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DevOps Culture and Practice with OpenShift

You're reading from   DevOps Culture and Practice with OpenShift Deliver continuous business value through people, processes, and technology

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Product type Paperback
Published in Aug 2021
Publisher Packt
ISBN-13 9781800202368
Length 812 pages
Edition 1st Edition
Concepts
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Authors (5):
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Noel O’Connor Noel O’Connor
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Noel O’Connor
Mike Hepburn Mike Hepburn
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Mike Hepburn
Ilaria Doria Ilaria Doria
Author Profile Icon Ilaria Doria
Ilaria Doria
Donal Spring Donal Spring
Author Profile Icon Donal Spring
Donal Spring
Tim Beattie Tim Beattie
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Tim Beattie
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Toc

Table of Contents (30) Chapters Close

Preface Acknowledgements Section 1: Practices Make Perfect FREE CHAPTER
1. Introduction — Start with Why 2. Introducing DevOps and Some Tools 3. The Journey Ahead Section 2: Establishing the Foundation
4. Open Culture 5. Open Environment and Open Leadership 6. Open Technical Practices – Beginnings, Starting Right 7. Open Technical Practices — The Midpoint Section 3: Discover It
8. Discovering the Why and Who 9. Discovering the How 10. Setting Outcomes Section 4: Prioritize It
11. The Options Pivot Section 5: Deliver It
12. Doing Delivery 13. Measure and Learn Section 6: Build It, Run It, Own It
14. Build It 15. Run It 16. Own It Section 7: Improve It, Sustain It
17. Improve It 18. Sustain It Index
Appendix A – OpenShift Sizing Requirements for Exercises 1. Appendix B – Additional Learning Resources

Emerging Architecture

Hope is not a design method.6

How do we know our architecture is good? What does good mean? Is good architecture measurable? Have you ever had to operate, support, or fix a system that is poorly architected?

It may be easier to identify some characteristics of what a poor architecture looks like:

  • An unstable and unreliable system that fails regularly in unknown and unexpected ways.
  • The system is slow from a user's point of view.
  • It does not scale well with increased users or loads.
  • It is hard to upgrade because one small change requires everything to be re-deployed, which is slow and costly.
  • It is dependent on clients or other systems and cannot be easily modified or changed without changing the other systems as well.
  • It has a lot of complex business functions that are buried in the database, that may involve triggers, and cannot be easily changed due to a complex database schema with unknown side effects when modified...
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