eks-cluster-auth.sh

#! /usr/bin/env bash

# works with aws-vault v4.6.4

credServerRunning=$(lsof -i tcp:9099 | wc -l | tr -d ' ')

if [[ "${credServerRunning}" != "0" ]]; then
    echo "AWS Credential Server already running"
    exit 1
fi

function eksInfo() {
    printf "Connected to EKS cluster $1 using role $2\n\n"

    curl --silent http://localhost:9099/ | jq -C '.'
}

export -f eksInfo

if [ -z "$1" ]; then
    read -p "Role: " role
else
    role=$1
fi

if [ -z "$2" ]; then
    read -p "Cluster name: " name
else
    name=$2
fi

if [ -z "$3" ]; then
    read -p "Region: " region
else
    region=$3
fi

aws-vault exec ${role} -- aws eks update-kubeconfig --name ${name} --region ${region}
aws-vault exec -s ${role} -- tail -f /dev/null &

pid=$(echo $!)

sleep 2

watch -e -t -n 15 --color -x bash -c "eksInfo ${name} ${role}"

kill -9 ${pid}