How to set up a staging environment on Google App Engine

Question

Having properly configured a Development server and a Production server, I would like to set up a Staging environment on Google App Engine useful

Answer 1

If separate datastore is required, option B looks cleaner solution for me because:

1. You can keep versions feature for real versioning of production applications.
2. You can keep versions feature for traffic splitting.
3. You can keep namespaces feature for multi-tenancy.
4. You can easily copy entities from one app to another. It's not so easy between namespaces.
5. Few APIs still don't support namespaces.
6. For teams with multiple developers, you can grant upload to production permission for a single person.