This document discusses the challenges of implementing DevOps practices for legacy systems. It describes legacy systems as monolithic, static, and tightly coupled applications that need to be replaced with modern practices like microservices and cloud computing. Some challenges include refactoring nightmares, architectural constraints, misalignment of objectives among teams, and a lack of experience with new technologies. It emphasizes that the main obstacle is not the systems themselves, but "legacy thinking" - changing mindsets is crucial for a successful DevOps transformation of older infrastructure and applications.

1. Pooja Wandile
DevOps for
Legacy Systems:
A Roller Coaster
Ride

2. Pooja Wandile
Agile Practitioner, Coach, Trainer
And a trekker, sportsperson, learner
Connect with me
https://www.linkedin.com/in/pooja-wandile/
@poojawk
pooja.wandile@gmail.com
About Me

4. CI – CD
pipeline
containerization

7. The Journey
Why are we doing this?
How we will do this?
What will happen to existing setup?
They say it is good for everyone?
How we will do this?
What will happen to existing setup?

8. The Bear And Bull Moments
DevOps Program

10. • Standalone, monolithic, static,
tightly coupled apps to be replaced
by modern practices and
technologies, TDD, shift left, cloud
computing, micro services, API
• Big bang change vs. incremental
change
• Waterfall vs Agile
• Replace rotten services with
Platform/Software/Infrastructure
as a Service
• Refactoring nightmares
Systems and
Technology: Legacy
vis-à-vis Modern

11. • Standardization of
processes & Tools
• Architectural constraints
• The starting point
• Shift Left practices
• Test, infrastructure
provisioning, integration,
deployment automation
• Infrastructure,
environment constraints
Standardization &
Automation
Opportunities

12. • Misalignment of objectives
• Politics and egos
• Skill/capability/motivation
• Lack of experience and
conviction
• Old school thoughts
• Trainings
• Change of roles,
introduction of new roles
Getting People
Aspect Right

13. Remember this?

14. “There are no legacy systems; just legacy
thinking”

16. @poojawk
pooja.wandile@gmail.com
https://www.linkedin.com/in/pooja-wandile/