L4 proxy support #1
Description
This is a good starting point. Similar to an HAProxy style TCP proxy. This will help us figure out a good concurrency architecture that works well with io_uring and give us a chance to play around with SOCKMAP via eBPF. Let's use this issue to draft out some architectural thoughts.
I found this website to be a pretty good resource for io_uring code examples: https://unixism.net/loti/tutorial/index.html. It sounds like we should probably be using liburing instead of the system calls directly because there's a lot of boilerplate involved.