Stress-free software releases

Transcript

1. Stress-free software releases BGPHP 2019, Sofia
2. @TsTrv CTO Adeva - An Exclusive Developers Network Fully-distributed network Worked with startups and Fortune 500 companies
3. @TsTrv Building strong engineering processes
4. @TsTrv Nirvana in software engineering
5. @TsTrv State of the application ー Legacy, enterprise application built in PHP ー Being developed for over 10 years ー 0% test coverage ー 10 engineers - to keep it alive
6. @TsTrv The problems ー Unable to ship as fast as we needed ー Never ending bug fixing cycles ー Full-regression testing took 3-4 weeks ー Releases once monthly ー Scheduled on weekends
7. @TsTrv Formula for stress and burnout
8. @TsTrv Continuous Everything
9. @TsTrv
10. @TsTrv Objections ー Complexity ー Risk ー Control ー Habit
11. @TsTrv Continuous Everything
12. @TsTrv Continuous Everything… Nirvana
13. @TsTrv Continuous Everything… Nirvana
14. @TsTrv Continuous Everything… Nirvana
15. @TsTrv Continuous Everything ー If you fail, you fail small ー If something breaks, you know to fix immediately ー Fewer bugs ー Release new features faster ー Reduce Costs
16. @TsTrv What could potentially go wrong?
17. @TsTrv What could potentially go wrong right?
18. @TsTrv Legacy code ー Strangler Pattern ー Branch By Abstraction Technique
19. @TsTrv Strangler Pattern
20. @TsTrv Branch By Abstraction
21. @TsTrv Automated Tests
22. @TsTrv Automated tests ー Assume legacy works flawlessly ?! ー Utilize new modules to Increase the code coverage
23. @TsTrv Pipeline
24. @TsTrv Deployment vs Release ー Decoupling ー Feature Toggles – Dark Launching – Phased rollout
25. @TsTrv
26. @TsTrv Deployment Strategy ー Blue Green ー Canary deployment
27. @TsTrv Blue Green Deployment
28. @TsTrv Blue Green Deployment
29. @TsTrv Canary Deployment
30. @TsTrv Mindset ー Everyone should participate ー Not a DevOps work only ー Continuous improvement, day by day
31. @TsTrv Actions ー Wrapped up the legacy code ー Faked automated tests for the legacy ー Identified pipeline ー Decoupled releases from deployment ー Created a culture of continuous improvement
32. @TsTrv Wins ー Release code to production multiple times daily. ー Production bugs lowered by 80% ー From bug report to deploy < 30 mins ー No more weekends work
33. @TsTrv Always strive for continuous improvement, instead of perfection.
34. @TsTrv Thank you