The document discusses concepts and best practices for continuous delivery and deployment pipelines. It advocates for automating deployments, deploying code changes frequently through pipelines that include testing at each stage, and making all environments as similar to production as possible to catch issues early. Maintaining consistency through configuration management tools and deploying to test systems first are also emphasized.

1. Andrzej Grzesik
Monday, July 2, 12

2. CONTINOUS DELIVERY
jak to ugryźć?
Andrzej Grzesik
Monday, July 2, 12

3. GREAT BOOKS!
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4. 3.6% prelegentów jest z
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5. ABOUT:ME
Present
Past
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6. I HATE COMPUTERS
disclaimer
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7. QUESTIONS?
ask them right away!
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8. So...
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9. because
is more fun than
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10. what is.. done?
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11. #define done
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12. What is done?
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13. What is done?
Coded
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14. What is done?
Coded
Checked-in
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15. What is done?
Coded
Checked-in
Reviewed
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16. What is done?
Coded
Checked-in
Reviewed
Built
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17. What is done?
Coded
Checked-in
Reviewed
Built
Tested
Monday, July 2, 12

18. What is done?
Coded
Checked-in
Reviewed
Built
Tested
Demoed
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19. not really :-)
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20. #redefine done
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21. Our highest priority is to satisfy the customer
through early and continuous delivery of valuable
software.
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22. Our highest priority is to satisfy the customer
through early and continuous delivery of valuable
software.
Agile Manifesto
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23. it’s not ready
till it’s deployed
done === released
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24. feedback!
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25. Eric Ries, The Lean Startup
build&
create hypothesis
ideas& deploy&
deliver minimum
viable product
get feedback
learn& measure&
(repeat) data&
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26. If we can
reduce the time between major iterations
We can increase our odds of success
Eric Ries, Lean Startup
Monday, July 2, 12

27. If we can
reduce the time between major iterations
We can increase our odds of success
Eric Ries, Lean Startup
Monday, July 2, 12

28. How long would it take your organization to
deploy a change that involved just one single
line of code?
Do you do this on a repeatable, reliable basis?
Mary and Tom Poppendieck,
Implementing Lean Software Development
Monday, July 2, 12

29. How long would it take your organization to
deploy a change that involved just one single
line of code?
Do you do this on a repeatable, reliable basis?
Mary and Tom Poppendieck,
Implementing Lean Software Development
Monday, July 2, 12

30. repeatable
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31. HOW?!
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32. entreth:
The Deployment Pipeline
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33. The Deployment Pipeline
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34. The Deployment Pipeline
compile
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35. The Deployment Pipeline
compile
unit test
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36. The Deployment Pipeline
compile
unit test
package
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37. The Deployment Pipeline
compile
unit test
package
artifact repository
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38. The Deployment Pipeline
compile
Acceptance
unit test
testing
package
artifact repository
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39. The Deployment Pipeline
compile
Acceptance Capacity
unit test
testing testing
package
artifact repository
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40. The Deployment Pipeline
compile
Acceptance Capacity Manual
unit test
testing testing testing
package
artifact repository
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41. The Deployment Pipeline
compile
Acceptance Capacity Manual
unit test
testing
Release
testing testing
package
artifact repository
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42. build only once!
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43. The Deployment Pipeline
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44. The Deployment Pipeline
compile
Acceptance Capacity
unit test
testing testing
package
artifact repository
Monday, July 2, 12

45. The Deployment Pipeline
compile
Acceptance Capacity Manual
unit test
testing testing testing
package
artifact repository
Monday, July 2, 12

46. The Deployment Pipeline
compile
Acceptance Capacity Manual
unit test
testing
Release
testing testing
package
artifact repository
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47. The Deploymentfear!
Pipeline
compile
Acceptance Capacity Manual
unit test
testing
Release
testing testing
package
artifact repository
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48. automate everything!
(almost)
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49. automate everything!
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50. and?
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51. well, it’s BIG
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52. all code
is production ready
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53. every version is
a Release Candidate
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54. Pro tip: --version
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55. antipatterns
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56. deploying manually
is evil!
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57. error-prone
http://www.flickr.com/photos/aaronjacobs/64368770/
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58. always different
repeatable
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59. impossible to test
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60. voodoo
http://flickr.com/photos/35541100@N00/2486381001/
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61. 2 AM deploys
http://www.flickr.com/photos/dhdesign/1096464615/sizes/z/in/photostream/
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62. the “deploy” team
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63. deploying rarely/late
symptomps: “alpha”, “beta”, “gold”
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64. Monday, July 2, 12

65. deploying rarely
late first contact with reality
creates unrealistic assumptions
tested.. in dev
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66. do you avoid deploys?
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67. deploy each?
year
quarter
week
...
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68. if it hurts
do it more often!
practice, practice, practice
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69. incremental, frequent
releases reduce risk
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70. provide data
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71. give rollback points
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72. some stats
Facebook - deploy every 10 minutes
Netflix
Etsy - 50-60 deploys/day
last project - 1374 commits, 1057
deployments, <8 months
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73. Monday, July 2, 12

74. environments
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75. If I erased ALL your production
machines, how long would you need
to be back up?
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76. well, code is in Git
mercurial, subversion, ClearCase, whathaveyou
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77. Imagine:
http://www.flickr.com/photos/roadhunter/68017745/
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78. infrastructure and configuration
is just as important
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79. version it!
(puppet, chef, etc)
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80. Befriend some admins :-)
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81. and version everything
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82. manual configuration of environments
not repeatable
privileged team of “magicians”
slight differences create errors
hard to version
doesn’t scale
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83. rollback, anyone?
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84. trucks
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85. Monday, July 2, 12

86. meanwhile,
in the real world
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87. deploys
how do I?
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88. deploys
blue-green
canary
emergency fixes
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89. bluegreen
traffic
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90. full bluegreen is costly
but great for availability
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91. canary
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92. Monday, July 2, 12

93. emergency fixes
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94. emergency fixes
go the same way
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95. DON’T break rules
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96. caveats!
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97. caveats
State
Configuration vs JEE
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98. caveat: datastores
ideally: each app has it’s own
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99. caveat: datastores
really: must be scripted
migrations scripts + from scratch
have tests talking to the db
test each datastore
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100. maybe event sourcing?
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101. branching
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102. Monday, July 2, 12

103. if your system
looks like that
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104. cut!
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105. Monday, July 2, 12

106. have integration tests
have a “test” system
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107. desktops
LOVE your autoupdate
build-in version checking and inform user
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108. desktops
Do
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109. desktops
or
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110. in practice
modules, modules, modules
pre-tested commits rock.. a bit
dvcs rock a lot!
VMs rock a lot^2!
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111. there are tools
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112. Go ($$$)
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113. Monday, July 2, 12

114. is awesome
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115. +
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116. resources
http://continuousdelivery.com
http://lmgtfy.com/?q=continuous+delivery
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117. kthxbye!
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