-
Notifications
You must be signed in to change notification settings - Fork 38.7k
/
kube_features.go
1144 lines (896 loc) · 39.1 KB
/
kube_features.go
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 2017 The Kubernetes Authors.
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.
*/
package features
import (
"k8s.io/apimachinery/pkg/util/runtime"
genericfeatures "k8s.io/apiserver/pkg/features"
utilfeature "k8s.io/apiserver/pkg/util/feature"
"k8s.io/component-base/featuregate"
)
const (
// Every feature gate should add method here following this template:
//
// // owner: @username
// // kep: https://kep.k8s.io/NNN
// // alpha: v1.X
// MyFeature featuregate.Feature = "MyFeature"
//
// Feature gates should be listed in alphabetical, case-sensitive
// (upper before any lower case character) order. This reduces the risk
// of code conflicts because changes are more likely to be scattered
// across the file.
// owner: @bswartz
// alpha: v1.18
// beta: v1.24
//
// Enables usage of any object for volume data source in PVCs
AnyVolumeDataSource featuregate.Feature = "AnyVolumeDataSource"
// owner: @nabokihms
// alpha: v1.26
//
// Enables API to get self subject attributes after authentication.
APISelfSubjectReview featuregate.Feature = "APISelfSubjectReview"
// owner: @tallclair
// beta: v1.4
AppArmor featuregate.Feature = "AppArmor"
// owner: @szuecs
// alpha: v1.12
//
// Enable nodes to change CPUCFSQuotaPeriod
CPUCFSQuotaPeriod featuregate.Feature = "CustomCPUCFSQuotaPeriod"
// owner: @ConnorDoyle, @fromanirh (only for GA graduation)
// alpha: v1.8
// beta: v1.10
// GA: v1.26
//
// Alternative container-level CPU affinity policies.
CPUManager featuregate.Feature = "CPUManager"
// owner: @fromanirh
// alpha: v1.23
// beta: see below.
//
// Allow fine-tuning of cpumanager policies, experimental, alpha-quality options
// Per https://groups.google.com/g/kubernetes-sig-architecture/c/Nxsc7pfe5rw/m/vF2djJh0BAAJ
// We want to avoid a proliferation of feature gates. This feature gate:
// - will guard *a group* of cpumanager options whose quality level is alpha.
// - will never graduate to beta or stable.
// See https://groups.google.com/g/kubernetes-sig-architecture/c/Nxsc7pfe5rw/m/vF2djJh0BAAJ
// for details about the removal of this feature gate.
CPUManagerPolicyAlphaOptions featuregate.Feature = "CPUManagerPolicyAlphaOptions"
// owner: @fromanirh
// beta: v1.23
// beta: see below.
//
// Allow fine-tuning of cpumanager policies, experimental, beta-quality options
// Per https://groups.google.com/g/kubernetes-sig-architecture/c/Nxsc7pfe5rw/m/vF2djJh0BAAJ
// We want to avoid a proliferation of feature gates. This feature gate:
// - will guard *a group* of cpumanager options whose quality level is beta.
// - is thus *introduced* as beta
// - will never graduate to stable.
// See https://groups.google.com/g/kubernetes-sig-architecture/c/Nxsc7pfe5rw/m/vF2djJh0BAAJ
// for details about the removal of this feature gate.
CPUManagerPolicyBetaOptions featuregate.Feature = "CPUManagerPolicyBetaOptions"
// owner: @fromanirh
// alpha: v1.22
// beta: v1.23
//
// Allow the usage of options to fine-tune the cpumanager policies.
CPUManagerPolicyOptions featuregate.Feature = "CPUManagerPolicyOptions"
// owner: @pohly
// alpha: v1.14
// beta: v1.16
// GA: v1.25
//
// Enables CSI Inline volumes support for pods
CSIInlineVolume featuregate.Feature = "CSIInlineVolume"
// owner: @davidz627
// alpha: v1.14
// beta: v1.17
//
// Enables the in-tree storage to CSI Plugin migration feature.
CSIMigration featuregate.Feature = "CSIMigration"
// owner: @leakingtapan
// alpha: v1.14
// beta: v1.17
// GA: v1.25
//
// Enables the AWS EBS in-tree driver to AWS EBS CSI Driver migration feature.
CSIMigrationAWS featuregate.Feature = "CSIMigrationAWS"
// owner: @andyzhangx
// alpha: v1.15
// beta: v1.19
// GA: v1.24
//
// Enables the Azure Disk in-tree driver to Azure Disk Driver migration feature.
CSIMigrationAzureDisk featuregate.Feature = "CSIMigrationAzureDisk"
// owner: @andyzhangx
// alpha: v1.15
// beta: v1.21
// GA: v1.26
//
// Enables the Azure File in-tree driver to Azure File Driver migration feature.
