[2019.06 Meetup] [TALK #2] Shyamala Umamaheswaran - The Art of Crafting Sustainable Products

Iterative Planning, TDD, CI/CD, Cloud Foundry, Monitoring, Error Budgets, Retrospectives and much more.

These are not just buzzwords for us. In this talk, I will share my experience of how we continue to build and operate our suite of successful live products by applying these tools and techniques @ Volkswagen Digital:Lab Berlin.

Syamala Umamaheswaran works as a software engineer at Volkswagen Digital:Lab Berlin. A Backend developer with most experience in Java/Kotlin Spring, now learning and developing in Go and Python. An avid twitter tweeter, occasional blogger with a new found interest for public speaking. She also Loves to discuss TDD, Pair Programming, OpenId connect, OAuth2. She's also an active participant in local Berlin communities like Pyladies, Women Who Go and Women Who Code.

Transcript

1. 1 Olá! I am Shyamala Software Engineer @ Volkswagen Digital:Lab Berlin
2. The Art of crafting sustainable products
3. Sustainable Let’s start with the definition
4. “Able to be maintained at certain rate or level 4
5. What makes a product Maintainable?? 5
6. 6 • Communication • Simplicity • Feedback • Respect • Courage
7. 7 The Golden Circle Product Designer (Why) Product Manager (How) Product Engineer (What)
8. 8 Balanced Teams Product Designer (Why) Product Manager (How) Product Engineer (What) Credit: Product Labs, Pivotal
9. 9 But I Am an Engineer, why do I care?
11. 11 Iterative Planning Meetings Principles • Communication • Simplicity • Courage Tools/Techniques • Pivotal tracker • Trello • Outcomes not Outputs
12. 12 Pair Programming Principles • Communication • Simplicity • Courage • Respect • Feedback Tools/Techniques • Two Displays, Keyboards, Mouse • Ping-pong pairing, Driver- Navigator...
14. 14 Test Driven Development Principles • Simplicity • Feedback • Courage Tools/Techniques • Unit Testing • Outside In • Pacts • Selenium • Puppeteer • Cypress
15. 15 Continuous Integration Principles • Feedback • Courage • Communication Tools/Techniques • Git • Concourse • Trunk based developments
16. 16 Continuous Delivery Principles • Feedback • Courage Tools • Volkswagen Web Services • AWS managed Services
18. Volkswagen Web Services • Installation of Cloud Foundry. • Support for Java, Go, Python, Node.js, R …. • Marketplace for Services ➜ ~ cf push -f manifest.yml 18
19. 19 Features or Reliability ???
20. ~ 2 Minutes Weekly ~ 53 Minutes Yearly ~ 4 Minutes Monthly 20 99.99% Availability
21. SRE Practices 21 • Reliability is a product feature • Measure what matters to the end users • Spend your Error Budgets
22. The moral of the story is .. if error_budget: print(“! Features”) elif: print(“" Reliability”) 22
23. 23 Blameless Postmortems/ Retrospectives Principles • Communication • Simplicity • Feedback • Courage • Respect Tools/Techniques • White Board • Word Document Be Humble Be Kind!!!
24. 2 Live Products From Berlin 99.9% Availability Monthly 20+ Polyglot Microservices In the platform 24
25. 25 Response Time = 34 ms Response Time = 2 ms
26. Demo Time 26
27. Obrigada! You can find me at: @shyamala_u shyamz-22 dev.to/shyamala_u 27
28. Credits Special thanks to all the people who made and released these awesome resources for free: • Presentation template by SlidesCarnival • Photographs by Unsplash • Illustrations by Undraw.co 28