How to list all namespaces in a cluster?

I am trying to figure out how to list all namespaces in a cluster:

something like:

kubectl describe cluster --namepaces -o json

anyone know how to list all the namespaces in a K8S/EKS cluster?

2 Answers

Additionally, (to the other answer), this is a short way:

$ kubectl get ns
$ kubectl describe ns

Also, you can use kubens to list and switch namespaces (on your local KUBECONFIG)

 $ kubens

Namespaces are an object like any other, so kubectl get namespaces will list them. kubectl describe namespaces will print full details.