-
Notifications
You must be signed in to change notification settings - Fork 40.2k
/
Copy pathcore.go
653 lines (579 loc) · 27.7 KB
/
core.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
/*
Copyright 2016 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 app implements a server that runs a set of active
// components. This includes replication controllers, service endpoints and
// nodes.
//
package app
import (
"errors"
"fmt"
"net"
"net/http"
"strings"
"time"
"k8s.io/klog/v2"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/runtime/schema"
utilfeature "k8s.io/apiserver/pkg/util/feature"
storagev1informer "k8s.io/client-go/informers/storage/v1"
clientset "k8s.io/client-go/kubernetes"
"k8s.io/client-go/metadata"
restclient "k8s.io/client-go/rest"
cloudnodelifecyclecontroller "k8s.io/cloud-provider/controllers/nodelifecycle"
routecontroller "k8s.io/cloud-provider/controllers/route"
servicecontroller "k8s.io/cloud-provider/controllers/service"
"k8s.io/component-base/metrics/prometheus/ratelimiter"
csitrans "k8s.io/csi-translation-lib"
"k8s.io/kubernetes/pkg/controller"
endpointcontroller "k8s.io/kubernetes/pkg/controller/endpoint"
"k8s.io/kubernetes/pkg/controller/garbagecollector"
namespacecontroller "k8s.io/kubernetes/pkg/controller/namespace"
nodeipamcontroller "k8s.io/kubernetes/pkg/controller/nodeipam"
nodeipamconfig "k8s.io/kubernetes/pkg/controller/nodeipam/config"
"k8s.io/kubernetes/pkg/controller/nodeipam/ipam"
lifecyclecontroller "k8s.io/kubernetes/pkg/controller/nodelifecycle"
"k8s.io/kubernetes/pkg/controller/podgc"
replicationcontroller "k8s.io/kubernetes/pkg/controller/replication"
resourcequotacontroller "k8s.io/kubernetes/pkg/controller/resourcequota"
serviceaccountcontroller "k8s.io/kubernetes/pkg/controller/serviceaccount"
ttlcontroller "k8s.io/kubernetes/pkg/controller/ttl"
"k8s.io/kubernetes/pkg/controller/ttlafterfinished"
"k8s.io/kubernetes/pkg/controller/volume/attachdetach"
"k8s.io/kubernetes/pkg/controller/volume/ephemeral"
"k8s.io/kubernetes/pkg/controller/volume/expand"
persistentvolumecontroller "k8s.io/kubernetes/pkg/controller/volume/persistentvolume"
"k8s.io/kubernetes/pkg/controller/volume/pvcprotection"
"k8s.io/kubernetes/pkg/controller/volume/pvprotection"
"k8s.io/kubernetes/pkg/features"
"k8s.io/kubernetes/pkg/quota/v1/generic"
quotainstall "k8s.io/kubernetes/pkg/quota/v1/install"
"k8s.io/kubernetes/pkg/volume/csimigration"
netutils "k8s.io/utils/net"
)
const (
// defaultNodeMaskCIDRIPv4 is default mask size for IPv4 node cidr
defaultNodeMaskCIDRIPv4 = 24
// defaultNodeMaskCIDRIPv6 is default mask size for IPv6 node cidr
defaultNodeMaskCIDRIPv6 = 64
)
func startServiceController(ctx ControllerContext) (http.Handler, bool, error) {
serviceController, err := servicecontroller.New(
ctx.Cloud,
ctx.ClientBuilder.ClientOrDie("service-controller"),
ctx.InformerFactory.Core().V1().Services(),
ctx.InformerFactory.Core().V1().Nodes(),
ctx.ComponentConfig.KubeCloudShared.ClusterName,
utilfeature.DefaultFeatureGate,
)
if err != nil {
// This error shouldn't fail. It lives like this as a legacy.
