Serverless
In the very first chapter, we briefly touched on a definition of Serverless—a newer cloud delivery model that appeared around 2010 and is known as Function as a Service or FaaS.
Serverless
This is a computing model where code is written as small functions that are built and run without the need to manage any servers. Those functions are triggered by events (for example, the user clicked a button on the web page, uploaded a file, and so on).
Despite the name, the truth is that Serverless computing still relies on real hardware servers underneath. However, servers running the functions are completely abstracted away from the application development. In this model, the provider handles all operations that are required to run the code: provisioning, scaling, maintenance, security patching, and so on. Since you don’t need to take care of servers ever, the model is called Serverless.
Serverless brings in several advantages besides a lack of routine server...
