升级管理节点:
1、查找最新版本号
yum list –showduplicates kubeadm
2、升级kubeadm
yum install -y kubeadm-1.23.0-0
3、驱逐node上的pod,且不可调度
kubectl drain master.lab.example.com –ignore-daemonsets
4、检查集群是否可以升级,并获取可以升级的版本
kubeadm upgrade plan
如果遇到报错:[ERROR CoreDNSUnsupportedPlugins]: start version ” not supported
[ERROR CoreDNSMigration]: CoreDNS will not be upgraded: start version ” not supported
执行如下命令跳过这两个参数就行:kubeadm upgrade plan –ignore-preflight-errors=CoreDNSUnsupportedPlugins,CoreDNSMigration
5、执行升级
kubeadm upgrade apply v1.23.0 –ignore-preflight-errors=CoreDNSUnsupportedPlugins,CoreDNSMigration
6、升级kubelet和kubectl
yum install -y kubelet-1.23.0-0 kubectl-1.23.0-0
7、重启kubelet
systemctl daemon-reload
systemctl restart kubelet
8、取消不可调度,重新上线
kubectl uncordon master.lab.example.com
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升级node节点:
1、升级kubeadm
yum install -y kubeadm-1.23.0-0
2、驱逐node上的pod,且不可调度
kubectl drain node1.lab.example.com –ignore-daemonsets
3、升级kubelet配置
kubeadm upgrade node
4、升级kubelet和kubectl
yum install -y kubelet-1.23.0-0 kubectl-1.23.0-0
5、重启kubelet
systemctl daemon-reload
systemctl restart kubelet
6、取消不可调度,重新上线
kubectl uncordon node1.lab.example.com
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升级后截图:
原创文章,作者:ItWorker,如若转载,请注明出处:https://blog.ytso.com/tech/pnotes/282428.html