add leader election to controller manager

vendor/k8s.io/apiserver/pkg/apis/config/doc.go

@@ -0,0 +1,19 @@
+/*
+Copyright 2018 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.
+*/
+
+// +k8s:deepcopy-gen=package
+
+package config // import "k8s.io/apiserver/pkg/apis/config"

vendor/k8s.io/apiserver/pkg/apis/config/register.go

@@ -0,0 +1,53 @@
+/*
+Copyright 2018 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 config
+
+import (
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+)
+
+var (
+	// SchemeBuilder points to a list of functions added to Scheme.
+	SchemeBuilder = runtime.NewSchemeBuilder(addKnownTypes)
+	// AddToScheme adds this group to a scheme.
+	AddToScheme = SchemeBuilder.AddToScheme
+)
+
+// GroupName is the group name use in this package.
+const GroupName = "apiserver.config.k8s.io"
+
+// SchemeGroupVersion is group version used to register these objects.
+var SchemeGroupVersion = schema.GroupVersion{Group: GroupName, Version: runtime.APIVersionInternal}
+
+// Kind takes an unqualified kind and returns a Group qualified GroupKind.
+func Kind(kind string) schema.GroupKind {
+	return SchemeGroupVersion.WithKind(kind).GroupKind()
+}
+
+// Resource takes an unqualified resource and returns a Group qualified GroupResource.
+func Resource(resource string) schema.GroupResource {
+	return SchemeGroupVersion.WithResource(resource).GroupResource()
+}
+
+func addKnownTypes(scheme *runtime.Scheme) error {
+	// TODO this will get cleaned up with the scheme types are fixed
+	scheme.AddKnownTypes(SchemeGroupVersion,
+		&EncryptionConfiguration{},
+	)
+	return nil
+}

vendor/k8s.io/apiserver/pkg/apis/config/types.go

@@ -0,0 +1,126 @@
+/*
+Copyright 2018 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 config
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// LeaderElectionConfiguration defines the configuration of leader election
+// clients for components that can run with leader election enabled.
+type LeaderElectionConfiguration struct {
+	// leaderElect enables a leader election client to gain leadership
+	// before executing the main loop. Enable this when running replicated
+	// components for high availability.
+	LeaderElect bool
+	// leaseDuration is the duration that non-leader candidates will wait
+	// after observing a leadership renewal until attempting to acquire
+	// leadership of a led but unrenewed leader slot. This is effectively the
+	// maximum duration that a leader can be stopped before it is replaced
+	// by another candidate. This is only applicable if leader election is
+	// enabled.
+	LeaseDuration metav1.Duration
+	// renewDeadline is the interval between attempts by the acting master to
+	// renew a leadership slot before it stops leading. This must be less
+	// than or equal to the lease duration. This is only applicable if leader
+	// election is enabled.
+	RenewDeadline metav1.Duration
+	// retryPeriod is the duration the clients should wait between attempting
+	// acquisition and renewal of a leadership. This is only applicable if
+	// leader election is enabled.
+	RetryPeriod metav1.Duration
+	// resourceLock indicates the resource object type that will be used to lock
+	// during leader election cycles.
+	ResourceLock string
+}
+
+// DebuggingConfiguration holds configuration for Debugging related features.
+type DebuggingConfiguration struct {
+	// enableProfiling enables profiling via web interface host:port/debug/pprof/
+	EnableProfiling bool
+	// enableContentionProfiling enables lock contention profiling, if
+	// enableProfiling is true.
+	EnableContentionProfiling bool
+}
+
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// EncryptionConfiguration stores the complete configuration for encryption providers.
+type EncryptionConfiguration struct {
+	metav1.TypeMeta
+	// resources is a list containing resources, and their corresponding encryption providers.
+	Resources []ResourceConfiguration
+}
+
+// ResourceConfiguration stores per resource configuration.
+type ResourceConfiguration struct {
+	// resources is a list of kubernetes resources which have to be encrypted.
+	Resources []string
+	// providers is a list of transformers to be used for reading and writing the resources to disk.
+	// eg: aesgcm, aescbc, secretbox, identity.
+	Providers []ProviderConfiguration
+}
+
+// ProviderConfiguration stores the provided configuration for an encryption provider.
+type ProviderConfiguration struct {
+	// aesgcm is the configuration for the AES-GCM transformer.
+	AESGCM *AESConfiguration
+	// aescbc is the configuration for the AES-CBC transformer.
+	AESCBC *AESConfiguration
+	// secretbox is the configuration for the Secretbox based transformer.
+	Secretbox *SecretboxConfiguration
+	// identity is the (empty) configuration for the identity transformer.
+	Identity *IdentityConfiguration
+	// kms contains the name, cache size and path to configuration file for a KMS based envelope transformer.
+	KMS *KMSConfiguration
+}
+
+// AESConfiguration contains the API configuration for an AES transformer.
+type AESConfiguration struct {
+	// keys is a list of keys to be used for creating the AES transformer.
+	// Each key has to be 32 bytes long for AES-CBC and 16, 24 or 32 bytes for AES-GCM.
+	Keys []Key
+}
+
+// SecretboxConfiguration contains the API configuration for an Secretbox transformer.
+type SecretboxConfiguration struct {
+	// keys is a list of keys to be used for creating the Secretbox transformer.
+	// Each key has to be 32 bytes long.
+	Keys []Key
+}
+
+// Key contains name and secret of the provided key for a transformer.
+type Key struct {
+	// name is the name of the key to be used while storing data to disk.
+	Name string
+	// secret is the actual key, encoded in base64.
+	Secret string
+}
+
+// IdentityConfiguration is an empty struct to allow identity transformer in provider configuration.
+type IdentityConfiguration struct{}
+
+// KMSConfiguration contains the name, cache size and path to configuration file for a KMS based envelope transformer.
+type KMSConfiguration struct {
+	// name is the name of the KMS plugin to be used.
+	Name string
+	// cacheSize is the maximum number of secrets which are cached in memory. The default value is 1000.
+	// +optional
+	CacheSize int32
+	// endpoint is the gRPC server listening address, for example "unix:///var/run/kms-provider.sock".
+	Endpoint string
+}

