I deploy on Fridays (and maybe you should too)

Have you ever heard someone say "Don’t deploy on Friday"? I used to say that too! Learn about resilience and operability, deployments, pipelines and continuous testing. Discover trunk based development, pair programming and best practices, and gain the confidence to deploy any day of the week!

Transcript

1. I DEPLOY ON

   FRIDAYS

   (AND MAYBE YOU SHOULD TOO)
   MICHIEL ROOK

   @MICHIELTCS
   

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2. @michieltcs
   

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3. @michieltcs
   DEPLOYING
   

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4. @michieltcs
   ON A FRIDAY
   

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5. @michieltcs
   

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6. @michieltcs
   DEPLOYING?
   

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7. @michieltcs
   ON A

   FRIDAY??
   

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12. @michieltcs
    

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13. @michieltcs
    BUT WHY?
    

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14. @michieltcs
    TRADITION
    

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15. @michieltcs
    RISK
    

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16. @michieltcs
    CONTROL
    

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17. @michieltcs
    CONFIDENCE
    & TRUST
    

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18. @michieltcs
    TIME TO REPAIR / RECOVER
    

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19. @michieltcs
    ON-CALL
    

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20. @michieltcs
    SO
    

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21. @michieltcs
    DON'T DEPLOY ON A FRIDAY!
    

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22. @michieltcs
    I USED TO SAY THAT TOO
    

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23. @michieltcs
    I LIKE MY WEEKENDS
    

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24. @michieltcs
    AND MY EVENINGS
    

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25. @michieltcs
    WHAT ABOUT BUGS?
    

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26. @michieltcs
    WHAT ABOUT 3 PM?
    

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27. @michieltcs
    WHAT ABOUT THURSDAY?
    

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28. @michieltcs
    FRIDAY IS 20%

    OF THE WEEK
    

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29. @michieltcs
    IMPROVE!
    

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30. @michieltcs
    IF IT HURTS

    DO IT MORE OFTEN
    

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31. @michieltcs
    FAILURE IS NOT

    THE OPPOSITE OF SUCCESS
    

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32. SUCCESS CONSISTS
    OF GOING FROM
    FAILURE TO
    FAILURE WITHOUT
    LOSS OF
    ENTHUSIASM.
    Winston Churchill
    

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33. @michieltcs
    BIG STEPS
    

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34. @michieltcs
    FAIL BIG
    

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35. @michieltcs
    SMALL STEPS
    

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36. @michieltcs
    FAIL SMALL
    

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37. @michieltcs
    MAKE IT EFFORTLESS
    

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38. @michieltcs
    REDUCE RISK
    

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39. @michieltcs
    $ = REALIZED VALUE

    CREDITS TO @FGOULDING
    

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40. @michieltcs
    CONTINUOUS EVERYTHING
    

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41. @michieltcs
    DELIVERING VALUE
    TO USERS
    

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42. @michieltcs
    SAFELY & QUICKLY
    

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43. @michieltcs
    IN A SUSTAINABLE
    WAY
    

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44. @michieltcs
    DEV BUILD / TEST ACCEPTANCE PRODUCTION
    CONTINUOUS DELIVERY
    

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45. @michieltcs
    CODE IS ALWAYS

    IN A RELEASABLE STATE
    

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46. @michieltcs
    DEV BUILD / TEST ACCEPTANCE PRODUCTION
    CONTINUOUS DEPLOYMENT
    

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47. @michieltcs
    HIGH VS. LOW PERFORMING TEAMS
    Source: Accelerate - The Science Of DevOps
    

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48. @michieltcs
    SO
    

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49. @michieltcs
    IF YOU CAN DEPLOY

    ON FRIDAY
    

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50. @michieltcs
    AT 5 PM
    

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51. @michieltcs
    YOU CAN DEPLOY

    ANY TIME
    

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52. @michieltcs
    BUT OUR CODE IS
    OLD
    

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53. @michieltcs
    BUT OUR CODE IS
    NOT UNDER TEST
    

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54. @michieltcs
    BUT OUR CODE IS
    IMPOSSIBLE TO CHANGE
    

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55. @michieltcs
    DEALING WITH "LEGACY"
    

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56. @michieltcs
    STRANGLER PATTERN
    

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57. @michieltcs
    ORIGINAL
    MONOLITH
    DB
    @michieltcs
    

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58. @michieltcs
    ORIGINAL
    MONOLITH
    PROXY
    SERVICE
    ORIGINAL
    MONOLITH
    DB
    DB
    DB
    @michieltcs
    

