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SAFe® for DevOps Practitioners

By Robert Wen
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  1. Free Chapter
    Part 1 Approach – A Look at DevOps and SAFe® through CALMR
About this book
Product development and release faces overlapping challenges due to the combined pressure of delivering high-quality products in shorter time-to-market cycles, along with maintaining proper operation and ensuring security in a complex high-tech environment. This calls for new ways of overcoming these challenges from design to development, to release, and beyond. SAFe® for DevOps Practitioners helps you use a DevOps approach with the Scaled Agile Framework and details how value streams help you resolve these challenges using examples and use cases. The book begins by explaining how the CALMR approach makes DevOps effective in resolving product development roadblocks. Next, you’ll learn to apply value stream management to establish a value stream that enables product development flow, measure its effectiveness through appropriate feedback loops, and find ways of improving it. Finally, you’ll get to grips with implementing a continuous delivery pipeline that optimizes the value stream through four phases during release on demand. This book complements the latest SAFe DevOps courses, and you’ll find it useful while studying for the SAFe DevOps Practitioner (SDP) certification. By the end of this DevOps book, you’ll have gained a clear understanding of how to achieve continuous execution and release on demand using DevOps and SAFe.
Publication date:
December 2022
Publisher
Packt
Pages
330
ISBN
9781803231426

 

Part 1 Approach – A Look at DevOps and SAFe® through CALMR

A year after the Flickr presentation at the O’Reilly Velocity conference and the initial DevOpsDays conference, John Willis and Damon Edwards tried to define the important elements of this new movement called DevOps at the 2010 DevOpsDays conference. They eventually settled on Culture, Automation, Measuring, and Sharing (CAMS).

CAMS remained the approach to DevOps until Jez Humble decided that a Lean Flow was also essential to DevOps and needed to be added to the model. CAMS then became CALMS.

Scaled Agile incorporated DevOps into the Scaled Agile Framework® in 2018. When they did this, they evaluated the current CALMS model and made a realization: sharing is an important part of culture. By establishing that the Culture was one of shared responsibility, it defined the kind of Culture needed for DevOps. It also allowed Recovery to be added to the model, which became CALMR.

In Part 1, we will examine Scaled Agile’s CALMR approach to DevOps. We will examine what characteristics form a Culture of Shared Responsibility. We will then examine the kinds of technology used for automation and who is responsible for setting them up. We will look at how a Lean Flow allows us to deploy quickly and with a high level of quality. We will then look at ensuring quality and security by continuously measuring the progress, correctness, and value of the product under development. Finally, we will look at preventing production failures and what corrective measures we can take if a production failure does occur.

This part of the book comprises the following chapters:

  • Chapter 2, Culture of Shared Responsibility
  • Chapter 3, Automation for Efficiency and Quality
  • Chapter 4, Leveraging Lean Flow to Keep the Work Moving
  • Chapter 5, Measuring the Process and Solution
  • Chapter 6, Recovering from Production Failures
About the Author
  • Robert Wen

    Robert Wen is a DevOps consultant at ReleaseTEAM. He specializes in Continuous Integration, Continuous Deployment, Value Stream Management, and Agile Development. He has over 20 years of experience in hardware and software development, working in industries such as defense, aerospace, healthcare, and telecommunications. During his career, he has been a coach as the Scrum Master for several Agile projects and a trainer for courses on the Scaled Agile Framework (SAFe). He holds the following standings and certifications: SAFe Program Consultant (SPC), Atlassian Certified Expert, Certified CloudBees Jenkins Platform Engineer, GitLab Professional Services Engineer, and Flow Framework Professional.

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