The Setup (Ruby Hoedown)

Transcript

1. Setup the

2. managing an army of laptops ...with puppet

3. hi, my name is will farrington

4. but you might know me as @wfarr  

5. None

6. i work at a “little-known startup” called github

7. I work on System operations System operations internal apps the

   setup

8. why

9. once upon a time

10. there was a developer developer

11. there was a designer designer

12. oh man, this new macbook pro is sweet! let me

    run a bunch of stuff by hand so I can get some work done in about 6 to 8 hours, maybe. - some folks

13. once upon a time

14. there was a crazy person crazy person

15. oh man, this new macbook pro is sweet! let me

    run a bunch of stuff by hand so I can get some work done in about 6 to 8 hours, maybe. - a bunch of crazy folks
16. None

17. we made a huge mistake everybody

18. i thought we cared about stuff

19. testing

20. repeatability

21. Automation

22. they matter for our software

23. they matter for our servers

24. but not for our laptops

25. !!!

26. None
27. None

28. what

29. a living, breathing software project that tests and automates every

    little bit of your machine with love

30. @jbarnette

31. about 6000 about 3600 1415 38 lines of Ruby lines

    of Puppet commits contributors some numbers

32. chrome, colloquy, dropbox, elasticsearch, emacs, erlang, git, homebrew, hub, iterm2,

    java, macvim, memcache, mongodb, mysql, nginx, nodejs, nvm, 1passwd, personalization, postgresql, projects, python, qt, rbenv, rdio, redis, ruby, solr, sparrow, textmate, virtualbox, viscosity, wget, xcode, xquartz, zeromq, zsh, and more daily.

33. less than 6 months

34. in

35. None

36. hours of frustration getting github.com and other projects even working

    locally
37. None

38. reality

39. None
40. None

41. drink coffee for 20 minutes

42. Text

43. None

44. The Command Line Interface

45. » gh-setup --projects * github

46. github » script/bootstrap github » script/server github » open github.dev

    # Ready to ship things!

47. » gh-setup octostatus # sets it all up. boom.

48. » gh-setup --stealth # development mode

49. None

50. The Puppet DSL

51. is pretty easy

52. Resources

53. basically everything in puppet

54. package { ‘redis-server’: }

55. file { ‘/etc/motd’: content => ‘Hello, world!’ }

56. service { ‘riak’: ensure => running, subscribe => File[‘/etc/riak/vm.args’] }

    resource type

57. service { ‘riak’: ensure => running, subscribe => File[‘/etc/riak/vm.args’] }

    resource name

58. service { ‘riak’: ensure => running, subscribe => File[‘/etc/riak/vm.args’] }

    resource parameters

59. service { ‘riak’: ensure => running, subscribe => File[‘/etc/riak/vm.args’] }

    metaparameter

60. metaparameters are important

61. metaparameters are everywhere

62. before require subscribe notify this resource must run before this

    resource must run after this resource runs after and watches this resource runs before and tells

63. custom types

64. define git::config::local($key, $value) { $safekey = shellquote($key) $safevalue = shellquote($value)

    $command = "git config --local ${safekey} $ {safevalue}" exec { "${command} in ${name}": command => $command, cwd => $name, onlyif => 'test -d .git', unless => "git config --local ${safekey}", require => Package['git'] } }

65. git::config::local { ‘~/github/hubot’: key => ‘heroku.account’, value => ‘work’ }

66. Classes

67. class redis { package { ‘redis-server’: } service { ‘redis’:

    require => Package[‘redis-server’] } }

68. include/require

69. class myapp { require redis include amazingness::incarnate }

70. this matters a whole lot everybody

71. Puppet has its own dsl for reasons

72. puppet was designed for sysadmins

73. puppet was designed for sysadmins okay,

74. 2. puppet has semantics about execution that would be confusing

    and unintuitive in ruby or python or most other languages a

75. puppet uses a DAG to apply resources

76. a DAG is a directed, acyclic graph

77. a DAG means relationships matter

78. code order does not imply execution order

79. None

80. The Setup is a stdlib for puppet

81.  The Setup is a stdlib for puppet

82. class github::projects::octostatus { require redis ... }

83. class github::projects::octostatus { ... $dir = "${github::config::srcdir}/ octostatus" ... }

84. class github::projects::octostatus { ... git::repo { $dir: source => 'github/octostatus'

    } ... }

85. class github::projects::octostatus { ... ruby::local { $dir: version => '1.9.3-p194',

    require => Git::Repo[$dir] } }
86. None

87. I like doing things my way

88. I like doing things my way

89. class github::people::hubot { include github::projects::all }

90. class github::people::keavy { require gitx require onepassword require sizeup require

    sparrow require textmate }

91. class github::people::yossef { package { 'Alfred': provider => 'appdmg', source

    => $alfred_dmg_url; } }

92. class github::people::yossef { setup::tarballed_app { 'Mailplane': source => $mailplane_url; }

    }

93. class github::people::wfarr { git::config::global { 'alias.st': value => 'status'; 'alias.ci':

    value => 'commit'; } }

94. class github::people::wfarr { file { '/Users/wfarr/.gitignore': ensure => present, content

    => '.DS_STORE' } }

95. class github::people::wfarr { package { 'emacs': } git::repo { '/Users/wfarr/.emacs.d':

    source => 'wfarr/.emacs.d', submodules => true } }

96. class github::people::wfarr { setup::osx_defaults { 'require password always': ensure =>

    present, domain => 'com.apple.screensaver', key => 'askForPassword', value => 1, user => 'wfarr' } }

97. lessons

98. puppeteer supportocat

99. people will do crazy shit to it

100. if it breaks it is your job to fix it

101. if it breaks it is your job to fix it

     no matter what

102. developers and designers are really good at breaking things

103. people will not report “minor” problems

104. people will barely report “major” problems

105. None

106. not having to report bugs makes people happy

107. getting regular bug reports makes us happy

108. users getting github notifications that the bug they hit and

     never even reported is already fixed
109. None

110. reduce potential for bugs by vendoring

111. EVERYTHING

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113. None

114. » du -sh /opt/github 3.8G /opt/github

115. there’s

116. None

117. =(

118. » env | grep GH_ | wc -l 24

119. » env | grep \ GH_REDIS_PORT GH_REDIS_PORT=16379

120. » env | grep \ GH_MYSQL_PORT GH_MYSQL_PORT=13306

121. None

122. people will never remember to update regularly

123. tell people when they should update

124. None

125. sneak peek

126. => Installing qt...

127. None
128. None

129. => Fetching snapshot... => Installing qt...

130. => Fetching snapshot... => Installing ruby-1.9.3...

131. => Fetching snapshot... => Installing node-0.6.8...

132. we don't have the ability to mandate environments

133. we don't even want to mandate environments

134. we have to provide something dramatically better than just doing

     it yourself

135. prim donn

136. the setup is not a tool for it administrators

137. the setup is a tool for people who want to

     get stuff done, sanely

138. the setup has goals

139. user-extensible

140. framework

141. stable

142. easy to use

143. not a maintenance nightmare

144. zomg want

145. you don’t =(

146. ... yet

147. we are working hard to open source it

148. Soon!

149. Setup the

150. questions

151. love ops? come work with us puppet, erlang, ruby, shell,

     c and all the graphs you can shake a stick at
152. None

153. thanks