Talking about serverless architecture goes way beyond Function as a Service (FaaS) like AWS Lambdas. Two of the reasons why Lambdas are so attractive are their auto-scale (in & out) capability and their pay-per-use pricing model. In order to leverage these capabilities and reach the full benefits of a serverless architecture, we need our other infrastructure components to have the same flexibility
![What a typical 100% Serverless Architecture looks like in AWS!](https://cdn-ak-scissors.b.st-hatena.com/image/square/e66cb9102f659639d73b945f0caaf9ca29852cf3/height=288;version=1;width=512/https%3A%2F%2Fmiro.medium.com%2Fv2%2Fresize%3Afit%3A1200%2F1%2AJxDFqhb95iPclzr2FJcQAQ.png)