1. Continuous Delivery
Antipatterns
Andrzej Grzesik
ebay
#DV13-cda
@ags313

2. cd antipatterns; ls -al
Andrzej Grzesik
ebay
#DV13-cda
@ags313

3. Andrzej Grzesik
Demo
@ags313
andrzej@grzesik.it
andrzejgrzesik.info
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4. MY OPINIONS ARE MY OWN
disclaimer
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5. ABOUT:ME
I’m proud of:
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6. I HATE COMPUTERS
disclaimer ;-)
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7. QUESTIONS?
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8. NO!
42
IT DEPENDS
answers!
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9. QUESTIONS?
ask them right away!
#DV13-cda
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10. #DEVOXX
keep on tweeting!
#DV13-cda
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11. TL; DR:
RELEASE MORE OFTEN!
and don’t listen to ‘no-can-do’s
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12. SOFTWARE
is a people problem
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13. IN THE BEGINNING
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14. Our highest priority is to satisfy the customer through early and
continuous delivery of valuable software.
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15. Our highest priority is to satisfy the customer through early and
continuous delivery of valuable software.
#DV13-cda
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16. Our highest priority is to satisfy the customer through early and
continuous delivery of valuable software.
agile manifesto, 2001
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17. DELIVERY IS
ORGANIZATION-SPECIFIC
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18. CHANGE SCENARIO
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19. 1. PRIORITIZE PROBLEMS
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20. 2. FIX FIRST
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21. REPEAT
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22. A LONG TIME AGO
IN A GALAXY FAR, FAR AWAY…
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23. SYSTEM (TM)
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24. DEVELOPERS
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25. DEVELOPERS
everywhere-sourced
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26. OH, WAIT
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27. #DV13-cda
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28. PUSH THEIR CODE
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29. SITE BREAKS
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30. SITE BREAKS
for two days
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31. DURING HOT SEASON
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32. ALL ROLL-BACK!
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33. TO WHERE?
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34. FROM WHERE?
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35. PROBLEM:
NO IDEA WHAT IS WHERE
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36. GIT PUSH --FORCE PROD
#randomhashisbetterthannone
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37. DO: --VERSION
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38. BETTER:
DO SEMANTIC VERSIONING
http://semver.org/
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39. DO: KNOW WHAT IS WHERE
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40. DO: KNOW WHAT IS WHERE
(have a dashboard)
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41. GLU
https://github.com/pongasoft/glu
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42. PROBLEM:
MANY TEAMS/UNSTABLE CODE
#DV13-cda
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43. MULTIPLE REPO IS OK
one for dev, one for releases
#DV13-cda
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44. GIT FLOW IS OK
http://nvie.com/posts/a-successful-git-branching-model/
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45. PERSONAL FAVOURITE:
STABLE MASTER
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46. BUSINESS CONCLUSION:
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47. #DV13-cda
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48. RELEASES == RISK
let’s avoid them!
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49. WHAT DO YOU GET?
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50. PROBLEM:
FEAR OF RELEASING
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51. STAGNATION CREEPS IN
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52. QUIET PERIODS
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53. RELEASE ‘TRAINS’
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54. RC, BETA, GOLD
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55. SOLUTION: INVOLVE BUSINESS
a.k.a. ‘manage stakeholders’
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56. SMALL CHANGES
SHOULD HAPPEN QUICKLY
great selling point
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57. BUILD ENVS
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58. OK, LET’S HAVE A PIPELINE
#DV13-cda
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59. PROBLEM:
SLOW
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60. #DV13-cda
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61. SOLUTION:
PARALELLIZE
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62. WHICH PART?
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63. #DV13-cda
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64. FREE WIN:
DECOUPLED DESIGN
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65. PROBLEM: RECOMPILING
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66. #DV13-cda
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67. #DV13-cda
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68. #DV13-cda
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69. HOW DO I REPLICATE PRODUCTION?
