Files
kubernetes/cmd/kube-controller-manager/app/options/options.go
Antonio Ojea 8d6769f62c disable cloud-provider code from kube-controller-manager
Since 1.31 the core component cloud provider logic should not exist,
this disables the existing code in the kube-controller-manager that still
expects to work with the cloud-provider logic to avoid having time bombs
in the code base that can break the component.

The code can not be completely removed because this will impact existing
users that may be using some of the flags breaking their deployments, so
this just removes the code that is no longer to be used becuase it
depends on options that no longer are exposed to users.

It also adds validation on the configuration/flag level to ensure that
the --cloud-provider flag can only be set to external or empty.
2024-10-22 14:04:48 +00:00

513 lines
23 KiB
Go

/*
Copyright 2014 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 options provides the flags used for the controller manager.
package options
import (
"fmt"
"net"
v1 "k8s.io/api/core/v1"
utilerrors "k8s.io/apimachinery/pkg/util/errors"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
apiserveroptions "k8s.io/apiserver/pkg/server/options"
utilfeature "k8s.io/apiserver/pkg/util/feature"
utilversion "k8s.io/apiserver/pkg/util/version"
clientgofeaturegate "k8s.io/client-go/features"
clientset "k8s.io/client-go/kubernetes"
clientgokubescheme "k8s.io/client-go/kubernetes/scheme"
restclient "k8s.io/client-go/rest"
"k8s.io/client-go/tools/clientcmd"
"k8s.io/client-go/tools/record"
cloudprovider "k8s.io/cloud-provider"
cpnames "k8s.io/cloud-provider/names"
cpoptions "k8s.io/cloud-provider/options"
cliflag "k8s.io/component-base/cli/flag"
"k8s.io/component-base/featuregate"
"k8s.io/component-base/logs"
logsapi "k8s.io/component-base/logs/api/v1"
"k8s.io/component-base/metrics"
cmoptions "k8s.io/controller-manager/options"
"k8s.io/klog/v2"
kubectrlmgrconfigv1alpha1 "k8s.io/kube-controller-manager/config/v1alpha1"
kubecontrollerconfig "k8s.io/kubernetes/cmd/kube-controller-manager/app/config"
"k8s.io/kubernetes/cmd/kube-controller-manager/names"
"k8s.io/kubernetes/pkg/cluster/ports"
kubectrlmgrconfig "k8s.io/kubernetes/pkg/controller/apis/config"
kubectrlmgrconfigscheme "k8s.io/kubernetes/pkg/controller/apis/config/scheme"
"k8s.io/kubernetes/pkg/controller/garbagecollector"
garbagecollectorconfig "k8s.io/kubernetes/pkg/controller/garbagecollector/config"
"k8s.io/kubernetes/pkg/controller/nodeipam/ipam"
netutils "k8s.io/utils/net"
// add the kubernetes feature gates
_ "k8s.io/kubernetes/pkg/features"
)
const (
// KubeControllerManagerUserAgent is the userAgent name when starting kube-controller managers.
KubeControllerManagerUserAgent = "kube-controller-manager"
)
// KubeControllerManagerOptions is the main context object for the kube-controller manager.
type KubeControllerManagerOptions struct {
Generic *cmoptions.GenericControllerManagerConfigurationOptions
KubeCloudShared *cpoptions.KubeCloudSharedOptions
ServiceController *cpoptions.ServiceControllerOptions
AttachDetachController *AttachDetachControllerOptions
CSRSigningController *CSRSigningControllerOptions
DaemonSetController *DaemonSetControllerOptions
DeploymentController *DeploymentControllerOptions
StatefulSetController *StatefulSetControllerOptions
DeprecatedFlags *DeprecatedControllerOptions
EndpointController *EndpointControllerOptions
EndpointSliceController *EndpointSliceControllerOptions
EndpointSliceMirroringController *EndpointSliceMirroringControllerOptions
EphemeralVolumeController *EphemeralVolumeControllerOptions
GarbageCollectorController *GarbageCollectorControllerOptions
HPAController *HPAControllerOptions
JobController *JobControllerOptions
CronJobController *CronJobControllerOptions
LegacySATokenCleaner *LegacySATokenCleanerOptions
NamespaceController *NamespaceControllerOptions
NodeIPAMController *NodeIPAMControllerOptions
NodeLifecycleController *NodeLifecycleControllerOptions
PersistentVolumeBinderController *PersistentVolumeBinderControllerOptions
PodGCController *PodGCControllerOptions
ReplicaSetController *ReplicaSetControllerOptions
ReplicationController *ReplicationControllerOptions
ResourceQuotaController *ResourceQuotaControllerOptions
SAController *SAControllerOptions
TTLAfterFinishedController *TTLAfterFinishedControllerOptions
ValidatingAdmissionPolicyStatusController *ValidatingAdmissionPolicyStatusControllerOptions
SecureServing *apiserveroptions.SecureServingOptionsWithLoopback
Authentication *apiserveroptions.DelegatingAuthenticationOptions
Authorization *apiserveroptions.DelegatingAuthorizationOptions
Metrics *metrics.Options
Logs *logs.Options
Master string
ShowHiddenMetricsForVersion string
// ComponentGlobalsRegistry is the registry where the effective versions and feature gates for all components are stored.
