通过 curl 命令访问 K8S API

参考链接：https://blog.csdn.net/anqixiang/article/details/114435934

curl https://127.0.0.1:6443/api/v1/nodes 
--cacert /etc/kubernetes/pki/ca.crt 
--cert /etc/kubernetes/pki/apiserver-kubelet-client.crt 
--key /etc/kubernetes/pki/apiserver-kubelet-client.key