操作系统信息以及k8s集群版本信息请看下面

[root@k8s-master][/usr/local]
$cat /etc/redhat-release 
CentOS Linux release 7.7.1908 (Core)

[root@k8s-master][/usr/local]
$kubectl version
Client Version: version.Info{Major:"1", Minor:"23", GitVersion:"v1.23.0", GitCommit:"ab69524f795c42094a6630298ff53f3c3ebab7f4", GitTreeState:"clean", BuildDate:"2021-12-07T18:16:20Z", GoVersion:"go1.17.3", Compiler:"gc", Platform:"linux/amd64"}