ComponentGlobalsRegistry utilversion.ComponentGlobalsRegistry
}
// NewKubeControllerManagerOptions creates a new KubeControllerManagerOptions with a default config.
func NewKubeControllerManagerOptions() (*KubeControllerManagerOptions, error) {
componentConfig, err := NewDefaultComponentConfig()
if err != nil {
return nil, err
}
if utilversion.DefaultComponentGlobalsRegistry.EffectiveVersionFor(utilversion.DefaultKubeComponent) == nil {
featureGate := utilfeature.DefaultMutableFeatureGate
effectiveVersion := utilversion.DefaultKubeEffectiveVersion()
utilruntime.Must(utilversion.DefaultComponentGlobalsRegistry.Register(utilversion.DefaultKubeComponent, effectiveVersion, featureGate))
}
s := KubeControllerManagerOptions{
Generic: cmoptions.NewGenericControllerManagerConfigurationOptions(&componentConfig.Generic),
KubeCloudShared: cpoptions.NewKubeCloudSharedOptions(&componentConfig.KubeCloudShared),
ServiceController: &cpoptions.ServiceControllerOptions{
ServiceControllerConfiguration: &componentConfig.ServiceController,
},
AttachDetachController: &AttachDetachControllerOptions{
&componentConfig.AttachDetachController,
},
CSRSigningController: &CSRSigningControllerOptions{
&componentConfig.CSRSigningController,
},
DaemonSetController: &DaemonSetControllerOptions{
&componentConfig.DaemonSetController,
},
DeploymentController: &DeploymentControllerOptions{
&componentConfig.DeploymentController,
},
StatefulSetController: &StatefulSetControllerOptions{
&componentConfig.StatefulSetController,
},
DeprecatedFlags: &DeprecatedControllerOptions{
&componentConfig.DeprecatedController,
},
EndpointController: &EndpointControllerOptions{
&componentConfig.EndpointController,
},
EndpointSliceController: &EndpointSliceControllerOptions{
&componentConfig.EndpointSliceController,
},
EndpointSliceMirroringController: &EndpointSliceMirroringControllerOptions{
&componentConfig.EndpointSliceMirroringController,
},
EphemeralVolumeController: &EphemeralVolumeControllerOptions{
&componentConfig.EphemeralVolumeController,
},
GarbageCollectorController: &GarbageCollectorControllerOptions{
&componentConfig.GarbageCollectorController,
},
HPAController: &HPAControllerOptions{
&componentConfig.HPAController,
},
JobController: &JobControllerOptions{
&componentConfig.JobController,
},
CronJobController: &CronJobControllerOptions{
&componentConfig.CronJobController,
},
LegacySATokenCleaner: &LegacySATokenCleanerOptions{
&componentConfig.LegacySATokenCleaner,
},
NamespaceController: &NamespaceControllerOptions{
&componentConfig.NamespaceController,
},
NodeIPAMController: &NodeIPAMControllerOptions{
&componentConfig.NodeIPAMController,
},
NodeLifecycleController: &NodeLifecycleControllerOptions{
&componentConfig.NodeLifecycleController,
},
PersistentVolumeBinderController: &PersistentVolumeBinderControllerOptions{
&componentConfig.PersistentVolumeBinderController,
},
PodGCController: &PodGCControllerOptions{
&componentConfig.PodGCController,
},
ReplicaSetController: &ReplicaSetControllerOptions{
&componentConfig.ReplicaSetController,
},
ReplicationController: &ReplicationControllerOptions{
&componentConfig.ReplicationController,
},
ResourceQuotaController: &ResourceQuotaControllerOptions{
&componentConfig.ResourceQuotaController,
},
SAController: &SAControllerOptions{
&componentConfig.SAController,
},
TTLAfterFinishedController: &TTLAfterFinishedControllerOptions{
&componentConfig.TTLAfterFinishedController,
},
ValidatingAdmissionPolicyStatusController: &ValidatingAdmissionPolicyStatusControllerOptions{
&componentConfig.ValidatingAdmissionPolicyStatusController,
