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

Summary

This chapter covered Kubernetes networking. It covered the Kubernetes networking model and core networking concepts, as well as how to choose CNI plugins. Working with the Ingress controller and configuring and leveraging CoreDNS in Kubernetes helps you understand how to manage cluster networking and controller access to the applications in Kubernetes.

Make sure you have practiced these examples as you will encounter them often. Notice that this chapter covers 20% of the CKA exam content. Practicing the kubectl commands will help you with better time management, which leads to a greater chance of success in the CKA exam. Together with what we’ll talk about in the next chapter about monitoring and logging Kubernetes clusters and applications, you will get a better idea of how to manage Kubernetes clusters in your daily job as a Kubernetes administrator. Stay tuned!