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)
1
Part 1 – Design Architectures for Red Hat OpenShift
6
Part 2 – Leverage Enterprise Products with Red Hat OpenShift
11
Part 3 – Multi-Cluster CI/CD on OpenShift Using GitOps
15
Part 4 – A Taste of Multi-Cluster Implementation and Security Compliance
19
Part 5 – Continuous Learning

Deploying an application using GitOps

In this practical exercise, we will build and deploy our sample application in three different namespaces to simulate an application life cycle composed of development, QA, and production environments. The following diagram shows the delivery model we will use in this exercise to practice Argo CD deployments. Use it as much as you want as a starting point to build a comprehensive and complex ALM workflow that’s suitable for your needs:

Figure 10.11 – Application delivery model using Tekton, Argo CD, and Git

Once again, we are going to use the content we have prepared in this book’s GitHub repository. To do this, you must fork this repository to your GitHub account: https://github.com/PacktPublishing/OpenShift-Multi-Cluster-Management-Handbook. Once you have forked it, follow the instructions in this section to put this workflow into practice.

Building a new image version

In this section, we will...