1. [root@prod-work01 ~]# kubectl label nodes 172.25.98.148 node-role.kubernetes.io/work04=work04
    2. node/172.25.98.148 labeled
    3. [root@prod-work01 ~]# kubectl get nodes
    4. [root@prod-work01 ~]# kubectl get nodes
    5. NAME            STATUS                     ROLES    AGE   VERSION
    6. 172.25.98.148   Ready                      work04   63m   v1.19.10-r1.0.0-source-121-gb9675686c54267
    7. 172.25.98.247   Ready,SchedulingDisabled   work01   32d   v1.19.10-r1.0.0-source-28-g913cae0efd63da
    8. 172.25.98.35    Ready                      work02   32d   v1.19.10-r1.0.0-source-28-g913cae0efd63da
    9. 172.25.99.60    Ready                      work03   31d   v1.19.10-r1.0.0-source-28-g913cae0efd63da
    10. [root@prod-work01 ~]#