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70. DO: USE A BINARY REPOSITORY
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71. PROBLEM:
SEPARATE TEAMS
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72. RELEASE TEAM
dealing with ‘danger‘
#DV13-cda
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73. SYMPTOM:
DEALING WITH DANGER
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74. LIKES TO BE MANUAL
‘job security‘
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75. US VS THEM
‘leave me alone, I’m important’
#DV13-cda
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76. RELEASE PROCESSES
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77. CURIOUS RELEASE PROCESSES
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78. WORK EXPANDS TO FILL THE TIME
AVAILABLE FOR ITS COMPLETION
Parkinson’s Law
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79. TOO CURIOUS PROCESSES
LEAD TO
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80. UNOFFICIAL RELEASES
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81. UNOFFICIAL RELEASES
(don’t do them)
#DV13-cda
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82. BUNKERS
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83. #DV13-cda
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84. SOLUTION:
ENCOURAGE INTERACTIONS
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85. BREAK && INTEGRATE
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86. BREAK && INTEGRATE
repeatedly
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87. GAMES ARE AWESOME!
repeat the event
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88. PROBLEM:
MANUAL INFRASTRUCTURE
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89. INFRASTRUCTURE
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90. WE USE CHEF, WE’RE SAFE
^^
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91. #DV13-cda
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92. DID YOU TEST?
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93. #DV13-cda
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94. FOOD CRITIC
lint for chef
#DV13-cda
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95. lint for chef
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96. PUPPET VS CHEF VS …
#DV13-cda
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97. PROBLEM:
ENV BUILDS
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98. SLOW?
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99. #DV13-cda
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100. PROBLEM:
INTERNET
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101. QUIZ
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102. #DV13-cda
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103. NEED INTERNET TO BUILD?
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104. OF COURSE!
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105. #DV13-cda
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106. RUBYGEMS.ORG
CPAN.ORG
MAVEN.ORG
#DV13-cda
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107. RUBYGEMS.ORG
CPAN.ORG
MAVEN.ORG
go down!
#DV13-cda
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108. MAKE YOUR BUILD RUN WITHOUT
INTERNET
or at least try, you’ll learn fun things :-)
#DV13-cda
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109. APPLICATION
AND ENVIRONMENT
#DV13-cda
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110. SAVE TIME AND NERVES
#DV13-cda
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111. BINARY REPO/PROXY/…
#DV13-cda
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112. PROBLEM:
NO RUNTIME UPGRADE
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113. #DV13-cda
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114. #DV13-cda
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115. #DV13-cda
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116. DESKTOPS
#DV13-cda
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117. #DV13-cda
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118. FIREFOX IS UPDATING
and you can not use it
#DV13-cda
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119. MOBILE APPS
#DV13-cda
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120. WEBVIEW IS NICE
#DV13-cda
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121. FREQUENT RELEASES
make your user curious
#DV13-cda
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122. MAKE USERS SAY BYE
#DV13-cda
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123. CHANGE BACKEND
YOU CAN
#DV13-cda
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124. FORCING DOESN’T WORK
#DV13-cda
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125. ASK IF NEW
FEATURES THEY WANT
#DV13-cda
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126. PROBLEM:
DEPLOYMENT FAILURES
#DV13-cda
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127. #DV13-cda
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128. DEPLOYMENTS
DO YOU TRACK THEM?
#DV13-cda
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129. FAILED DEPLOYMENT PROCEDURE
ROLLBACK? OR DOWNTIME?
#DV13-cda
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130. DO: TEST YOUR ROLLBACK
#DV13-cda
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131. AS YOU TEST YOUR BACKUPS
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132. PROBLEM:
STATE
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133. LONG RUNNING ……
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134. SAGAS?
#DV13-cda
http://www.cs.cornell.edu/andru/cs711/2002fa/reading/sagas.pdf
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135. DATABASES…
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136. ENVIRONMENTS
#DV13-cda
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137. LOVE PARTIAL FAILURES
#DV13-cda
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138. DO: BUILD IN SWITCHES
#DV13-cda
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139. DO: APP IS ENV AWARE
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140. DEVENV
#DV13-cda
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141. AUTOMATE IT!
#DV13-cda
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142. CHEF, PUPPET, ANSIMBLE, DOCKER,
VAGRANT
pick any
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143. package "haproxy" do!
action :install!
end!
!
template "/etc/haproxy/haproxy.cfg" do!
source "haproxy.cfg.erb"!
owner "root"!
group "root"!
mode 0644!
notifies :restart, "service[haproxy]"!
end!
!
service "haproxy" do!
supports :restart => true!
action [:enable, :start]!
end!
#DV13-cda
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144. RELEASE!
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145. RELEASE!
…the Kraken
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146. #DV13-cda
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147. thanks!
#DV13-cda
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148. thanks!
please tweet && feedback!
#DV13-cda
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