只适用于 rancher v2.4.x版本，且单节点安装
- exec 到rancher server
kubectl --insecure-skip-tls-verify -n kube-system delete secrets k3s-serving kubectl --insecure-skip-tls-verify delete secret serving-cert -n cattle-system rm -f /var/lib/rancher/k3s/server/tls/dynamic-cert.json -
重启rancher-server
- 执行以下命令刷新参数
curl --insecure -sfL https://server-url/v3