vendor/k8s.io/apiserver/pkg/apis/config/zz_generated.deepcopy.go

@@ -0,0 +1,251 @@
+// +build !ignore_autogenerated
+
+/*
+Copyright 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.
+*/
+
+// Code generated by deepcopy-gen. DO NOT EDIT.
+
+package config
+
+import (
+	runtime "k8s.io/apimachinery/pkg/runtime"
+)
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *AESConfiguration) DeepCopyInto(out *AESConfiguration) {
+	*out = *in
+	if in.Keys != nil {
+		in, out := &in.Keys, &out.Keys
+		*out = make([]Key, len(*in))
+		copy(*out, *in)
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new AESConfiguration.
+func (in *AESConfiguration) DeepCopy() *AESConfiguration {
+	if in == nil {
+		return nil
+	}
+	out := new(AESConfiguration)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *DebuggingConfiguration) DeepCopyInto(out *DebuggingConfiguration) {
+	*out = *in
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new DebuggingConfiguration.
+func (in *DebuggingConfiguration) DeepCopy() *DebuggingConfiguration {
+	if in == nil {
+		return nil
+	}
+	out := new(DebuggingConfiguration)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *EncryptionConfiguration) DeepCopyInto(out *EncryptionConfiguration) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	if in.Resources != nil {
+		in, out := &in.Resources, &out.Resources
+		*out = make([]ResourceConfiguration, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new EncryptionConfiguration.
+func (in *EncryptionConfiguration) DeepCopy() *EncryptionConfiguration {
+	if in == nil {
+		return nil
+	}
+	out := new(EncryptionConfiguration)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *EncryptionConfiguration) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *IdentityConfiguration) DeepCopyInto(out *IdentityConfiguration) {
+	*out = *in
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new IdentityConfiguration.
+func (in *IdentityConfiguration) DeepCopy() *IdentityConfiguration {
+	if in == nil {
+		return nil
+	}
+	out := new(IdentityConfiguration)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *KMSConfiguration) DeepCopyInto(out *KMSConfiguration) {
+	*out = *in
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new KMSConfiguration.
+func (in *KMSConfiguration) DeepCopy() *KMSConfiguration {
+	if in == nil {
+		return nil
+	}
+	out := new(KMSConfiguration)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *Key) DeepCopyInto(out *Key) {
+	*out = *in
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Key.
+func (in *Key) DeepCopy() *Key {
+	if in == nil {
+		return nil
+	}
+	out := new(Key)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *LeaderElectionConfiguration) DeepCopyInto(out *LeaderElectionConfiguration) {
+	*out = *in
+	out.LeaseDuration = in.LeaseDuration
+	out.RenewDeadline = in.RenewDeadline
+	out.RetryPeriod = in.RetryPeriod
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new LeaderElectionConfiguration.
+func (in *LeaderElectionConfiguration) DeepCopy() *LeaderElectionConfiguration {
+	if in == nil {
+		return nil
+	}
+	out := new(LeaderElectionConfiguration)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *ProviderConfiguration) DeepCopyInto(out *ProviderConfiguration) {
+	*out = *in
+	if in.AESGCM != nil {
+		in, out := &in.AESGCM, &out.AESGCM
+		*out = new(AESConfiguration)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.AESCBC != nil {
+		in, out := &in.AESCBC, &out.AESCBC
+		*out = new(AESConfiguration)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.Secretbox != nil {
+		in, out := &in.Secretbox, &out.Secretbox
+		*out = new(SecretboxConfiguration)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.Identity != nil {
+		in, out := &in.Identity, &out.Identity
+		*out = new(IdentityConfiguration)
+		**out = **in
+	}
+	if in.KMS != nil {
+		in, out := &in.KMS, &out.KMS
+		*out = new(KMSConfiguration)
+		**out = **in
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ProviderConfiguration.
+func (in *ProviderConfiguration) DeepCopy() *ProviderConfiguration {
+	if in == nil {
+		return nil
+	}
+	out := new(ProviderConfiguration)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *ResourceConfiguration) DeepCopyInto(out *ResourceConfiguration) {
+	*out = *in
+	if in.Resources != nil {
+		in, out := &in.Resources, &out.Resources
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
+	if in.Providers != nil {
+		in, out := &in.Providers, &out.Providers
+		*out = make([]ProviderConfiguration, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ResourceConfiguration.
+func (in *ResourceConfiguration) DeepCopy() *ResourceConfiguration {
+	if in == nil {
+		return nil
+	}
+	out := new(ResourceConfiguration)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *SecretboxConfiguration) DeepCopyInto(out *SecretboxConfiguration) {
+	*out = *in
+	if in.Keys != nil {
+		in, out := &in.Keys, &out.Keys
+		*out = make([]Key, len(*in))
+		copy(*out, *in)
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new SecretboxConfiguration.
+func (in *SecretboxConfiguration) DeepCopy() *SecretboxConfiguration {
+	if in == nil {
+		return nil
+	}
+	out := new(SecretboxConfiguration)
+	in.DeepCopyInto(out)
+	return out
+}

