k8s 获取master token

 kubectl -n kube-system describe secret $(kubectl -n kube-system get secret | grep admin-user | awk '{print $1}')

查看所有的node节点

[root@test1 ~]# kubectl get nodes
NAME           STATUS    ROLES         AGE       VERSION
test1          Ready     <none>        2h        v1.11.0
test2          Ready     node          21h       v1.11.0

设置集群角色

设置 test1 为 master 角色

kubectl label nodes test1 node-role.kubernetes.io/master=

设置 test2 为 node 角色

kubectl label nodes 192.168.0.92 node-role.kubernetes.io/node=

设置 master 一般情况下不接受负载

kubectl taint nodes test1 node-role.kubernetes.io/master=true:NoSchedule

master运行pod

kubectl taint nodes test1 node-role.kubernetes.io/master-

master不运行pod

kubectl taint nodes test1 node-role.kubernetes.io/master=:NoSchedule