Why I Want This?

Firebase splits functions to individual Docker Container. This works great for scaling, but with that it is not easy to share global values, for example, user's access key to external services and session specific values.

While we can use REDIS and such hosted on GCP, it would be more "batteries included" platform if this feature is offered as a built-in functionality for the functions without resorting to Firestore or RTDB.

What I look for is to globally share key values and also auto-expire them.