Book Image

OpenShift Multi-Cluster Management Handbook

By : Giovanni Fontana, Rafael Pecora
5 (1)
Book Image

OpenShift Multi-Cluster Management Handbook

5 (1)
By: Giovanni Fontana, Rafael Pecora

Overview of this book

For IT professionals working with Red Hat OpenShift Container Platform, the key to maximizing efficiency is understanding the powerful and resilient options to maintain the software development platform with minimal effort. OpenShift Multi-Cluster Management Handbook is a deep dive into the technology, containing knowledge essential for anyone who wants to work with OpenShift. This book starts by covering the architectural concepts and definitions necessary for deploying OpenShift clusters. It then takes you through designing Red Hat OpenShift for hybrid and multi-cloud infrastructure, showing you different approaches for multiple environments (from on-premises to cloud providers). As you advance, you’ll learn container security strategies to protect pipelines, data, and infrastructure on each layer. You’ll also discover tips for critical decision making once you understand the importance of designing a comprehensive project considering all aspects of an architecture that will allow the solution to scale as your application requires. By the end of this OpenShift book, you’ll know how to design a comprehensive Red Hat OpenShift cluster architecture, deploy it, and effectively manage your enterprise-grade clusters and other critical components using tools in OpenShift Plus.
Table of Contents (23 chapters)
Part 1 – Design Architectures for Red Hat OpenShift
Part 2 – Leverage Enterprise Products with Red Hat OpenShift
Part 3 – Multi-Cluster CI/CD on OpenShift Using GitOps
Part 4 – A Taste of Multi-Cluster Implementation and Security Compliance
Part 5 – Continuous Learning

OpenShift networking

Throughout this book, we continue to reaffirm the importance of choosing the right architecture as it directly impacts the way the cluster will work. We expect that, at this time, all the required network decisions have been made and implemented already – there are a lot of network changes that are not possible after cluster deployment.

Although we already discussed networks in Chapter 2, Architecture Overview and Definitions, and deployed our cluster, we believe that it is important to expand on this topic a bit more and include more details about the differences when considering network usage.

Red Hat OpenShift uses a default Software-Defined Network (SDN) based on Open vSwitch ( that creates a multilayer network solution. This additional layer works as a virtual switch on top of the network layer, and it is responsible for creating, maintaining, and isolating traffic on the virtual LAN.

Because of its multiple...