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

Argo CD main objects

In this section, we will look at some of the main Argo CD objects you need to know about. Argo CD is quite simple and most of what you will do can be summarized in two objects: AppProject and Application.

In this section, we will not mention all the different objects Argo CD has since that is not the main focus of this book. Check out the Further reading section to learn more.

AppProject

Projects allow you to group applications and structure them according to any group logic you need. Using projects, you can do the following:

  • Limit the Git source repositories that can be used to deploy applications
  • Restrict the clusters and namespaces destination that the applications can be deployed to
  • Limit the type of objects that can be deployed (for example, Deployments, Secrets, DaemonSets, and so on)
  • Set roles to limit the permissions that are allowed by groups and/or JWTs

When Argo CD is installed, it comes with a default project. If...