Agile in a World of micro services

Microservices are great - but if you are not careful you have just created a new set of silos. And response time is through the floor because a new service you have never heard of is hammering your app.The right tooling helps - but communication is even more important. This talk will discuss how to build the kind of culture you need to make micro services work.

Transcript

1. Agile in a world of micro services How to have disparate apps in different languages with different datastores without going crazy
2. About me • Lisa van Gelder • VP of Engineering at Stride • lisa@stridenyc.com • @techbint
3. The Monolith
4. How to tell when you have monolith pains • You have a release manager • It takes days/weeks to get a release ready • You don’t know which team just broke the site in production • Refactoring is hard because you break everyone else’s changes
5. You can’t move fast.
6. What is a micro service? • A bounded context - something with clear defined responsibilities • Deployed and hosted separately • With clear data ownership
7. The good!
9. Scaling!
11. Empowered teams!
12. The bad
15. Releases
16. Versioning
17. Testing
19. Who owns cross-team functionality?
20. Shared common code?
21. Re-inventing the wheel
22. The surprise service causing issues
23. How to make it work
24. Shared ownership
25. Cross-team goals
26. Scrum of Scrums!
29. Timeouts
30. Service discoverability - with clear owners
32. Fake transactions in production
33. SLOs & priorities what happens when service goes down at 3 in the morning?
34. Shared understanding on what happens when something goes wrong • error codes • circuit breakers • kill switch • game days or the Simian Army
35. Mean time to repair
36. Common interfaces: deployment, healthchecks, logging, monitoring
37. Trace a user’s journey through the system by shared identifier
38. Collect logs into a standard searchable system
39. Dashboards! make it easy for teams to make their own and track their own metrics
40. Standardize common metric names
41. Publish the state of your circuit breakers
42. In conclusion: Shared ownership!
43. Questions? Read this book! Building Microservices by Sam Newman @techbint
44. Image credits • http://wall.alphacoders.com/big.php?i=121812 • http://eadesign-designisfun.deviantart.com/art/High- speed-city-167609421 • https://www.flickr.com/photos/woolner/4943166258/ • http://pixabay.com/en/brewery-tychy-vats-vat-silo-377019/ • http://en.wikipedia.org/wiki/Coral_reef • http://commons.wikimedia.org/wiki/ File:ShadowRidgeRoadFire.JPG • http://en.wikipedia.org/?title=User:Enricoslasheric/ pools_test • https://www.flickr.com/photos/leafbug/409950515/ • http://pixabay.com/en/photos/jigsaw%20puzzle/