Gateway - How to bring down our monolith

Transcript

1. Benjamin De Bernardi Gateway How to bring down our monolith

2. Benjamin De Bernardi Web Developer @Genes0r

3. The infamous V3

4. Front Admin API Workers Monolithic application

5. It’s huge

6. 406 187 NLOC There are “only” 268 041 NLOC for

   symfony/symfony

7. 29 582 Commits There are “only” 15 506 commits for

   symfony/symfony There are “only” 10 228 commits for joyent/node There are “only” 9 266 commits for twbs/bootstrap There are 44 809 commits for rails/rails (but it’s ruby… #troll)

8. ~ 75 contributors There are 1 193 contributors for symfony/symfony

9. ~ 30 minutes to run all the unit tests

10. What else ? • Long learning curve • Too many

    side effects • Time consuming • Big maintenance • Spaghetti code

11. Now & the future

12. countries NEW IN 2015 India Mexico Hungary Romania Serbia Croatia

    19

13. Exponential growth 20 million members in April 2015

14. BlaBlaCar is deploying multiple datacenters

15. We need to localize our data

16. MICRO-SERVICES

17. Micro-services Users, ratings, notifications, ridemap...

18. Overview

19. Overview

20. NO API!

21. The gateway

22. • It’s code. • It uses DDD. • Everyone love

    it! • It’s very well organized. • There’s a lot of (very) strict rules. • It separates business logic & data access. • It’s a vendor! It’s easy to use everywhere!

23. How to: Get a rating

24. Business

25. None

26. Request

27. Usage

28. Usage

29. Usage

30. Handler

31. Data

32. • Cache ready • backend agnostic

33. • Cache ready • Backend agnostic Encapsulation !

34. D BALStorage

35. RedisStorage

36. Gateway • Flexible • Very strict • Easy to test

    • Deployed when needed • Used for all new projects

37. V3 Previous ecosystem

38. Gateway V3 W W W W W C W C

    C C W Current ecosystem W • 90 workers • 40 commands

39. V3 W W W W W C W C C

    C W Future ecosystem? W Gateway Gateway Gateway

40. V3 W W W W W C W C C

    C W Future ecosystem? W B B B B B B D D D

41. Micro services are not a silver bullet, they won’t solve

    all your problems. We are still working on our gateway stuff :)

42. Thank you Bisous Buziaczki