Book Image

Docker for Serverless Applications

By : Chanwit Kaewkasi
Book Image

Docker for Serverless Applications

By: Chanwit Kaewkasi

Overview of this book

Serverless applications have gained a lot of popularity among developers and are currently the buzzwords in the tech market. Docker and serverless are two terms that go hand-in-hand. This book will start by explaining serverless and Function-as-a-Service (FaaS) concepts, and why they are important. Then, it will introduce the concepts of containerization and how Docker fits into the Serverless ideology. It will explore the architectures and components of three major Docker-based FaaS platforms, how to deploy and how to use their CLI. Then, this book will discuss how to set up and operate a production-grade Docker cluster. We will cover all concepts of FaaS frameworks with practical use cases, followed by deploying and orchestrating these serverless systems using Docker. Finally, we will also explore advanced topics and prototypes for FaaS architectures in the last chapter. By the end of this book, you will be in a position to build and deploy your own FaaS platform using Docker.
Table of Contents (15 chapters)
Title Page
Packt Upsell
Contributors
Preface
Index

Chapter 5. The Fn Project

This chapter introduces an FaaS platform, the Fn Project. It is another great FaaS framework developed by a team at Oracle Inc. Fn is one of the easiest projects that allows us to deploy an FaaS platform on a plain Docker infrastructure.

This chapter begins with a discussion of what the Fn Project is. It then moves on to look at how its components are organized and what its overall architecture is. We will then learn how to use the Fn CLI to prepare and deploy functions. The chapter then ends with a discussion of how to use Fn subprojects for its UI, scaling, and monitoring of the Fn cluster itself.

We will cover the following topics in this chapter:

  • The Fn Project
  • The Fn's architecture
  • Using Fn CLI
  • Deploying a local function
  • Deploying Fn on Docker Swarm
  • Monitoring Fn with its built-in UI
  • Log analysis with a familiar tool