- Preface
- Foreword By Nathen Harvey
- Introduction
- Why this book?
- Who should read this book?
- Structure of the book
- A word about the DevOps cycle...
- Chapter 1: What's in a name?
- What I think DevOps is about...
- It all starts with the "why?"
- The CALMS acronym explains it all
- So, what about the bullshit in this chapter?
- DevOps? That's all about automation
- DevOps is about delivering faster
- Should we implement DevSecOps or SecDevOps?
- Hey, let's do some automated DevTestOps!
- BizDevSecTestData...Ops
- Takeaways of this chapter
- What I think DevOps is about...
- Chapter 2: People and responsibilities
- Culture - that's all about people
- So where’s the bullshit in this chapter?
- Agile is for Dev teams, DevOps is for Ops teams
- DevOps? Put Dev and Ops people together on a team
- DevOps? That will make my job as a Systems Engineer obsolete.
- We throw some Ops responsibilities to Dev: voila, they are DevOps teams now
- DevOps? We don’t have time to learn about our operational platform
- Do you think I am going to watch monitoring dashboards?
- T-shaped profiles? We need at least Pi-shaped profiles
- Takeaways of this chapter
- Culture - that's all about people
- Chapter 3: Technologies
- Technologies - the means to implement automation
- The bullshit in this chapter talks about...
- We have a CI/CD pipeline: we are a DevOps team
- DevOps? That only works for cloud applications
- We run on mainframe. We can't do DevOps!
- We “automated” our self-service request
- Feature toggles solve all our release problems
- Key takeaways of this chapter
- Technologies - the means to implement automation
- Chapter 4: Security first
- Mentality shift regarding security
- The thing about DevSecOps and SecDevOps
- The bullshit in this chapter goes to…
- We disabled the security scans: they slowed down our build
- We ignore the security scans because of too many false positives
- Takeaways of this chapter
- Mentality shift regarding security
- Chapter 5: Deploy and release
- The difference between installation and activation
- So what bullshit am I talking about in this chapter?
- We cannot separate deploy from release
- We can’t go to production before our dependencies are ready
- Build is broken for 3 weeks. No worries. It’s only Dev
- We only build right before we go to production
- With such a high release frequency, we cannot test everything
- When a release goes wrong, we cannot avoid customer impact
- We cannot deploy without downtime
- Key takeaways of this chapter
- The difference between installation and activation
- Chapter 6: Measuring is knowing
- DORA metrics as reference point
- And how can these metrics be bullshit…?
- Releasing every 3 months is frequently enough
- We only do calendar based releases. We can’t do DevOps
- Since we do frequent deployments, our change fail rate has skyrocketed
- We cannot reduce our mean time to recover: segregation of duties
- Key takeaways of this chapter
- DORA metrics as reference point
- Conclusion
- A word about the cards
- What preceded...
- Time for something new
- How can you use these cards?
- More info
- My other projects
- Scrumban simulation
- Build-Run-Improve-Repeat
- CI-CD-QA
- Other serious games
- Slicing the Cake
- The Must Have Game
- The Ultimate Retrospective cards
- Agile Principles cards
- Acknowledgements
- List of abbreviations
- References
- References of the introduction
- Reference in Nathen Harvey's foreword
- References of chapter 1
- References of chapter 2
- References of chapter 3
- References of chapter 4
- References of chapter 5
- References of chapter 6
- References of A word about the Cards
Debunking DevOps Delusions
Save yourself from a DevOOPS! experience
There are already a lot of books about DevOps: novels, like The Phoenix Project, reference books, like The DevOps Handbook and very specific technical book on how to implement DevOps.
If you are looking for ready to use solutions, like in a cook book, to transform your organization to a DevOps organization, you may be disappointed: this book doesn't pretend to have all the answers; above all, it provides a lot of questions.
Then why should you read this book?
To save yourself from a DevOOPS! experience.
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About
About the Book
When it comes to DevOps, you often hear or read some misconceptions, delusions if you like. For example:
DevOps is about delivering faster.
Sounds familiar? This book covers 30 of such delusions.
Divided over 6 chapters, you will get food for thought about different aspects of DevOps, including people, technologies, security, release and deploy. With a sense of humor, this book also helps you discover things that will not bring you closer to a DevOps organization.
If you are looking for ready to use solutions, like in a cook book, to transform your organization to a DevOps organization, you may be disappointed. This book doesn't pretend to have all the answers; above all, it provides a lot of questions.
Then why should you read this book?
To save yourself from a DevOOPS! experience.
This book is based on a series of LinkedIn posts that I wrote about DevOps Bull$#!t, between July 2024 and February 2025.
Author
About the Author
Koen Vastmans
I have a background of software design and development and agile training and coaching. I have always been keen on sharing knowledge, but with a twist. That's why I started developing serious games, to teach people certain aspects and techniques of agile and DevOps. Writing about these topics felt like a logical next step.
After co-authoring a book called Agile Bullshit, I challenged myself to write my own book.
Contents
Table of Contents
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