Kubernetes1.10升级memo

本文记录了kubernetes1.5.2升级到kubernetes1.10一些主要的设定修改。

版本

项目	升级前版本	目标版本
kubernetes	1.5.2	1.10
docker	1.12	17.12
etcd	3.0	3.3

升级方式

二进制替换之后修改systemd相关选项

docker设定

项目	说明
对象文件	docker.service
exec-opt选项删除	–exec-opt native.cgroupdriver=systemd删除

api-server设定

项目	说明
对象文件	kube-apiserver.service
修改admission-control选项	改为enable-admission-plugins

kubelet设定

项目	说明
对象文件	kubelet.service
修改选项	改为–kubeconfig=/etc/kubernetes/kubeconfig
删除cgroup-driver选项	cgroup-driver删除：–cgroup-driver=systemd
添加fail-swap-on选项	–fail-swap-on=false

/etc/kubernetes/kubeconfig内容：
[root@host124 ~]# cat /etc/kubernetes/kubeconfig
apiVersion: v1
kind: Config
users: []
preferences: {}
clusters:
- name: default
cluster:
server: http://192.168.163.121:8080
contexts:
- context:
cluster: default
user: “”
name: default
current-context: default
[root@host124 ~]#

结果确认

版本确认

[root@host121 ~]# kubectl versionClient Version: version.Info{Major:"1", Minor:"10", GitVersion:"v1.10.0", GitCommit:"fc32d2f3698e36b93322a3465f63a14e9f0eaead", GitTreeState:"clean", BuildDate:"2018-03-26T16:55:54Z", GoVersion:"go1.9.3", Compiler:"gc", Platform:"linux/amd64"}Server Version: version.Info{Major:"1", Minor:"10", GitVersion:"v1.10.0", GitCommit:"fc32d2f3698e36b93322a3465f63a14e9f0eaead", GitTreeState:"clean", BuildDate:"2018-03-26T16:44:10Z", GoVersion:"go1.9.3", Compiler:"gc", Platform:"linux/amd64"}[root@host121 ~]#
1
2
3
4

构成确认

[root@host121 ~]# kubectl get node -o wideNAME              STATUS    ROLES     AGE       VERSION   EXTERNAL-IP   OS-IMAGE                KERNEL-VERSION          CONTAINER-RUNTIME192.168.163.122   Ready     <none>    11h       v1.10.0   <none>        CentOS Linux 7 (Core)   3.10.0-693.el7.x86_64   docker://17.12.0-ce192.168.163.123   Ready     <none>    11h       v1.10.0   <none>        CentOS Linux 7 (Core)   3.10.0-693.el7.x86_64   docker://17.12.0-ce192.168.163.124   Ready     <none>    11h       v1.10.0   <none>        CentOS Linux 7 (Core)   3.10.0-693.el7.x86_64   docker://17.12.0-ce[root@host121 ~]#
1
2
3
4
5
6