How do I access my AppEngine DataStore entities from my Compute Engine VM?

Question

My app is running on App Engine, but I would like to access its NDB DataStore entities from my Compute Engine VM to do some processing and write the results back to the App

Answer 1

Aside from options that @David explained, you can also look into Managed VMs: they are a cross between Compute Engine and App Engine - basically a managed Compute Engine instance that has access to App Engine services.