Working In A Namespace

To create or look at objects in a namespace other than default, add -n to the command:

kubectl run api --image=redis -n dev
kubectl get pods -n dev

Without -n, kubectl get pods still looks in default, where the api Pod does not exist.

To see everything at once, ask for all namespaces with -A:

kubectl get pods -A

The table gains a NAMESPACE column, and you will spot the cluster's own Pods in kube-system.

If you are going to work in one namespace for a while, make it the default for your context:

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

From then on every command without -n uses dev.