},
SecureServing: apiserveroptions.NewSecureServingOptions().WithLoopback(),
Authentication: apiserveroptions.NewDelegatingAuthenticationOptions(),
Authorization: apiserveroptions.NewDelegatingAuthorizationOptions(),
Metrics: metrics.NewOptions(),
Logs: logs.NewOptions(),
ComponentGlobalsRegistry: utilversion.DefaultComponentGlobalsRegistry,
}
s.Authentication.RemoteKubeConfigFileOptional = true
s.Authorization.RemoteKubeConfigFileOptional = true
// Set the PairName but leave certificate directory blank to generate in-memory by default
s.SecureServing.ServerCert.CertDirectory = ""
s.SecureServing.ServerCert.PairName = "kube-controller-manager"
s.SecureServing.BindPort = ports.KubeControllerManagerPort
gcIgnoredResources := make([]garbagecollectorconfig.GroupResource, 0, len(garbagecollector.DefaultIgnoredResources()))
for r := range garbagecollector.DefaultIgnoredResources() {
gcIgnoredResources = append(gcIgnoredResources, garbagecollectorconfig.GroupResource{Group: r.Group, Resource: r.Resource})
}
s.GarbageCollectorController.GCIgnoredResources = gcIgnoredResources
s.Generic.LeaderElection.ResourceName = "kube-controller-manager"
s.Generic.LeaderElection.ResourceNamespace = "kube-system"
return &s, nil
}
// NewDefaultComponentConfig returns kube-controller manager configuration object.
func NewDefaultComponentConfig() (kubectrlmgrconfig.KubeControllerManagerConfiguration, error) {
versioned := kubectrlmgrconfigv1alpha1.KubeControllerManagerConfiguration{}
kubectrlmgrconfigscheme.Scheme.Default(&versioned)
internal := kubectrlmgrconfig.KubeControllerManagerConfiguration{}
if err := kubectrlmgrconfigscheme.Scheme.Convert(&versioned, &internal, nil); err != nil {
return internal, err
}
return internal, nil
}
// Flags returns flags for a specific KubeController by section name
func (s *KubeControllerManagerOptions) Flags(allControllers []string, disabledByDefaultControllers []string, controllerAliases map[string]string) cliflag.NamedFlagSets {
fss := cliflag.NamedFlagSets{}
s.Generic.AddFlags(&fss, allControllers, disabledByDefaultControllers, controllerAliases)
s.KubeCloudShared.AddFlags(fss.FlagSet("generic"))
s.ServiceController.AddFlags(fss.FlagSet(cpnames.ServiceLBController))
s.SecureServing.AddFlags(fss.FlagSet("secure serving"))
s.Authentication.AddFlags(fss.FlagSet("authentication"))
s.Authorization.AddFlags(fss.FlagSet("authorization"))
s.AttachDetachController.AddFlags(fss.FlagSet(names.PersistentVolumeAttachDetachController))
s.CSRSigningController.AddFlags(fss.FlagSet(names.CertificateSigningRequestSigningController))
s.DeploymentController.AddFlags(fss.FlagSet(names.DeploymentController))
s.StatefulSetController.AddFlags(fss.FlagSet(names.StatefulSetController))
s.DaemonSetController.AddFlags(fss.FlagSet(names.DaemonSetController))
s.DeprecatedFlags.AddFlags(fss.FlagSet("deprecated"))
s.EndpointController.AddFlags(fss.FlagSet(names.EndpointsController))
s.EndpointSliceController.AddFlags(fss.FlagSet(names.EndpointSliceController))
s.EndpointSliceMirroringController.AddFlags(fss.FlagSet(names.EndpointSliceMirroringController))
s.EphemeralVolumeController.AddFlags(fss.FlagSet(names.EphemeralVolumeController))
s.GarbageCollectorController.AddFlags(fss.FlagSet(names.GarbageCollectorController))
s.HPAController.AddFlags(fss.FlagSet(names.HorizontalPodAutoscalerController))
s.JobController.AddFlags(fss.FlagSet(names.JobController))
s.CronJobController.AddFlags(fss.FlagSet(names.CronJobController))
s.LegacySATokenCleaner.AddFlags(fss.FlagSet(names.LegacyServiceAccountTokenCleanerController))
