本地管理多个k8s集群

从 k8s 的主节点下载 config 文件，这个 config 文件就可以管理集群。

config111

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apiVersion: v1
clusters:
- cluster:
    certificate-authority-data: xxx
    server: https://10.237.11.4:6443
  name: k8s-11
contexts:
- context:
    cluster: k8s-11
    user: k8s-11-admin
  name: k8s-11-admin@k8s-11
current-context: k8s-11-admin@k8s-11
kind: Config
preferences: {}
users:
- name: k8s-11-admin
  user:
    client-certificate-data: xxxx
    client-key-data: xxxx

config222

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apiVersion: v1
clusters:
- cluster:
    certificate-authority-data: xxx
    server: https://10.237.26.4:6443
  name: k8s-dev
contexts:
- context:
    cluster: k8s-dev
    user: k8s-dev-admin
  name: k8s-dev-admin@k8s-dev
current-context: k8s-dev-admin@k8s-dev
kind: Config
preferences: {}
users:
- name: k8s-dev-admin
  user:
    client-certificate-data: xxxx
    client-key-data: xxxx

接下来执行合并命令，其实最好写到 zshrc 中

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KUBECONFIG=~/.kube/config111:~/.kube/config222  kubectl config view --merge --flatten >> ~/.kube/config
export KUBECONFIG=~/.kube/config

注意问题，用户名一定要不一样，否则会报错。