I started writing “Serverless Architectures” in May 2016. At that point I'd recently finished up at my previous job, had just been to the first Serverlessconf, hadn't done much writing in a while, had some time on my hands, and so decided to put a few ideas together.
AWS announced a new service — the Serverless Application Repository (SAR) — at re:Invent 2017. The general goal of SAR is to make it easier to distribute, and consume, applications that have been developed using AWS Serverless products, like Lambda.
Lambda is a wonderful platform. However, it is still in its early years, and has a number of limitations and rough edges. One of those edges — that of the ability to overwhelm downstream systems with unfettered load — got a lot smoother at re:Invent 2017.