CSIMigrationAzureFile featuregate.Feature = "CSIMigrationAzureFile"
// owner: @davidz627
// alpha: v1.14
// beta: v1.17
// GA: 1.25
//
// Enables the GCE PD in-tree driver to GCE CSI Driver migration feature.
CSIMigrationGCE featuregate.Feature = "CSIMigrationGCE"
// owner: @trierra
// alpha: v1.23
//
// Enables the Portworx in-tree driver to Portworx migration feature.
CSIMigrationPortworx featuregate.Feature = "CSIMigrationPortworx"
// owner: @humblec
// alpha: v1.23
//
// Enables the RBD in-tree driver to RBD CSI Driver migration feature.
CSIMigrationRBD featuregate.Feature = "CSIMigrationRBD"
// owner: @divyenpatel
// beta: v1.19 (requires: vSphere vCenter/ESXi Version: 7.0u2, HW Version: VM version 15)
// GA: 1.26
// Enables the vSphere in-tree driver to vSphere CSI Driver migration feature.
CSIMigrationvSphere featuregate.Feature = "CSIMigrationvSphere"
// owner: @humblec, @zhucan
// kep: https://kep.k8s.io/3171
// alpha: v1.25
//
// Enables SecretRef field in CSI NodeExpandVolume request.
CSINodeExpandSecret featuregate.Feature = "CSINodeExpandSecret"
// owner: @pohly
// alpha: v1.19
// beta: v1.21
// GA: v1.24
//
// Enables tracking of available storage capacity that CSI drivers provide.
CSIStorageCapacity featuregate.Feature = "CSIStorageCapacity"
// owner: @fengzixu
// alpha: v1.21
//
// Enables kubelet to detect CSI volume condition and send the event of the abnormal volume to the corresponding pod that is using it.
CSIVolumeHealth featuregate.Feature = "CSIVolumeHealth"
// owner: @adrianreber
// kep: https://kep.k8s.io/2008
// alpha: v1.25
//
// Enables container Checkpoint support in the kubelet
ContainerCheckpoint featuregate.Feature = "ContainerCheckpoint"
// owner: @bhcleek @wzshiming
// GA: v1.25
//
// Normalize HttpGet URL and Header passing for lifecycle handlers with probers.
ConsistentHTTPGetHandlers featuregate.Feature = "ConsistentHTTPGetHandlers"
// owner: @jiahuif
// alpha: v1.21
// beta: v1.22
// GA: v1.24
//
// Enables Leader Migration for kube-controller-manager and cloud-controller-manager
ControllerManagerLeaderMigration featuregate.Feature = "ControllerManagerLeaderMigration"
// owner: @deejross, @soltysh
// kep: https://kep.k8s.io/3140
// alpha: v1.24
// beta: v1.25
//
// Enables support for time zones in CronJobs.
CronJobTimeZone featuregate.Feature = "CronJobTimeZone"
// owner: @smarterclayton
// alpha: v1.21
// beta: v1.22
// GA: v1.25
// DaemonSets allow workloads to maintain availability during update per node
DaemonSetUpdateSurge featuregate.Feature = "DaemonSetUpdateSurge"
// owner: @gnufied, @verult, @bertinatto
// alpha: v1.22
// beta: v1.23
// GA: v1.26
// If supported by the CSI driver, delegates the role of applying FSGroup to
// the driver by passing FSGroup through the NodeStageVolume and
// NodePublishVolume calls.
DelegateFSGroupToCSIDriver featuregate.Feature = "DelegateFSGroupToCSIDriver"
// owner: @jiayingz, @swatisehgal (for GA graduation)
// alpha: v1.8
// beta: v1.10
// GA: v1.26
//
// Enables support for Device Plugins
DevicePlugins featuregate.Feature = "DevicePlugins"
// owner: @RenaudWasTaken @dashpole
// alpha: v1.19
// beta: v1.20
// ga: v1.25
//
// Disables Accelerator Metrics Collected by Kubelet
DisableAcceleratorUsageMetrics featuregate.Feature = "DisableAcceleratorUsageMetrics"
// owner: @andrewsykim
// alpha: v1.22
//
// Disable any functionality in kube-apiserver, kube-controller-manager and kubelet related to the `--cloud-provider` component flag.
DisableCloudProviders featuregate.Feature = "DisableCloudProviders"
// owner: @andrewsykim
// alpha: v1.23
//
// Disable in-tree functionality in kubelet to authenticate to cloud provider container registries for image pull credentials.
