kubectl context and namespace helpers

kubectl-ctx

#!/bin/bash

if [ "$#" -lt 1 ]; then
    kubectl config current-context
else
    kubectl config use-context $1
fi

kubectl-ns

#!/bin/bash

if [ "$#" -lt 1 ]; then
    context=$(kubectl config current-context)
    kubectl config get-contexts --no-headers $context | awk '{print $5}'
else
    echo "Setting namespace to $1"
    kubectl config set-context --current --namespace $1
fi

These enable you to type kubectl ctx foo to change your context to foo, and kubectl ns bar to set the namespace of the current context to bar. Without any parameters they display the current context and namespace, respectively.