s.NamespaceController.AddFlags(fss.FlagSet(names.NamespaceController))
s.NodeIPAMController.AddFlags(fss.FlagSet(names.NodeIpamController))
s.NodeLifecycleController.AddFlags(fss.FlagSet(names.NodeLifecycleController))
s.PersistentVolumeBinderController.AddFlags(fss.FlagSet(names.PersistentVolumeBinderController))
s.PodGCController.AddFlags(fss.FlagSet(names.PodGarbageCollectorController))
s.ReplicaSetController.AddFlags(fss.FlagSet(names.ReplicaSetController))
s.ReplicationController.AddFlags(fss.FlagSet(names.ReplicationControllerController))
s.ResourceQuotaController.AddFlags(fss.FlagSet(names.ResourceQuotaController))
s.SAController.AddFlags(fss.FlagSet(names.ServiceAccountController))
s.TTLAfterFinishedController.AddFlags(fss.FlagSet(names.TTLAfterFinishedController))
s.ValidatingAdmissionPolicyStatusController.AddFlags(fss.FlagSet(names.ValidatingAdmissionPolicyStatusController))
s.Metrics.AddFlags(fss.FlagSet("metrics"))
logsapi.AddFlags(s.Logs, fss.FlagSet("logs"))
fs := fss.FlagSet("misc")
fs.StringVar(&s.Master, "master", s.Master, "The address of the Kubernetes API server (overrides any value in kubeconfig).")
fs.StringVar(&s.Generic.ClientConnection.Kubeconfig, "kubeconfig", s.Generic.ClientConnection.Kubeconfig, "Path to kubeconfig file with authorization and master location information (the master location can be overridden by the master flag).")
if !utilfeature.DefaultFeatureGate.Enabled(featuregate.Feature(clientgofeaturegate.WatchListClient)) {
if err := utilfeature.DefaultMutableFeatureGate.OverrideDefault(featuregate.Feature(clientgofeaturegate.WatchListClient), true); err != nil {
// it turns out that there are some integration tests that start multiple control plane components which
// share global DefaultFeatureGate/DefaultMutableFeatureGate variables.
// in those cases, the above call will fail (FG already registered and cannot be overridden), and the error will be logged.
klog.Errorf("unable to set %s feature gate, err: %v", clientgofeaturegate.WatchListClient, err)
}
}
s.ComponentGlobalsRegistry.AddFlags(fss.FlagSet("generic"))
return fss
}
// ApplyTo fills up controller manager config with options.
func (s *KubeControllerManagerOptions) ApplyTo(c *kubecontrollerconfig.Config, allControllers []string, disabledByDefaultControllers []string, controllerAliases map[string]string) error {
if err := s.ComponentGlobalsRegistry.SetFallback(); err != nil {
return err
}
if err := s.Generic.ApplyTo(&c.ComponentConfig.Generic, allControllers, disabledByDefaultControllers, controllerAliases); err != nil {
return err
}
if err := s.KubeCloudShared.ApplyTo(&c.ComponentConfig.KubeCloudShared); err != nil {
return err
}
if err := s.AttachDetachController.ApplyTo(&c.ComponentConfig.AttachDetachController); err != nil {
return err
}
if err := s.CSRSigningController.ApplyTo(&c.ComponentConfig.CSRSigningController); err != nil {
return err
}
if err := s.DaemonSetController.ApplyTo(&c.ComponentConfig.DaemonSetController); err != nil {
return err
}
if err := s.DeploymentController.ApplyTo(&c.ComponentConfig.DeploymentController); err != nil {
return err
}
if err := s.StatefulSetController.ApplyTo(&c.ComponentConfig.StatefulSetController); err != nil {
return err
}
if err := s.DeprecatedFlags.ApplyTo(&c.ComponentConfig.DeprecatedController); err != nil {
return err
}
if err := s.EndpointController.ApplyTo(&c.ComponentConfig.EndpointController); err != nil {
return err
}
if err := s.EndpointSliceController.ApplyTo(&c.ComponentConfig.EndpointSliceController); err != nil {
return err
}