vendor/k8s.io/component-base/config/OWNERS

@@ -0,0 +1,14 @@
+# See the OWNERS docs at https://go.k8s.io/owners
+
+# Disable inheritance as this is an api owners file
+options:
+  no_parent_owners: true
+approvers:
+- api-approvers
+reviewers:
+- api-reviewers
+- luxas
+- mtaufen
+- sttts
+labels:
+- kind/api-change

vendor/k8s.io/component-base/config/doc.go

@@ -0,0 +1,19 @@
+/*
+Copyright 2018 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.
+*/
+
+// +k8s:deepcopy-gen=package
+
+package config // import "k8s.io/component-base/config"

vendor/k8s.io/component-base/config/types.go

@@ -0,0 +1,80 @@
+/*
+Copyright 2018 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 config
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// ClientConnectionConfiguration contains details for constructing a client.
+type ClientConnectionConfiguration struct {
+	// kubeconfig is the path to a KubeConfig file.
+	Kubeconfig string
+	// acceptContentTypes defines the Accept header sent by clients when connecting to a server, overriding the
+	// default value of 'application/json'. This field will control all connections to the server used by a particular
+	// client.
+	AcceptContentTypes string
+	// contentType is the content type used when sending data to the server from this client.
+	ContentType string
+	// qps controls the number of queries per second allowed for this connection.
+	QPS float32
+	// burst allows extra queries to accumulate when a client is exceeding its rate.
+	Burst int32
+}
+
+// LeaderElectionConfiguration defines the configuration of leader election
+// clients for components that can run with leader election enabled.
+type LeaderElectionConfiguration struct {
+	// leaderElect enables a leader election client to gain leadership
+	// before executing the main loop. Enable this when running replicated
+	// components for high availability.
+	LeaderElect bool
+	// leaseDuration is the duration that non-leader candidates will wait
+	// after observing a leadership renewal until attempting to acquire
+	// leadership of a led but unrenewed leader slot. This is effectively the
+	// maximum duration that a leader can be stopped before it is replaced
+	// by another candidate. This is only applicable if leader election is
+	// enabled.
+	LeaseDuration metav1.Duration
+	// renewDeadline is the interval between attempts by the acting master to
+	// renew a leadership slot before it stops leading. This must be less
+	// than or equal to the lease duration. This is only applicable if leader
+	// election is enabled.
+	RenewDeadline metav1.Duration
+	// retryPeriod is the duration the clients should wait between attempting
+	// acquisition and renewal of a leadership. This is only applicable if
+	// leader election is enabled.
+	RetryPeriod metav1.Duration
+	// resourceLock indicates the resource object type that will be used to lock
+	// during leader election cycles.
+	ResourceLock string
+	// resourceName indicates the name of resource object that will be used to lock
+	// during leader election cycles.
+	ResourceName string
+	// resourceName indicates the namespace of resource object that will be used to lock
+	// during leader election cycles.
+	ResourceNamespace string
+}
+
+// DebuggingConfiguration holds configuration for Debugging related features.
+type DebuggingConfiguration struct {
+	// enableProfiling enables profiling via web interface host:port/debug/pprof/
+	EnableProfiling bool
+	// enableContentionProfiling enables lock contention profiling, if
+	// enableProfiling is true.
+	EnableContentionProfiling bool
+}

