Book Image

Certified Kubernetes Administrator (CKA) Exam Guide

By : Mélony Qin
4 (1)
Book Image

Certified Kubernetes Administrator (CKA) Exam Guide

4 (1)
By: Mélony Qin

Overview of this book

Kubernetes is the most popular container orchestration tool in the industry. The Kubernetes Administrator certification will help you establish your credibility and enable you to efficiently support the business growth of individual organizations with the help of this open source platform. The book begins by introducing you to Kubernetes architecture and the core concepts of Kubernetes. You'll then get to grips with the main Kubernetes API primitives, before diving into cluster installation, configuration, and management. Moving ahead, you’ll explore different approaches while maintaining the Kubernetes cluster, perform upgrades for the Kubernetes cluster, as well as backup and restore etcd. As you advance, you'll deploy and manage workloads on Kubernetes and work with storage for Kubernetes stateful workloads with the help of practical scenarios. You'll also delve into managing the security of Kubernetes applications and understand how different components in Kubernetes communicate with each other and with other applications. The concluding chapters will show you how to troubleshoot cluster- and application-level logging and monitoring, cluster components, and applications in Kubernetes. By the end of this Kubernetes book, you'll be fully prepared to pass the CKA exam and gain practical knowledge that can be applied in your day-to-day work.
Table of Contents (17 chapters)
1
Part 1: Cluster Architecture, Installation, and Configuration
5
Part 2: Managing Kubernetes
10
Part 3: Troubleshooting

Installing and configuring a Kubernetes cluster

This section focuses on the installation of the Kubernetes cluster and the related configurations for it. With a good understanding gained from Chapter 1, where you learned about the Kubernetes cluster architecture and Kubernetes toolings, you will perform the Kubernetes cluster installation the hard way with minikube and kubeadm, and then update the cluster version.

Note that using minikube to spin up a single node cluster is not covered in the CKA exam but it comes quite handy when you’d like to test out Kubernetes in your local machine. The same goes for using kubeadm to install a Kubernetes multi-node cluster, as well as setting up a highly available (HA) Kubernetes cluster.

We expect you to learn both ways while putting more focus on the hands-on lab working with kubeadm. Starting with the next section, we’ll walk you through the process of installing a new Kubernetes cluster and configuration.

Prerequisites...