GKE switcher

gke-switch

#!/usr/bin/env bash

set -eu

sedi () {
  sed --version &>/dev/null && sed -i -- "$@" || sed -i "" "$@"
}

if ! command -v fzf &>/dev/null; then
  echo 'Please install `fzf` https://github.com/junegunn/fzf#using-homebrew-or-linuxbrew'
  return 1
fi

project=$(
  gcloud config configurations list \
    | fzf --header="### Choose google cloud project" --header-lines=1 -1 --layout=reverse \
    | awk '{print $1}'
)
gcloud config configurations activate "${project}"


cluster_info=$(
  gcloud container clusters list \
    | fzf --header="### Choose GKE cluster" --header-lines=1 -1 --layout=reverse \
    | awk '{print $1, $2}'
)
IFS=" " read -r -a cluster <<< "${cluster_info}"
command="gcloud container clusters get-credentials"
[[ ${cluster[1]} =~ -[a-z]$ ]] && location="--zone=" || location+="--region="
location+=${cluster[1]}

gcloud container clusters get-credentials "$location" "${cluster[0]}"

eval $(gcloud container clusters describe "$location" "${cluster[0]}" --format="config[export](privateClusterConfig)")
sedi "s,https://$privateClusterConfig_privateEndpoint$,https://$privateClusterConfig_publicEndpoint,g" ~/.kube/config