Test Driven Deployment - Speaker Deck

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disclaimer

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Credits

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Jim Hopp github.com/jimhopp

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Bryan McLellan loftninjas.org

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Seth Vargo sethvargo.com

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foodfightshow.org

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TDD cycle

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Red Green Refactor

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integration + UNIT Cycle

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Why??

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vagrant test kitchen berkshelf chefspec minitest chef handler guard strainer foodcritic

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vagrant

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Vagrant::Config.run do |config| config.vm.box = "precise64" config.vm.box_url = "http://files.vagrantup.com/precise64.box" config.vm.network :hostonly, "10.0.3.2" config.vm.provision :chef_solo do |chef| chef.cookbooks_path = [ 'cookbooks' ] chef.add_recipe 'minitest-‐handler' chef.add_recipe 'cube' end end local VM automation Vagrantfile

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berkshelf / librarian

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cookbook 'cube', path: 'cookbooks-sources/cube' cookbook dependency management berksfile

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strainer

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knife test: bundle exec knife cookbook test $COOKBOOK foodcritic: bundle exec foodcritic $SANDBOX/$COOKBOOK chefspec: bundle exec rspec $SANDBOX/$COOKBOOK isolated cookbook test runner colanderfile

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Guard

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guard 'shell' do watch %r|^cookbooks-sources/cube| do system <<-SH set -e berks install --shims strain cube --fail-fast vagrant provision SH end end test runner automation guardfile

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foodcritic

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watches for common anti-patterns linting # Don't do this package "mysql-server" do version "#{node['mysql']['version']}" action :install end # Do this package "mysql-server" do version node['mysql']['version'] action :install end

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Minitest chef handler

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describe_recipe 'nginx:configuration' do it 'installs version 1.0.15' do node[:nginx][:version].should == '1.0.15' end end testing after convergence files/default/tests/minitest/ default_test.rb

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integration testing

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chefspec

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before convergence spec/default_spec.rb require "chefspec" describe "example::default" do let (:chef_run) { ChefSpec::ChefRunner.new.converge 'example::default' } it "should install foo" do chef_run.should install_package 'foo' end end

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unit testing

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test kitchen

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automated cross-OS testing cube/test/kitchen/kitchenfile # FIXME: Make this stuff work platform :ubuntu do version '12.04' do box "opscode-ubuntu-12.04" box_url "https://opscode-.../opscode-ubuntu-12.04.box" end end cookbook "cube" do configuration "server" end