klog.Errorf("Failed to start service controller: %v", err)
return nil, false, nil
}
go serviceController.Run(ctx.Stop, int(ctx.ComponentConfig.ServiceController.ConcurrentServiceSyncs))
return nil, true, nil
}
func startNodeIpamController(ctx ControllerContext) (http.Handler, bool, error) {
var serviceCIDR *net.IPNet
var secondaryServiceCIDR *net.IPNet
// should we start nodeIPAM
if !ctx.ComponentConfig.KubeCloudShared.AllocateNodeCIDRs {
return nil, false, nil
}
// failure: bad cidrs in config
clusterCIDRs, dualStack, err := processCIDRs(ctx.ComponentConfig.KubeCloudShared.ClusterCIDR)
if err != nil {
return nil, false, err
}
// failure: more than one cidr and dual stack is not enabled
if len(clusterCIDRs) > 1 && !utilfeature.DefaultFeatureGate.Enabled(features.IPv6DualStack) {
return nil, false, fmt.Errorf("len of ClusterCIDRs==%v and dualstack feature is not enabled", len(clusterCIDRs))
}
// failure: more than one cidr but they are not configured as dual stack
if len(clusterCIDRs) > 1 && !dualStack {
return nil, false, fmt.Errorf("len of ClusterCIDRs==%v and they are not configured as dual stack (at least one from each IPFamily", len(clusterCIDRs))
}
// failure: more than cidrs is not allowed even with dual stack
if len(clusterCIDRs) > 2 {
return nil, false, fmt.Errorf("len of clusters is:%v > more than max allowed of 2", len(clusterCIDRs))
}
// service cidr processing
if len(strings.TrimSpace(ctx.ComponentConfig.NodeIPAMController.ServiceCIDR)) != 0 {
_, serviceCIDR, err = net.ParseCIDR(ctx.ComponentConfig.NodeIPAMController.ServiceCIDR)
if err != nil {
klog.Warningf("Unsuccessful parsing of service CIDR %v: %v", ctx.ComponentConfig.NodeIPAMController.ServiceCIDR, err)
}
}
if len(strings.TrimSpace(ctx.ComponentConfig.NodeIPAMController.SecondaryServiceCIDR)) != 0 {
_, secondaryServiceCIDR, err = net.ParseCIDR(ctx.ComponentConfig.NodeIPAMController.SecondaryServiceCIDR)
if err != nil {
klog.Warningf("Unsuccessful parsing of service CIDR %v: %v", ctx.ComponentConfig.NodeIPAMController.SecondaryServiceCIDR, err)
}
}
// the following checks are triggered if both serviceCIDR and secondaryServiceCIDR are provided
if serviceCIDR != nil && secondaryServiceCIDR != nil {
// should have dual stack flag enabled
if !utilfeature.DefaultFeatureGate.Enabled(features.IPv6DualStack) {
return nil, false, fmt.Errorf("secondary service cidr is provided and IPv6DualStack feature is not enabled")
}
// should be dual stack (from different IPFamilies)
dualstackServiceCIDR, err := netutils.IsDualStackCIDRs([]*net.IPNet{serviceCIDR, secondaryServiceCIDR})
if err != nil {
return nil, false, fmt.Errorf("failed to perform dualstack check on serviceCIDR and secondaryServiceCIDR error:%v", err)
}
if !dualstackServiceCIDR {
return nil, false, fmt.Errorf("serviceCIDR and secondaryServiceCIDR are not dualstack (from different IPfamiles)")
}
}
var nodeCIDRMaskSizeIPv4, nodeCIDRMaskSizeIPv6 int
if utilfeature.DefaultFeatureGate.Enabled(features.IPv6DualStack) {
// only --node-cidr-mask-size-ipv4 and --node-cidr-mask-size-ipv6 supported with dual stack clusters.
// --node-cidr-mask-size flag is incompatible with dual stack clusters.
nodeCIDRMaskSizeIPv4, nodeCIDRMaskSizeIPv6, err = setNodeCIDRMaskSizesDualStack(ctx.ComponentConfig.NodeIPAMController)
} else {
// only --node-cidr-mask-size supported with single stack clusters.
