Create a BuilderNet recipe (which includes a BuilderHub instance)

[metachris]

BuilderNet wants to use builder-playground as foundation for automated e2e testing.

Besides the present L1 components, BuilderNet needs an instance of BuilderHub. This is used by TDX VM instances to receive their configuration and list of peers.

A first step would be to create/extend a recipe to include BuilderHub on top of a regular L1 setup. That will then allow us to plug in builder TDX nodes using QEMU, which will be huge!

There has been some work done on a PoC that's kinda working but not fully, and which could be a good reference: https://github.com/flashbots/buildernet-playground/

Also note that BuilderHub supports a development mode that it would run in, but which hasn't been tested in a while and might need an update: https://github.com/flashbots/builder-hub/blob/main/docs/devenv-setup.md

cc/ @MoeMahhouk

[gpevnev]

@MoeMahhouk maybe a silly question, but still. Why does builderhub needs to run in QEMU VM and can't be dockerized and included in compose?

[metachris]

It ships as a TDX VM image with a whole operating system - kernel, init system, bunch of services, and we want to test it fully e2e.