1. Life Embetterment with
Hundreds of Deployments
a Week
Friday, October 11, 13

2. Life Embetterment with
Hundreds of Deployments
a Week Day
Friday, October 11, 13

3. Friday, October 11, 13

4. Friday, October 11, 13

5. Friday, October 11, 13

6. Friday, October 11, 13

7. Fall 2012
7 Developers
1 DevOps
150 M page views /
month
Friday, October 11, 13

8. Using GitHub
Friday, October 11, 13

9. Abusing GitHub
Friday, October 11, 13

10. Friday, October 11, 13

11. Tests!
Friday, October 11, 13

12. Test coverage ~30%
Friday, October 11, 13

13. Friday, October 11, 13

14. Tests run 8-12 min
Friday, October 11, 13

15. Friday, October 11, 13

16. Deploying
untested code
Friday, October 11, 13

17. Friday, October 11, 13

18. No concurrent
deployments
Friday, October 11, 13

19. Friday, October 11, 13

20. Friday, October 11, 13

21. Friday, October 11, 13

22. One Friday night...
Friday, October 11, 13

23. Friday, October 11, 13

24. Friday, October 11, 13

25. Friday, October 11, 13

26. Slow feedback
Fragile releases
Cumbersome process
Friday, October 11, 13

27. Slow feedback
Fragile releases
Cumbersome process
Friday, October 11, 13

28. statsd / graphite
Friday, October 11, 13

29. Friday, October 11, 13

30. Friday, October 11, 13

31. Friday, October 11, 13

32. Friday, October 11, 13

33. Friday, October 11, 13

34. Slow feedback
Fragile releases
Cumbersome process
Friday, October 11, 13

35. Strange
coincidence...
Friday, October 11, 13

36. When shipping
new code
Friday, October 11, 13

37. When shipping
new code always
code,
add tests
Friday, October 11, 13

38. When modifying
old code
Friday, October 11, 13

39. When modifying
old code always
code,
add tests
Friday, October 11, 13

40. Always add tests
Friday, October 11, 13

41. Eliminate random
failures
Friday, October 11, 13

42. Pull Requests
Friday, October 11, 13

43. Friday, October 11, 13

44. Friday, October 11, 13

45. Friday, October 11, 13

46. Friday, October 11, 13

47. Friday, October 11, 13

48. Friday, October 11, 13

49. Friday, October 11, 13

50. Friday, October 11, 13

51. Friday, October 11, 13

52. Friday, October 11, 13

53. Friday, October 11, 13

54. Release more often
Friday, October 11, 13

55. Git diff between
currently deployed code
and what will be
deployed:
Text
Text
https://github.com/
vinted/core/compare/
d841b93...1167740
Friday, October 11, 13

56. Text
Text
Friday, October 11, 13

57. Friday, October 11, 13

58. Friday, October 11, 13

59. Friday, October 11, 13

60. Slow feedback
Fragile releases
Cumbersome process
Friday, October 11, 13

61. Friday, October 11, 13

62. Friday, October 11, 13

63. Prepare release:
2 min 43 sec
Install gems:
42 sec
Stop jobs:
58 sec
Migrate database:
15 sec
Sync translations: 3 min 20 sec
Start jobs:
23 sec
Restart app:
24 min 12 sec
Total:
32 min 33 sec
Friday, October 11, 13

64. Friday, October 11, 13

65. Build on steroids
Friday, October 11, 13

66. Split builds
Friday, October 11, 13

67. Parallel tests
Friday, October 11, 13

68. Build on fast
hardware
Friday, October 11, 13

69. Friday, October 11, 13

70. Build on fast
hardware
Friday, October 11, 13

71. GC tuning
Ruby 2
Friday, October 11, 13

72. Use better tools
Friday, October 11, 13

73. Thin -> Unicorn
10x faster deploys
Friday, October 11, 13

74. Online database
migrations
Friday, October 11, 13

75. Friday, October 11, 13

76. Put your build
server to work
Friday, October 11, 13

77. Prepare
everything
upfront
Friday, October 11, 13

78. Deploy with
Jenkins
Friday, October 11, 13

79. Friday, October 11, 13

80. Friday, October 11, 13

81. Friday, October 11, 13

82. Auto deploy
Friday, October 11, 13

83. Instant feedback
Reliable releases
Automatic process
Friday, October 11, 13

84. Fall 2013
12 Developers
2 DevOps
500 M page views /
month
Friday, October 11, 13

85. [13:09:08] Vinc:
Inbox is not under HTTPS!
[13:25:38] Vinc:
Yes, I see HTTPS, Thanks!
Friday, October 11, 13

86. Friday, October 11, 13

87. Friday, October 11, 13

88. Mindaugas Mozūras
github.com/mmozuras
@mmozuras
Tomas Varaneckas
github.com/spajus
@spajus
Friday, October 11, 13

89. We’re hiring!
Friday, October 11, 13

90. Thank You!
Friday, October 11, 13