DisableKubeletCloudCredentialProviders featuregate.Feature = "DisableKubeletCloudCredentialProviders"
// owner: @derekwaynecarr
// alpha: v1.20
// beta: v1.21 (off by default until 1.22)
//
// Enables usage of hugepages-<size> in downward API.
DownwardAPIHugePages featuregate.Feature = "DownwardAPIHugePages"
// owner: @andrewsykim
// kep: https://kep.k8s.io/1672
// alpha: v1.20
// beta: v1.22
// GA: v1.26
//
// Enable Terminating condition in Endpoint Slices.
EndpointSliceTerminatingCondition featuregate.Feature = "EndpointSliceTerminatingCondition"
// owner: @verb
// alpha: v1.16
// beta: v1.23
// GA: v1.25
//
// Allows running an ephemeral container in pod namespaces to troubleshoot a running pod.
EphemeralContainers featuregate.Feature = "EphemeralContainers"
// owner: @harche
// kep: http://kep.k8s.io/3386
// alpha: v1.25
//
// Allows using event-driven PLEG (pod lifecycle event generator) through kubelet
// which avoids frequent relisting of containers which helps optimize performance.
EventedPLEG featuregate.Feature = "EventedPLEG"
// owner: @andrewsykim @SergeyKanzhelev
// GA: v1.20
//
// Ensure kubelet respects exec probe timeouts. Feature gate exists in-case existing workloads
// may depend on old behavior where exec probe timeouts were ignored.
// Lock to default and remove after v1.22 based on user feedback that should be reflected in KEP #1972 update
ExecProbeTimeout featuregate.Feature = "ExecProbeTimeout"
// owner: @gnufied
// alpha: v1.14
// beta: v1.16
// GA: 1.24
// Ability to expand CSI volumes
ExpandCSIVolumes featuregate.Feature = "ExpandCSIVolumes"
// owner: @mlmhl @gnufied
// beta: v1.15
// GA: 1.24
// Ability to expand persistent volumes' file system without unmounting volumes.
ExpandInUsePersistentVolumes featuregate.Feature = "ExpandInUsePersistentVolumes"
// owner: @gnufied
// beta: v1.11
// GA: 1.24
// Ability to Expand persistent volumes
ExpandPersistentVolumes featuregate.Feature = "ExpandPersistentVolumes"
// owner: @gjkim42
// kep: https://kep.k8s.io/2595
// alpha: v1.22
// beta: v1.26
//
// Enables apiserver and kubelet to allow up to 32 DNSSearchPaths and up to 2048 DNSSearchListChars.
ExpandedDNSConfig featuregate.Feature = "ExpandedDNSConfig"
// owner: @pweil-
// alpha: v1.5
//
// Default userns=host for containers that are using other host namespaces, host mounts, the pod
// contains a privileged container, or specific non-namespaced capabilities (MKNOD, SYS_MODULE,
// SYS_TIME). This should only be enabled if user namespace remapping is enabled in the docker daemon.
ExperimentalHostUserNamespaceDefaultingGate featuregate.Feature = "ExperimentalHostUserNamespaceDefaulting"
// owner: @yuzhiquan, @bowei, @PxyUp, @SergeyKanzhelev
// kep: https://kep.k8s.io/2727
// alpha: v1.23
// beta: v1.24
//
// Enables GRPC probe method for {Liveness,Readiness,Startup}Probe.
GRPCContainerProbe featuregate.Feature = "GRPCContainerProbe"
// owner: @bobbypage
// alpha: v1.20
// beta: v1.21
// Adds support for kubelet to detect node shutdown and gracefully terminate pods prior to the node being shutdown.
GracefulNodeShutdown featuregate.Feature = "GracefulNodeShutdown"
// owner: @wzshiming
// alpha: v1.23
// beta: v1.24
// Make the kubelet use shutdown configuration based on pod priority values for graceful shutdown.
GracefulNodeShutdownBasedOnPodPriority featuregate.Feature = "GracefulNodeShutdownBasedOnPodPriority"
// owner: @arjunrn @mwielgus @josephburnett
// alpha: v1.20
//
// Add support for the HPA to scale based on metrics from individual containers
// in target pods
HPAContainerMetrics featuregate.Feature = "HPAContainerMetrics"
// owner: @dxist
// alpha: v1.16
//
// Enables support of HPA scaling to zero pods when an object or custom metric is configured.
HPAScaleToZero featuregate.Feature = "HPAScaleToZero"
// owner: @deepakkinni @xing-yang
// kep: https://kep.k8s.io/2680
// alpha: v1.23
//
// Honor Persistent Volume Reclaim Policy when it is "Delete" irrespective of PV-PVC
// deletion ordering.
