One cool use that we are using Lambda for is to destroy EBS snapshots past a certain date. We tag snapshots with a 'retention_days' tag and then a Lambda proce

One cool use that we are using Lambda for is to destroy EBS snapshots past a certain date. We tag snapshots with a 'retention_days' tag and then a Lambda process kicks off daily and deletes the old snapshots. The great thing about this is we can lock down the DeleteSnapshot api call so that none of our instances have access to that call anymore.