// --node-cidr-mask-size-ipv4 and --node-cidr-mask-size-ipv6 flags are incompatible with dual stack clusters.
nodeCIDRMaskSizeIPv4, nodeCIDRMaskSizeIPv6, err = setNodeCIDRMaskSizes(ctx.ComponentConfig.NodeIPAMController)
}
if err != nil {
return nil, false, err
}
// get list of node cidr mask sizes
nodeCIDRMaskSizes := getNodeCIDRMaskSizes(clusterCIDRs, nodeCIDRMaskSizeIPv4, nodeCIDRMaskSizeIPv6)
nodeIpamController, err := nodeipamcontroller.NewNodeIpamController(
ctx.InformerFactory.Core().V1().Nodes(),
ctx.Cloud,
ctx.ClientBuilder.ClientOrDie("node-controller"),
clusterCIDRs,
serviceCIDR,
secondaryServiceCIDR,
nodeCIDRMaskSizes,
ipam.CIDRAllocatorType(ctx.ComponentConfig.KubeCloudShared.CIDRAllocatorType),
)
if err != nil {
return nil, true, err
}
go nodeIpamController.Run(ctx.Stop)
return nil, true, nil
}
func startNodeLifecycleController(ctx ControllerContext) (http.Handler, bool, error) {
lifecycleController, err := lifecyclecontroller.NewNodeLifecycleController(
ctx.InformerFactory.Coordination().V1().Leases(),
ctx.InformerFactory.Core().V1().Pods(),
ctx.InformerFactory.Core().V1().Nodes(),
ctx.InformerFactory.Apps().V1().DaemonSets(),
// node lifecycle controller uses existing cluster role from node-controller
ctx.ClientBuilder.ClientOrDie("node-controller"),
ctx.ComponentConfig.KubeCloudShared.NodeMonitorPeriod.Duration,
ctx.ComponentConfig.NodeLifecycleController.NodeStartupGracePeriod.Duration,
ctx.ComponentConfig.NodeLifecycleController.NodeMonitorGracePeriod.Duration,
ctx.ComponentConfig.NodeLifecycleController.PodEvictionTimeout.Duration,
ctx.ComponentConfig.NodeLifecycleController.NodeEvictionRate,
ctx.ComponentConfig.NodeLifecycleController.SecondaryNodeEvictionRate,
ctx.ComponentConfig.NodeLifecycleController.LargeClusterSizeThreshold,
ctx.ComponentConfig.NodeLifecycleController.UnhealthyZoneThreshold,
ctx.ComponentConfig.NodeLifecycleController.EnableTaintManager,
)
if err != nil {
return nil, true, err
}
go lifecycleController.Run(ctx.Stop)
return nil, true, nil
}
func startCloudNodeLifecycleController(ctx ControllerContext) (http.Handler, bool, error) {
cloudNodeLifecycleController, err := cloudnodelifecyclecontroller.NewCloudNodeLifecycleController(
ctx.InformerFactory.Core().V1().Nodes(),
// cloud node lifecycle controller uses existing cluster role from node-controller
ctx.ClientBuilder.ClientOrDie("node-controller"),
ctx.Cloud,
ctx.ComponentConfig.KubeCloudShared.NodeMonitorPeriod.Duration,
)
if err != nil {
// the controller manager should continue to run if the "Instances" interface is not
// supported, though it's unlikely for a cloud provider to not support it
klog.Errorf("failed to start cloud node lifecycle controller: %v", err)
return nil, false, nil
}
go cloudNodeLifecycleController.Run(ctx.Stop)
return nil, true, nil
}
func startRouteController(ctx ControllerContext) (http.Handler, bool, error) {
if !ctx.ComponentConfig.KubeCloudShared.AllocateNodeCIDRs || !ctx.ComponentConfig.KubeCloudShared.ConfigureCloudRoutes {
klog.Infof("Will not configure cloud provider routes for allocate-node-cidrs: %v, configure-cloud-routes: %v.", ctx.ComponentConfig.KubeCloudShared.AllocateNodeCIDRs, ctx.ComponentConfig.KubeCloudShared.ConfigureCloudRoutes)
return nil, false, nil
}
if ctx.Cloud == nil {
klog.Warning("configure-cloud-routes is set, but no cloud provider specified. Will not configure cloud provider routes.")
return nil, false, nil
}
routes, ok := ctx.Cloud.Routes()
if !ok {
klog.Warning("configure-cloud-routes is set, but cloud provider does not support routes. Will not configure cloud provider routes.")
