Let's deploy on fridays

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1. Let’s deploy on
   fridays
   I’m not slacking off,
   I’m deploying.
   

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14. Build instance
    • Poll, waiting for a build
    • Process a build
    • Build a container
    • Release the container
    

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16. Can you see it?
    Change is coming
    

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20. Build instance
    • Poll, waiting for a build
    • Process a build
    • Build a container
    • Release the container
    

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21. Build instance
    • Poll, waiting for a
    build
    • Build a container
    • Release the
    container
    • Process a build
    

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22. Build instance
    • Poll, waiting for a
    build
    • Process a build
    • Build a container
    • Release the
    container
    

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27. Upgrade API
    version
    Upgrade
    fetching posts
    Upgrade
    fetching users
    Use uuids
    

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28. Team Communication
    

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29. Upgrade API
    version
    Upgrade
    fetching posts
    Upgrade
    fetching users
    Use uuids
    

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32. git revert
    

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34. DEPLOY!!!
    

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36. Canary
    deploys
    

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37. Request
    Server A Server B
    Router
    

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38. Request
    Server A Server B
    Router
    50% 50%
    

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39. Request
    Server A Server B
    Router
    50% 50%
    

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40. Request
    Server A Server B
    Router
    33% 33%
    Server C
    33%
    

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41. github.com/dmathieu/sidekiq-canary
    

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42. Refactoring and
    benchmarking
    

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44. Customer-facing
    changes
    

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46. Granularity
    

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48. Multitask
    

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49. Gradual rollouts
    

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50. Request
    99%
    1%
    Old code path New code path
    Server
    

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51. def partial_roll?(id)
    id % 100 < 1
    end
    if partial_roll?(user_id)
    call_new_method
    else
    call_old_method
    end
    

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52. Refactoring and
    benchmarking
    

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53. Customer-facing
    changes
    

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54. Feature flags
    

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56. Going further
    

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60. bit.ly/
    deploy-friday
    

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61. Thank you
    Damien MATHIEU
    

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63. Thank you
    Questions?
    damien@heroku.com dmathieu
    

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