Microservices at Gilt.com - Sydney - March 2016

Sydney JVM meetup
March 2, 2016
Australia

Transcript

1. Microservices Sean Sullivan March 2016 Sydney
2. • gilt.com • microservices • libraries and tools • additional resources
3. Gilt is an online retailer
4. acquired by HBC in February 2016
5. www.gilt.com
6. www.gilt.com
7. https://www.gilt.com/checkout
8. Internal applications • Purchase order management • Sale management • Inventory management • Discount management • Order management • Customer service
9. Gilt technology stack
11. Technical architecture
12. 2007 monolithic app 2016 microservices
15. Example services • checkout • discount • shopping cart • inventory • loyalty program • return policy • product recommendation • shipment tracker • user service • user notification • international • credit card vault
16. Gilt services • encapsulate business logic and persistence logic • run on Java VM • HTTP and JSON • single frontend request triggers multiple backend requests
17. hundreds of services + handcrafted client libraries
18. Dependency hell
19. “dependency hell may be mitigated by making API design ‘first class’, ensuring backward and forward compatibility, providing accurate documentation, and generating client libraries http://www.infoq.com/news/2015/06/taming-dependency-hell
20. Schema first development • API’s are a first class artifact • Gilt’s ApiDoc framework (open source)
21. http://www.apidoc.me/
22. ApiDoc descriptor
25. https://github.com/mbryzek/apidoc
26. Deployment
27. Gilt deployment tools • Ion Cannon • Ion Roller
28. Ion Cannon
29. Ion Roller • gradual rollout of new software versions • safe rollback to previous versions of software/configuration • detection of anomalies through error rate and latency monitoring • understanding of what software serves an endpoint • information about changes in software/ configuration over time
30. open source projects
31. https://github.com/gilt/ionroller
32. https://github.com/gilt/sbt-codedeploy
33. http://docs.cavellc.io/en/latest/
34. https://github.com/gilt/gfc-guava
35. https://github.com/mbryzek/schema-evolution-manager
36. Additional resources
37. http://www.infoq.com/presentations/scaling-gilt
38. http://www.infoq.com/news/2015/06/taming-dependency-hell
39. https://www.youtube.com/watch?v=-czp0Y4Z36Y
40. https://www.youtube.com/watch?v=-czp0Y4Z36Y
41. • https://github.com/mbryzek/apidoc • https://github.com/swagger-api • https://developers.google.com/protocol-buffers/ • https://thrift.apache.org/ • https://github.com/datawire/quark
42. The end