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59. @michieltcs
    ORIGINAL
    MONOLITH
    PROXY
    SERVICE
    ORIGINAL
    MONOLITH
    ORIGINAL
    MONOLITH
    SERVICE SERVICE
    SERVICE
    PROXY
    DB
    DB
    DB
    DB
    DB DB
    @michieltcs
    

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60. @michieltcs
    BRANCH BY ABSTRACTION
    

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61. @michieltcs
    CLIENT
    OLD
    MODULE
    CLIENT
    CLIENT
    @michieltcs
    

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62. @michieltcs
    CLIENT
    ABSTRACTION
    LAYER
    OLD
    MODULE
    CLIENT
    CLIENT
    @michieltcs
    

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63. @michieltcs
    CLIENT
    ABSTRACTION
    LAYER
    OLD
    MODULE
    CLIENT
    CLIENT
    @michieltcs
    

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64. @michieltcs
    CLIENT ABSTRACTION
    LAYER
    OLD
    MODULE
    CLIENT
    CLIENT ABSTRACTION
    LAYER
    NEW
    MODULE
    @michieltcs
    

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65. @michieltcs
    CLIENT ABSTRACTION
    LAYER
    OLD
    MODULE
    CLIENT
    CLIENT ABSTRACTION
    LAYER
    NEW
    MODULE
    @michieltcs
    

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66. @michieltcs
    CLIENT
    ABSTRACTION
    LAYER
    CLIENT
    CLIENT
    NEW
    MODULE
    @michieltcs
    

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67. @michieltcs
    CLIENT
    NEW
    MODULE
    CLIENT
    CLIENT
    @michieltcs
    

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68. @michieltcs
    ON BRANCHES
    

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69. @michieltcs
    CONFLICTS
    

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70. @michieltcs
    "This pull request affects 31 files...

    could be a lot of conflicts if we don't merge it soon"
    

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71. @michieltcs
    

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72. @michieltcs
    CONTINUOUS INTEGRATION
    

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73. @michieltcs
    INTEGRATE TO MASTER

    AT LEAST DAILY
    

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74. @michieltcs
    DELAYING INTEGRATION
    

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75. @michieltcs
    MERGING FEATURES?
    

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76. @michieltcs
    DECOUPLE

    DEPLOYMENTS FROM
    RELEASES
    

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77. @michieltcs
    FEATURE TOGGLES
    

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78. @michieltcs
    

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79. @michieltcs
    @michieltcs
    

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80. @michieltcs
    FEATURE TOGGLE DEBT
    

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81. @michieltcs
    BRANCHING STRATEGIES
    

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82. @michieltcs
    BRANCHING STRATEGIES
    1. DON'T BRANCH
    

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83. @michieltcs
    BRANCHING STRATEGIES
    1. DON'T BRANCH
    2. DON'T BRANCH
    

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84. @michieltcs
    BRANCHING STRATEGIES
    1. DON'T BRANCH
    2. DON'T BRANCH
    3. DON'T BRANCH
    

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85. @michieltcs
    

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86. @michieltcs
    TRUNK

    BASED DEVELOPMENT
    

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87. @michieltcs
    SHORT LIVED

    FEATURE BRANCHES?
    

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88. @michieltcs
    PULL REQUESTS?
    

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89. @michieltcs
    CODE REVIEWS ARE USEFUL
    

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90. @michieltcs
    BUT: FLOW DELAY
    

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91. PAIR PROGRAMMING
    

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92. @michieltcs
    CONTINUOUS INLINE

    CODE REVIEW
    

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93. MOB PROGRAMMING
    

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94. @michieltcs
    PIPELINES
    

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95. @michieltcs
    AUTOMATION
    

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96. @michieltcs
    AUTOMATION

    AUTOMATION
    

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97. @michieltcs
    AUTOMATION

    AUTOMATION

    AUTOMATION
    

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98. @michieltcs
    COMPILE
    CHECKOUT TEST PACKAGE
    

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99. @michieltcs
    COMPILE
    CHECKOUT TEST PACKAGE
    

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100. @michieltcs
     COMPILE
     CHECKOUT TEST PACKAGE
     

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101. @michieltcs
     COMPILE
     CHECKOUT TEST PACKAGE
     

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102. @michieltcs
     COMPILE
     CHECKOUT TEST PACKAGE
     

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103. @michieltcs
     DEPLOY ACC VERIFY ACC DEPLOY PROD VERIFY PROD
     

