浏览次数:
10,000,249
查看所有的node节点
[root@k8s-master1 ~]# kubectl get no
NAME STATUS ROLES AGE VERSION
k8s-master1 Ready,SchedulingDisabled <none> 29d v1.20.14
k8s-master2 Ready,SchedulingDisabled <none> 29d v1.20.14
k8s-master3 Ready,SchedulingDisabled <none> 29d v1.20.14
k8s-node1 Ready <none> 29d v1.20.14
k8s-node2 Ready <none> 29d v1.20.14
k8s-node3 Ready <none> 29d v1.20.14
k8s-node4 Ready <none> 29d v1.20.14
k8s-node5 Ready <none> 29d v1.20.14
k8s-node6 Ready <none> 29d v1.20.14
k8s-node7 Ready <none> 29d v1.20.14
k8s-node8 Ready <none> 29d v1.20.14
k8s-node9 Ready <none> 29d v1.20.14
设置集群角色
# 设置k8s-master 为 master 角色
[root@k8s-master1 ~]# kubectl label nodes k8s-master1 node-role.kubernetes.io/master=
[root@k8s-master1 ~]# kubectl label nodes k8s-master2 node-role.kubernetes.io/master=
[root@k8s-master1 ~]# kubectl label nodes k8s-master3 node-role.kubernetes.io/master=
# 设置 node 为 node 角色
[root@k8s-master1 ~]# kubectl label nodes k8s-node2 node-role.kubernetes.io/node=
node/k8s-node2 labeled
[root@k8s-master1 ~]# kubectl label nodes k8s-node3 node-role.kubernetes.io/node=
node/k8s-node3 labeled
[root@k8s-master1 ~]# kubectl label nodes k8s-node4 node-role.kubernetes.io/node=
node/k8s-node4 labeled
[root@k8s-master1 ~]# kubectl label nodes k8s-node5 node-role.kubernetes.io/node=
node/k8s-node5 labeled
[root@k8s-master1 ~]# kubectl label nodes k8s-node6 node-role.kubernetes.io/node=
node/k8s-node6 labeled
[root@k8s-master1 ~]# kubectl label nodes k8s-node7 node-role.kubernetes.io/node=
node/k8s-node7 labeled
[root@k8s-master1 ~]# kubectl label nodes k8s-node8 node-role.kubernetes.io/node=
node/k8s-node8 labeled
[root@k8s-master1 ~]# kubectl label nodes k8s-node9 node-role.kubernetes.io/node=
node/k8s-node9 labeled
# 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
