#!/bin/bash # Specify the desired volume size in GiB as a command-line argument. If not specified, default to 20 GiB. SIZE=${1:-20} # Get the ID of the environment host Amazon EC2 instance. INSTANCEID=$(curl http://169.254.169.254/latest/meta-data//instance-id) # Get the ID of the Amazon EBS volume associated with the instance. VOLUMEID=$(aws ec2 describe-instances \ --instance-id $INSTANCEID \ ..