专栏首页Kuberneteskube-controller-manager最佳配置

kube-controller-manager最佳配置

kubernetes version: 1.6.2

Kube-controller-manager Configuration

kube-controller-manager一共有72个flag配置,具体如下:

flag

value

default value

comments

--address ip

0.0.0.0

The IP address to serve on (set to 0.0.0.0 for all interfaces) (default 0.0.0.0)

--allocate-node-cidrs

Should CIDRs for Pods be allocated and set on the cloud provider.

--attach-detach-reconcile-sync-period duration

1m0s

The reconciler sync wait time between volume attach detach. This duration must be larger than one second, and increasing this value from the default may allow for volumes to be mismatched with pods. (default 1m0s)

--azure-container-registry-config string

Path to the file container Azure container registry configuration information.

--cloud-config string

The path to the cloud provider configuration file. Empty string for no configuration file.

--cloud-provider string

The provider for cloud services. Empty string for no provider.

--cluster-cidr string

CIDR Range for Pods in cluster.

--cluster-name string

kubernetes

The instance prefix for the cluster (default "kubernetes")

--cluster-signing-cert-file string

/etc/kubernetes/ca/ca.pem

Filename containing a PEM-encoded X509 CA certificate used to issue cluster-scoped certificates (default "/etc/kubernetes/ca/ca.pem")

--cluster-signing-key-file string

/etc/kubernetes/ca/ca.key

Filename containing a PEM-encoded RSA or ECDSA private key used to sign cluster-scoped certificates (default "/etc/kubernetes/ca/ca.key")

--concurrent-deployment-syncs int32

5

The number of deployment objects that are allowed to sync concurrently. Larger number = more responsive deployments, but more CPU (and network) load (default 5)

--concurrent-endpoint-syncs int32

5

The number of endpoint syncing operations that will be done concurrently. Larger number = faster endpoint updating, but more CPU (and network) load (default 5)

--concurrent-gc-syncs int32

20

The number of garbage collector workers that are allowed to sync concurrently. (default 20)

--concurrent-namespace-syncs int32

2

The number of namespace objects that are allowed to sync concurrently. Larger number = more responsive namespace termination, but more CPU (and network) load (default 2)

--concurrent-replicaset-syncs int32

5

The number of replica sets that are allowed to sync concurrently. Larger number = more responsive replica management, but more CPU (and network) load (default 5)

--concurrent-resource-quota-syncs int32

5

The number of resource quotas that are allowed to sync concurrently. Larger number = more responsive quota management, but more CPU (and network) load (default 5)

--concurrent-service-syncs int32

1

The number of services that are allowed to sync concurrently. Larger number = more responsive service management, but more CPU (and network) load (default 1)

--concurrent-serviceaccount-token-syncs int32

5

The number of service account token objects that are allowed to sync concurrently. Larger number = more responsive token generation, but more CPU (and network) load (default 5)

--concurrent-rc-syncs int32

5

The number of replication controllers that are allowed to sync concurrently. Larger number = more responsive replica management, but more CPU (and network) load (default 5)

--configure-cloud-routes

true

Should CIDRs allocated by allocate-node-cidrs be configured on the cloud provider. (default true)

--contention-profiling

Enable lock contention profiling, if profiling is enabled

--controller-start-interval duration

Interval between starting controller managers.

--controllers stringSlice

*

A list of controllers to enable. '*' enables all on-by-default controllers, 'foo' enables the controller named 'foo', '-foo' disables the controller named 'foo'. <br/> All controllers: attachdetach, bootstrapsigner, certificatesigningrequests, cronjob, daemonset, deployment, disruption, endpoint, garbagecollector, horizontalpodautoscaling, job, namespace, node, persistentvolume-binder, podgc, replicaset, replicationcontroller, resourcequota, route, service, serviceaccount, serviceaccount-token, statefuleset, tokencleaner, ttl <br/> Disabled-by-default controllers: bootstrapsigner, tokencleaner (default [*])

--deployment-controller-sync-period duration

30s

Period for syncing the deployments. (default 30s)

--disable-attach-detach-reconcile-sync

Disable volume attach detach reconciler sync. Disabling this may cause volumes to be mismatched with pods. Use wisely.

--enable-dynamic-provisioning

true

Enable dynamic provisioning for environments that support it. (default true)

--enable-garbage-collector

true

Enables the generic garbage collector. MUST be synced with the corresponding flag of the kube-apiserver. (default true)

--enable-hostpath-provisioner

Enable HostPath PV provisioning when running without a cloud provider. This allows testing and development of provisioning features. HostPath provisioning is not supported in any way, won't work in a multi-node cluster, and should not be used for anything other than testing or development.