HonorPVReclaimPolicy featuregate.Feature = "HonorPVReclaimPolicy"
// owner: @ravig
// alpha: v1.23
// beta: v1.24
// GA: v1.25
// IdentifyPodOS allows user to specify OS on which they'd like the Pod run. The user should still set the nodeSelector
// with appropriate `kubernetes.io/os` label for scheduler to identify appropriate node for the pod to run.
IdentifyPodOS featuregate.Feature = "IdentifyPodOS"
// owner: @leakingtapan
// alpha: v1.21
//
// Disables the AWS EBS in-tree driver.
InTreePluginAWSUnregister featuregate.Feature = "InTreePluginAWSUnregister"
// owner: @andyzhangx
// alpha: v1.21
//
// Disables the Azure Disk in-tree driver.
InTreePluginAzureDiskUnregister featuregate.Feature = "InTreePluginAzureDiskUnregister"
// owner: @andyzhangx
// alpha: v1.21
//
// Disables the Azure File in-tree driver.
InTreePluginAzureFileUnregister featuregate.Feature = "InTreePluginAzureFileUnregister"
// owner: @Jiawei0227
// alpha: v1.21
//
// Disables the GCE PD in-tree driver.
InTreePluginGCEUnregister featuregate.Feature = "InTreePluginGCEUnregister"
// owner: @trierra
// alpha: v1.23
//
// Disables the Portworx in-tree driver.
InTreePluginPortworxUnregister featuregate.Feature = "InTreePluginPortworxUnregister"
// owner: @humblec
// alpha: v1.23
//
// Disables the RBD in-tree driver.
InTreePluginRBDUnregister featuregate.Feature = "InTreePluginRBDUnregister"
// owner: @divyenpatel
// alpha: v1.21
//
// Disables the vSphere in-tree driver.
InTreePluginvSphereUnregister featuregate.Feature = "InTreePluginvSphereUnregister"
// owner: @danwinship
// kep: https://kep.k8s.io/3178
// alpha: v1.25
//
// Causes kubelet to no longer create legacy IPTables rules
IPTablesOwnershipCleanup featuregate.Feature = "IPTablesOwnershipCleanup"
// owner: @mimowo
// kep: https://kep.k8s.io/3329
// alpha: v1.25
//
// Allow users to specify handling of pod failures based on container exit codes
// and pod conditions.
JobPodFailurePolicy featuregate.Feature = "JobPodFailurePolicy"
// owner: @ahg
// beta: v1.23
//
// Allow updating node scheduling directives in the pod template of jobs. Specifically,
// node affinity, selector and tolerations. This is allowed only for suspended jobs
// that have never been unsuspended before.
JobMutableNodeSchedulingDirectives featuregate.Feature = "JobMutableNodeSchedulingDirectives"
// owner: @alculquicondor
// alpha: v1.23
// beta: v1.24
//
// Track the number of pods with Ready condition in the Job status.
JobReadyPods featuregate.Feature = "JobReadyPods"
// owner: @alculquicondor
// alpha: v1.22
// beta: v1.23
// stable: v1.26
//
// Track Job completion without relying on Pod remaining in the cluster
// indefinitely. Pod finalizers, in addition to a field in the Job status
// allow the Job controller to keep track of Pods that it didn't account for
// yet.
JobTrackingWithFinalizers featuregate.Feature = "JobTrackingWithFinalizers"
// owner: @andrewsykim @adisky @ndixita
// alpha: v1.20
// beta: v1.24
// GA: v1.26
//
// Enable kubelet exec plugins for image pull credentials.
KubeletCredentialProviders featuregate.Feature = "KubeletCredentialProviders"
// owner: @AkihiroSuda
// alpha: v1.22
//
// Enables support for running kubelet in a user namespace.
// The user namespace has to be created before running kubelet.
// All the node components such as CRI need to be running in the same user namespace.
KubeletInUserNamespace featuregate.Feature = "KubeletInUserNamespace"
// owner: @dashpole
// alpha: v1.13
// beta: v1.15
//
// Enables the kubelet's pod resources grpc endpoint
KubeletPodResources featuregate.Feature = "KubeletPodResources"
// owner: @fromanirh
// alpha: v1.21
// beta: v1.23
// Enable POD resources API to return allocatable resources
KubeletPodResourcesGetAllocatable featuregate.Feature = "KubeletPodResourcesGetAllocatable"
// owner: @sallyom
// kep: https://kep.k8s.io/2832
// alpha: v1.25
//
// Add support for distributed tracing in the kubelet
KubeletTracing featuregate.Feature = "KubeletTracing"
// owner: @zshihang
// kep: https://kep.k8s.io/2800
// beta: v1.24
//
// Stop auto-generation of secret-based service account tokens.
