How to switch namespace in kubernetes

Question

Say, I have two namespaces k8s-app1 and k8s-app2

I can list all pods from specific namespace using the below command

kubectl get pods -n 

        

Answer 1

There are a few options:

• Switch namespace only using the kubectl commands::

kubectl config set-context --current --namespace=

• Or, Create a new context with namespace defined:

kubectl config set-context gce-dev --user=cluster-admin --namespace=dev
kubectl config use-context gce-dev

• Or, Use addons, like kubectx & kubens, the below command will switch the context to kube-system:

$ kubens kube-system 

• Or, Another easy alternative that I like without installing third party tools, is using bash alias(linux).

$ alias kubens='kubectl config set-context --current --namespace '
$ alias kubectx='kubectl config use-context '

// Usage
$ kubens kube-system    //Switch to a different namespace
$ kubectx docker        //Switch to separate context