Upgrade_Kubernetes

升级二进制kubernetes集群

背景介绍

最近由于时间不足，暂时无法对小版本更新第一时间出新的文档。若需要升级集群版本，可以参考此文档进行操作，每个节点一个一个的更新。大版本更新请各位持续关注我的Github项目仓库。后续更新会在仓库持续更新。感谢各位小伙伴一直以来的支持。

此文档基于我的二进制安装仓库 https://github.com/cby-chen/Kubernetes

基础操作

查看当前版本信息

[root@k8s-master01 ~]# kubectl  get node
NAME           STATUS   ROLES    AGE   VERSION
k8s-master01   Ready    <none>   57d   v1.23.6
k8s-master02   Ready    <none>   57d   v1.23.6
k8s-master03   Ready    <none>   57d   v1.23.6
k8s-node01     Ready    <none>   57d   v1.23.6
k8s-node02     Ready    <none>   57d   v1.23.6
[root@k8s-master01 ~]#

主机域名以及IP地址

[root@k8s-master01 ~]# cat /etc/hosts | grep k8s
192.168.1.230 k8s-master01
192.168.1.231 k8s-master02
192.168.1.232 k8s-master03
192.168.1.233 k8s-node01
192.168.1.234 k8s-node02
[root@k8s-master01 ~]#

下载二进制安装包

[root@k8s-master01 ~]# wget https://dl.k8s.io/v1.23.9/kubernetes-server-linux-amd64.tar.gz
[root@k8s-master01 ~]#

解压二进制安装包

[root@k8s-master01 ~]# tar xf kubernetes-server-linux-amd64.tar.gz
[root@k8s-master01 ~]# 

升级Maser

升级三台主节点上的客户端

[root@k8s-master01 ~]# scp kubernetes/server/bin/kubectl [email protected]:/usr/local/bin/
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# scp kubernetes/server/bin/kubectl [email protected]:/usr/local/bin/
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# scp kubernetes/server/bin/kubectl [email protected]:/usr/local/bin/
[root@k8s-master01 ~]#

升级三台主节点api组件

[root@k8s-master01 ~]# ssh [email protected] "systemctl stop kube-apiserver"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# scp kubernetes/server/bin/kube-apiserver [email protected]:/usr/local/bin/
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# ssh [email protected] "systemctl start kube-apiserver"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# kube-apiserver --version
Kubernetes v1.23.9
[root@k8s-master01 ~]#

升级三台主节点控制器组件

[root@k8s-master01 ~]# ssh [email protected] "systemctl stop kube-controller-manager"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# scp kubernetes/server/bin/kube-controller-manager [email protected]:/usr/local/bin/
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# ssh [email protected] "systemctl start kube-controller-manager"
[root@k8s-master01 ~]#

升级三台主节点选择器组件

[root@k8s-master01 ~]# ssh [email protected] "systemctl stop kube-scheduler"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# scp kubernetes/server/bin/kube-scheduler [email protected]:/usr/local/bin/
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# ssh [email protected] "systemctl start kube-scheduler"
[root@k8s-master01 ~]#

升级Worker

每一台机器都要升级kubelet

[root@k8s-master01 ~]# ssh [email protected] "systemctl stop kubelet"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# scp kubernetes/server/bin/kubelet [email protected]:/usr/local/bin/
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# ssh [email protected] "systemctl start kubelet"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# ssh [email protected] "kubelet --version"
Kubernetes v1.23.9
[root@k8s-master01 ~]#

每一台机器都要升级kube-proxy

[root@k8s-master01 ~]# ssh [email protected] "systemctl stop kube-proxy"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# scp kubernetes/server/bin/kube-proxy [email protected]:/usr/local/bin/
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# ssh [email protected] "systemctl start kube-proxy"
[root@k8s-master01 ~]#

验证

[root@k8s-master01 ~]# kubectl  get node
NAME           STATUS   ROLES    AGE   VERSION
k8s-master01   Ready    <none>   57d   v1.23.9
k8s-master02   Ready    <none>   57d   v1.23.9
k8s-master03   Ready    <none>   57d   v1.23.9
k8s-node01     Ready    <none>   57d   v1.23.9
k8s-node02     Ready    <none>   57d   v1.23.9
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# kubectl  version
Client Version: version.Info{Major:"1", Minor:"23", GitVersion:"v1.23.9", GitCommit:"c1de2d70269039fe55efb98e737d9a29f9155246", GitTreeState:"clean", BuildDate:"2022-07-13T14:26:51Z", GoVersion:"go1.17.11", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"23", GitVersion:"v1.23.9", GitCommit:"c1de2d70269039fe55efb98e737d9a29f9155246", GitTreeState:"clean", BuildDate:"2022-07-13T14:19:57Z", GoVersion:"go1.17.11", Compiler:"gc", Platform:"linux/amd64"}
[root@k8s-master01 ~]#

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