LegacyServiceAccountTokenNoAutoGeneration featuregate.Feature = "LegacyServiceAccountTokenNoAutoGeneration"
// owner: @zshihang
// kep: http://kep.k8s.io/2800
// alpha: v1.25
//
// Enables tracking of secret-based service account tokens usage.
LegacyServiceAccountTokenTracking featuregate.Feature = "LegacyServiceAccountTokenTracking"
// owner: @jinxu
// beta: v1.10
// stable: v1.25
//
// Support local ephemeral storage types for local storage capacity isolation feature.
LocalStorageCapacityIsolation featuregate.Feature = "LocalStorageCapacityIsolation"
// owner: @RobertKrawitz
// alpha: v1.15
//
// Allow use of filesystems for ephemeral storage monitoring.
// Only applies if LocalStorageCapacityIsolation is set.
LocalStorageCapacityIsolationFSQuotaMonitoring featuregate.Feature = "LocalStorageCapacityIsolationFSQuotaMonitoring"
// owner: @damemi
// alpha: v1.21
// beta: v1.22
//
// Enables scaling down replicas via logarithmic comparison of creation/ready timestamps
LogarithmicScaleDown featuregate.Feature = "LogarithmicScaleDown"
// owner: @denkensk
// kep: https://kep.k8s.io/3243
// alpha: v1.25
//
// Enable MatchLabelKeys in PodTopologySpread.
MatchLabelKeysInPodTopologySpread featuregate.Feature = "MatchLabelKeysInPodTopologySpread"
// owner: @krmayankk
// alpha: v1.24
//
// Enables maxUnavailable for StatefulSet
MaxUnavailableStatefulSet featuregate.Feature = "MaxUnavailableStatefulSet"
// owner: @cynepco3hahue(alukiano) @cezaryzukowski @k-wiatrzyk
// alpha: v1.21
// beta: v1.22
// Allows setting memory affinity for a container based on NUMA topology
MemoryManager featuregate.Feature = "MemoryManager"
// owner: @xiaoxubeii
// kep: https://kep.k8s.io/2570
// alpha: v1.22
//
// Enables kubelet to support memory QoS with cgroups v2.
MemoryQoS featuregate.Feature = "MemoryQoS"
// owner: @sanposhiho
// kep: https://kep.k8s.io/3022
// alpha: v1.24
// beta: v1.25
//
// Enable MinDomains in Pod Topology Spread.
MinDomainsInPodTopologySpread featuregate.Feature = "MinDomainsInPodTopologySpread"
// owner: @danwinship
// kep: http://kep.k8s.io/3453
// alpha: v1.26
//
// Enables new performance-improving code in kube-proxy iptables mode
MinimizeIPTablesRestore featuregate.Feature = "MinimizeIPTablesRestore"
// owner: @janosi @bridgetkromhout
// kep: https://kep.k8s.io/1435
// alpha: v1.20
// beta: v1.24
// ga: v1.26
//
// Enables the usage of different protocols in the same Service with type=LoadBalancer
MixedProtocolLBService featuregate.Feature = "MixedProtocolLBService"
// owner: @sarveshr7
// kep: https://kep.k8s.io/2593
// alpha: v1.25
//
// Enables the MultiCIDR Range allocator.
MultiCIDRRangeAllocator featuregate.Feature = "MultiCIDRRangeAllocator"
// owner: @rikatz
// kep: https://kep.k8s.io/2079
// alpha: v1.21
// beta: v1.22
// ga: v1.25
//
// Enables the endPort field in NetworkPolicy to enable a Port Range behavior in Network Policies.
NetworkPolicyEndPort featuregate.Feature = "NetworkPolicyEndPort"
// owner: @rikatz
// kep: https://kep.k8s.io/2943
// alpha: v1.24
//
// Enables NetworkPolicy status subresource
NetworkPolicyStatus featuregate.Feature = "NetworkPolicyStatus"
// owner: @xing-yang @sonasingh46
// kep: https://kep.k8s.io/2268
// alpha: v1.24
// beta: v1.26
//
// Allow pods to failover to a different node in case of non graceful node shutdown
NodeOutOfServiceVolumeDetach featuregate.Feature = "NodeOutOfServiceVolumeDetach"
// owner: @ehashman
// alpha: v1.22
//
// Permits kubelet to run with swap enabled
NodeSwap featuregate.Feature = "NodeSwap"
// owner: @haircommander
// kep: https://kep.k8s.io/2364
// alpha: v1.23
//
// Configures the Kubelet to use the CRI to populate pod and container stats, instead of supplimenting with stats from cAdvisor.
// Requires the CRI implementation supports supplying the required stats.
