stiang/ec2-purge-snapshots — pull request #1 by ejsarge (2011-10-25 13:53:52+00:00)
Title: Can now handle specifying snapshots by tag (or multiple tags) instead of using the volume ids.

This allows a configuration where there is a single instance which may be re-initialized from a new base image
with new volumes built from old snapshots. The volume id changes but taking a snapshot with the same tags allows this script to purge the snapshots as if they were from a single volume. See [Keeping an Amazon EC2 Instance Up with Chef and Auto-Scaling](http://www.trailhunger.com/blog/technical/2011/05/28/keeping-an-amazon-elastic-compute-cloud-ec2-instance-up-with-chef-and-auto-scaling/) for more information.