Change $KUBECONFIG

kube-use-context.sh

#!/usr/bin/env bash

# Usage: source ./kube-use-context.sh <CONTEXT_NAME>


BASEDIR="$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")"

if [ "$#" -ne 1 ]; then
    echo "Usage: ${BASH_SOURCE[0]} <CONTEXT_NAME>"
    return
fi

CONTEXT_NAME=$1

KUBECONFIG=$BASEDIR/config-$CONTEXT_NAME
if [ ! -f "$KUBECONFIG" ]; then
    echo "$CONTEXT_NAME does not exists."
    return
fi

if [ -n "$_KUBE_CONTEXT_NAME" ] && [[ $PS1 == "($_KUBE_CONTEXT_NAME) "* ]]; then
    PS1=${PS1/\($_KUBE_CONTEXT_NAME\) /}
fi

export PS1="($CONTEXT_NAME) $PS1"
export KUBECONFIG
export _KUBE_CONTEXT_NAME=$CONTEXT_NAME