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

Kubernetes in Today’s World

If you’re reading this book, chances are you’ve been, or still are, in the tech/IT world in some capacity, whether it’s from the operations side, the development side, or both – perhaps even technical leadership or product management. In any case, you’ve most likely heard about a platform/technology called Kubernetes. From how every company, both small and large, is talking about Kubernetes, a lot of engineers and leadership personnel think it’s going to solve many problems. Although that’s true, there’s a twist, and with everything that makes our lives easier, there are caveats.

This chapter is primarily theoretical and will answer a lot of the questions you most likely have about moving to the cloud, hybrid environments, cloud-native/specific applications, and how Kubernetes is taking over the microservice ecosystem.

By the end of this chapter, you’ll be able to answer some of the questions about the pros and cons of implementing Kubernetes. You’ll have a solid understanding of why engineers and leadership teams alike are moving to Kubernetes. The gears will also start moving in your head concerning what your current application(s) look like and whether Kubernetes would be a good fit.

In this chapter, we’re going to cover the following topics:

  • The shift to the cloud
  • Kubernetes, the new cloud OS and data center
  • Cloud-native applications and why they’re important
  • Abstraction is easier, but with a twist
  • Start slow and go fast