A Deep Dive into Docker

The advent of Docker has revolutionized the way we run, deploy, and maintain our applications. With the rise of containerization, we’ve been able to abstract away much of the underlying infrastructure and dependencies that applications rely on, making it easier than ever to deploy and manage them across different environments. However, with great power comes great responsibility, and we must understand the internals of Docker and establish good practices to ensure that our applications are secure, reliable, and performant.

In this chapter, we’ll delve into the nitty-gritty of Docker, exploring its architecture, components, and key features. We’ll also examine some of the helper projects that have emerged on top of Docker, such as Docker Compose and Kubernetes, and learn how to use them to build more complex and scalable applications. Throughout, we’ll emphasize best practices for working with Docker, such as creating efficient...