PodAndContainerStatsFromCRI featuregate.Feature = "PodAndContainerStatsFromCRI"
// owner: @ahg-g
// alpha: v1.21
// beta: v1.22
//
// Enables controlling pod ranking on replicaset scale-down.
PodDeletionCost featuregate.Feature = "PodDeletionCost"
// owner: @mimowo
// kep: https://kep.k8s.io/3329
// alpha: v1.25
//
// Enables support for appending a dedicated pod condition indicating that
// the pod is being deleted due to a disruption.
PodDisruptionConditions featuregate.Feature = "PodDisruptionConditions"
// owner: @ddebroy
// alpha: v1.25
//
// Enables reporting of PodHasNetwork condition in pod status after pod
// sandbox creation and network configuration completes successfully
PodHasNetworkCondition featuregate.Feature = "PodHasNetworkCondition"
// owner: @Huang-Wei
// kep: https://kep.k8s.io/3521
// alpha: v1.26
//
// Enable users to specify when a Pod is ready for scheduling.
PodSchedulingReadiness featuregate.Feature = "PodSchedulingReadiness"
// owner: @liggitt, @tallclair, sig-auth
// alpha: v1.22
// beta: v1.23
// ga: v1.25
//
// Enables the PodSecurity admission plugin
PodSecurity featuregate.Feature = "PodSecurity"
// owner: @ehashman
// alpha: v1.21
// beta: v1.22
//
// Allows user to override pod-level terminationGracePeriod for probes
ProbeTerminationGracePeriod featuregate.Feature = "ProbeTerminationGracePeriod"
// owner: @jessfraz
// alpha: v1.12
//
// Enables control over ProcMountType for containers.
ProcMountType featuregate.Feature = "ProcMountType"
// owner: @andrewsykim
// kep: https://kep.k8s.io/1669
// alpha: v1.22
// beta: v1.26
//
// Enable kube-proxy to handle terminating ednpoints when externalTrafficPolicy=Local
ProxyTerminatingEndpoints featuregate.Feature = "ProxyTerminatingEndpoints"
// owner: @sjenning
// alpha: v1.11
//
// Allows resource reservations at the QoS level preventing pods at lower QoS levels from
// bursting into resources requested at higher QoS levels (memory only for now)
QOSReserved featuregate.Feature = "QOSReserved"
// owner: @chrishenzie
// alpha: v1.22
//
// Enables usage of the ReadWriteOncePod PersistentVolume access mode.
ReadWriteOncePod featuregate.Feature = "ReadWriteOncePod"
// owner: @gnufied
// kep: https://kep.k8s.io/1790
// alpha: v1.23
//
// Allow users to recover from volume expansion failure
RecoverVolumeExpansionFailure featuregate.Feature = "RecoverVolumeExpansionFailure"
// owner: @RomanBednar
// kep: https://kep.k8s.io/3333
// alpha: v1.25
//
// Allow assigning StorageClass to unbound PVCs retroactively
RetroactiveDefaultStorageClass featuregate.Feature = "RetroactiveDefaultStorageClass"
// owner: @mikedanese
// alpha: v1.7
// beta: v1.12
//
// Gets a server certificate for the kubelet from the Certificate Signing
// Request API instead of generating one self signed and auto rotates the
// certificate as expiration approaches.
RotateKubeletServerCertificate featuregate.Feature = "RotateKubeletServerCertificate"
// owner: @saschagrunert
// kep: https://kep.k8s.io/2413
// alpha: v1.22
// beta: v1.25
//
// Enables the use of `RuntimeDefault` as the default seccomp profile for all workloads.
SeccompDefault featuregate.Feature = "SeccompDefault"
// owner: @maplain @andrewsykim
// kep: https://kep.k8s.io/2086
// alpha: v1.21
// beta: v1.22
// GA: v1.26
//
// Enables node-local routing for Service internal traffic
ServiceInternalTrafficPolicy featuregate.Feature = "ServiceInternalTrafficPolicy"
// owner: @aojea
// kep: https://kep.k8s.io/3070
// alpha: v1.24
// beta: v1.25
// ga: v1.26
//
// Subdivide the ClusterIP range for dynamic and static IP allocation.
ServiceIPStaticSubrange featuregate.Feature = "ServiceIPStaticSubrange"
// owner: @derekwaynecarr
// alpha: v1.20
// beta: v1.22
//
// Enables kubelet support to size memory backed volumes
SizeMemoryBackedVolumes featuregate.Feature = "SizeMemoryBackedVolumes"
// owner: @mattcary
// alpha: v1.22
//
// Enables policies controlling deletion of PVCs created by a StatefulSet.
