摘要在Kubernetes中，节点（Node）标签（Labels）是用来对集群中的节点进行分类和组织的一种机制。节点标签可以用于定义节点的特性、功能或角色。使用节点标签可以使集群管理...

1、查看集群节点信息

[root@k8s-master1 ~]# kubectl get nodes

2、定义标签

定义k8s-node1标签为worker1,定义k8s-node2标签为worker2,定义k8s-node3标签为worker3

[root@k8s-master1 ~]# kubectl label node k8s-node1 kubernetes.io/role=worker1

node/k8s-node1 labeled

[root@k8s-master1 ~]# kubectl label node k8s-node2 kubernetes.io/role=worker2

node/k8s-node2 labeled

[root@k8s-master1 ~]# kubectl label node k8s-node3 kubernetes.io/role=worker3

node/k8s-node3 labeled

定义k8s-master1、k8s-master2、k8s-master3标签为master

[root@k8s-master1 ~]# kubectl label node k8s-master1 kubernetes.io/role=master

node/k8s-master1 labeled

[root@k8s-master1 ~]# kubectl label node k8s-master2 kubernetes.io/role=master

node/k8s-master2 labeled

[root@k8s-master1 ~]# kubectl label node k8s-master3 kubernetes.io/role=master

node/k8s-master3 labeled

[root@k8s-master1 ~]# kubectl get nodes

3、更换标签

[root@k8s-master1 ~]# kubectl label nodes k8s-node1 kubernetes.io/role=worker --overwrite

node/k8s-node1 labeled

[root@k8s-master1 ~]# kubectl label nodes k8s-node2 kubernetes.io/role=worker --overwrite

node/k8s-node2 labeled

[root@k8s-master1 ~]# kubectl label nodes k8s-node3 kubernetes.io/role=worker --overwrite

node/k8s-node3 labeled

[root@k8s-master1 ~]# kubectl get nodes

4、移除标签

[root@k8s-master1 ~]# kubectl label nodes k8s-node1 kubernetes.io/role-

node/k8s-node1 unlabeled

[root@k8s-master1 ~]# kubectl label nodes k8s-node2 kubernetes.io/role-

node/k8s-node2 unlabeled

[root@k8s-master1 ~]# kubectl label nodes k8s-node3 kubernetes.io/role-

node/k8s-node3 unlabeled

[root@k8s-master1 ~]# kubectl get nodes

继续阅读

10 月
18