Why do we need to add group extensions in role and rolebinding last question

Kubernetes
#1

Jia:
why do we need to add group extensions in role and rolebinding last question

Screen Shot 2021-06-03 at 10.04.58 AM.png
Screen Shot 2021-06-03 at 10.04.58 AM.png3208×1088 441 KB

#2

Mohamed Ayman:
The old version of K8s uses the extensions group and the newer version use apps. So, when you add both, it will be work on any version of K8s. you can use API group without it, it will be fine.