Certified Kubernetes Administrator (CKA) Exam Guide : Validate Your Knowledge of Kubernetes and Implement It in a Real-Life Production Environment / Mélony Qin.

Format:

Book

Author/Creator:

Qin, Mélony, author.

Language:

English

Subjects (All):

Kubernetes.

Application software--Development--Examinations--Study guides.

Application software.

Physical Description:

1 online resource (322 p.)

Edition:

First edition.

Place of Publication:

Birmingham, England : Packt Publishing Ltd., [2022]

Biography/History:

Qin Melony: Melony Y. QIN, also known as CloudMelon, is the founder of CloudMelon Vis, a tech media and educational platform for technopreneurs in the cloud-native and serverless space, and a former product manager at Microsoft. With a passion for cloud-native technologies, OSS, DevOps, Kubernetes, serverless, data, and AI, Melony has authored multiple books, including the Certified Kubernetes Administrator (CKA) Exam Guide, the Kubernetes Workshop, and Microsoft Azure Infrastructure, all published by Packt Publishing. Melony is a member of the Association for Computing Machinery (ACM) and the Project Management Institute (PMI), leveraging her extensive experience with diverse cloud technologies to drive innovation in the cloud-native, serverless, and generative AI space. She runs the CloudMelonVis YouTube channel and Cloud-Native Innovators newsletter, read by professionals from top tech companies such as Microsoft, Google, Amazon, Dell, and Carrefour.

Summary:

Develop a deep understanding of Kubernetes and the cloud native ecosystem, and pass the CKA exam with confidence with this end-to-end study guide Key Features Get to grips with the core concepts of Kubernetes API primitives Deploy, configure, manage, and troubleshoot Kubernetes clusters Cement your credibility in the job market by becoming a Certified Kubernetes Administrator Book Description 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. What you will learn Understand the fundamentals of Kubernetes and its tools Get hands-on experience in installing and configuring Kubernetes clusters Manage Kubernetes clusters and deployed workloads with ease Get up and running with Kubernetes networking and storage Manage the security of applications deployed on Kubernetes Find out how to monitor, log, and troubleshoot Kubernetes clusters and apps among others Who this book is for This book is for application developers, DevOps engineers, data engineers, and cloud architects who want to pass the CKA exam and certify their Kubernetes Administrator skills in the market. Basic knowledge of Kubernetes is recommended to get the most out of this book.

Contents:

Cover

Title Page

Copyright and Credits

Foreword

Contributors

Table of Contents

Preface

Part 1: Cluster Architecture, Installation, and Configuration

Chapter 1: Kubernetes Overview

CKA exam overview

What to expect in your CKA exam

CKA exam tips and tricks

Cluster architecture and components

Kubernetes core concepts

Containerized workloads

Container images

Container registry

Container runtimes

Kubernetes basic workflow

Kubernetes plugin model

Kubernetes API primitives

Sharing a cluster with namespaces

Kubernetes in-market distribution and ecosystems

Upstream vanilla Kubernetes

Managed Kubernetes

Kubernetes ecosystems

Summary

Chapter 2: Installing and Configuring Kubernetes Clusters

Technical requirements

Hands-on Kubernetes tooling

Core tools

Deployment tools

Other tools

Installing and configuring a Kubernetes cluster

Prerequisites for installing a Kubernetes cluster

Using minikube to set up a single node Kubernetes cluster

Using kubeadm to install a basic Kubernetes cluster

Setting up a highly available cluster with kubeadm

Summary

Mock CKA scenario-based practice test

Scenario 1:

Scenario 2:

Scenario 3 (optional):

FAQs

Chapter 3: Maintaining Kubernetes Clusters

Demystifying Kubernetes cluster maintenance

Upgrading a Kubernetes cluster using kubeadm

Upgrading the master node

Upgrading the worker node

Working with etcd

Exploring the ETCD cluster pod

Listing etcd cluster members

Checking the etcd cluster status

Installing etcd

Backing up etcd

Restoring etcd

Mock CKA scenario-based practice test

Scenario 1

Scenario 2

Scenario 3

Scenario 4

FAQs

Part 2: Managing Kubernetes

Chapter 4: Application Scheduling and Lifecycle Management

The basics of Kubernetes workloads

Imperative management versus declarative management

Understanding pods

Deploying and managing applications

Deploying applications

Performing rolling updates and rollbacks

Rolling updates with kubectl

Rollback

Scaling applications

ReplicaSets

Workload scheduling

Understanding namespaces

Labels, node selectors, and annotations

Node affinity and anti-affinity

Taints and tolerations

Resource management

Configuring applications

Manifest management with kustomize

Common package management and templating with Helm

Scenario 5

Chapter 5: Demystifying Kubernetes Storage

Stateful versus stateless workloads

Kubernetes volumes

Ephemeral storage

Persistent storage

Cracking stateful applications in Kubernetes

Configuring an application with mounted storage

Configuring an application with persistent storage

Notes:

Includes index.

OCLC-licensed vendor bibliographic record.

Description based on print version record.

ISBN:

9781803249957

1803249951

OCLC:

1348482306