--enable-taint-manager

true

WARNING: Beta feature. If set to true, enables NoExecute Taints and will evict all not-tolerating Pods running on Nodes tainted with these kinds of Taints. (default true)

--feature-gates mapStringBool

A set of key=value pairs that describe feature gates for alpha/experimental features. Options are: <br/> Accelerators=true

--flex-volume-plugin-dir string

/usr/libexec/kubernetes/kubelet-plugins/volume/exec/

Full path of the directory in which the flex volume plugin should search for additional third party volume plugins. (default "/usr/libexec/kubernetes/kubelet-plugins/volume/exec/")

--google-json-key string

The Google Cloud Platform Service Account JSON Key to use for authentication.

--horizontal-pod-autoscaler-sync-period duration

30s

The period for syncing the number of pods in horizontal pod autoscaler. (default 30s)

--horizontal-pod-autoscaler-use-rest-clients

WARNING: alpha feature. If set to true, causes the horizontal pod autoscaler controller to use REST clients through the kube-aggregator, instead of using the legacy metrics client through the API server proxy. This is required for custom metrics support in the horizonal pod autoscaler.

--insecure-experimental-approve-all-kubelet-csrs-for-group string

The group for which the controller-manager will auto approve all CSRs for kubelet client certificates.

--kube-api-burst int32

30

Burst to use while talking with kubernetes apiserver (default 30)

--kube-api-content-type string

application/vnd.kubernetes.protobuf

Content type of requests sent to apiserver. (default "application/vnd.kubernetes.protobuf")

--kube-api-qps float32

20

QPS to use while talking with kubernetes apiserver (default 20)

--kubeconfig string

Path to kubeconfig file with authorization and master location information.

--large-cluster-size-threshold int32

50

Number of nodes from which NodeController treats the cluster as large for the eviction logic purposes. --secondary-node-eviction-rate is implicitly overridden to 0 for clusters this size or smaller. (default 50)

--leader-elect

true

Start a leader election client and gain leadership before executing the main loop. Enable this when running replicated components for high availability. (default true)

--leader-elect-lease-duration duration

15s

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. (default 15s)

--leader-elect-renew-deadline duration

10s

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. (default 10s)

--leader-elect-retry-period duration

2s

The duration the clients should wait between attempting acquisition and renewal of a leadership. This is only applicable if leader election is enabled. (default 2s)

--master string

The address of the Kubernetes API server (overrides any value in kubeconfig)

--min-resync-period duration

12h0m0

The resync period in reflectors will be random between MinResyncPeriod and 2*MinResyncPeriod (default 12h0m0s)

--namespace-sync-period duration

5m0s

The period for syncing namespace life-cycle updates (default 5m0s)

--node-cidr-mask-size int32

24

Mask size for node cidr in cluster. (default 24)

--node-eviction-rate float32

0.1

Number of nodes per second on which pods are deleted in case of node failure when a zone is healthy (see --unhealthy-zone-threshold for definition of healthy/unhealthy). Zone refers to entire cluster in non-multizone clusters. (default 0.1)

--node-monitor-grace-period duration

40s

Amount of time which we allow running Node to be unresponsive before marking it unhealthy. Must be N times more than kubelet's nodeStatusUpdateFrequency, where N means number of retries allowed for kubelet to post node status. (default 40s)

--node-monitor-period duration

5s

The period for syncing NodeStatus in NodeController. (default 5s)

--node-startup-grace-period duration

1m0s

Amount of time which we allow starting Node to be unresponsive before marking it unhealthy. (default 1m0s)

--pod-eviction-timeout duration

5m0s

The grace period for deleting pods on failed nodes. (default 5m0s)

--port int32

10252

The port that the controller-manager's http service runs on (default 10252)

--profiling

true

Enable profiling via web interface host:port/debug/pprof/ (default true)

--pv-recycler-increment-timeout-nfs int32

30

the increment of time added per Gi to ActiveDeadlineSeconds for an NFS scrubber pod (default 30)

--pv-recycler-minimum-timeout-hostpath int32

60

The minimum ActiveDeadlineSeconds to use for a HostPath Recycler pod. This is for development and testing only and will not work in a multi-node cluster. (default 60)

--pv-recycler-minimum-timeout-nfs int32

300

The minimum ActiveDeadlineSeconds to use for an NFS Recycler pod (default 300)

--pv-recycler-pod-template-filepath-hostpath string

The file path to a pod definition used as a template for HostPath persistent volume recycling. This is for development and testing only and will not work in a multi-node cluster.

--pv-recycler-pod-template-filepath-nfs string

The file path to a pod definition used as a template for NFS persistent volume recycling

--pv-recycler-timeout-increment-hostpath int32

30

the increment of time added per Gi to ActiveDeadlineSeconds for a HostPath scrubber pod. This is for development and testing only and will not work in a multi-node cluster. (default 30)

--pvclaimbinder-sync-period duration

15s

The period for syncing persistent volumes and persistent volume claims (default 15s)

--resource-quota-sync-period duration

5m0s

The period for syncing quota usage status in the system (default 5m0s)

--root-ca-file string

If set, this root certificate authority will be included in service account's token secret. This must be a valid PEM-encoded CA bundle.

