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
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16
Index

Reviewing your KinD cluster

With a Kubernetes cluster now available, we have the ability to look at Kubernetes objects first-hand. This will help you understand the next chapter, Kubernetes Bootcamp, where we will cover many of the base objects included in a Kubernetes cluster. While we will explain most objects in the next chapter, we need to introduce the objects that Kubernetes uses to provide storage. In the next section we introduce the objects included with KinD that provide persistent storage to your workloads. In particular, we will discuss the storage objects that are included with your KinD cluster.

KinD storage objects

Remember that KinD includes Rancher's auto-provisioner to provide automated persistent disk management for the cluster. Kubernetes has a number of storage objects, there is one object that the auto-provisioner does not require since it uses a base Kubernetes feature: it does not require a CSIdriver. Since the ability to use local host paths as...