My invited talk at KLA-Tencor's Software and Apps Engineering Conference NEOTERIX 2016 at Chennai, Aug 25

1. Demystifying DevOps
Tathagat Varma
Knowledgepreneur
http://thoughtleadership.in

2. The journey so far…Developersbuilt
andranthe
systems
Developers
built the
systems
Operators
ran the
systems
Developers built the
systems
Testers tested the
systems
Sys Admin managed
the systems
Operators ran the
systems
???

3. We “created” silos...
Developers Testers Operations
Code Software Service

4. Agile. Circa 2001.
http://www.agilenutshell.com/agile_vs_waterfall

5. Key changes…
• From top-down predictive planning => team-driven
adaptive planning
• From documentation-driven sequential phases =>
working software each iteration
• From episodic delivery of all features => incremental
delivery of highest-value features
• Dev + Test => One team / agile developers
– Old Dev + Test capabilities => New Dev
– Old Test + Dev capabilities => New Test

6. But some silos continued…
Agile Developers Operations

7. …and the problems ensued!
Deployment was still a major risk
When deployed, software would invariably underperform
Changes were episodic, and way too risky
When problems were found, “Us Vs They” blame game
Time/cost to find issues was huge, to fix is even more
…

8. The Wall of Confusion: One Company,
Two Mindsets…
http://dev2ops.org/wp-content/uploads/2010/02/WallOfConfusion.png

9. So, what is Devops?
The term was coined by Patrick Debois in 2009. He wanted to extend Agile principles into
sys admin and ops.
Enable collaboration between all teams involved in building, shipping and managing a
feature
Developers don’t just focus on functionality. Performance and Reliability are just as
important.
Operations don’t get involved only towards the end, but throughout the development
lifecycle.
Tools might help, especially for large deployment, but culture comes tops.

10. From Agile to DevOps
http://www.collab.net/solutions/devops
http://www.collab.net/solutions/devops

11. DevOps Principles
Develop and test against production-like systems
Deploy with repeatable, reliable processes
Monitor and validate operational quality
Amplify feedback loops
DevOps for Dummies – Sanjeev Sharma

12. DevOps cycle
Pic source: CollabNet

13. Why DevOps?

14. Shift Left
DevOps for Dummies – Sanjeev Sharma

15. How DevOps?
http://www.ca.com/us/lpg/ca-technology-exchange/what-smart-businesses-have-gained.aspx

16. Success Factors
http://www.ca.com/us/lpg/ca-technology-exchange/what-smart-businesses-have-gained.aspx

17. Challenges…
http://www.ca.com/us/lpg/ca-technology-exchange/what-smart-businesses-have-gained.aspx

18. Benefits
http://www.ca.com/us/lpg/ca-technology-exchange/what-smart-businesses-have-gained.aspx

19. 2016 State of DevOps Report

20. So, what really is DevOps?
Process?
Method?
Tool?
???

22. The key is…
Mindset
Culture
Process
Methods
Tools
The crux!!!