Docs/CloudNative/Kubernetes/Base/kubeadm证书相关.md

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## 不能检查外部的ca签名的证书
```
kubeadm certs check-expiration
```
## 自动更新证书
kubeadm会在控制面板升级时自动更新所有证书
## 手动更新你的证书
```
kubeadm certs renew
```
此命令用 CA (或者 front-proxy-CA )证书和存储在 /etc/kubernetes/pki 中的密钥执行更新。
kubeadm certs renew 提供下列选项
--csr-only 可用于经过一个外部 CA 生成的证书签名请求来更新证书(无需实际替换更新证书)
可以更新单个证书而不是全部证书