if err := s.EndpointSliceMirroringController.ApplyTo(&c.ComponentConfig.EndpointSliceMirroringController); err != nil {
return err
}
if err := s.EphemeralVolumeController.ApplyTo(&c.ComponentConfig.EphemeralVolumeController); err != nil {
return err
}
if err := s.GarbageCollectorController.ApplyTo(&c.ComponentConfig.GarbageCollectorController); err != nil {
return err
}
if err := s.HPAController.ApplyTo(&c.ComponentConfig.HPAController); err != nil {
return err
}
if err := s.JobController.ApplyTo(&c.ComponentConfig.JobController); err != nil {
return err
}
if err := s.CronJobController.ApplyTo(&c.ComponentConfig.CronJobController); err != nil {
return err
}
if err := s.LegacySATokenCleaner.ApplyTo(&c.ComponentConfig.LegacySATokenCleaner); err != nil {
return err
}
if err := s.NamespaceController.ApplyTo(&c.ComponentConfig.NamespaceController); err != nil {
return err
}
if err := s.NodeIPAMController.ApplyTo(&c.ComponentConfig.NodeIPAMController); err != nil {
return err
}
if err := s.NodeLifecycleController.ApplyTo(&c.ComponentConfig.NodeLifecycleController); err != nil {
return err
}
if err := s.PersistentVolumeBinderController.ApplyTo(&c.ComponentConfig.PersistentVolumeBinderController); err != nil {
return err
}
if err := s.PodGCController.ApplyTo(&c.ComponentConfig.PodGCController); err != nil {
return err
}
if err := s.ReplicaSetController.ApplyTo(&c.ComponentConfig.ReplicaSetController); err != nil {
return err
}
if err := s.ReplicationController.ApplyTo(&c.ComponentConfig.ReplicationController); err != nil {
return err
}
if err := s.ResourceQuotaController.ApplyTo(&c.ComponentConfig.ResourceQuotaController); err != nil {
return err
}
if err := s.SAController.ApplyTo(&c.ComponentConfig.SAController); err != nil {
return err
}
if err := s.ServiceController.ApplyTo(&c.ComponentConfig.ServiceController); err != nil {
return err
}
if err := s.TTLAfterFinishedController.ApplyTo(&c.ComponentConfig.TTLAfterFinishedController); err != nil {
return err
}
if err := s.ValidatingAdmissionPolicyStatusController.ApplyTo(&c.ComponentConfig.ValidatingAdmissionPolicyStatusController); err != nil {
return err
}
if err := s.SecureServing.ApplyTo(&c.SecureServing, &c.LoopbackClientConfig); err != nil {
return err
}
if s.SecureServing.BindPort != 0 || s.SecureServing.Listener != nil {
if err := s.Authentication.ApplyTo(&c.Authentication, c.SecureServing, nil); err != nil {
return err
}
if err := s.Authorization.ApplyTo(&c.Authorization); err != nil {
return err
}
}
return nil
}
// Validate is used to validate the options and config before launching the controller manager
func (s *KubeControllerManagerOptions) Validate(allControllers []string, disabledByDefaultControllers []string, controllerAliases map[string]string) error {
var errs []error
if err := s.ComponentGlobalsRegistry.SetFallback(); err != nil {
errs = append(errs, err)
}
errs = append(errs, s.ComponentGlobalsRegistry.Validate()...)
errs = append(errs, s.Generic.Validate(allControllers, disabledByDefaultControllers, controllerAliases)...)
errs = append(errs, s.KubeCloudShared.Validate()...)
errs = append(errs, s.AttachDetachController.Validate()...)
errs = append(errs, s.CSRSigningController.Validate()...)
errs = append(errs, s.DaemonSetController.Validate()...)
errs = append(errs, s.DeploymentController.Validate()...)
errs = append(errs, s.StatefulSetController.Validate()...)
errs = append(errs, s.DeprecatedFlags.Validate()...)
errs = append(errs, s.EndpointController.Validate()...)
errs = append(errs, s.EndpointSliceController.Validate()...)
errs = append(errs, s.EndpointSliceMirroringController.Validate()...)
