k8s配置master运行pod

出于安全考虑，默认配置下Kubernetes不会将Pod调度到Master节点。

#查看k8s-master表示不运行pod

[root@k8s-master ~]# kubectl describe node k8s-master |grep Taints

Taints: node-role.kubernetes.io/master:NoSchedule

#查看k8s-master表示运行pod

[root@k8s-master ~]# kubectl describe node k8s-master |grep Taints

Taints: 

#让 master节点参与POD负载的命令为

kubectl taint nodes k8s-master node-role.kubernetes.io/master-

#让 master节点恢复不参与POD负载的命令为 

kubectl taint nodes k8s-master node-role.kubernetes.io/master=:NoSchedule