库伯奈特斯库贝-控制器-经理。我怎样才能应用旗子？

Question

在文献资料中，我发现应该在kube-controller-manager上应用以下标志来解决我的问题：

--horizontal-pod-autoscaler-use-rest-clients=1m0s

但是如何在kube-controller-manager上应用这个标志呢？我不明白，因为它不是基于YAML的设置，而且我在本地机器上拥有的唯一东西是kubectl & oc CLI工具。

Answer 1

kube-controller-manager在您的K8s控制平面上运行。因此，您必须在您的控制平面运行的服务器上添加该标志。通常，这是一个不均衡的服务器数量(其中一个是主服务器)3或5，因为它是推荐的仲裁。(使用kubeadm的示例)。

因此，通常情况下，kube-controller-manager向您的主人吐露自己生活在/etc/kubernetes/manifests之下。文件名通常为kube-controller-manager.yaml，可以将内容更改为如下所示：

apiVersion: v1
kind: Pod
metadata:
  creationTimestamp: null
  labels:
    component: kube-controller-manager
    tier: control-plane
  name: kube-controller-manager
  namespace: kube-system
spec:
  containers:
  - command:
    - kube-controller-manager
    - --authentication-kubeconfig=/etc/kubernetes/controller-manager.conf
    - --authorization-kubeconfig=/etc/kubernetes/controller-manager.conf
    - --bind-address=127.0.0.1
    - --client-ca-file=/var/lib/minikube/certs/ca.crt
    - --cluster-signing-cert-file=/var/lib/minikube/certs/ca.crt
    - --cluster-signing-key-file=/var/lib/minikube/certs/ca.key
    - --controllers=*,bootstrapsigner,tokencleaner
    - --kubeconfig=/etc/kubernetes/controller-manager.conf
    - --leader-elect=true
    - --requestheader-client-ca-file=/var/lib/minikube/certs/front-proxy-ca.crt
    - --root-ca-file=/var/lib/minikube/certs/ca.crt
    - --service-account-private-key-file=/var/lib/minikube/certs/sa.key
    - --use-service-account-credentials=true
    - --horizontal-pod-autoscaler-use-rest-clients=1m0s  <== add this line
    image: k8s.gcr.io/kube-controller-manager:v1.16.2
    imagePullPolicy: IfNotPresent
    livenessProbe:
      failureThreshold: 8
      httpGet:
        host: 127.0.0.1
        path: /healthz
        port: 10252
        scheme: HTTP
      initialDelaySeconds: 15
      timeoutSeconds: 15
    name: kube-controller-manager
    resources:
      requests:
        cpu: 200m
    volumeMounts:
    - mountPath: /etc/ssl/certs
      name: ca-certs
      readOnly: true
    - mountPath: /var/lib/minikube/certs
      name: k8s-certs
      readOnly: true
    - mountPath: /etc/kubernetes/controller-manager.conf
      name: kubeconfig
      readOnly: true
    - mountPath: /usr/share/ca-certificates
      name: usr-share-ca-certificates
      readOnly: true
  hostNetwork: true
  priorityClassName: system-cluster-critical
  volumes:
  - hostPath:
      path: /etc/ssl/certs
      type: DirectoryOrCreate
    name: ca-certs
  - hostPath:
      path: /var/lib/minikube/certs
      type: DirectoryOrCreate
    name: k8s-certs
  - hostPath:
      path: /etc/kubernetes/controller-manager.conf
      type: FileOrCreate
    name: kubeconfig
  - hostPath:
      path: /usr/share/ca-certificates
      type: DirectoryOrCreate
    name: usr-share-ca-certificates
status: {}

然后你需要重新启动你的库贝控制器经理。

这可能会根据您在主程序中运行的内容而有所不同。如果您可以执行类似于sudo systemctl restart docker的操作，或者您需要重新启动容器，如果您正在使用它而不是码头systemctl restart containerd

或者，如果您只想启动kube-controller-manager，则可以执行docker restart kube-controller-mamnager或crictl stop kube-controller-manager; crictl start kube-controller-manager