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 GitOps – Argo CD

In the previous chapter, we learned how to create and run a pipeline using Tekton to build and deploy an application. While Tekton is great for building and performing other actions that are usually related to continuous integration (CI), GitOps is becoming the norm for continuous deployment (CD) regarding Kubernetes-native applications. In this chapter, we will dive into GitOps and talk about one of the best tools for CD: Argo CD.

In this chapter, we will cover the following topics:

  • What is GitOps?
  • What is Argo CD?
  • Application delivery model
  • Installing OpenShift GitOps
  • Configuring Argo CD against multiple clusters
  • Argo CD definitions and challenges
  • Argo CD main objects
  • Deploying an application using GitOps
  • Deploying to multiple clusters

Let’s dive in!


The source code used in this chapter is available at