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![package{[
'python-pip',
'python-ldap',
]:
ensure => installed
}
Gareth Rushgrove](https://image.slidesharecdn.com/garethrushgrovepuppetconf-130824074249-phpapp02/85/Puppet-Module-Reusability-What-I-Learned-from-Shipping-to-the-Forge-48-320.jpg)
![ensure_packages([
'python-pip',
'python-ldap',
])
Gareth Rushgrove](https://image.slidesharecdn.com/garethrushgrovepuppetconf-130824074249-phpapp02/85/Puppet-Module-Reusability-What-I-Learned-from-Shipping-to-the-Forge-50-320.jpg)
![class sample (
) inherits sample::params {
class { 'sample::install': } ->
class { 'sample::config': } ~>
class { 'sample::service': } ->
Class['sample']
}
Gareth Rushgrove](https://image.slidesharecdn.com/garethrushgrovepuppetconf-130824074249-phpapp02/85/Puppet-Module-Reusability-What-I-Learned-from-Shipping-to-the-Forge-68-320.jpg)
![Anchor['sample::begin'] ~>
Class['sample::service']
Class['sample::install'] ~>
Class['sample::service']
Class['sample::config'] ~>
Class['sample::service']
Gareth Rushgrove](https://image.slidesharecdn.com/garethrushgrovepuppetconf-130824074249-phpapp02/85/Puppet-Module-Reusability-What-I-Learned-from-Shipping-to-the-Forge-70-320.jpg)
![task :test => [
:syntax,
:lint,
:spec,
]
Gareth Rushgrove](https://image.slidesharecdn.com/garethrushgrovepuppetconf-130824074249-phpapp02/85/Puppet-Module-Reusability-What-I-Learned-from-Shipping-to-the-Forge-125-320.jpg)
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Puppet Module Reusability - What I Learned from Shipping to the Forge
The document discusses the challenges and best practices of reusing Puppet modules, highlighting issues such as module sharing difficulties, dependency management, and the importance of testing. It provides insights on structuring modules, managing dependencies with tools like librarian-puppet, and implementing a robust testing framework using RSpec. Additionally, it proposes improvements to enhance module reuse and maintainability in Puppet environments.
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Puppet Module Reusability - What I Learned from Shipping to the Forge
- 1. Puppet Module Reusability Learning fromshipping to the Forge Gareth Rushgrove
- 2. Who (Who is thisperson?)
- 3.
- 4.
- 8.
- 11.
- 12. Last puppet module Iwrote
- 13. The Problem (Sharing modulesis hard)
- 14.
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- 21.
- 22.
- 23. Not publishing tothe Forge 3
- 24.
- 25.
- 26.
- 27.
- 28. Sometimes I just wantto write nginx configuration Gareth Rushgrove
- 29.
- 30. Package { 'build-essential’: ensure=> installed, } Gareth Rushgrove
- 31.
- 32.
- 33.
- 34.
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- 36.
- 37.
- 38.
- 39. <Puppet::Error: true is nota string. Gareth Rushgrove
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- 45.
- 46. Package { 'build-essential’: ensure=> installed, } Gareth Rushgrove
- 47.
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- 54.
- 55. And much more GarethRushgrove
- 56.
- 57. NPM, Bundler, Pip, Mix,Leiningen Gareth Rushgrove
- 58.
- 59.
- 60. echo 'modules' >>.gitignore Gareth Rushgrove
- 61. dependency 'puppetlabs/stdlib' dependency 'garethr/erlang' dependency'maestrodev/wget' Gareth Rushgrove
- 62. forge "http://forge.puppetlabs.com" mod 'puppetlabs/ruby' mod'puppetlabs/ntp' mod 'puppetlabs/git' mod 'puppetlabs/vcsrepo' mod 'puppetlabs/apt' mod 'puppetlabs/gcc' Gareth Rushgrove
- 63.
- 64. A Nice Module Pattern (Structuringmodules for reuse)
- 65.
- 66.
- 67. manifests !"" config.pp !"" init.pp !""install.pp !"" params.pp #"" service.pp Gareth Rushgrove
- 68. class sample ( )inherits sample::params { class { 'sample::install': } -> class { 'sample::config': } ~> class { 'sample::service': } -> Class['sample'] } Gareth Rushgrove
- 69. anchor { 'sample::begin':} -> class { 'sample::install': } -> class { 'sample::config': } class { 'sample::service': } -> anchor { 'sample::end': } Gareth Rushgrove
- 70. Anchor['sample::begin'] ~> Class['sample::service'] Class['sample::install'] ~> Class['sample::service'] Class['sample::config']~> Class['sample::service'] Gareth Rushgrove
- 71. Puppet module tool GarethRushgrove
- 72. puppet module generatename Gareth Rushgrove
- 73.
- 74.
- 75. !"" manifests !"" spec !""tests !"" Modulefile !"" .gitignore #"" README Gareth Rushgrove
- 76. Creating your own moduleskeleton Gareth Rushgrove
- 77.