errs = append(errs, s.EphemeralVolumeController.Validate()...)
errs = append(errs, s.GarbageCollectorController.Validate()...)
errs = append(errs, s.HPAController.Validate()...)
errs = append(errs, s.JobController.Validate()...)
errs = append(errs, s.CronJobController.Validate()...)
errs = append(errs, s.LegacySATokenCleaner.Validate()...)
errs = append(errs, s.NamespaceController.Validate()...)
errs = append(errs, s.NodeIPAMController.Validate()...)
errs = append(errs, s.NodeLifecycleController.Validate()...)
errs = append(errs, s.PersistentVolumeBinderController.Validate()...)
errs = append(errs, s.PodGCController.Validate()...)
errs = append(errs, s.ReplicaSetController.Validate()...)
errs = append(errs, s.ReplicationController.Validate()...)
errs = append(errs, s.ResourceQuotaController.Validate()...)
errs = append(errs, s.SAController.Validate()...)
errs = append(errs, s.ServiceController.Validate()...)
errs = append(errs, s.TTLAfterFinishedController.Validate()...)
errs = append(errs, s.SecureServing.Validate()...)
errs = append(errs, s.Authentication.Validate()...)
errs = append(errs, s.Authorization.Validate()...)
errs = append(errs, s.Metrics.Validate()...)
errs = append(errs, utilversion.ValidateKubeEffectiveVersion(s.ComponentGlobalsRegistry.EffectiveVersionFor(utilversion.DefaultKubeComponent)))
// in-tree cloud providers are disabled since v1.31 (KEP-2395)
if len(s.KubeCloudShared.CloudProvider.Name) > 0 && !cloudprovider.IsExternal(s.KubeCloudShared.CloudProvider.Name) {
cloudprovider.DisableWarningForProvider(s.KubeCloudShared.CloudProvider.Name)
errs = append(errs, cloudprovider.ErrorForDisabledProvider(s.KubeCloudShared.CloudProvider.Name))
}
if len(s.KubeCloudShared.CIDRAllocatorType) > 0 && s.KubeCloudShared.CIDRAllocatorType != string(ipam.RangeAllocatorType) {
errs = append(errs, fmt.Errorf("built-in cloud providers are disabled. The ipam %s is not available", s.KubeCloudShared.CIDRAllocatorType))
}
// TODO: validate component config, master and kubeconfig
return utilerrors.NewAggregate(errs)
}
// Config return a controller manager config objective
func (s KubeControllerManagerOptions) Config(allControllers []string, disabledByDefaultControllers []string, controllerAliases map[string]string) (*kubecontrollerconfig.Config, error) {
if err := s.Validate(allControllers, disabledByDefaultControllers, controllerAliases); err != nil {
return nil, err
}
if err := s.SecureServing.MaybeDefaultWithSelfSignedCerts("localhost", nil, []net.IP{netutils.ParseIPSloppy("127.0.0.1")}); err != nil {
return nil, fmt.Errorf("error creating self-signed certificates: %v", err)
}
kubeconfig, err := clientcmd.BuildConfigFromFlags(s.Master, s.Generic.ClientConnection.Kubeconfig)
if err != nil {
return nil, err
}
kubeconfig.DisableCompression = true
kubeconfig.ContentConfig.AcceptContentTypes = s.Generic.ClientConnection.AcceptContentTypes
kubeconfig.ContentConfig.ContentType = s.Generic.ClientConnection.ContentType
kubeconfig.QPS = s.Generic.ClientConnection.QPS
kubeconfig.Burst = int(s.Generic.ClientConnection.Burst)
client, err := clientset.NewForConfig(restclient.AddUserAgent(kubeconfig, KubeControllerManagerUserAgent))
if err != nil {
return nil, err
}
eventBroadcaster := record.NewBroadcaster()
eventRecorder := eventBroadcaster.NewRecorder(clientgokubescheme.Scheme, v1.EventSource{Component: KubeControllerManagerUserAgent})
c := &kubecontrollerconfig.Config{
Client: client,
Kubeconfig: kubeconfig,
EventBroadcaster: eventBroadcaster,
EventRecorder: eventRecorder,
}
if err := s.ApplyTo(c, allControllers, disabledByDefaultControllers, controllerAliases); err != nil {
return nil, err
}
s.Metrics.Apply()
return c, nil
}