Frequent Releases & Major Changes

At Vinted, we deploy our code hundreds of times per day into production. While offering a lot of advantages, continuous deployment also introduces its own set of challenges. Release of major changes, like big features or considerable refactorings, is one of them. How to release a sizeable improvement without stopping deploying continuously?

Transcript

1. frequent releases & major changes
2. codingfearlessly.com mmozuras mmozuras
4. VINTED
5. MAKE SECOND-HAND THE FIRST CHOICE WORLDWIDE
7. team evolution
8. everyone together BE Web BE BE
9. functional BE BE BE BE Web Web iOS And And And iOS iOS backend web mobile
10. cross-functional gem yo secret ▪pants might magic
11. cross-functional
12. people with all skills
13. people with all skills
14. people with all skills
15. backend web design iOS android analysis
16. backend web design iOS android analysis operations
17. teamwork
18. releases
19. releases in the old days by another department
21. releases today by the team
22. releases today at Vinted hundreds per day
23. releases today at Vinted hundreds per day
24. +19 -2
25. how to release major changes?
26. +2000 -42
27. how to release major changes?
28. piece by piece?
29. piece by piece?
30. long release cycles?
31. long release cycles?
32. long-lived branches?
33. long-lived branches?
34. separate release from deployment?
35. release make feature/code available for users
36. deploy put feature/code in production
37. separate release from deployment!
38. science & feature flags & ab tests
39. science
42. sphinx -> elasticsearch
43. major refactoring
44. trust the tests?
45. trust the tests?
46. run old & new code
47. run old & new code log differences
48. run old & new code log differences remove differences
49. github/scientist
52. duration matches mismatches
54. sphinx -> elasticsearch
55. feature flags
57. feature flags/toggles/switches/flippers
58. glorified if statement
62. just turn it on?
64. ab tests
68. admin svc-ab svc-1 svc-2 svc-3 data
69. admin svc-ab svc-1 svc-2 svc-3 data write ab config
70. admin svc-ab svc-1 svc-2 svc-3 data read ab config
71. admin svc-ab svc-1 svc-2 svc-3 data write events
72. admin svc-ab svc-1 svc-2 svc-3 data
73. svc-ab svc-1 svc-2 svc-3 android iOS
74. vinted/ab vinted/ab-ios vinted/ab-java
75. release a feature to a percentage
76. release a feature to half of a city
77. release to everyone
79. major changes
80. science & feature flags & ab tests
81. separate release from deployment
82. thanks! mmozuras mmozuras