Chanko

This slide I present in RailsConf2012 is describes how COOKPAD safely releases
multiple feature prototypes - in production -
for test segments of their 15 million engaged users.

http://github.com/cookpad/chanko

Transcript

1. Chanko
   How COOKPAD safely releases
   multiple feature prototypes - in production -
   for test segments of their 15 million engaged users
   @mrkn (Kenta Murata), @shingo (Shingo Morita)
   http://www.flickr.com/photos/june29/3396011694/
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2. Kenta Murata
   • CRuby committer
   • bigdecimal maintainer
   • OS X platform maintainer
   • Ruby Sapporo
   @mrkn
   http://www.flickr.com/photos/recompile_net/5951998279/
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3. 3
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4. http://cookpad.com/
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5. http://cookpad.com/
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6. Data
   http://cookpad.com/
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7. Data
   Monthly unique users: 15 M
   http://cookpad.com/
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8. Data
   Monthly unique users: 15 M
   Monthly page views: 500 M
   http://cookpad.com/
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9. Data
   Monthly unique users: 15 M
   Monthly page views: 500 M
   Engineers: 40
   http://cookpad.com/
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10. Data
    Monthly unique users: 15 M
    Monthly page views: 500 M
    Engineers: 40
    System
    http://cookpad.com/
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11. Data
    Monthly unique users: 15 M
    Monthly page views: 500 M
    Engineers: 40
    System
    Ruby: Ruby Enterprise Edition
    http://cookpad.com/
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12. Data
    Monthly unique users: 15 M
    Monthly page views: 500 M
    Engineers: 40
    System
    Ruby: Ruby Enterprise Edition
    Rails: 3.0
    http://cookpad.com/
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13. Data
    Monthly unique users: 15 M
    Monthly page views: 500 M
    Engineers: 40
    System
    Ruby: Ruby Enterprise Edition
    Rails: 3.0
    Platform: AWS
    http://cookpad.com/
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14. Chanko
    http://www.flickr.com/photos/june29/3396011694/
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15. •Overview
    •Demonstration
    •Usage
    •Chanko in COOKPAD
    Topics
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16. OVERVIEW
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17. IDEA
    BUILD
    USER INTERVIEW
    USER TEST
    LEARN
    Public release
    In the office
    Before Chanko
    http://www.flickr.com/photos/13963375@N00/138745886/
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18. Persona Method
    User interview
    User test
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19. Persona Method
    User interview
    User test
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20. After Chanko
    IDEA
    BUILD
    Limited release
    IDEA
    MEASURE
    Public release
    RELEASE
    http://photozou.jp/photo/show/606813/95100763 http://photozou.jp/photo/show/276167/58451178
    BUILD
    LEARN
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21. Implement Bomb
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22. Three Requirements
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23. http://www.flickr.com/photos/ficablok38/5216979355/
    Stability
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24. http://www.flickr.com/photos/boojee/29777131/
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25. Faster Development
    http://digimaga.net/uploads/2010/02/neet-that-typing-speed-is-the-japans-fastest01.jpg
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26. Three Requirements
    Stability
    Quality
    Faster Development
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27. Chanko
    https://github.com/cookpad/chanko
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28. What can Chanko do?
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29. What can Chanko do?
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30. What can Chanko do?
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31. What can Chanko do?
    NoMethodError:
    private method `sub'
    called for nil:NilClass
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32. What can Chanko do?
    NoMethodError:
    private method `sub'
    called for nil:NilClass
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33. Generating unit
    RAILS_ROOT:$ rails generate chanko new_search_btn
    create app/units/new_search_btn/new_search_btn.
    create app/units/new_search_btn/views/_show.htm
    create app/units/new_search_btn/specs/controlle
    create app/units/new_search_btn/specs/models/ne
    create app/units/new_search_btn/specs/helpers/n
    create app/units/new_search_btn/stylesheets/new
    create app/units/new_search_btn/javascripts/new
    create app/assets/javascripts/units/new_search_
    create app/units/new_search_btn/images/logo.png
    create app/assets/images/units/new_search_btn
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34. Files and Folders
    app/units/new_search_btn/new_search_btn.rb
    /images/
    /javascripts/
    /specs/
    /stylesheets/
    /views/
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35. Files and Folders
    app/units/new_search_btn/new_search_btn.rb
    /images/
    /javascripts/
    /specs/
    /stylesheets/
    /views/
    Chanko Unit
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36. Files and Folders
    app/units/new_search_btn/new_search_btn.rb
    /images/
    /javascripts/
    /specs/
    /stylesheets/
    /views/
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37. Files and Folders
    app/units/new_search_btn/new_search_btn.rb
    /images/
    /javascripts/
    /specs/
    /stylesheets/
    /views/
    Unit Script
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38. Files and Folders
    app/units/new_search_btn/new_search_btn.rb
    /images/
    /javascripts/
    /specs/
    /stylesheets/
    /views/
    Unit Script
    Unit script consists of extensions for:
    • Models
