升级二进制kubernetes集群（大版本升级）

升级二进制kubernetes集群（大版本升级）

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>   110d   v1.34.3
k8s-master02   Ready    <none>   110d   v1.34.3
k8s-master03   Ready    <none>   110d   v1.34.3
k8s-node01     Ready    <none>   110d   v1.34.3
k8s-node02     Ready    <none>   110d   v1.34.3
[root@k8s-master01 ~]# 

主机域名以及IP地址

[root@k8s-master01 ~]# cat /etc/hosts | grep k8s
192.168.1.31 k8s-master01
192.168.1.32 k8s-master02
192.168.1.33 k8s-master03
192.168.1.34 k8s-node01
192.168.1.35 k8s-node02
fc00::31 k8s-master01
fc00::32 k8s-master02
fc00::33 k8s-master03
fc00::34 k8s-node01
fc00::35 k8s-node02
[root@k8s-master01 ~]# 

下载二进制安装包

[root@k8s-master01 ~]# wget https://dl.k8s.io/v1.34.3/kubernetes-server-linux-amd64.tar.gz
[root@k8s-master01 ~]# wget https://dl.k8s.io/v1.35.0/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 root@192.168.1.31:/usr/local/bin/
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# scp kubernetes/server/bin/kubectl root@192.168.1.32:/usr/local/bin/
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# scp kubernetes/server/bin/kubectl root@192.168.1.33:/usr/local/bin/
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# kubectl version
Client Version: v1.35.0
Kustomize Version: v5.7.1
Server Version: v1.34.3
[root@k8s-master01 ~]# 

升级三台主节点api组件

[root@k8s-master01 ~]# ssh root@192.168.1.31 "systemctl stop kube-apiserver"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# scp kubernetes/server/bin/kube-apiserver root@192.168.1.31:/usr/local/bin/
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# ssh root@192.168.1.31 "systemctl start kube-apiserver"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# ssh root@192.168.1.31 "systemctl status kube-apiserver"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# kube-apiserver --version
Kubernetes v1.35.0
[root@k8s-master01 ~]# 

升级三台主节点控制器组件

[root@k8s-master01 ~]# ssh root@192.168.1.31 "systemctl stop kube-controller-manager"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# scp kubernetes/server/bin/kube-controller-manager root@192.168.1.31:/usr/local/bin/
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# ssh root@192.168.1.31 "systemctl start kube-controller-manager"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# ssh root@192.168.1.31 "systemctl status kube-controller-manager"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# kube-controller-manager --version
Kubernetes v1.35.0
[root@k8s-master01 ~]# 

升级三台主节点选择器组件

[root@k8s-master01 ~]# ssh root@192.168.1.31 "systemctl stop kube-scheduler"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# scp kubernetes/server/bin/kube-scheduler root@192.168.1.31:/usr/local/bin/
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# ssh root@192.168.1.31 "systemctl start kube-scheduler"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# ssh root@192.168.1.31 "systemctl status kube-scheduler"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# kube-scheduler --version
Kubernetes v1.35.0
[root@k8s-master01 ~]# 

升级Worker

每一台机器都要升级kubelet

[root@k8s-master01 ~]# ssh root@192.168.1.31 "systemctl stop kubelet"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# scp kubernetes/server/bin/kubelet root@192.168.1.31:/usr/local/bin/
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# ssh root@192.168.1.31 "systemctl start kubelet"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# ssh root@192.168.1.31 "systemctl status kubelet"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# ssh root@192.168.1.31 "kubelet --version"
Kubernetes v1.35.0
[root@k8s-master01 ~]#

每一台机器都要升级kube-proxy

[root@k8s-master01 ~]# ssh root@192.168.1.31 "systemctl stop kube-proxy"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# scp kubernetes/server/bin/kube-proxy root@192.168.1.31:/usr/local/bin/
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# ssh root@192.168.1.31 "systemctl start kube-proxy"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# ssh root@192.168.1.31 "systemctl status kube-proxy"
[root@k8s-master01 ~]#
[root@k8s-master01 ~]# kube-proxy --version
Kubernetes v1.35.0
[root@k8s-master01 ~]#

验证

[root@k8s-master01 ~]# systemctl start kube-proxy
[root@k8s-master01 ~]# kubectl  get node
NAME           STATUS   ROLES    AGE    VERSION
k8s-master01   Ready    <none>   111d   v1.35.0
k8s-master02   Ready    <none>   111d   v1.35.0
k8s-master03   Ready    <none>   111d   v1.35.0
k8s-node01     Ready    <none>   111d   v1.35.0
k8s-node02     Ready    <none>   111d   v1.35.0
[root@k8s-master01 ~]# kubectl  version
Client Version: v1.35.0
Kustomize Version: v5.7.1
Server Version: v1.35.0
[root@k8s-master01 ~]# 

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