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

Preparing for the installation

As you have seen in the previous sections, the prerequisites are very important, and any mistake could be an Achilles' heel for the OpenShift cluster installation and functioning. Failure to prepare the prerequisites correctly will cause errors during the cluster deployment that are not always easy to troubleshoot to find the root cause. That said, we would like to stress the importance of preparing and validating the pre-requisites correctly before starting the cluster deployment.

To start the installation using the UPI method, you will need the following:

  • An SSH key pair
  • A pull secret for the cluster, which you can generate by accessing, with a valid user subscription
  • OpenShift installer binary
  • OpenShift command-line tools
  • Installation configuration file (install-config.yaml)

In the following sections, we will detail all of those steps.

An SSH key pair