Book Image

50 Kubernetes Concepts Every DevOps Engineer Should Know

By : Michael Levan
Book Image

50 Kubernetes Concepts Every DevOps Engineer Should Know

By: Michael Levan

Overview of this book

Kubernetes is a trending topic among engineers, CTOs, CIOs, and other technically sound professionals. Due to its proliferation and importance for all cloud technologies, DevOps engineers nowadays need a solid grasp of key Kubernetes concepts to help their organization thrive. This book equips you with all the requisite information about how Kubernetes works and how to use it for the best results. You’ll learn everything from why cloud native is important to implementing Kubernetes clusters to deploying applications in production. This book takes you on a learning journey, starting from what cloud native is and how to get started with Kubernetes in the cloud, on-premises, and PaaS environments such as OpenShift. Next, you’ll learn about deploying applications in many ways, including Deployment specs, Ingress Specs, and StatefulSet specs. Finally, you’ll be comfortable working with Kubernetes monitoring, observability, and security. Each chapter of 50 Kubernetes Concepts Every DevOps Engineer Should Know is built upon the previous chapter, ensuring that you develop practical skills as you work through the code examples in GitHub, allowing you to follow along while giving you practical knowledge. By the end of this book, you’ll be able to implement Kubernetes in any environment, whether it’s an existing environment, a greenfield environment, or your very own lab running in the cloud or your home.
Table of Contents (14 chapters)
1
Part 1: First 20 Kubernetes Concepts – In and Out of the Cloud
6
Part 2: Next 15 Kubernetes Concepts – Application Strategy and Deployments
9
Part 3: Final 15 Kubernetes Concepts – Security and Monitoring

Security Reality Check

Security in general, and especially in Kubernetes, is an ironic thing. Everyone knows it’s important, yet it’s not held to the same necessity as, for example, developers. In fact, if you look at the ratio, there’s probably 1 security engineer to 100 developers. Environments aren’t secure out of the box, especially when it comes to access control, yet security is arguably one of the most overlooked pieces of Kubernetes. Because of the lack of security awareness around Kubernetes, this chapter is going to focus on a little bit of everything that you should be thinking about when securing a Kubernetes environment.

From a theoretical perspective, you’ll be learning how to think about security in Kubernetes. From a hands-on perspective, you’ll be learning not only how to implement security practices, but which tools and platforms to use.

When thinking about production, this chapter may very well be the most important...