- 78.
- 79. !"" manifests !"" spec !""tests !"" templates !"" files !"" lib !"" Gemfile Gareth Rushgrove
- 80. !"" Rakefile !"" .nodeset.yml !"".fixtures.yml !"" .travis.yml !"" Modulefile !"" .gitignore #"" README.md Gareth Rushgrove
- 81. Creates install, config, service, paramsclasses Gareth Rushgrove
- 82.
- 83. Better unit testing setupusing rspec- puppet-helper Gareth Rushgrove
- 84. Adds syntax andlint checking Gareth Rushgrove
- 85. Adds Travis CI configuration GarethRushgrove
- 86. Adds integration tests withrspec-system Gareth Rushgrove
- 87.
- 88. Focus on the interface GarethRushgrove
- 89. Minimize number of entrypoints Gareth Rushgrove
- 90.
- 91. Multi-OS Support (Where toabstract the differences)
- 92.
- 93. Keep logic inone place Gareth Rushgrove
- 94. case $::osfamily { 'Debian':{ } 'RedHat', 'Amazon': { } default: { fail("${::operatingsystem} not su } Gareth Rushgrove
- 95.
- 96.
- 97. 0.0.x supported Ubuntu only GarethRushgrove
- 98. 0.1.x supports Ubuntu, Debian, Redhat,Suse Gareth Rushgrove
- 99.
- 100. Pull requests to therescue
- 102. Insist on testswith open source contributions Gareth Rushgrove
- 103. Module Testing (Code shouldhave tests)
- 104.
- 105.
- 106.
- 107. Modules increasingly have interfaceswith other modules Gareth Rushgrove
- 108. Modules increasingly used inmany Ruby and Puppet version combinations Gareth Rushgrove
- 109. Good news. Thetools got better Gareth Rushgrove
- 110.
- 111.
- 112.
- 113. puppet-lint --with-filename /etc/puppet/modules foo/manifests/bar.pp:trailing whitespace found on line 1 apache/manifests/server.pp: variable not enclosed in {} on line 56 Gareth Rushgrove
- 114.
- 115. Validate Puppet and ERBsyntax
- 116.
- 117. bundle exec rakesyntax ---> syntax:manifests ---> syntax:templates Gareth Rushgrove
- 118.
- 119.
- 120. context "epel enabled"do let(:params) {{ :epel_enable => true }} it { should contain_class('epel') } end Gareth Rushgrove
- 121. context "epel disabled"do let(:params) {{ :epel_enable => false }} it { should_not contain_class('epel') } end Gareth Rushgrove
- 122.
- 123. Test the interfacenot the implementation Gareth Rushgrove
- 124. All of theabove Gareth Rushgrove
- 125. task :test =>[ :syntax, :lint, :spec, ] Gareth Rushgrove
- 126. bundle exec raketest Gareth Rushgrove
- 127.
- 128.
- 130.
- 131. --- language: ruby before_install: rmGemfile.lock || true rvm: - 1.8.7 - 1.9.3 script: bundle exec rake test env: matrix: - PUPPET_VERSION="~> 2.7.0" - PUPPET_VERSION="~> 3.1.0" - PUPPET_VERSION="~> 3.2.0" Gareth Rushgrove
- 132. A matrix of possibilities GarethRushgrove
- 133.
- 134.
- 135.
- 136.
- 137.
- 138. Test that Puppetruns without errors Gareth Rushgrove
- 139. it 'should runwithout errors' do pp = "class { 'sample': }" puppet_apply(pp) do |r| r.exit_code.should == 2 end end Gareth Rushgrove
- 140. Test runs are idempotent GarethRushgrove
- 141. it 'should runwithout errors' do pp = "class { 'sample': }" puppet_apply(pp) do |r| r.exit_code.should == 2 r.refresh r.exit_code.should be_zero end end Gareth Rushgrove
- 142. Test that themodule installs relevant binaries Gareth Rushgrove
- 143. it 'should installthe erl binary' do shell 'which erl' do |r| r.stdout.should =~ //usr/bin/e r.stderr.should be_empty r.exit_code.should be_zero end end Gareth Rushgrove
- 144. Test against different operatingsystems Gareth Rushgrove
- 145. default_set: 'centos-64-x64' sets: 'centos-64-x64': nodes: "main.foo.vm": prefab: 'centos-64-x64' 'fedora-18-x64': nodes: "main.foo.vm": prefab:'fedora-18-x64' 'debian-607-x64': nodes: "main.foo.vm": Gareth Rushgrove
- 146. Room for improvements (Making reuseeasier in Puppet)
- 147. Run your ownForge 1
- 148. A more secureForge 2
- 149.
- 150.
- 151.
- 152.
- 153. private class elixir::install{ Gareth Rushgrove
- 154.
- 155.
- 156.
- 157.
- 158. class diamond ( $version, $enable, $package_name, $template, ){ implements packageandservice Gareth Rushgrove
- 159. Questions? (And thanks forlistening)