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

Handling multiple tenants

There are many different ways to work with multiple tenants on OpenShift, with the most obvious one being to have a single cluster for each tenant. However, this is not always possible or the best option: having dedicated hardware and a platform for every tenant can be costly, difficult to maintain, and not efficient. With shared clusters, multiple workloads from different tenants share the same computing capacity, enabling more efficient computing usage.

OpenShift can provide isolation for objects, computing, network, and other hardware resources for each tenant, ensuring they are isolated from each other. In the next section, we are going to look at the different types of isolation and how to utilize them.

Multitenancy in OpenShift

When it comes to multitenancy on OpenShift, several objects are involved. The following table shows some important resources that provide multi-tenant capabilities, all of which we are going to cover in this chapter: