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OpenShift Multi-Cluster Management Handbook

You're reading from   OpenShift Multi-Cluster Management Handbook Go from architecture to pipelines using GitOps

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Product type Paperback
Published in Nov 2022
Publisher Packt
ISBN-13 9781803235288
Length 458 pages
Edition 1st Edition
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Authors (2):
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Rafael Pecora Rafael Pecora
Author Profile Icon Rafael Pecora
Rafael Pecora
Giovanni Fontana Giovanni Fontana
Author Profile Icon Giovanni Fontana
Giovanni Fontana
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Toc

Table of Contents (23) Chapters Close

Preface 1. Part 1 – Design Architectures for Red Hat OpenShift
2. Chapter 1: Hybrid Cloud Journey and Strategies FREE CHAPTER 3. Chapter 2: Architecture Overview and Definitions 4. Chapter 3: Multi-Tenant Considerations 5. Chapter 4: OpenShift Personas and Skillsets 6. Part 2 – Leverage Enterprise Products with Red Hat OpenShift
7. Chapter 5: OpenShift Deployment 8. Chapter 6: OpenShift Troubleshooting, Performance, and Best Practices 9. Chapter 7: OpenShift Network 10. Chapter 8: OpenShift Security 11. Part 3 – Multi-Cluster CI/CD on OpenShift Using GitOps
12. Chapter 9: OpenShift Pipelines – Tekton 13. Chapter 10: OpenShift GitOps – Argo CD 14. Chapter 11: OpenShift Multi-Cluster GitOps and Management 15. Part 4 – A Taste of Multi-Cluster Implementation and Security Compliance
16. Chapter 12: OpenShift Multi-Cluster Security 17. Chapter 13: OpenShift Plus – a Multi-Cluster Enterprise Ready Solution 18. Chapter 14: Building a Cloud-Native Use Case on a Hybrid Cloud Environment 19. Part 5 – Continuous Learning
20. Chapter 15: What’s Next 21. Index 22. Other Books You May Enjoy

Network segmentation

An important security aspect in any Kubernetes cluster is how Pods communicate between each other and also ingress and egress communication. Currently, there isn’t any graphical view on Kubernetes to check how the network communications are performed in real time, and neither allowed nor blocked flows. To help with that, ACS brings the Network Graph feature, which allows you to view the active communications in real time and also define and apply NPs to allow or block network traffic. Click on the Network Graph menu to access the feature:

Figure 12.54 – Network Graph feature

Select the rhacs-operator namespace to view what the network graph looks like:

Figure 12.55 – Network graph for the rhacs-operator namespace

You can change the view to see only active connections, allowed connections, or all types of connection flows.

Network flows

Red Hat Advanced Cluster Security can learn the network...

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