--route-reconciliation-period duration

10s

The period for reconciling routes created for Nodes by cloud provider. (default 10s)

--secondary-node-eviction-rate float32

0.01

Number of nodes per second on which pods are deleted in case of node failure when a zone is unhealthy (see --unhealthy-zone-threshold for definition of healthy/unhealthy). Zone refers to entire cluster in non-multizone clusters. This value is implicitly overridden to 0 if the cluster size is smaller than --large-cluster-size-threshold. (default 0.01)

--service-account-private-key-file string

Filename containing a PEM-encoded private RSA or ECDSA key used to sign service account tokens.

--service-cluster-ip-range string

CIDR Range for Services in cluster.

--service-sync-period duration

5m0s

The period for syncing services with their external load balancers (default 5m0s)

--terminated-pod-gc-threshold int32

12500

Number of terminated pods that can exist before the terminated pod garbage collector starts deleting terminated pods. If <= 0, the terminated pod garbage collector is disabled. (default 12500)

--unhealthy-zone-threshold float32

0.55

Fraction of Nodes in a zone which needs to be not Ready (minimum 3) for zone to be treated as unhealthy. (default 0.55)

--use-service-account-credentials

If true, use individual service account credentials for each controller.

kube-controller-manager Configuration We Should First Care About

在72个flag中,我梳理出了我们私有云环境需要注意或配置的项,如下表所示。

flag

value

default value

comments

--address ip

0.0.0.0

The IP address to serve on (set to 0.0.0.0 for all interfaces) (default 0.0.0.0)

--attach-detach-reconcile-sync-period duration

1m0s

The reconciler sync wait time between volume attach detach. This duration must be larger than one second, and increasing this value from the default may allow for volumes to be mismatched with pods. (default 1m0s)

--cluster-cidr string

CIDR Range for Pods in cluster.

--cluster-name string

kubernetes

The instance prefix for the cluster (default "kubernetes")

--cluster-signing-cert-file string

/etc/kubernetes/ca/ca.pem

Filename containing a PEM-encoded X509 CA certificate used to issue cluster-scoped certificates (default "/etc/kubernetes/ca/ca.pem")

--cluster-signing-key-file string

/etc/kubernetes/ca/ca.key

Filename containing a PEM-encoded RSA or ECDSA private key used to sign cluster-scoped certificates (default "/etc/kubernetes/ca/ca.key")

--contention-profiling

Enable lock contention profiling, if profiling is enabled

--enable-garbage-collector

true

Enables the generic garbage collector. MUST be synced with the corresponding flag of the kube-apiserver. (default true)

--flex-volume-plugin-dir string

/usr/libexec/kubernetes/kubelet-plugins/volume/exec/

Full path of the directory in which the flex volume plugin should search for additional third party volume plugins. (default "/usr/libexec/kubernetes/kubelet-plugins/volume/exec/")

--kubeconfig string

Path to kubeconfig file with authorization and master location information.

--large-cluster-size-threshold int32

50

Number of nodes from which NodeController treats the cluster as large for the eviction logic purposes. --secondary-node-eviction-rate is implicitly overridden to 0 for clusters this size or smaller. (default 50)

--master string

The address of the Kubernetes API server (overrides any value in kubeconfig)

--node-cidr-mask-size int32

24

Mask size for node cidr in cluster. (default 24)

--node-eviction-rate float32

0.1

Number of nodes per second on which pods are deleted in case of node failure when a zone is healthy (see --unhealthy-zone-threshold for definition of healthy/unhealthy). Zone refers to entire cluster in non-multizone clusters. (default 0.1)

--node-monitor-grace-period duration

40s

Amount of time which we allow running Node to be unresponsive before marking it unhealthy. Must be N times more than kubelet's nodeStatusUpdateFrequency, where N means number of retries allowed for kubelet to post node status. (default 40s)

--node-startup-grace-period duration

1m0s ?

Amount of time which we allow starting Node to be unresponsive before marking it unhealthy. (default 1m0s)

--pod-eviction-timeout duration

5m0s

The grace period for deleting pods on failed nodes. (default 5m0s)

--port int32

10252

The port that the controller-manager's http service runs on (default 10252)

--resource-quota-sync-period duration

5m0s

The period for syncing quota usage status in the system (default 5m0s)

--root-ca-file string

If set, this root certificate authority will be included in service account's token secret. This must be a valid PEM-encoded CA bundle.

