I have an app engine instance project under let's say: cloud.domain.com
My goal is to be able to give a user of my a unique url that they can then map to their own domain using a CNAME record. Basically how you would connect to a domain to a squarespace account.
It could really be anything like so:
userid.cloud.domain.com
userid.domain.com
Is this even possible with GAE? I've researched wildcard mappings but there really isn't any solid advice on the topic.
Is this even possible or should I look elsewhere to accomplish this kind of task?