It'd be incredibly easy to implement a v1, a small shell script. AWS has "security groups", which generally are used to split up the roles of machines. (They're used for firewall rules, but in practice having these serve as role metadata is quite useful as well.)

Chaos Monkey is just a script that runs "ec2-terminate-instance" commands on node in certain security groups at a certain rate, and boots machines at the same rate.

Of course, the devil is in the details, but at a high level this wouldn't be too specific to the domain the infrastructure is built around.