StatefulSetAutoDeletePVC featuregate.Feature = "StatefulSetAutoDeletePVC"
// owner: @ravig
// kep: https://kep.k8s.io/2607
// alpha: v1.22
// beta: v1.23
// GA: v1.25
// StatefulSetMinReadySeconds allows minReadySeconds to be respected by StatefulSet controller
StatefulSetMinReadySeconds featuregate.Feature = "StatefulSetMinReadySeconds"
// owner: @robscott
// kep: https://kep.k8s.io/2433
// alpha: v1.21
// beta: v1.23
//
// Enables topology aware hints for EndpointSlices
TopologyAwareHints featuregate.Feature = "TopologyAwareHints"
// owner: @lmdaly
// alpha: v1.16
// beta: v1.18
//
// Enable resource managers to make NUMA aligned decisions
TopologyManager featuregate.Feature = "TopologyManager"
// owner: @PiotrProkop
// kep: https://kep.k8s.io/3545
// alpha: v1.26
//
// Allow fine-tuning of topology manager policies with alpha options.
// This feature gate:
// - will guard *a group* of topology manager options whose quality level is alpha.
// - will never graduate to beta or stable.
TopologyManagerPolicyAlphaOptions featuregate.Feature = "TopologyManagerPolicyAlphaOptions"
// owner: @PiotrProkop
// kep: https://kep.k8s.io/3545
// alpha: v1.26
//
// Allow fine-tuning of topology manager policies with beta options.
// This feature gate:
// - will guard *a group* of topology manager options whose quality level is beta.
// - is thus *introduced* as beta
// - will never graduate to stable.
TopologyManagerPolicyBetaOptions featuregate.Feature = "TopologyManagerPolicyBetaOptions"
// owner: @PiotrProkop
// kep: https://kep.k8s.io/3545
// alpha: v1.26
//
// Allow the usage of options to fine-tune the topology manager policies.
TopologyManagerPolicyOptions featuregate.Feature = "TopologyManagerPolicyOptions"
// owner: @rata, @giuseppe
// kep: https://kep.k8s.io/127
// alpha: v1.25
//
// Enables user namespace support for stateless pods.
UserNamespacesStatelessPodsSupport featuregate.Feature = "UserNamespacesStatelessPodsSupport"
// owner: @cofyc
// alpha: v1.21
VolumeCapacityPriority featuregate.Feature = "VolumeCapacityPriority"
// owner: @ksubrmnn
// alpha: v1.14
//
// Allows kube-proxy to create DSR loadbalancers for Windows
WinDSR featuregate.Feature = "WinDSR"
// owner: @ksubrmnn
// alpha: v1.14
// beta: v1.20
//
// Allows kube-proxy to run in Overlay mode for Windows
WinOverlay featuregate.Feature = "WinOverlay"
// owner: @marosset
// kep: https://kep.k8s.io/3503
// alpha: v1.26
//
// Enables support for joining Windows containers to a hosts' network namespace.
WindowsHostNetwork featuregate.Feature = "WindowsHostNetwork"
// owner: @marosset
// alpha: v1.22
// beta: v1.23
// GA: v1.26
//
// Enables support for 'HostProcess' containers on Windows nodes.
WindowsHostProcessContainers featuregate.Feature = "WindowsHostProcessContainers"
// owner: @kerthcet
// kep: https://kep.k8s.io/3094
// alpha: v1.25
// beta: v1.26
//
// Allow users to specify whether to take nodeAffinity/nodeTaint into consideration when
// calculating pod topology spread skew.
NodeInclusionPolicyInPodTopologySpread featuregate.Feature = "NodeInclusionPolicyInPodTopologySpread"
// owner: @jsafrane
// kep: https://kep.k8s.io/1710
// alpha: v1.25
// Speed up container startup by mounting volumes with the correct SELinux label
// instead of changing each file on the volumes recursively.
// Initial implementation focused on ReadWriteOncePod volumes.
SELinuxMountReadWriteOncePod featuregate.Feature = "SELinuxMountReadWriteOncePod"
)
func init() {
runtime.Must(utilfeature.DefaultMutableFeatureGate.Add(defaultKubernetesFeatureGates))
}
// defaultKubernetesFeatureGates consists of all known Kubernetes-specific feature keys.
// To add a new feature, define a key for it above and add it here. The features will be
// available throughout Kubernetes binaries.