vendor/k8s.io/component-base/config/zz_generated.deepcopy.go

@@ -0,0 +1,72 @@
+// +build !ignore_autogenerated
+
+/*
+Copyright 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.
+*/
+
+// Code generated by deepcopy-gen. DO NOT EDIT.
+
+package config
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *ClientConnectionConfiguration) DeepCopyInto(out *ClientConnectionConfiguration) {
+	*out = *in
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ClientConnectionConfiguration.
+func (in *ClientConnectionConfiguration) DeepCopy() *ClientConnectionConfiguration {
+	if in == nil {
+		return nil
+	}
+	out := new(ClientConnectionConfiguration)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *DebuggingConfiguration) DeepCopyInto(out *DebuggingConfiguration) {
+	*out = *in
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new DebuggingConfiguration.
+func (in *DebuggingConfiguration) DeepCopy() *DebuggingConfiguration {
+	if in == nil {
+		return nil
+	}
+	out := new(DebuggingConfiguration)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *LeaderElectionConfiguration) DeepCopyInto(out *LeaderElectionConfiguration) {
+	*out = *in
+	out.LeaseDuration = in.LeaseDuration
+	out.RenewDeadline = in.RenewDeadline
+	out.RetryPeriod = in.RetryPeriod
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new LeaderElectionConfiguration.
+func (in *LeaderElectionConfiguration) DeepCopy() *LeaderElectionConfiguration {
+	if in == nil {
+		return nil
+	}
+	out := new(LeaderElectionConfiguration)
+	in.DeepCopyInto(out)
+	return out
+}

vendor/k8s.io/kubernetes/pkg/client/leaderelectionconfig/BUILD

@@ -0,0 +1,29 @@
+package(default_visibility = ["//visibility:public"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = ["config.go"],
+    importpath = "k8s.io/kubernetes/pkg/client/leaderelectionconfig",
+    deps = [
+        "//staging/src/k8s.io/apiserver/pkg/apis/config:go_default_library",
+        "//vendor/github.com/spf13/pflag:go_default_library",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+)

vendor/k8s.io/kubernetes/pkg/client/leaderelectionconfig/config.go

@@ -0,0 +1,53 @@
+/*
+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 leaderelectionconfig
+
+import (
+	"time"
+
+	"github.com/spf13/pflag"
+	apiserverconfig "k8s.io/apiserver/pkg/apis/config"
+)
+
+const (
+	// DefaultLeaseDuration defines a default duration of lease.
+	DefaultLeaseDuration = 15 * time.Second
+)
+
+// BindFlags binds the LeaderElectionConfiguration struct fields to a flagset
+func BindFlags(l *apiserverconfig.LeaderElectionConfiguration, fs *pflag.FlagSet) {
+	fs.BoolVar(&l.LeaderElect, "leader-elect", l.LeaderElect, ""+
+		"Start a leader election client and gain leadership before "+
+		"executing the main loop. Enable this when running replicated "+
+		"components for high availability.")
+	fs.DurationVar(&l.LeaseDuration.Duration, "leader-elect-lease-duration", l.LeaseDuration.Duration, ""+
+		"The duration that non-leader candidates will wait after observing a leadership "+
+		"renewal until attempting to acquire leadership of a led but unrenewed leader "+
+		"slot. This is effectively the maximum duration that a leader can be stopped "+
+		"before it is replaced by another candidate. This is only applicable if leader "+
+		"election is enabled.")
+	fs.DurationVar(&l.RenewDeadline.Duration, "leader-elect-renew-deadline", l.RenewDeadline.Duration, ""+
+		"The interval between attempts by the acting master to renew a leadership slot "+
+		"before it stops leading. This must be less than or equal to the lease duration. "+
+		"This is only applicable if leader election is enabled.")
+	fs.DurationVar(&l.RetryPeriod.Duration, "leader-elect-retry-period", l.RetryPeriod.Duration, ""+
+		"The duration the clients should wait between attempting acquisition and renewal "+
+		"of a leadership. This is only applicable if leader election is enabled.")
+	fs.StringVar(&l.ResourceLock, "leader-elect-resource-lock", l.ResourceLock, ""+
+		"The type of resource object that is used for locking during "+
+		"leader election. Supported options are `endpoints` (default) and `configmaps`.")
+}