Microservices
- 1. MICROSERVICES Rouan Wilsenach @rouanw H o w t o b e g i n u s i n g
- 2. 2 “I love those little things!” Anonymous microservices fan
- 3. WHAT ?
- 4. 4 What it’s not: The monolith
- 5. 5 “Microservices are small, autonomous services that work together.” Sam Newman
- 6. WHY ?
- 7. 7 Do one thing well
- 8. 8 The right tool for the job
- 9. 9 Easier to replace “Let's face it, all we are doing is writing tomorrow's legacy software” Martin Fowler http://martinfowler.com/bliki/StranglerApplication.html
- 10. 10 Less risky to try new technologies
- 11. 11 Easier to introduce new practices
- 12. 12 Resilience
- 14. 14 Less baggage, more trips
- 15. 15 Composability
- 16. 16 Four things that get harder with size Change Learning Architecture Deployment
- 18. 1818 Very transactional business Composing core capabilities Mainframe programs Pace of change
- 19. HOW TO START?
- 21. 21 Know your limits http://martinfowler.com/bliki/MicroservicePrerequisites.html Rapid provisioning Basic Monitoring Rapid application deployment
- 22. 22 Smaller is better than big
- 23. 23 Start simple
- 24. 24 Align each service with customer value
- 26. 26 Write a well-tested, easy to use API
- 27. 27 Decoupled collaboration “be conservative in what you do, be liberal in what you accept from others” Postel’s Law http://martinfowler.com/bliki/TolerantReader.html
- 28. 28 Working software is the best contract
- 29. 29 Simple systems Refactoring between services Tricky things… Identifying boundaries Co-ordinating between teams
- 31. 31 “organizations which design systems are constrained to produce designs which are copies of the communication structures of these organisations” Conway’s Law
- 32. 32 Cultural and organisational shifts
- 35. 35 Monitoring
- 36. 36 Versioning
- 37. Q & A
- 38. @samnewman
- 39. SOME PLACES TO START Video •http://www.thoughtworks.com/insights/blog/microservices-nutshell (watch James Lewis’s video near the bottom of the page) Article •http://martinfowler.com/articles/microservices.html (keep an eye on Martin’s blog for more content on Microservices) Book •http://samnewman.io/books/building_microservices/ (Sam’s blog is also great to keep an eye on) ! 39
- 40. MICROSERVICES Rouan Wilsenach @rouanw H o w t o b e g i n u s i n g