When AWS introduced the first Function-as-a-Service (FaaS) runtime, Lambda, in 2014 and subsequently enabled developers to evolve beyond Microserrvices to create Serverless application architectures, it was inevitable that there would eventually be on premises variants. At its core a FaaS runtime requires a container engine of some sort that it can insert functions into, so it is no surprise that almost four years after the Lambda announcement that there are now five FaaS runtimes installable on top of Kubernetes (K8S) that have more than 3,000 stars on GitHub.