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104. @michieltcs
     DEPLOY ACC VERIFY ACC DEPLOY PROD VERIFY PROD
     

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105. @michieltcs
     DEPLOY ACC VERIFY ACC DEPLOY PROD VERIFY PROD
     

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106. @michieltcs
     DEPLOY ACC VERIFY ACC DEPLOY PROD VERIFY PROD
     

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107. @michieltcs
     DEPLOY ACC VERIFY ACC DEPLOY PROD VERIFY PROD
     

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108. @michieltcs
     CONTINUOUS TESTING
     

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109. @michieltcs
     CONTINUOUS TESTING
     UNIT TESTS
     ACCEPTANCE TESTS
     E2E

     TESTS
     Cost Speed
     INTEGRATION TESTS
     

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110. @michieltcs
     CONTINUOUS TESTING
     UNIT TESTS
     ACCEPTANCE TESTS
     E2E

     TESTS
     Cost Speed
     Exploratory

     testing & user

     feedback
     Monitoring

     & alerting
     INTEGRATION TESTS
     

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111. @michieltcs
     GOOD ENOUGH
     

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112. @michieltcs
     NO TEST SUITE
     DETECTS EVERY ISSUE
     

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113. @michieltcs
     PIPELINE SPEED = KEY
     

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114. @michieltcs
     DEPLOYMENTS
     

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115. @michieltcs
     ROLLING UPDATE
     

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116. @michieltcs
     LOAD BALANCER
     ROLLING UPDATE
     SERVICE V1.0 SERVICE V1.0
     SERVICE V1.0
     @michieltcs
     

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117. @michieltcs
     LOAD BALANCER
     ROLLING UPDATE
     SERVICE V1.0 SERVICE V1.0
     SERVICE V1.0
     SERVICE V1.1
     @michieltcs
     

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118. @michieltcs
     LOAD BALANCER
     ROLLING UPDATE
     SERVICE V1.0 SERVICE V1.1
     SERVICE V1.0
     SERVICE V1.0
     @michieltcs
     

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119. @michieltcs
     LOAD BALANCER
     ROLLING UPDATE
     SERVICE V1.0 SERVICE V1.1
     SERVICE V1.0
     SERVICE V1.1
     @michieltcs
     

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120. @michieltcs
     LOAD BALANCER
     ROLLING UPDATE
     SERVICE V1.0 SERVICE V1.1
     SERVICE V1.1
     SERVICE V1.0
     @michieltcs
     

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121. @michieltcs
     LOAD BALANCER
     ROLLING UPDATE
     SERVICE V1.0 SERVICE V1.1
     SERVICE V1.1
     SERVICE V1.1
     @michieltcs
     

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122. @michieltcs
     LOAD BALANCER
     ROLLING UPDATE
     SERVICE V1.1 SERVICE V1.1
     SERVICE V1.1
     SERVICE V1.0
     @michieltcs
     

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123. @michieltcs
     LOAD BALANCER
     ROLLING UPDATE
     SERVICE V1.1 SERVICE V1.1
     SERVICE V1.1
     @michieltcs
     

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124. @michieltcs
     pipeline {

     stages {

     stage('Run tests') {

     sh "gradle check"

     }

     

     stage('Build docker image') {

     sh "docker build -t jobservice:${env.BUILD_NUMBER} ."

     sh "docker push jobservice:${env.BUILD_NUMBER}"

     }

     

     stage('Deploy staging') {

     sh "ansible-playbook -e BUILD=${env.BUILD_NUMBER}

     -i staging deploy.yml"

     }

     

     stage('Deploy production') {

     sh "ansible-playbook -e BUILD=${env.BUILD_NUMBER}

     -i prod deploy.yml"

     }

     }

     PIPELINE AS CODE
     image: registry.local/runner:latest

     

     stages:

     - test

     - images

     - deploy

     

     phpunit:

     stage: test

     script:

     - bin/phpunit

     

     images:

     stage: images

     script:

     - make images publish

     only:

     - master

     

     deploy:

     stage: deploy

     script:

     - make deploy

     only:

     - master
     

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125. @michieltcs
     BUILD PIPELINE
     @michieltcs
     

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126. @michieltcs
     FEEDBACK!
     

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127. @michieltcs
     DEPLOYING
     

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128. @michieltcs
     ON A FRIDAY
     

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129. @michieltcs
     YOU CAN DO IT TOO!
     

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130. @michieltcs
     THANK YOU FOR LISTENING!
     @michieltcs / michiel@michielrook.nl
     www.michielrook.nl
     

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