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DevOps Principles and Practices
Accelerate Flow
Murughan Palaniachari
Who am I?
Murughan Palaniachari
Heading DevOps @ Euromonitor
Website/Blog
https://elevate-org.com/
LinkedIn
https://in.linkedin.com/in/murughan
Twitter
@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/
DevOps how it started
http://itrevolution.com/the-history-of-devops/
High-performing Organization.
High-performing Organization.
https://www.edx.org/course/introduction-devops-transforming-linuxfoundationx-lfs161x
High-performing Organization.
High-performing Organization characteristics.
https://www.edx.org/course/introduction-devops-transforming-linuxfoundationx-lfs161x
Source: https://elevate-org.com/2016/12/14/top-10-devops-values/
https://www.edx.org/course/introduction-devops-transforming-linuxfoundationx-lfs161x
What is DevOps
https://www.edx.org/course/introduction-devops-transforming-linuxfoundationx-lfs161x
What is DevOps
https://www.edx.org/course/introduction-devops-transforming-linuxfoundationx-lfs161x
https://www.edx.org/course/introduction-devops-transforming-linuxfoundationx-lfs161x
https://www.edx.org/course/introduction-devops-transforming-linuxfoundationx-lfs161x
https://www.edx.org/course/introduction-devops-transforming-linuxfoundationx-lfs161x
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
http://itrevolution.com/books/phoenix-project-devops-book/
• 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