    • Controllers
    • Helpers
    • Views
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39. Files and Folders
    app/units/new_search_btn/new_search_btn.rb
    /images/
    /javascripts/
    /specs/
    /stylesheets/
    /views/
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40. Files and Folders
    app/units/new_search_btn/new_search_btn.rb
    /images/
    /javascripts/
    /specs/
    /stylesheets/
    /views/
    Other stuff
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41. Implementing a unit
    # app/units/new_search_btn/new_search_btn.rb
    module NewSearchBtn
    include Chanko::Unit
    active_if do |context, opts|
    context.current_user.staff?
    end
    scope(:view) do
    function(:search_btn) do
    render ‘recipes/new_search’
    end
    end
    end
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42. Implementing a unit
    # app/units/new_search_btn/new_search_btn.rb
    module NewSearchBtn
    include Chanko::Unit
    active_if do |context, opts|
    context.current_user.staff?
    end
    scope(:view) do
    function(:search_btn) do
    render ‘recipes/new_search’
    end
    end
    end
    active_if do |context, opts|
    context.current_user.staff?
    end
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43. Implementing a unit
    # app/units/new_search_btn/new_search_btn.rb
    module NewSearchBtn
    include Chanko::Unit
    active_if do |context, opts|
    context.current_user.staff?
    end
    scope(:view) do
    function(:search_btn) do
    render ‘recipes/new_search’
    end
    end
    end
    scope(:view) do
    function(:search_btn) do
    render ‘recipes/new_search’
    end
    end
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44. Invoking a function
    # app/views/recipes/_header.html.haml
    = render ‘recipes/search’
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45. Invoking a function
    # app/views/recipes/_header.html.haml
    = invoke(:new_search_btn, :search_btn) do
    = render ‘recipes/search’
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46. Invoking a function
    # app/views/recipes/_header.html.haml
    = invoke(:new_search_btn, :search_btn) do
    = render ‘recipes/search’
    # app/units/new_search_btn/new_search_btn.rb
    module NewSearchBtn
    scope(:view) do
    function(:search_btn) do
    render ‘recipes/new_search’
    end
    end
    end
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47. Invoking a function
    # app/views/recipes/_header.html.haml
    = invoke(:new_search_btn, :search_btn) do
    = render ‘recipes/search’
    # app/units/new_search_btn/new_search_btn.rb
    module NewSearchBtn
    scope(:view) do
    function(:search_btn) do
    render ‘recipes/new_search’
    end
    end
    end
    NewSearchBtn
    :search_btn
    :new_search_btn :search_btn
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48. Invoking a function
    # app/views/recipes/_header.html.haml
    = invoke(:new_search_btn, :search_btn) do
    = render ‘recipes/search’
    # app/units/new_search_btn/new_search_btn.rb
    module NewSearchBtn
    scope(:view) do
    function(:search_btn) do
    render ‘recipes/new_search’
    end
    end
    end
    NewSearchBtn
    :search_btn
    :new_search_btn :search_btn
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49. Staff
    Users
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50. Live Demo
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51. Chanko Details
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52. invoke(:unit_name, :register_name)
    invoke method
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53. invoke(:unit_name, :register_name)
    invoke method
    class ApplicationController
    include Chanko::Invoker
    end
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54. invoke method
    invoke(:unit_name, :register_name) do
    # default processes
    end
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55. invoke method
    A default block is called when
    • The unit is not activated for the current user
    • Errors occur in a function
    invoke(:unit_name, :register_name) do
    # default processes
    end
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56. invoke method
    invoke([:unit_name, :function_name],
    [:unit_name2, :function_name2]) do
    # default processes
    end
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57. scope for controllers
    scope "UserController" do
    function :function_name do
    # some processes
    end
    end
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58. Model
    module ExampleChankoUnit
    include Chanko::Unit
    models do
    expand "User" do
    has_many :comments
    def blacklist!
    # code
    end
    class_methods do
    def rank
    # code
    end
    end
    end
    end
    end
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59. user.unit.comments
    user.unit.blacklist!
    User.unit.rank
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60. helper
    helpers do
    def hello_world
    'hello world'
    end
    end
    #app/chankos/unit_name/views/top/top.html.haml
    = unit.hello_world
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61. Differences from Engine
    Engine
    Chanko
    Objective
    Overwrite existing
    application
    feature
    Provide
    independent
    feature
    Standalone × O
    Reusability × O
    Stability O ×
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62. Chanko in COOKPAD
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63. PC MOBILE SmartPhone Android app
    Chanko in COOKPAD
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64. Developed in a year
    > 200
    Currently active units
    30 ~ 40
    How many units
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65. Unit manager
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66. Varnish Cache
    Rails Action Cache
    Action
    Bypass Cookie Normal
    Cache
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67. Errors
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71. Old New
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72. Chanko
    https://github.com/cookpad/chanko
    If you have any questions,
    tweet at @mrkn or @shingo.
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