return nil, false, nil
}
// failure: bad cidrs in config
clusterCIDRs, dualStack, err := processCIDRs(ctx.ComponentConfig.KubeCloudShared.ClusterCIDR)
if err != nil {
return nil, false, err
}
// failure: more than one cidr and dual stack is not enabled
if len(clusterCIDRs) > 1 && !utilfeature.DefaultFeatureGate.Enabled(features.IPv6DualStack) {
return nil, false, fmt.Errorf("len of ClusterCIDRs==%v and dualstack feature is not enabled", len(clusterCIDRs))
}
// failure: more than one cidr but they are not configured as dual stack
if len(clusterCIDRs) > 1 && !dualStack {
return nil, false, fmt.Errorf("len of ClusterCIDRs==%v and they are not configured as dual stack (at least one from each IPFamily", len(clusterCIDRs))
}
// failure: more than cidrs is not allowed even with dual stack
if len(clusterCIDRs) > 2 {
return nil, false, fmt.Errorf("length of clusterCIDRs is:%v more than max allowed of 2", len(clusterCIDRs))
}
routeController := routecontroller.New(routes,
ctx.ClientBuilder.ClientOrDie("route-controller"),
ctx.InformerFactory.Core().V1().Nodes(),
ctx.ComponentConfig.KubeCloudShared.ClusterName,
clusterCIDRs)
go routeController.Run(ctx.Stop, ctx.ComponentConfig.KubeCloudShared.RouteReconciliationPeriod.Duration)
return nil, true, nil
}
func startPersistentVolumeBinderController(ctx ControllerContext) (http.Handler, bool, error) {
plugins, err := ProbeControllerVolumePlugins(ctx.Cloud, ctx.ComponentConfig.PersistentVolumeBinderController.VolumeConfiguration)
if err != nil {
return nil, true, fmt.Errorf("failed to probe volume plugins when starting persistentvolume controller: %v", err)
}
params := persistentvolumecontroller.ControllerParameters{
KubeClient: ctx.ClientBuilder.ClientOrDie("persistent-volume-binder"),
SyncPeriod: ctx.ComponentConfig.PersistentVolumeBinderController.PVClaimBinderSyncPeriod.Duration,
VolumePlugins: plugins,
Cloud: ctx.Cloud,
ClusterName: ctx.ComponentConfig.KubeCloudShared.ClusterName,
VolumeInformer: ctx.InformerFactory.Core().V1().PersistentVolumes(),
ClaimInformer: ctx.InformerFactory.Core().V1().PersistentVolumeClaims(),
ClassInformer: ctx.InformerFactory.Storage().V1().StorageClasses(),
PodInformer: ctx.InformerFactory.Core().V1().Pods(),
NodeInformer: ctx.InformerFactory.Core().V1().Nodes(),
EnableDynamicProvisioning: ctx.ComponentConfig.PersistentVolumeBinderController.VolumeConfiguration.EnableDynamicProvisioning,
}
volumeController, volumeControllerErr := persistentvolumecontroller.NewController(params)
if volumeControllerErr != nil {
return nil, true, fmt.Errorf("failed to construct persistentvolume controller: %v", volumeControllerErr)
}
go volumeController.Run(ctx.Stop)
return nil, true, nil
}
func startAttachDetachController(ctx ControllerContext) (http.Handler, bool, error) {
if ctx.ComponentConfig.AttachDetachController.ReconcilerSyncLoopPeriod.Duration < time.Second {
return nil, true, fmt.Errorf("duration time must be greater than one second as set via command line option reconcile-sync-loop-period")
}
var (
csiNodeInformer storagev1informer.CSINodeInformer
)
if utilfeature.DefaultFeatureGate.Enabled(features.CSINodeInfo) {
csiNodeInformer = ctx.InformerFactory.Storage().V1().CSINodes()
}
