How Heroku Uses Heroku To Build Heroku

Transcript

1. How Heroku uses
   Heroku to build
   Heroku
   

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2. Craig Kerstiens
   @craigkerstiens
   

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3. WHAT
   IS
   HEROKU
   

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4. WHAT
   IS
   HEROKU
   a Platform as a Service
   

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5. WHAT
   IS
   HEROKU
   a Platform as a Service
   developer productivity
   

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7. 4000 heroku apps
   

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8. 4000 heroku apps
   500+ releases a day
   

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9. 4000 heroku apps
   500+ releases a day
   200+ deploys a day
   

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10. 4000 heroku apps
    500+ releases a day
    200+ deploys a day
    105 public github repos
    

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11. 4000 heroku apps
    500+ releases a day
    200+ deploys a day
    105 public github repos
    85 people
    

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12. 4000 heroku apps
    500+ releases a day
    200+ deploys a day
    105 public github repos
    85 people
    21 teams
    

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13. WHAT
    IS
    HEROKU
    a Platform as a Service
    developer productivity
    

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14. WHAT
    IS
    HEROKU
    a Platform as a Service
    developer productivity
    a cloud unix
    

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15. UNIX
    

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16. UNIX
    small sharp tools
    

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17. alias
    awk
    cat
    cd
    clear
    cp
    curl
    date
    diff
    du
    tail
    talk
    touch
    true
    unalias
    vi
    wc
    who
    wget
    grep
    head
    id
    make
    mv
    patch
    rm
    rmdir
    sleep
    sort
    

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18. alias
    awk
    cat
    cd
    clear
    cp
    curl
    date
    diff
    du
    tail
    talk
    touch
    true
    unalias
    vi
    wc
    who
    wget
    grep
    head
    id
    make
    mv
    patch
    rm
    rmdir
    sleep
    sort
    

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19. alias
    awk
    cat
    cd
    clear
    cp
    curl
    date
    diff
    du
    tail
    talk
    touch
    true
    unalias
    vi
    wc
    who
    wget
    grep
    head
    id
    make
    mv
    patch
    rm
    rmdir
    sleep
    sort
    

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20. Heroku as UNIX
    for developers
    

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21. Do 1 thing do it well
    Heroku as UNIX
    for developers
    

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22. Do 1 thing do it well
    Straightforward Setup
    Heroku as UNIX
    for developers
    

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23. Do 1 thing do it well
    Straightforward Setup
    Lower barrier to entry
    Heroku as UNIX
    for developers
    

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24. Do 1 thing do it well
    Straightforward Setup
    Lower barrier to entry
    

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25. Small functional apps
    Do 1 thing do it well
    Straightforward Setup
    Lower barrier to entry
    

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26. Small functional apps
    An example (KISSMetrics Data Loader):
    Do 1 thing do it well
    Straightforward Setup
    Lower barrier to entry
    

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27. Small functional apps
    An example (KISSMetrics Data Loader):
    Open DB connection
    Do 1 thing do it well
    Straightforward Setup
    Lower barrier to entry
    

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28. Small functional apps
    An example (KISSMetrics Data Loader):
    Open DB connection
    Run query
    Do 1 thing do it well
    Straightforward Setup
    Lower barrier to entry
    

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29. Small functional apps
    An example (KISSMetrics Data Loader):
    Open DB connection
    Run query
    Post data
    Do 1 thing do it well
    Straightforward Setup
    Lower barrier to entry
    

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30. Small functional apps
    An example (KISSMetrics Data Loader):
    Open DB connection
    Run query
    Post data
    Others: OAuth, Vault, API, Core, Canary,
    Add-ons, Success, etc.
    Do 1 thing do it well
    Straightforward Setup
    Lower barrier to entry
    

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32. Run and forget
    

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33. Run and forget
    Alert me when things break
    

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34. Do 1 thing do it well
    Straightforward Setup
    Lower barrier to entry
    

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35. git clone git://github.com/heroku/...
    heroku create -s cedar
    git push heroku master
    Do 1 thing do it well
    Straightforward Setup
    Lower barrier to entry
    

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36. Heroku as UNIX
    for developers
    Do 1 thing do it well
    Straightforward Setup
    Lower barrier to entry
    

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37. 4000 heroku apps
    500+ releases a day
    200+ deploys a day
    

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38. Release Early
    Release Often
    

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39. Defined Contract/API
    Release Early
    Release Often
    

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40. Defined Contract/API
    Developer environments
    Release Early
    Release Often
    

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41. Defined Contract/API
    Developer environments
    Environment parity
    Release Early
    Release Often
    

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42. Defined Contract/API
    Developer environments
    Environment parity
    

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43. Defined Contract/API
    Developer environments
    Environment parity
    

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44. heroku create -s cedar mystaging-app
    git remote add staging git@github.com:heroku/...
    git push staging master
    git push production master
    Defined Contract/API
    Developer environments
    Environment parity
    

