else False
show_host_status = None if show_all_attributes else False
return self._view_builder.show(
req, instance,
extend_address=extend_address,
show_AZ=show_AZ,
show_config_drive=show_config_drive,
show_extended_attr=show_extended_attr,
show_host_status=show_host_status,
show_keypair=show_keypair,
show_srv_usg=show_srv_usg,
show_sec_grp=show_sec_grp,
show_extended_status=show_extended_status,
show_extended_volumes=show_extended_volumes,
show_server_groups=show_server_groups)
except exception.InstanceNotFound:
msg = _("Instance could not be found")
raise exc.HTTPNotFound(explanation=msg)
# NOTE(gmann): Returns 204 for backwards compatibility but should be 202
# for representing async API as this API just accepts the request and
# request hypervisor driver to complete the same in async mode.
@wsgi.response(204)
@wsgi.expected_errors((400, 404, 409))
@wsgi.action('confirmResize')
def _action_confirm_resize(self, req, id, body):
context = req.environ['nova.context']
context.can(server_policies.SERVERS % 'confirm_resize')
instance = self._get_server(context, req, id)
try:
self.compute_api.confirm_resize(context, instance)
except exception.MigrationNotFound:
msg = _("Instance has not been resized.")
raise exc.HTTPBadRequest(explanation=msg)
except exception.InstanceIsLocked as e:
raise exc.HTTPConflict(explanation=e.format_message())
except exception.InstanceInvalidState as state_error:
common.raise_http_conflict_for_instance_invalid_state(state_error,
'confirmResize', id)
@wsgi.response(202)
@wsgi.expected_errors((400, 404, 409))
@wsgi.action('revertResize')
def _action_revert_resize(self, req, id, body):
context = req.environ['nova.context']
context.can(server_policies.SERVERS % 'revert_resize')
instance = self._get_server(context, req, id)
try:
self.compute_api.revert_resize(context, instance)
except exception.MigrationNotFound:
msg = _("Instance has not been resized.")
raise exc.HTTPBadRequest(explanation=msg)
except exception.FlavorNotFound:
msg = _("Flavor used by the instance could not be found.")
raise exc.HTTPBadRequest(explanation=msg)
except exception.InstanceIsLocked as e:
raise exc.HTTPConflict(explanation=e.format_message())
except exception.InstanceInvalidState as state_error:
common.raise_http_conflict_for_instance_invalid_state(state_error,
'revertResize', id)
@wsgi.response(202)
@wsgi.expected_errors((404, 409))
@wsgi.action('reboot')
@validation.schema(schema_servers.reboot)
def _action_reboot(self, req, id, body):
reboot_type = body['reboot']['type'].upper()
context = req.environ['nova.context']
context.can(server_policies.SERVERS % 'reboot')
instance = self._get_server(context, req, id)
try:
self.compute_api.reboot(context, instance, reboot_type)
except exception.InstanceIsLocked as e:
raise exc.HTTPConflict(explanation=e.format_message())
except exception.InstanceInvalidState as state_error:
common.raise_http_conflict_for_instance_invalid_state(state_error,
'reboot', id)
def _resize(self, req, instance_id, flavor_id, **kwargs):
"""Begin the resize process with given instance/flavor."""
context = req.environ["nova.context"]
instance = self._get_server(context, req, instance_id)
context.can(server_policies.SERVERS % 'resize',
target={'user_id': instance.user_id,
'project_id': instance.project_id})
if common.instance_has_port_with_resource_request(
context, instance_id, self.network_api):
# TODO(gibi): Remove when nova only supports compute newer than
# Train
source_service = objects.Service.get_by_host_and_binary(
context, instance.host, 'nova-compute')
if source_service.version < MIN_COMPUTE_MOVE_BANDWIDTH:
msg = _("The resize action on a server with ports having "
"resource requests, like a port with a QoS "
"minimum bandwidth policy, is not yet supported.")
raise exc.HTTPConflict(explanation=msg)
try:
self.compute_api.resize(context, instance, flavor_id, **kwargs)
except exception.QuotaError as error:
raise exc.HTTPForbidden(
explanation=error.format_message())
except (exception.InstanceIsLocked,
exception.AllocationMoveFailed) as e:
raise exc.HTTPConflict(explanation=e.format_message())
except exception.InstanceInvalidState as state_error:
common.raise_http_conflict_for_instance_invalid_state(state_error,
'resize', instance_id)
except exception.ImageNotAuthorized:
msg = _("You are not authorized to access the image "
"the instance was started with.")
raise exc.HTTPUnauthorized(explanation=msg)
except exception.ImageNotFound:
msg = _("Image that the instance was started "
"with could not be found.")
raise exc.HTTPBadRequest(explanation=msg)
except (exception.AutoDiskConfigDisabledByImage,
exception.CannotResizeDisk,
exception.CannotResizeToSameFlavor,
exception.FlavorNotFound,
exception.NoValidHost) as e:
raise exc.HTTPBadRequest(explanation=e.format_message())
except INVALID_FLAVOR_IMAGE_EXCEPTIONS as e:
raise exc.HTTPBadRequest(explanation=e.format_message())
except exception.Invalid:
msg = _("Invalid instance image.")
raise exc.HTTPBadRequest(explanation=msg)
@wsgi.response(204)
@wsgi.expected_errors((404, 409))
def delete(self, req, id):
"""Destroys a server."""
try:
self._delete(req.environ['nova.context'], req, id)
except exception.InstanceNotFound:
msg = _("Instance could not be found")
raise exc.HTTPNotFound(explanation=msg)
except (exception.InstanceIsLocked,
exception.AllocationDeleteFailed) as e:
raise exc.HTTPConflict(explanation=e.format_message())
except exception.InstanceInvalidState as state_error:
common.raise_http_conflict_for_instance_invalid_state(state_error,
'delete', id)