//
// Entries are separated from each other with blank lines to avoid sweeping gofmt changes
// when adding or removing one entry.
var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureSpec{
AnyVolumeDataSource: {Default: true, PreRelease: featuregate.Beta}, // on by default in 1.24
APISelfSubjectReview: {Default: false, PreRelease: featuregate.Alpha},
AppArmor: {Default: true, PreRelease: featuregate.Beta},
CPUCFSQuotaPeriod: {Default: false, PreRelease: featuregate.Alpha},
CPUManager: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // GA in 1.26
CPUManagerPolicyAlphaOptions: {Default: false, PreRelease: featuregate.Alpha},
CPUManagerPolicyBetaOptions: {Default: true, PreRelease: featuregate.Beta},
CPUManagerPolicyOptions: {Default: true, PreRelease: featuregate.Beta},
CSIInlineVolume: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.27
CSIMigration: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.27
CSIMigrationAWS: {Default: true, PreRelease: featuregate.GA, LockToDefault: true},
CSIMigrationAzureDisk: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // On by default in 1.23 (requires Azure Disk CSI driver)
CSIMigrationAzureFile: {Default: true, PreRelease: featuregate.GA}, // On by default in 1.24 (requires Azure File CSI driver)
CSIMigrationGCE: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // GA in 1.25 (requires GCE PD CSI Driver)
CSIMigrationPortworx: {Default: false, PreRelease: featuregate.Beta}, // Off by default (requires Portworx CSI driver)
CSIMigrationRBD: {Default: false, PreRelease: featuregate.Alpha}, // Off by default (requires RBD CSI driver)
CSIMigrationvSphere: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.28
CSINodeExpandSecret: {Default: false, PreRelease: featuregate.Alpha},
CSIStorageCapacity: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.26
CSIVolumeHealth: {Default: false, PreRelease: featuregate.Alpha},
ContainerCheckpoint: {Default: false, PreRelease: featuregate.Alpha},
ConsistentHTTPGetHandlers: {Default: true, PreRelease: featuregate.GA},
ControllerManagerLeaderMigration: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.26
CronJobTimeZone: {Default: true, PreRelease: featuregate.Beta},
DaemonSetUpdateSurge: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.27
DelegateFSGroupToCSIDriver: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.28
DevicePlugins: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // GA in 1.26
DisableAcceleratorUsageMetrics: {Default: true, PreRelease: featuregate.GA, LockToDefault: true},
DisableCloudProviders: {Default: false, PreRelease: featuregate.Alpha},
DisableKubeletCloudCredentialProviders: {Default: false, PreRelease: featuregate.Alpha},
DownwardAPIHugePages: {Default: true, PreRelease: featuregate.Beta}, // on by default in 1.22
EndpointSliceTerminatingCondition: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in v1.28
EphemeralContainers: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.27
EventedPLEG: {Default: false, PreRelease: featuregate.Alpha},
ExecProbeTimeout: {Default: true, PreRelease: featuregate.GA}, // lock to default and remove after v1.22 based on KEP #1972 update
ExpandCSIVolumes: {Default: true, PreRelease: featuregate.GA}, // remove in 1.26
ExpandInUsePersistentVolumes: {Default: true, PreRelease: featuregate.GA}, // remove in 1.26
ExpandPersistentVolumes: {Default: true, PreRelease: featuregate.GA}, // remove in 1.26
ExpandedDNSConfig: {Default: true, PreRelease: featuregate.Beta},
ExperimentalHostUserNamespaceDefaultingGate: {Default: false, PreRelease: featuregate.Beta},
GRPCContainerProbe: {Default: true, PreRelease: featuregate.Beta},
GracefulNodeShutdown: {Default: true, PreRelease: featuregate.Beta},
GracefulNodeShutdownBasedOnPodPriority: {Default: true, PreRelease: featuregate.Beta},
HPAContainerMetrics: {Default: false, PreRelease: featuregate.Alpha},
HonorPVReclaimPolicy: {Default: false, PreRelease: featuregate.Alpha},
IdentifyPodOS: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.27
InTreePluginAWSUnregister: {Default: false, PreRelease: featuregate.Alpha},
InTreePluginAzureDiskUnregister: {Default: false, PreRelease: featuregate.Alpha},
InTreePluginAzureFileUnregister: {Default: false, PreRelease: featuregate.Alpha},
InTreePluginGCEUnregister: {Default: false, PreRelease: featuregate.Alpha},
InTreePluginPortworxUnregister: {Default: false, PreRelease: featuregate.Alpha},
InTreePluginRBDUnregister: {Default: false, PreRelease: featuregate.Alpha},
InTreePluginvSphereUnregister: {Default: false, PreRelease: featuregate.Alpha},
IPTablesOwnershipCleanup: {Default: false, PreRelease: featuregate.Alpha},
JobPodFailurePolicy: {Default: false, PreRelease: featuregate.Alpha},
JobMutableNodeSchedulingDirectives: {Default: true, PreRelease: featuregate.Beta},
JobReadyPods: {Default: true, PreRelease: featuregate.Beta},