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

Technical requirements

To get started, we need to make sure your local machine meets the following technical requirements.

In case you’re on Linux, we’re demonstrating examples with a minikube cluster – check out Chapter 2, Installing and Configuring Kubernetes Clusters. Make sure that your test environment meets the following requirements:

  • A compatible Linux host. We recommend a Debian-based Linux distribution such as Ubuntu 18.04 or later.
  • Make sure that your host machine has at least 2 GB of RAM, 2 CPU cores, and about 20 GB of free disk space.

In case you’re on Windows 10 or Windows 11, make note of the following:

  • We recommend updating Docker Desktop to the latest version and creating a local docker-desktop Kubernetes cluster. Refer to this article to understand how to set up a local Kubernetes cluster with Docker Desktop:
  • We also recommend using Windows Subsystem for Linux 2 (WSL 2) to test the environment &...