Kubernetes Namespaces Guide

Kubernetes namespaces allow you to organize and isolate resources within your cluster.

🧾 Listing Namespaces

To list all namespaces:

kubectl get namespaces

or the shorthand:

kubectl get ns

Create a new namespace:

kubectl create namespace <namespace-name>

or:

kubectl create ns <namespace-name>

Delete a namespace:

kubectl delete ns <namespace-name>

Namespaces are isolated, but they can still communicate with each other by default.
It is not recommended to create namespaces that start with kube-, as those are typically reserved for system components.

You can define a namespace using a YAML manifest:

apiVersion: v1
kind: Namespace
metadata:
  name: namespace-test

Apply it using:

kubectl apply -f namespace.yaml