This book discusses the balance between FaaS on our own infrastructure and serverless FaaS. We try to simplify and unify the deployment model of FaaS by choosing three major FaaS platforms that allow us to deploy Docker containers as functions, which we discuss in this book.

With Docker containers as deployment units (functions), Docker as a development tool, and Docker as the orchestration engine and networking layer, we can develop serverless applications and deploy them on our available hardware, on our own private cloud infrastructure, or a hybrid cloud that mixes our hardware together with the public cloud's hardware.

One of the most important points is that it is easy enough to take care of this kind of infrastructure using a small team of developers with Docker skills.

Looking back the previous Figure 1.2. If you're getting the clue after reading this chapter up to here, let's guess a bit that what would be the contents to be discussed in this book. Where should we be in this diagram? The answer is at the end of this chapter.