Mover seus projetos pra "cloud" não é só copiar e colar o código das suas aplicações numa máquina na Amazon EC2. Isso além de não escalar é uma estupidez. Na comunidade Rails, para aplicações pequenas e médias (e até algumas grandes) isso já é um problema "resolvido", no sentido de que estamos consciente do processo e práticas envolvidas em criar um aplicação escalável. O Heroku resumiu as principais no 12factor.net. E a realidade é que a indústria de TI como um todo ainda ignora tudo isso. Esta palestra não é para mostrar o futuro, mas sim para mostrar o passado: como nós já usamos isso rotineiramente sem nem pensar mais a respeito enquanto a maioria está 5 anos atrasado em relação a nós.

1. Agilidade + Cloud
Ciclo de Trabalho para Aplicações Escaláveis

23. THE FOLLOWING HAS BEEN APPROVED FOR
HORROR-MINDED AUDIENCES
EXPLICIT LANGUAGE, GRAPHIC VIOLENCE,
GORE, SUFFERING, (BUT NO NUDITY)

24. The Twelve-Factor App
http://12factor.net/

29. Codebase in GIT Build, release, run Disposability
Explicit and Isolated
Dependencies
Stateless
Processes
Dev/prod
Parity
Config in ENV Port Binding Log Streams
Backing Services as
Attached Resources
Scale-Out
Concurrency
One-off Admin
Processes

30. Codebase in GIT Build, release, run Disposability
Explicit and Isolated
Dependencies
Stateless
Processes
Dev/prod
Parity
Config in ENV Port Binding Log Streams
Backing Services as
Attached Resources
Scale-Out
Concurrency
One-off Admin
Processes

32. Codebase Deploys
production
staging
developer 1
developer 2

33. Codebase in GIT Build, release, run Disposability
Explicit and Isolated
Dependencies
Stateless
Processes
Dev/prod
Parity
Config in ENV Port Binding Log Streams
Backing Services as
Attached Resources
Scale-Out
Concurrency
One-off Admin
Processes

38. Codebase in GIT Build, release, run Disposability
Explicit and Isolated
Dependencies
Stateless
Processes
Dev/prod
Parity
Config in ENV Port Binding Log Streams
Backing Services as
Attached Resources
Scale-Out
Concurrency
One-off Admin
Processes

41. Codebase in GIT Build, release, run Disposability
Explicit and Isolated
Dependencies
Stateless
Processes
Dev/prod
Parity
Config in ENV Port Binding Log Streams
Backing Services as
Attached Resources
Scale-Out
Concurrency
One-off Admin
Processes

42. Attached Resources
Production!
Deploy
Postgresql
Twitter
postgres://auth@host/db
Sendgrid AWS S3
smtp://auth@host
postgres://auth@api.twitter.com
postgres://auth@s3.amazonaws.com/bucket

43. Codebase in GIT Build, release, run Disposability
Explicit and Isolated
Dependencies
Stateless
Processes
Dev/prod
Parity
Config in ENV Port Binding Log Streams
Backing Services as
Attached Resources
Scale-Out
Concurrency
One-off Admin
Processes

44. Codebase
Release
Build
Config!
{}

46. git push heroku master

47. Codebase in GIT Build, release, run Disposability
Explicit and Isolated
Dependencies
Stateless
Processes
Dev/prod
Parity
Config in ENV Port Binding Log Streams
Backing Services as
Attached Resources
Scale-Out
Concurrency
One-off Admin
Processes

48. Application!
(Box 1)
User Browser
Application!
(Box 2)
Application!
(Box 3)
AWS S3 Memcachier

49. Application!
(Box 1)
User Browser
Application!
(Box 2)
Application!
(Box 3)
AWS S3 Memcachier

50. Application!
(Box 1)
User Browser
Application!
(Box 2)
Application!
(Box 3)
AWS S3 Memcachier

51. Application!
(Box 1)
User Browser
Application!
(Box 2)
Application!
(Box 3)
AWS S3 Memcachier

52. Application!
(Box 1)
User Browser
Application!
(Box 2)
Application!
(Box 3)
AWS S3 Memcachier

53. Application!
(Box 1)
User Browser
Application!
(Box 2)
Application!
(Box 3)
AWS S3 Memcachier

56. Codebase in GIT Build, release, run Disposability
Explicit and Isolated
Dependencies
Stateless
Processes
Dev/prod
Parity
Config in ENV Port Binding Log Streams
Backing Services as
Attached Resources
Scale-Out
Concurrency
One-off Admin
Processes

57. Codebase in GIT Build, release, run Disposability
Explicit and Isolated
Dependencies
Stateless
Processes
Dev/prod
Parity
Config in ENV Port Binding Log Streams
Backing Services as
Attached Resources
Scale-Out
Concurrency
One-off Admin
Processes

58. web.1 worker.1 scheduler.1
Workload Diversity (process types)
Scale (running processes)

59. web.1 worker.1 scheduler.1
Workload Diversity (process types)
Scale (running processes)
web.2

60. web.1 worker.1 scheduler.1
Workload Diversity (process types)
Scale (running processes)
web.2 worker.2

61. worker.4
worker.3
web.1 worker.1 scheduler.1
Workload Diversity (process types)
Scale (running processes)
web.2 worker.2

63. Codebase in GIT Build, release, run Disposability
Explicit and Isolated
Dependencies
Stateless
Processes
Dev/prod
Parity
Config in ENV Port Binding Log Streams
Backing Services as
Attached Resources
Scale-Out
Concurrency
One-off Admin
Processes

64. worker.4
worker.3
web.1 worker.1 scheduler.1
Workload Diversity (process types)
Scale (running processes)
web.2 worker.2

65. worker.1 scheduler.1
Workload Diversity (process types)
Scale (running processes)
web.2
worker.4
web.3

68. Codebase in GIT Build, release, run Disposability
Explicit and Isolated
Dependencies
Stateless
Processes
Dev/prod
Parity
Config in ENV Port Binding Log Streams
Backing Services as
Attached Resources
Scale-Out
Concurrency
One-off Admin
Processes

73. Codebase in GIT Build, release, run Disposability
Explicit and Isolated
Dependencies
Stateless
Processes
Dev/prod
Parity
Config in ENV Port Binding Log Streams
Backing Services as
Attached Resources
Scale-Out
Concurrency
One-off Admin
Processes

78. Codebase in GIT Build, release, run Disposability
Explicit and Isolated
Dependencies
Stateless
Processes
Dev/prod
Parity
Config in ENV Port Binding Log Streams
Backing Services as
Attached Resources
Scale-Out
Concurrency
One-off Admin
Processes

81. worker.4
worker.3
web.3
web.1 worker.1
Workload Diversity (process types)
Scale (running processes)
web.2 worker.2

82. worker.4
worker.3
web.3
web.1 worker.1 console.6893
Workload Diversity (process types)
Scale (running processes)
web.2 worker.2

83. worker.4
worker.3
web.3
web.1 worker.1
Workload Diversity (process types)
Scale (running processes)
web.2 worker.2

88. 3 anos (set/11 - jul/13)

89. 3 anos (set/11 - jul/13)
72 repos (97 total)

90. 3 anos (set/11 - jul/13)
72 repos (97 total)
432k LOC (157k LOC Ruby)

91. 3 anos (set/11 - jul/13)
72 repos (97 total)
432k LOC (157k LOC Ruby)
+60 apps Heroku

102. OBRIGADO!
slideshare.net/akitaonrails
@akitaonrails