Book Image

Cloud Native with Kubernetes

By : Alexander Raul
Book Image

Cloud Native with Kubernetes

By: Alexander Raul

Overview of this book

Kubernetes is a modern cloud native container orchestration tool and one of the most popular open source projects worldwide. In addition to the technology being powerful and highly flexible, Kubernetes engineers are in high demand across the industry. This book is a comprehensive guide to deploying, securing, and operating modern cloud native applications on Kubernetes. From the fundamentals to Kubernetes best practices, the book covers essential aspects of configuring applications. You’ll even explore real-world techniques for running clusters in production, tips for setting up observability for cluster resources, and valuable troubleshooting techniques. Finally, you’ll learn how to extend and customize Kubernetes, as well as gaining tips for deploying service meshes, serverless tooling, and more on your cluster. By the end of this Kubernetes book, you’ll be equipped with the tools you need to confidently run and extend modern applications on Kubernetes.
Table of Contents (22 chapters)
1
Section 1: Setting Up Kubernetes
5
Section 2: Configuring and Deploying Applications on Kubernetes
11
Section 3: Running Kubernetes in Production
16
Section 4: Extending Kubernetes

Kubernetes' architecture

Kubernetes is an orchestration tool that can run on cloud VMs, on VMs running in your data center, or on bare metal servers. In general, Kubernetes runs on a set of nodes, each of which can each be a VM or a physical machine.

Kubernetes node types

Kubernetes nodes can be many different things – from a VM, to a bare metal host, to a Raspberry Pi. Kubernetes nodes are split into two distinct categories: first, the master nodes, which run the Kubernetes control plane applications; second, the worker nodes, which run the applications that you deploy onto Kubernetes.

In general, for high availability, a production deployment of Kubernetes should have a minimum of three master nodes and three worker nodes, though most large deployments have many more workers than masters.

The Kubernetes control plane

The Kubernetes control plane is a suite of applications and services that run on the master nodes. There are several highly specialized services...