title: How can I just increase the size of my root disk on AWS EC2 for use with Elastic Beanstalk?
body: <p>On deployment I copy datafiles from S3 to my root drive to be used by Tomcat application. This is working perfectly, the trouble is the root disk is only 8GB and my datafiles will soon be larger than that. I want to increase the size of the root disk a little (15GB should be fine for another year) without moving to a larger more expensive EC2 instance, I'm currently using m3.medium.</p>
  
  <p>As being used by EB I need the correct EC2 configuration to start as required, I cannot modify an already running instance by manually adding another disk. I'm using EB load balanced so instances may come and go to meet demand.</p>