csiDriverInformer := ctx.InformerFactory.Storage().V1().CSIDrivers()
plugins, err := ProbeAttachableVolumePlugins()
if err != nil {
return nil, true, fmt.Errorf("failed to probe volume plugins when starting attach/detach controller: %v", err)
}
attachDetachController, attachDetachControllerErr :=
attachdetach.NewAttachDetachController(
ctx.ClientBuilder.ClientOrDie("attachdetach-controller"),
ctx.InformerFactory.Core().V1().Pods(),
ctx.InformerFactory.Core().V1().Nodes(),
ctx.InformerFactory.Core().V1().PersistentVolumeClaims(),
ctx.InformerFactory.Core().V1().PersistentVolumes(),
csiNodeInformer,
csiDriverInformer,
ctx.InformerFactory.Storage().V1().VolumeAttachments(),
ctx.Cloud,
plugins,
GetDynamicPluginProber(ctx.ComponentConfig.PersistentVolumeBinderController.VolumeConfiguration),
ctx.ComponentConfig.AttachDetachController.DisableAttachDetachReconcilerSync,
ctx.ComponentConfig.AttachDetachController.ReconcilerSyncLoopPeriod.Duration,
attachdetach.DefaultTimerConfig,
)
if attachDetachControllerErr != nil {
return nil, true, fmt.Errorf("failed to start attach/detach controller: %v", attachDetachControllerErr)
}
go attachDetachController.Run(ctx.Stop)
return nil, true, nil
}
func startVolumeExpandController(ctx ControllerContext) (http.Handler, bool, error) {
if utilfeature.DefaultFeatureGate.Enabled(features.ExpandPersistentVolumes) {
plugins, err := ProbeExpandableVolumePlugins(ctx.ComponentConfig.PersistentVolumeBinderController.VolumeConfiguration)
if err != nil {
return nil, true, fmt.Errorf("failed to probe volume plugins when starting volume expand controller: %v", err)
}
csiTranslator := csitrans.New()
expandController, expandControllerErr := expand.NewExpandController(
ctx.ClientBuilder.ClientOrDie("expand-controller"),
ctx.InformerFactory.Core().V1().PersistentVolumeClaims(),
ctx.InformerFactory.Core().V1().PersistentVolumes(),
ctx.InformerFactory.Storage().V1().StorageClasses(),
ctx.Cloud,
plugins,
csiTranslator,
csimigration.NewPluginManager(csiTranslator))
if expandControllerErr != nil {
return nil, true, fmt.Errorf("failed to start volume expand controller: %v", expandControllerErr)
}
go expandController.Run(ctx.Stop)
return nil, true, nil
}
return nil, false, nil
}
func startEphemeralVolumeController(ctx ControllerContext) (http.Handler, bool, error) {
if utilfeature.DefaultFeatureGate.Enabled(features.GenericEphemeralVolume) {
ephemeralController, err := ephemeral.NewController(
ctx.ClientBuilder.ClientOrDie("ephemeral-volume-controller"),
ctx.InformerFactory.Core().V1().Pods(),
ctx.InformerFactory.Core().V1().PersistentVolumeClaims())
if err != nil {
return nil, true, fmt.Errorf("failed to start ephemeral volume controller: %v", err)
}
// TODO (before beta at the latest): make this configurable similar to the EndpointController
go ephemeralController.Run(1 /* int(ctx.ComponentConfig.EphemeralController.ConcurrentEphemeralVolumeSyncs) */, ctx.Stop)
return nil, true, nil
}
return nil, false, nil
}
func startEndpointController(ctx ControllerContext) (http.Handler, bool, error) {
go endpointcontroller.NewEndpointController(
ctx.InformerFactory.Core().V1().Pods(),
ctx.InformerFactory.Core().V1().Services(),
ctx.InformerFactory.Core().V1().Endpoints(),
