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3 years ago
# kubeadm添加一个新的节点
首先获取证书的hash值, 这个值用于 `--discovery-token-ca-cert-hash`
```bash
HASH=$(openssl x509 -pubkey -in /etc/kubernetes/pki/ca.crt | openssl rsa -pubin -outform der 2>/dev/null | openssl dgst -sha256 -hex | sed 's/^.* //')
```
获取token, 这个值用于 `--token`
```bash
kubeadm token list
```
如果没有任何token列出,创建一个
```bash
TOKEN=$(kubeadm token create)
```
添加节点到集群
```bash
kubeadm join k8smaster:6443 --token ${TOKEN} --discovery-token-ca-cert-hash sha256:${HASH}
```