k8s 平滑升级

1.查看当前k8s集群版本

2.查看流量低谷

3.注释掉hdss7-11上的21

[root@hdss7-11 ~]# vim /etc/nginx/nginx.conf

[root@hdss7-11 ~]# vim /etc/nginx/conf.d/od.com.conf 

4.上传软件包到21opt目录

cd /opt/kubernetes-v1.15.4/
rm -rf kubernetes-server-linux-amd64-v1.15.4.tar.gz 
cd server/bin/
mkdir cert conf
rm -rf *.tar
rm -rf *tag
cp /opt/kubernetes-v1.15.2/server/bin/cert/* ./cert/
cd conf/

cp /opt/kubernetes-v1.15.2/server/bin/conf/* .
cp /opt/kubernetes-v1.15.2/server/bin/*.sh /opt/kubernetes-v1.15.4/server/bin/
supervisorctl restart all
kubectl label node hdss7-21.host.com node-role.kubernetes.io/master=
kubectl label node hdss7-21.host.com node-role.kubernetes.io/node=

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