Containerization has changed the DevOps game completely, with Docker and Kubernetes playing important roles in altering the flow of app creation and deployment. This book will help you acquire the knowledge and tools required to integrate Kubernetes clusters in an enterprise environment.

The book begins by introducing you to Docker and Kubernetes fundamentals, including a review of basic Kubernetes objects. You'll then get to grips with containerization and understand its core functionalities, including how to create ephemeral multinode clusters using kind. As you make progress, you'll learn about cluster architecture, Kubernetes cluster deployment, and cluster management, and get started with application deployment. Moving on, you'll find out how to integrate your container to a cloud platform and integrate tools including MetalLB, externalDNS, OpenID connect (OIDC), pod security policies (PSPs), Open Policy Agent (OPA), Falco, and Velero. Finally, you will discover how to deploy an entire platform to the cloud using continuous integration and continuous delivery (CI/CD).

By the end of this Kubernetes book, you will have learned how to create development clusters for testing applications and Kubernetes components, and be able to secure and audit a cluster by implementing various open-source solutions including OpenUnison, OPA, Falco, Kibana, and Velero.

What you will learn
* Create a multinode Kubernetes cluster using kind
* Implement Ingress, MetalLB, and ExternalDNS
* Configure a cluster OIDC using impersonation
* Map enterprise authorization to Kubernetes
* Secure clusters using PSPs and OPA
* Enhance auditing using Falco and EFK
* Back up your workload for disaster recovery and cluster migration
* Deploy to a platform using Tekton, GitLab, and ArgoCD

Who this book is for

This book is for anyone interested in DevOps, containerization, and going beyond basic Kubernetes cluster deployments. DevOps engineers, developers, and system administrators looking to enhance their IT career paths will also find this book helpful. Although some prior experience with Docker and Kubernetes is recommended, this book includes a Kubernetes bootcamp that provides a description of Kubernetes objects to help you if you are new to the topic or need a refresher.

容器化已经完全改变了DevOps游戏，Docker和Kubernetes在改变应用创建和部署的流程方面发挥了重要作用。本书将帮助你获得在企业环境中整合Kubernetes集群所需的知识和工具。

本书首先向你介绍了Docker和Kubernetes的基础知识，包括对基本Kubernetes对象的回顾。然后，你将掌握容器化，了解其核心功能，包括如何使用种类创建短暂的多节点集群。随着你的进展，你将了解集群架构、Kubernetes集群部署和集群管理，并开始进行应用部署。接着，你会发现如何将你的容器整合到云平台上，并整合包括MetalLB、externalDNS、OpenID connect（OIDC）、pod安全策略（PSP）、Open Policy Agent（OPA）、Falco和Velero等工具。最后，你将发现如何使用持续集成和持续交付（CI/CD）将整个平台部署到云中。

在这本《Kubernetes》结束时，你将学会如何为测试应用程序和Kubernetes组件创建开发集群，并能够通过实施各种开源解决方案（包括OpenUnison、OPA、Falco、Kibana和Velero）来保护和审计一个集群。

你将学到什么

* 使用种类创建一个多节点Kubernetes集群

* 实现Ingress、MetalLB和ExternalDNS

* 使用impersonation配置集群的OIDC

* 将企业授权映射到Kubernetes上

* 使用PSP和OPA保护集群

* 使用Falco和EFK加强审计工作

* 为灾难恢复和集群迁移备份你的工作负载

* 使用Tekton、GitLab和ArgoCD部署到一个平台上

本书适用对象

本书适用于对DevOps、容器化和超越基本Kubernetes集群部署感兴趣的人。希望提高自己的IT职业道路的DevOps工程师、开发人员和系统管理员也会发现本书很有帮助。虽然建议在之前有一些Docker和Kubernetes的经验，但本书包括一个Kubernetes训练营，提供了Kubernetes对象的描述，如果你是这个主题的新手或需要复习，可以帮助你。