AWS ssh bash script

gssh

#!/bin/bash

if [ -z $1 ]; then
	echo "Usage: gssh <hostname>"
	exit 1
fi

instance=$(aws ec2 describe-instances --filters "Name=tag:Name,Values=$1" | jq .Reservations[0].Instances[0])

if [ $instance == "null" ]; then
	echo "Unknown host" $1
	exit 1
fi

echo "Connecting to" `echo $instance | jq '.Tags[] | select(.Key == "Name") | .Value'` "..."

keyname=$(echo $instance | jq -r .KeyName)
private_ip=$(echo $instance | jq -r .PrivateIpAddress)
public_ip=$(echo $instance | jq -r .PublicIpAddress)

ssh -i ~/.ssh/${keyname}.pem ubuntu@${private_ip}