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45. production = staging = dev
    minimized divergence enables continuous deployment
    Defined Contract/API
    Developer environments
    Environment parity
    

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46. settings/
    local_settings.py
    dev_settings.py
    staging_settings.py
    production_settings.py
    Defined Contract/API
    Developer environments
    Environment parity
    

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47. settings/
    local_settings.py
    dev_settings.py
    staging_settings.py
    production_settings.py
    Defined Contract/API
    Developer environments
    Environment parity
    

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48. settings.py
    DATABASE = os.environ[‘DATABASE_URL’]
    Defined Contract/API
    Developer environments
    Environment parity
    SENTRY_DSN = os.environ[‘SENTRY_DSN’]
    REDIS = os.environ[‘REDIS_URL’]
    

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49. 4000 heroku apps
    500+ releases a day
    200+ deploys a day
    105 public github repos
    

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50. More than a codebase
    

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51. 4000 heroku apps
    500+ releases a day
    200+ deploys a day
    105 public github repos
    85 people
    21 teams
    

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52. 21 teams
    Web Apps - 2 people
    Runtime - 3 people
    API - 3 people
    Routing - 3 people
    Security - 3 People
    Developer Experience - 5 people
    Data - 9 people
    

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53. 21 teams - almost as many tools
    

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54. 21 teams - almost as many tools
    

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55. 21 teams - almost as many tools
    

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56. 21 teams - almost as many tools
    

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57. 21 teams - almost as many tools
    

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58. 21 teams - almost as many tools
    

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59. 21 teams - almost as many tools
    

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60. 21 teams - almost as many tools
    

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61. 21 teams - almost as many tools
    

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62. 21 teams - almost as many tools
    

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63. 21 teams - almost as many tools
    Web Apps - Github Issues, Basecamp, Campfire
    Runtime - Github Issues, Trello, Campfire
    API - Github Issues, Campfire, Github Repo
    Routing - Pivotal Tracker, Github Issues, Campfire
    DX - Github, Grove.io
    Data - Campfire, Github Issues, Trello
    

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64. 21 teams - almost as many tools
    Web Apps - Github Issues, Basecamp, Campfire
    Runtime - Github Issues, Trello, Campfire
    API - Github Issues, Campfire, Github Repo
    Routing - Pivotal Tracker, Github Issues, Campfire
    DX - Github, Grove.io
    Data - Campfire, Github Issues, Trello
    

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65. ownership
    productivity
    agility
    Team Design
    

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66. ownership
    productivity
    agility
    You choose the tools to get the
    job done, you support the API for
    others, you own the features to
    make users happier, you ensure
    it works, you carry the pager
    

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67. ownership
    productivity
    agility
    Broad focus around quality,
    quality comes from solid
    engineering, give time to
    engineers, less meetings more
    get shit done
    

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68. ownership
    productivity
    agility
    Iterate fast and often, a failed
    attempt is a successful
    experiment, culture around
    seeing/doing over talking
    

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69. ownership
    productivity
    agility
    “When can I see it”
    

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70. ownership
    productivity
    agility
    Iterate fast and often, a failed
    attempt is a successful
    experiment, culture around
    seeing/doing over talking
    

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71. Teams don’t communicate the same way
    

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72. More than a codebase
    

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73. Github issues is
    

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74. Github issues is centralized
    

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75. Github issues is centralized, is
    asynchronous,
    

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76. Github issues is centralized, is
    asynchronous, hands off ownership
    

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77. Github issues alone
    doesn’t fix communication
    Engineering culture of building and sharing
    

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78. Github issues alone
    doesn’t fix communication
    Engineering culture of building and sharing
    

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79. 4000 heroku apps
    500+ releases a day
    200+ deploys a day
    105 public github repos
    85 people
    21 teams
    

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80. Quality
    

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81. Quality
    Quality
    Quality
    Hire for
    Quality
    

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82. Quality
    Quality
    Quality
    Hire for
    Quality & Culture
    

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83. Let them Work
    Quality
    Quality
    Quality
    

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84. Quality doesn’t work
    with deadlines
    Quality
    Quality
    Quality
    

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85. Quality
    

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86. Quality
    Small teams:
    Ownership
    Productivity
    Agility
    

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87. Release early, release often:
    Defined Contract/API
    Developer environments
    Environment parity
    Quality
    Small teams:
    Ownership
    Productivity
    Agility
    

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88. Apps that:
    Do 1 thing do it well
    Straightforward Setup
    Lower barrier to entry
    Release early, release often:
    Defined Contract/API
    Developer environments
    Environment parity
    Quality
    Small teams:
    Ownership
    Productivity
    Agility
    

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89. Fin.
    Resources
    http://www.craigkerstiens.com
    http://bit.ly/howheroku
    http://adam.heroku.com
    http://www.quora.com/Scalability/How-does-Heroku-work
    

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