Great point about the need for production worthiness. FWIW the load balancing pool management, etc., in linkerd is straight from Finagle, which is probably more proven than Kubernetes, if anything (powers Twitter, Pinterest, SoundCloud, etc.) Some K8s-specific bits are fresher code, but even those have been tested at non-trivial scale, e.g. https://monzo.com/blog/2016/09/19/building-a-modern-bank-bac...