How to add a label in Kubernetes Node?

How to add a label in Kubernetes Node?

1. Check the nodes.

[root@kubemaster ~]# kubectl get nodes
NAME         STATUS   ROLES    AGE   VERSION
kubemaster   Ready    master   94d   v1.13.1
kubenode1    Ready    <none>   94d   v1.13.1
kubenode2    Ready    <none>   94d   v1.13.1
[root@kubemaster ~]#

2. Choose the node and Labele it.

root@master01> kubectl label nodes kubemaster kubenode1 kubenode2 capability=monitoring
node/kubemaster labeled
node/kubenode1 labeled
node/kubenode2 labeled
root@master01>

3. Check the labels. You should get an output similar to this.

root@master01> kubectl get nodes --show-labels
NAME         STATUS   ROLES    AGE   VERSION   LABELS
kubemaster   Ready    master   94d   v1.13.1   beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,capability=monitoring,kubernetes.io/hostname=kubemaster,node-role.kubernetes.io/master=
kubenode1    Ready    <none>   94d   v1.13.1   beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,capability=monitoring,kubernetes.io/hostname=kubenode1
kubenode2    Ready    <none>   94d   v1.13.1   beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,capability=monitoring,kubernetes.io/hostname=kubenode2
root@master01>

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