--secondary-node-eviction-rate float32

0.01

Number of nodes per second on which pods are deleted in case of node failure when a zone is unhealthy (see --unhealthy-zone-threshold for definition of healthy/unhealthy). Zone refers to entire cluster in non-multizone clusters. This value is implicitly overridden to 0 if the cluster size is smaller than --large-cluster-size-threshold. (default 0.01)

--service-account-private-key-file string

Filename containing a PEM-encoded private RSA or ECDSA key used to sign service account tokens.

--service-cluster-ip-range string

CIDR Range for Services in cluster.

--terminated-pod-gc-threshold int32

12500

Number of terminated pods that can exist before the terminated pod garbage collector starts deleting terminated pods. If <= 0, the terminated pod garbage collector is disabled. (default 12500)

--unhealthy-zone-threshold float32

0.55

Fraction of Nodes in a zone which needs to be not Ready (minimum 3) for zone to be treated as unhealthy. (default 0.55)

本文参与 腾讯云自媒体分享计划 ,欢迎热爱写作的你一起参与!
本文分享自作者个人站点/博客:https://my.oschina.net/jxcdwangtao/blog复制
如有侵权,请联系 cloudcommunity@tencent.com 删除。
登录 后参与评论
0 条评论

相关文章

  • kubelet最佳配置

    author: garnett.wang@gmail.com kubernetes version: 1.6.2 Kubelet Configurations ...

    Walton
  • maven配置解析和最佳配置

    十毛
  • Git 配置最佳实践

    我喜欢Git,每天都在使用它。正如我最近所做的事情,花了一些时间通篇阅读文档,并检查我的全局 Git 配置。

    疯狂的技术宅
  • ES 最佳实践配置

    Elasticsearch 是当前流行的企业级搜索引擎,设计用于云计算中,能够达到实时搜索,稳定,可靠,快速,安装使用方便。作为一个开箱即用的产品,在生产环境上...

    用户1217611
  • Kubernetes组件之kube-controller-manager

    Controller Manager作为集群内部的管理控制中心,负责集群内的Node、Pod副本、服务端点(Endpoint)、命名空间(Namespace)、...

    菲宇
  • vscode 前端最佳插件配置

    发布者:全栈程序员栈长,转载请注明出处:https://javaforall.cn/125833.html原文链接:https://javaforall.cn

    全栈程序员站长
  • kube-scheduler最佳配置

    version: kubernetes 1.6.2 ##kube-scheduler Configuration 下面是我梳理的kube-scheduler的完...

    Walton
  • IntelliJ IDEA开发最佳配置

         以前用惯了eclipse,现在改用IDEA,又要去记很多新的组合键了,不用怕,现在如下设置可以改成自己熟悉的组合键。

    程序员云帆哥
  • Nacos配置安全最佳实践

    配置管理作为软件开发中重要的一环,肩负着连接代码和环境的职责,能很好的分离开发人员和维护人员的关注点。

    kirito-moe
  • CVM LINUX SSH配置最佳实践

    随着云上用户的增多,安全事件层出不穷,根据分析大部分入侵是由于安全组对外开放敏感端口,且敏感端口存在弱口令造成。本次将介绍SSH服务配置的最佳实践。

    熊昪
  • yarn一些最佳配置

    合理设置队列名 mapreduce.job.queuename 设置队列名 map读取时进行小文件整合

    用户1217611
  • Oracle流复制配置最佳实践

    (2) 配置本地归档目标路径,log_archive_dest_1参数,不要使用flash recovery area。

    用户1148526
  • Redis Linux系统参数最佳配置

    echo never > /sys/kernel/mm/transparent_hugepage/enabled

    bsbforever
  • 配置 Confluence 6 安全的最佳实践

    让一个系统能够变得更加坚固的最好办法是将系统独立出来。请参考你公司的安全管理策略和相关人员来找到你公司应该采用何种安全策略。这里有很多事情需要我们考虑,例如考虑...

    HoneyMoose
  • frp配置-内网穿透工具最佳实践

    frp是一个可用于内网穿透的高性能的反向代理应用,支持 tcp, udp 协议,为 http 和 https 应用协议提供了额外的能力,且尝试性支持了点对点穿透...

    zhangheng
  • 12个Kubernetes配置的最佳实践

    到目前为止,我们大多数人都听说过人为错误,在导致数据泄露中所扮演的角色。自7月以来,Capital One发生的黑客入侵事件只是一连串安全事件中的最新一起,这些...

    CNCF
  • Ubuntu 20.04最佳配置指南(新手必备)

    2、找到 %sudo ALL=(ALL:ALL) ALL 这⼀⾏修改为 %sudo ALL=(ALL:ALL) NOPASSWD:ALL

    砸漏
  • clion mac 下刷题最佳配置

    c++ 代码风格中,类型与参数名最好分开,也就是说,原来int *a,想改成int* a

    玖柒的小窝

扫码关注腾讯云开发者

领取腾讯云代金券