Google App Engine CNAME record for customers

Question

I have an app engine instance running with *.mydomain.com as whitelisted domain. Each user of my site has a subdomain e.g. foo.mydomain.com or bar.mydomain.com. (I have done this by pointing a CNAME record to ghs.googlehosted.com.

I want my users to be able to host my page on their domains e.g. hello.foo.com pointing to foo.mydomain.com.

Is this possible with GAE due to the whitelist domains and if not is this possible in google-cloud in general?

Answer 1

Okay so unfortunately in order to achieve this I could not use AppEngine. Instead I created the same deployment in ContainerEngine and exposed a static IP to which i create A records foo.mydomain.com A 104.X.Y.Z and now clients can create CNAME records to foo.mydomain.com.

Hope this helps someone in the future