Book Image

50 Kubernetes Concepts Every DevOps Engineer Should Know

By : Michael Levan
5 (1)
Book Image

50 Kubernetes Concepts Every DevOps Engineer Should Know

5 (1)
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

Introducing hybrid services

From 2014 to 2015, what most organizations and engineers alike were reading sounded something similar to data centers will go away, the cloud is the future, and everyone that isn’t in the cloud will be left behind. Organizations started to feel pressured to move to the cloud and engineers started to get nervous because the skills they had honed for years were becoming obsolete. Coming back to the present, which is 2022 at the time of writing this book, mainframes still exist… so, yes, many organizations are still running on-prem workloads. Engineers that have an infrastructure and systems background are doing quite well for themselves in the new cloud-native era. The reason why is that 100% of the skills they have learned, other than racking and stacking servers, are still very relevant for the cloud and Kubernetes.

In the Understanding operating systems and infrastructure section, you may remember reading about on-prem workloads and how...