boto/boto — pull request #376 by jbarciauskas (2011-10-20 17:56:27+00:00)
Title: Create command line tool for auto-scaling groups

This command line tool supports:

Create auto scaling group
Create launch configuration
Delete ASG
Delete LC
Describe ASG
Describe LC
Update an image by creating a new LC based on the old one, setting the image ID and deleting the old one
Migrate instances from old to new image by terminating existing instances one by one and waiting for the ASG to spin up a new one to replace it, until all the old instances are gone