### 1. 部署高可用 metrics-server

```sh
wget https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/high-availability-1.21+.yaml
```

### 2. 报错及修复

#### 2.1 x509: cannot validate certificate

- metrics-server deployment 添加启动参数 `- --kubelet-insecure-tls`