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Mastering OpenStack

You're reading from   Mastering OpenStack Implement the latest techniques for designing and deploying an operational, production-ready private cloud

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Product type Paperback
Published in Nov 2024
Publisher Packt
ISBN-13 9781835468913
Length 392 pages
Edition 3rd Edition
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Author (1):
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Omar Khedher Omar Khedher
Author Profile Icon Omar Khedher
Omar Khedher
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Table of Contents (17) Chapters Close

Preface 1. Part 1: Architecting the OpenStack Ecosystem
2. Chapter 1: Revisiting OpenStack – Design Considerations FREE CHAPTER 3. Chapter 2: Kicking Off the OpenStack Setup – The Right Way (DevSecOps) 4. Chapter 3: OpenStack Control Plane – Shared Services 5. Chapter 4: OpenStack Compute – Compute Capacity and Flavors 6. Chapter 5: OpenStack Storage – Block, Object, and File Shares 7. Chapter 6: OpenStack Networking – Connectivity and Managed Service Options 8. Part 2: Operating the OpenStack Cloud Environment
9. Chapter 7: Running a Highly Available Cloud – Meeting the SLA 10. Chapter 8: Monitoring and Logging – Remediating Proactively 11. Chapter 9: Benchmarking the Infrastructure – Evaluating Resource Capacity and Optimization 12. Part 3: Extending the OpenStack Cloud
13. Chapter 10: OpenStack Hybrid Cloud – Design Patterns 14. Chapter 11: A Hybrid Cloud Hyperscale Use Case – Scaling a Kubernetes Workload 15. Index 16. Other Books You May Enjoy

The compute service components

The compute service is composed of multiple components that take care of incoming compute requests and then launch and manage instances, as depicted in the following diagram showing the Nova architecture:

Figure 4.1 – The Nova component architecture

Figure 4.1 – The Nova component architecture

Let’s explore each compute component in the following section.

API

The nova-api component deals with different (HTTP-based) requests via the queuing message service. Keep in mind that the API is the first interface that accepts compute requests before forwarding them to the next Nova component and establishing a complete workflow.

Scheduler

The next station in the Nova workflow abstraction layer is the nova-scheduler component. It is a major piece of the workflow that decides in which compute node each incoming instance creation request will run.

The scheduler component uses a variety of filters and preferences that can be customized to match different...

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