ctx.ClientBuilder.ClientOrDie("endpoint-controller"),
ctx.ComponentConfig.EndpointController.EndpointUpdatesBatchPeriod.Duration,
).Run(int(ctx.ComponentConfig.EndpointController.ConcurrentEndpointSyncs), ctx.Stop)
return nil, true, nil
}
func startReplicationController(ctx ControllerContext) (http.Handler, bool, error) {
go replicationcontroller.NewReplicationManager(
ctx.InformerFactory.Core().V1().Pods(),
ctx.InformerFactory.Core().V1().ReplicationControllers(),
ctx.ClientBuilder.ClientOrDie("replication-controller"),
replicationcontroller.BurstReplicas,
).Run(int(ctx.ComponentConfig.ReplicationController.ConcurrentRCSyncs), ctx.Stop)
return nil, true, nil
}
func startPodGCController(ctx ControllerContext) (http.Handler, bool, error) {
go podgc.NewPodGC(
ctx.ClientBuilder.ClientOrDie("pod-garbage-collector"),
ctx.InformerFactory.Core().V1().Pods(),
ctx.InformerFactory.Core().V1().Nodes(),
int(ctx.ComponentConfig.PodGCController.TerminatedPodGCThreshold),
).Run(ctx.Stop)
return nil, true, nil
}
func startResourceQuotaController(ctx ControllerContext) (http.Handler, bool, error) {
resourceQuotaControllerClient := ctx.ClientBuilder.ClientOrDie("resourcequota-controller")
discoveryFunc := resourceQuotaControllerClient.Discovery().ServerPreferredNamespacedResources
listerFuncForResource := generic.ListerFuncForResourceFunc(ctx.InformerFactory.ForResource)
quotaConfiguration := quotainstall.NewQuotaConfigurationForControllers(listerFuncForResource)
resourceQuotaControllerOptions := &resourcequotacontroller.ResourceQuotaControllerOptions{
QuotaClient: resourceQuotaControllerClient.CoreV1(),
ResourceQuotaInformer: ctx.InformerFactory.Core().V1().ResourceQuotas(),
ResyncPeriod: controller.StaticResyncPeriodFunc(ctx.ComponentConfig.ResourceQuotaController.ResourceQuotaSyncPeriod.Duration),
InformerFactory: ctx.ObjectOrMetadataInformerFactory,
ReplenishmentResyncPeriod: ctx.ResyncPeriod,
DiscoveryFunc: discoveryFunc,
IgnoredResourcesFunc: quotaConfiguration.IgnoredResources,
InformersStarted: ctx.InformersStarted,
Registry: generic.NewRegistry(quotaConfiguration.Evaluators()),
}
if resourceQuotaControllerClient.CoreV1().RESTClient().GetRateLimiter() != nil {
if err := ratelimiter.RegisterMetricAndTrackRateLimiterUsage("resource_quota_controller", resourceQuotaControllerClient.CoreV1().RESTClient().GetRateLimiter()); err != nil {
return nil, true, err
}
}
resourceQuotaController, err := resourcequotacontroller.NewResourceQuotaController(resourceQuotaControllerOptions)
if err != nil {
return nil, false, err
}
go resourceQuotaController.Run(int(ctx.ComponentConfig.ResourceQuotaController.ConcurrentResourceQuotaSyncs), ctx.Stop)
// Periodically the quota controller to detect new resource types
go resourceQuotaController.Sync(discoveryFunc, 30*time.Second, ctx.Stop)
return nil, true, nil
}
func startNamespaceController(ctx ControllerContext) (http.Handler, bool, error) {
// the namespace cleanup controller is very chatty. It makes lots of discovery calls and then it makes lots of delete calls
// the ratelimiter negatively affects its speed. Deleting 100 total items in a namespace (that's only a few of each resource
// including events), takes ~10 seconds by default.
