Namespaces

kubectl describe ns default

$ cat namespace.yaml
apiVersion: v1
kind: Namespace
metadata:
  name: main
  labels:
    name: main

$ kubectl get ns
NAME          STATUS    AGE
default       Active    22h
kube-public   Active    22h
kube-system   Active    22h

$ kubectl apply -f namespace.yaml

$ kubectl get ns
NAME          STATUS    AGE
default       Active    22h
kube-public   Active    22h
kube-system   Active    22h
main          Active    3h

$ kubectl get namespaces --show-labels
$ kubectl describe ns main
$ kubectl describe ns default

$ kubectl config set-context main --namespace=main --cluster=NAME --user=NAME
Context "main" modified.

$ kubectl config get-contexts
CURRENT   NAME                          CLUSTER                       AUTHINFO                      NAMESPACE
          default                       cluster
*         main                          cluster                       cluster                       main

$ kubectl config use-context main

https://vitalflux.com/kubernetes-create-delete-namespaces-namespaces/