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OpenShift Multi-Cluster Management Handbook

OpenShift Multi-Cluster Management Handbook

By : Giovanni Fontana, Rafael Pecora
4.5 (2)
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OpenShift Multi-Cluster Management Handbook

OpenShift Multi-Cluster Management Handbook

4.5 (2)
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)
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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

Network policies

As we already mentioned, OpenShift uses an SDN, and preferably, the network traffic control should be done using the features the cluster provides itself. In our experience, having implemented OpenShift in many organizations, we have often heard doubts regarding how to control network traffic within the cluster, as most customers are used to doing it by using regular firewall devices. In this section, we will walk you through how to control network traffic to be able to allow or deny network traffic as needed. Before giving you some options to do that, we first need to differentiate the different traffic directions that we have in a cluster.

North-south traffic

OpenShift has been designed to cover the most common scenarios, even regarding networking. When an incoming connection comes from outside the cluster to an application, it is possible to control network traffic into the cluster using an external firewall and/or the OpenShift Ingress solution.

East-west...

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OpenShift Multi-Cluster Management Handbook
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