Microsoft has a similar reference application [1].

There are comments arguing these architectures create a ridiculous amount of overhead for what would be a simple application traditionally, and others countering that the point is to show the underlying tech in the context of a "simple" problem. I think there's a large amount of truth for both sides.

It feels like there's a great paradigm shift on the horizon, and hopefully a good set of abstractions to build with. We're programming in machine-specific assembly languages, waiting for a high-level language to come along so we don't worry about things like calling conventions anymore.

[1] https://github.com/dotnet-architecture/eShopOnContainers