kube.sh

#!/bin/bash

# This script takes 1 mandatory parameter: the short gist url and 1 optionnal: the destination
# directory for the donwloaded kubeconfig
# It downloads the kubeconfig file from gist and sets KUBECONFIG variable pointing to it locally


# url is in the form of: https://gist.github.com/287f2ccee282c01e8ffb532763c20a86
# full_url will be : https://gist.githubusercontent.com/<user>/287f2ccee282c01e8ffb532763c20a86/raw/kubeconfig

url=$1
dest_dir=${2:-$HOME}
dest_file=$( realpath $dest_dir/kubeconfig )
github_content_url=https://gist.githubusercontent.com
kubeconfig_raw_path=raw/kubeconfig
redirect_url=$( curl -o /dev/null -s -w "%{redirect_url}" $url )
user=$(echo $redirect_url | cut -f 4 -d/ )
token=$(echo $redirect_url | cut -f 5 -d/ )
full_url="$github_content_url/$user/$token/$kubeconfig_raw_path"
curl -ks $full_url -o $dest_file

echo "Setting KUBECONFIG to $dest_file after getting it from $full_url"
export KUBECONFIG=$dest_file