我的 kubernetes PKI 已过期（准确地说是 API 服务器），我找不到更新它的方法。我得到的错误是
May 27 08:43:51 node1 kubelet[8751]: I0527 08:43:51.922595 8751 server.go:417] Version: v1.14.2
May 27 08:43:51 node1 kubelet[8751]: I0527 08:43:51.922784 8751 plugins.go:103] No cloud provider specified.
May 27 08:43:51 node1 kubelet[8751]: I0527 08:43:51.922800 8751 server.go:754] Client rotation is on, will bootstrap in background
May 27 08:43:51 node1 kubelet[8751]: E0527 08:43:51.925859 8751 bootstrap.go:264] Part of the existing bootstrap client certificate is expired: 2019-05-24 13:24:42 +0000 UTC
May 27 08:43:51 node1 kubelet[8751]: F0527 08:43:51.925894 8751 server.go:265] failed to …