Summary

In this chapter, we walked you through a brief history of software development and explained some of the challenges in the VM era. With the emergence of Docker, containerization technologies open a new gate in terms of resolving the problems that existed with earlier methods of software development.

We walked you through the basics of Docker and detailed the underlying features of Linux such as namespaces and cgroups, which enable containerization. We then brought up the concept of container orchestration and illustrated the problems it aims to solve. Finally, we gave a very brief overview of some of the key features and methodologies of Kubernetes.

In the next chapter, we will pe a little deeper and take a look at Kubernetes' architecture to understand how it works.