nsKubeconfig := ctx.ClientBuilder.ConfigOrDie("namespace-controller")
nsKubeconfig.QPS *= 20
nsKubeconfig.Burst *= 100
namespaceKubeClient := clientset.NewForConfigOrDie(nsKubeconfig)
return startModifiedNamespaceController(ctx, namespaceKubeClient, nsKubeconfig)
}
func startModifiedNamespaceController(ctx ControllerContext, namespaceKubeClient clientset.Interface, nsKubeconfig *restclient.Config) (http.Handler, bool, error) {
metadataClient, err := metadata.NewForConfig(nsKubeconfig)
if err != nil {
return nil, true, err
}
discoverResourcesFn := namespaceKubeClient.Discovery().ServerPreferredNamespacedResources
namespaceController := namespacecontroller.NewNamespaceController(
namespaceKubeClient,
metadataClient,
discoverResourcesFn,
ctx.InformerFactory.Core().V1().Namespaces(),
ctx.ComponentConfig.NamespaceController.NamespaceSyncPeriod.Duration,
v1.FinalizerKubernetes,
)
go namespaceController.Run(int(ctx.ComponentConfig.NamespaceController.ConcurrentNamespaceSyncs), ctx.Stop)
return nil, true, nil
}
func startServiceAccountController(ctx ControllerContext) (http.Handler, bool, error) {
sac, err := serviceaccountcontroller.NewServiceAccountsController(
ctx.InformerFactory.Core().V1().ServiceAccounts(),
ctx.InformerFactory.Core().V1().Namespaces(),
ctx.ClientBuilder.ClientOrDie("service-account-controller"),
serviceaccountcontroller.DefaultServiceAccountsControllerOptions(),
)
if err != nil {
return nil, true, fmt.Errorf("error creating ServiceAccount controller: %v", err)
}
go sac.Run(1, ctx.Stop)
return nil, true, nil
}
func startTTLController(ctx ControllerContext) (http.Handler, bool, error) {
go ttlcontroller.NewTTLController(
ctx.InformerFactory.Core().V1().Nodes(),
ctx.ClientBuilder.ClientOrDie("ttl-controller"),
).Run(5, ctx.Stop)
return nil, true, nil
}
func startGarbageCollectorController(ctx ControllerContext) (http.Handler, bool, error) {
if !ctx.ComponentConfig.GarbageCollectorController.EnableGarbageCollector {
return nil, false, nil
}
gcClientset := ctx.ClientBuilder.ClientOrDie("generic-garbage-collector")
config := ctx.ClientBuilder.ConfigOrDie("generic-garbage-collector")
metadataClient, err := metadata.NewForConfig(config)
if err != nil {
return nil, true, err
}
ignoredResources := make(map[schema.GroupResource]struct{})
for _, r := range ctx.ComponentConfig.GarbageCollectorController.GCIgnoredResources {
ignoredResources[schema.GroupResource{Group: r.Group, Resource: r.Resource}] = struct{}{}
}
garbageCollector, err := garbagecollector.NewGarbageCollector(
metadataClient,
ctx.RESTMapper,
ignoredResources,
ctx.ObjectOrMetadataInformerFactory,
ctx.InformersStarted,
)
if err != nil {
return nil, true, fmt.Errorf("failed to start the generic garbage collector: %v", err)
}
// Start the garbage collector.
workers := int(ctx.ComponentConfig.GarbageCollectorController.ConcurrentGCSyncs)
go garbageCollector.Run(workers, ctx.Stop)
// Periodically refresh the RESTMapper with new discovery information and sync
// the garbage collector.
go garbageCollector.Sync(gcClientset.Discovery(), 30*time.Second, ctx.Stop)
return garbagecollector.NewDebugHandler(garbageCollector), true, nil
}
func startPVCProtectionController(ctx ControllerContext) (http.Handler, bool, error) {
pvcProtectionController, err := pvcprotection.NewPVCProtectionController(
ctx.InformerFactory.Core().V1().PersistentVolumeClaims(),
ctx.InformerFactory.Core().V1().Pods(),
ctx.ClientBuilder.ClientOrDie("pvc-protection-controller"),
utilfeature.DefaultFeatureGate.Enabled(features.StorageObjectInUseProtection),
utilfeature.DefaultFeatureGate.Enabled(features.StorageObjectInUseProtection),
)
if err != nil {
return nil, true, fmt.Errorf("failed to start the pvc protection controller: %v", err)
}
go pvcProtectionController.Run(1, ctx.Stop)
return nil, true, nil
}
func startPVProtectionController(ctx ControllerContext) (http.Handler, bool, error) {
go pvprotection.NewPVProtectionController(
ctx.InformerFactory.Core().V1().PersistentVolumes(),
ctx.ClientBuilder.ClientOrDie("pv-protection-controller"),
utilfeature.DefaultFeatureGate.Enabled(features.StorageObjectInUseProtection),
).Run(1, ctx.Stop)
return nil, true, nil
}
func startTTLAfterFinishedController(ctx ControllerContext) (http.Handler, bool, error) {
if !utilfeature.DefaultFeatureGate.Enabled(features.TTLAfterFinished) {
return nil, false, nil
}
go ttlafterfinished.New(
ctx.InformerFactory.Batch().V1().Jobs(),
ctx.ClientBuilder.ClientOrDie("ttl-after-finished-controller"),
).Run(int(ctx.ComponentConfig.TTLAfterFinishedController.ConcurrentTTLSyncs), ctx.Stop)
return nil, true, nil
}
// processCIDRs is a helper function that works on a comma separated cidrs and returns
// a list of typed cidrs
// a flag if cidrs represents a dual stack
// error if failed to parse any of the cidrs
func processCIDRs(cidrsList string) ([]*net.IPNet, bool, error) {
cidrsSplit := strings.Split(strings.TrimSpace(cidrsList), ",")
cidrs, err := netutils.ParseCIDRs(cidrsSplit)
if err != nil {
return nil, false, err
}
// if cidrs has an error then the previous call will fail
// safe to ignore error checking on next call
dualstack, _ := netutils.IsDualStackCIDRs(cidrs)
return cidrs, dualstack, nil
}
// setNodeCIDRMaskSizes returns the IPv4 and IPv6 node cidr mask sizes.
