Centos7.6,2C4G
K8S1.20
Etcd-v3.4.14
Docker19.3
Calico,CoreDNS
k8s-master..25.k8s-master..25.k8s-node..25.k8s-node..25.k8s-lbMaster..25.Centos7.6,1C1G
k8s-lbBackup..25.)升级内核##安装基础工具yuminstallperlopensshgitunzipzipwgetlrzszepel-releaseyum-utilsncdevice-mapper-persistent-datalvm2telnettelnet-serverxinetdvimnet-tools.x86_64-yyum-yupdate#rpm源rpm--import