k8s 集群中，修改高可用选项 -ha-enabled-Go服务器开发

可以通过修改 Kubernetes API server 的参数来开启或关闭高可用选项。具体步骤如下：

编辑 kube-apiserver 配置文件，找到 --ha-enabled 参数

apiVersion: v1
kind: Pod
metadata:
  name: kube-apiserver
spec:
  containers:
  - name: kube-apiserver
    image: k8s.gcr.io/kube-apiserver:v1.21.0
    command:
    - kube-apiserver
    - --advertise-address=192.168.10.100
    - --bind-address=192.168.10.100
    - --insecure-port=0
    - --secure-port=6443
    - --authorization-mode=Node,RBAC
    - --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname
    - --enable-bootstrap-token-auth=true
    - --token-auth-file=/etc/kubernetes/pki/token.csv
    - --service-cluster-ip-range=10.96.0.0/12
    - --service-node-port-range=30000-32767
    - --tls-cert-file=/etc/kubernetes/pki/apiserver.crt
    - --tls-private-key-file=/etc/kubernetes/pki/apiserver.key
    - --client-ca-file=/etc/kubernetes/pki/ca.crt
    - --etcd-cafile=/etc/kubernetes/pki/etcd/ca.crt
    - --etcd-certfile=/etc/kubernetes/pki/etcd/server.crt
    - --etcd-keyfile=/etc/kubernetes/pki/etcd/server.key
    - --etcd-servers=https://192.168.10.101:2379,https://192.168.10.102:2379,https://192.168.10.103:2379
    - --enable-admission-plugins=NodeRestriction,PodSecurityPolicy,DefaultStorageClass,LimitRanger,MutatingAdmissionWebhook,ValidatingAdmissionWebhook
    - --admission-control-config-file=/etc/kubernetes/admission/config.yaml
    - --event-ttl=1h
    - --runtime-config=api/all=true
    - --logtostderr=true
    - --v=2
    - --ha-enabled=true # 修改此处