DevOps principles and practices - accelerate flow

DevOps Principles and Practices Accelerate FlowMurughan Palaniachari

Who am I?Murughan PalaniachariHeading DevOps @ Euromonitor

Website/Bloghttps://elevate-org.com/

LinkedIn https://in.linkedin.com/in/murughan

Twitter@Murughan_P

http://www.euromonitor.com/

https://elevate-org.com/

https://in.linkedin.com/in/murughan



https://twitter.com/Murughan_P

https://twitter.com/Murughan_P

Must-read DevOps books

https://www.linkedin.com/pulse/must-read-books-transform-organization-murughan-palaniachari



DevOps how it started

http://itrevolution.com/the-history-of-devops/



High-performing Organization.


https://www.edx.org/course/introduction-devops-transforming-linuxfoundationx-lfs161x




High-performing Organization characteristics.




Source: https://elevate-org.com/2016/12/14/top-10-devops-values/

https://elevate-org.com/2016/12/14/top-10-devops-values/



What is DevOps




DevOps Principles and Practices - Increase the flow of work and reduce lead time• Make our work visible.• Limit work in progress.• Reduce batch sizes.• Everything in Source Control.• Automate Everything.

http://itrevolution.com/books/phoenix-project-devops-book/



Make our work visible• Our work is Invisible.• We cant see where flow

is being impeded.• We cant see when work

is piling up, where is the waste, & why wait.

• Not all the team members has up-to-date information of work.

Make our work visible


• we need to make our work as visible as possible.

• Have Visual work boards, such as kanban boards or sprint planning boards.

• we can also manage our work so that it flows from left to right as quickly as possible.

• Helps us to measure metrics – WIP, Lead time and throughput.



Limit work in progress

• Too many items in In-Progress state.

• Multitasking.• Context switching.• Interruptions

Limit work in progress(WIP) • Set WIP limit.• Unless item is

done we cant take more items.

• One piece flow from left to right.

• Queues• Buffers• Swim lanes

https://theagileist.wordpress.com/2015/06/22/the-arrow-advanced-kanban-board/



Reduce batch sizes • Waterfall type

release.• Big bang release.• Skyrocketing levels

of WIP.• Long lead time.• Poor quality• Late release• Wait

Deploy small amount quickly and Frequently

• Single-piece flow, where each operation is performed one

unit at a time.• Tiny batches needed for continuous deployment.• Use Trunk-based development.• Faster feedback• Reduce risk• Less overhead• Detect and resolve faster • Each change committed to version control is integrated,

tested, and deployed into production

Everything in Source Control

Reduce the number of handoff

• Long deployment lead time months or quarters.

• Hundreds (or even thousands) of tasks to deploy.

• Multiple departments to work on a variety of tasks.

• Too much of WAITS• Knowledge loss

Reduce the number of handoff

Automate Everything

Automate Everything

• Jez Humble says – Computers Perform Repetitive Tasks,

People Solve Problems• Code deployment should be automated, repeatable, and

predictable• Production-like environments at every stage.• Enable Continuous integration of code• Enable Continuous delivery pipelines• Treat Infrastructure as code• Environments must be created in an automated manner• Make infrastructure easier to rebuild than to repair• Environments should be stable, reliable, consistent, and secure.• Build a fast and reliable automated validation test suite

https://xebialabs.com/periodic-table-of-devops-tools/



• DevOps Culture - Communication & Collaboration, Trust, Decreasing silos, Fast Feedback loops, Systems thinking, LEAN, Automation, Measurement & Continuous Improvement

• Make our work visible.• Limit work in progress.• Reduce batch sizes.• Everything in Source Control.• Automate Everything.

Takeaways

• http://itrevolution.com/books/phoenix-project-devops-book/• https://

www.edx.org/course/introduction-devops-transforming-linuxfoundationx-lfs161x• http://itrevolution.com/devops-handbook • https://elevate-org.com

Reference/Further studies







http://itrevolution.com/devops-handbook

http://itrevolution.com/devops-handbook

https://elevate-org.com/

DevOps principles and practices - accelerate flow

Technology

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