Introduction to modern network load balancing and proxying

It was brought to my attention recently that there is a dearth of introductory educational material available about modern network load balancing and proxying. I thought to myself: How can this be? Load balancing is one of the core concepts required for building reliable distributed systems. Surely there must be quality information available? I searched and found the pickings are indeed slim. The

[soy-curd]

"モダンなネットワーク負荷分散とプロキシの説明"

[deeeet]

良い...！Envoyのmattkleinによるモダン ロードバランサー（LB）入門．基礎からDistributed SystemにおけるLBの役割，Sidecar Proxy などのトポロジーまで

[itkq]

matt 先生のネットワークロードバランサ体系化の力作、わかりやすい