Book Image

Kubernetes – An Enterprise Guide - Second Edition

By : Marc Boorshtein, Scott Surovich
Book Image

Kubernetes – An Enterprise Guide - Second Edition

By: Marc Boorshtein, Scott Surovich

Overview of this book

Kubernetes has taken the world by storm, becoming the standard infrastructure for DevOps teams to develop, test, and run applications. With significant updates in each chapter, this revised edition will help you acquire the knowledge and tools required to integrate Kubernetes clusters in an enterprise environment. The book introduces you to Docker and Kubernetes fundamentals, including a review of basic Kubernetes objects. You’ll get to grips with containerization and understand its core functionalities such as creating ephemeral multinode clusters using KinD. The book has replaced PodSecurityPolicies (PSP) with OPA/Gatekeeper for PSP-like enforcement. You’ll integrate your container into a cloud platform and tools including MetalLB, externalDNS, OpenID connect (OIDC), Open Policy Agent (OPA), Falco, and Velero. After learning to deploy your core cluster, you’ll learn how to deploy Istio and how to deploy both monolithic applications and microservices into your service mesh. Finally, you will discover how to deploy an entire GitOps platform to Kubernetes using continuous integration and continuous delivery (CI/CD).
Table of Contents (17 chapters)
15
Other Books You May Enjoy
16
Index

Introducing Kubernetes components and objects

Since this chapter will refer to common Kubernetes objects and components, we wanted to provide a short table of terms that you will see and a brief definition of each to provide context.

In Chapter 3, Kubernetes Bootcamp, we will go over the components of Kubernetes and the base set of objects that are included in a cluster. We will also discuss how to interact with a cluster using the kubectl executable:

Table 2.1: Kubernetes components and objects

While these are only a few of the objects that are available in a Kubernetes cluster, they are the main objects we will mention in this chapter. Knowing what each resource is and having basic knowledge of their functionality will help you understand this chapter and deploy a KinD cluster.

Interacting with a cluster

To test our KinD installation, we will interact with the cluster using the kubectl executable. We will go over kubectl in Chapter 3, Kubernetes Bootcamp...