// If --node-cidr-mask-size not set, then it will return default IPv4 and IPv6 cidr mask sizes.
func setNodeCIDRMaskSizes(cfg nodeipamconfig.NodeIPAMControllerConfiguration) (int, int, error) {
ipv4Mask, ipv6Mask := defaultNodeMaskCIDRIPv4, defaultNodeMaskCIDRIPv6
// NodeCIDRMaskSizeIPv4 and NodeCIDRMaskSizeIPv6 can be used only for dual-stack clusters
if cfg.NodeCIDRMaskSizeIPv4 != 0 || cfg.NodeCIDRMaskSizeIPv6 != 0 {
return ipv4Mask, ipv6Mask, errors.New("usage of --node-cidr-mask-size-ipv4 and --node-cidr-mask-size-ipv6 are not allowed with non dual-stack clusters")
}
if cfg.NodeCIDRMaskSize != 0 {
ipv4Mask = int(cfg.NodeCIDRMaskSize)
ipv6Mask = int(cfg.NodeCIDRMaskSize)
}
return ipv4Mask, ipv6Mask, nil
}
// setNodeCIDRMaskSizesDualStack returns the IPv4 and IPv6 node cidr mask sizes to the value provided
// for --node-cidr-mask-size-ipv4 and --node-cidr-mask-size-ipv6 respectively. If value not provided,
// then it will return default IPv4 and IPv6 cidr mask sizes.
func setNodeCIDRMaskSizesDualStack(cfg nodeipamconfig.NodeIPAMControllerConfiguration) (int, int, error) {
ipv4Mask, ipv6Mask := defaultNodeMaskCIDRIPv4, defaultNodeMaskCIDRIPv6
// NodeCIDRMaskSize can be used only for single stack clusters
if cfg.NodeCIDRMaskSize != 0 {
return ipv4Mask, ipv6Mask, errors.New("usage of --node-cidr-mask-size is not allowed with dual-stack clusters")
}
if cfg.NodeCIDRMaskSizeIPv4 != 0 {
ipv4Mask = int(cfg.NodeCIDRMaskSizeIPv4)
}
if cfg.NodeCIDRMaskSizeIPv6 != 0 {
ipv6Mask = int(cfg.NodeCIDRMaskSizeIPv6)
}
return ipv4Mask, ipv6Mask, nil
}
// getNodeCIDRMaskSizes is a helper function that helps the generate the node cidr mask
// sizes slice based on the cluster cidr slice
func getNodeCIDRMaskSizes(clusterCIDRs []*net.IPNet, maskSizeIPv4, maskSizeIPv6 int) []int {
nodeMaskCIDRs := make([]int, len(clusterCIDRs))
for idx, clusterCIDR := range clusterCIDRs {
if netutils.IsIPv6CIDR(clusterCIDR) {
nodeMaskCIDRs[idx] = maskSizeIPv6
} else {
nodeMaskCIDRs[idx] = maskSizeIPv4
}
}
return nodeMaskCIDRs
}