What is DevOps?

Motivation

Kelly Shortridge and Nicole Forsgren, PhD convinced me of its importance during their Controlled Chaos: The Inevitable Marriage of DevOps & Security talk at Black Hat. Dino Dai Zovi emphasized this in his Black Hat keynote Every Security Team is a Software Team Now.

History

1950s
Inspired by "Lean Manufacturing" or the "Toyota Manufacturing Method."
1991
Grady Booch used the terminology Continuous Integration in the 1991 "Booch Method".
1998
Extreme programming adopted the concept of CI and advocated for merging several times per day in 1998.
2001
Manifesto for Agile Software Development was published in 2001. Written by representatives of extreme programming, scrum, etc.
2008
Andrew Schafer and Patrick Debois met in 2008 through the Agile Conference in Toronto. They created an Agile Systems Administrator group on Google.
2009
John Allspaw and Paul Hammond in 2009 gave a talk 10+ Deploys a Day: Dev and Ops Cooperation at Flickr. Software Craftsmanship Manifesto was published in 2009. Patrick Debois started DevOpsDays conference in 2009
2010
"Continuous Delivery" by Jez Humble and David Farley was published in 2010. Wikipedia entry for Continuous Delivery.
2011
Cameron Haight of Gartner in 2011 presented positive predictions for DevOps.
2012
State of DevOps report published by Alanna Brown at Puppet in 2012.
2013
The Phoenix Project written by Gene Kim, Kevin Behr, and George Spafford in 2013.
2014
State of DevOps report published by Nicole Forsgren, Gene Kim, Jez Humble and others from 2014.
2016
The DORA metrics for throughput and stability are published in the State of DevOps report in 2016. Guide to Agile Practices was published in 2011. Renamed to Agile Glossary in 2016.
2018
Nicole Forsgren, PhD, Jez Humble, and Gene Kim publish Accelerate: The Science of Lean Software and DevOps: Building and Scaling High Performing Technology Organizations.

Summary

Bridges the gap between development and IT operations that was created by lean development methodologies that rapidly deliver software.

Automation and faster releases from CI/CD contribute to DevOps. CI/CD automates the integration, delivery, and deployment stages.

Continuous deployment is a superset of continuous delivery that also automates the deployment process.

Shifting security left through software composition, SAST, DAST and IAST. Security testing is started earlier in the development lifecycle.

Site-reliability engineering contributes to continuously deploying new features while maintaining high-quality end-user experience.

DevOps Research and Assessment(DORA)

DevOps Capabilities

Technical Capabilities

Process Capabilities

Measurement Capabilities

Cultural Capabilities