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)
Part 1: First 20 Kubernetes Concepts – In and Out of the Cloud
Part 2: Next 15 Kubernetes Concepts – Application Strategy and Deployments
Part 3: Final 15 Kubernetes Concepts – Security and Monitoring

Getting to know virtualized bare metal

If/when you’re planning to run Kubernetes on-prem, two questions may pop up:

  • Where are we going to run Kubernetes?
  • How are we going to run Kubernetes?

In today’s world, chances are you’re not going to run Kubernetes directly on bare metal (although you could, and some companies do). You’ll probably run Kubernetes on a hypervisor such as ESXi or in a private cloud such as OpenStack. You may also run Kubernetes on virtualized bare metal, which is different than running it on a hypervisor.

In this section, let’s learn what virtualized bare metal is and a few ways that you can run it.

Virtualizing your environment

When thinking about virtualized bare metal, a lot of engineers will most likely think about a hypervisor such as VMware’s ESXi or Microsoft’s Hyper-V. Both are great solutions and allow you to take a bare-metal server that used to only be able to run one operating...