[velominati]

I'm doing a talk at Next tomorrow about just that. For now you are probably better of using Ruby on App Engine, assuming you need to use redis as a cache. Another new feature that we launched today is VPC Connectors, which allow Cloud Functions and App Engine to connect to servers/services in a VPC.

Cloud Run will have support VPC Connectors soon (it is supported, we just haven't wired up the API/UI). After that, its your choice, they run on similar infrastructure so you just need to decide if you want to live in containerland or source code land.