添加新的master节点
获取token及token证书
root@master0:~# kubeadm token create --print-join-command
kubeadm join 10.238.67.100:6443 --token tzmx95.jqu8kp4olv41cwps --discovery-token-ca-cert-hash sha256:3f1090762f1e92da82843285d17ff24720632174c5b058c5f114d346e4ebdb6f
获取control-plane证书
root@master0:~# kubeadm init phase upload-certs --upload-certs
I0812 16:22:02.105583 14476 version.go:254] remote version is much newer: v1.24.3; falling back to: stable-1.20
[upload-certs] Storing the certificates in Secret "kubeadm-certs" in the "kube-system" Namespace
[upload-certs] Using certificate key:
dab8068ca363d20a4ecdd1844aa253fa18642704de587165a21c5f34a12f9eb9
在新的master节点执行命令
kubeadm join 10.238.67.100:6443 --token tzmx95.jqu8kp4olv41cwps \
--discovery-token-ca-cert-hash sha256:3f1090762f1e92da82843285d17ff24720