k8s配置多集群访问

步骤

1. 登陆阿里云控制台，获取对应集群连接信息，public_key
   
2. home目录新建.kube/config, 将public_key粘贴到config，如果有多个可以对齐root key更新，注意要修改name，如sit、uat，不能重复

   apiVersion: v1
   clusters:
   - cluster:
       certificate-authority-data: xxxx
       server: https://xxxxxxx
     name: sit
   - cluster:
       certificate-authority-data: xxxx
       server: https://xxx.xx.xx.x:6443
     name: uat
   contexts:
   - context:
       cluster: sit
       user: sit
     name: sit
   - context:
       cluster: uat
       user: uat
     name: uat
   current-context: uat
   kind: Config
   preferences: {}
   users:
   - name: sit
     user:
       client-certificate-data: xxxxxx
   - name: uat
     user:
       client-certificate-data: xxxxx
       client-key-data: xxxxx
   

3. 切换上下文context
   • 可使用工具kubectx:
     • 安装: git clone https://github.com/ahmetb/kubectx 详情参考: https://github.com/ahmetb/kubectx#kubectl-plugins-macos-and-linux
     • 查看: kubectx
     • 切换: kubectx uat
   • 使用kubect命令
     • 查看 kubectl config get-contexts
     • 切换 kubectl config use-context uat