Demo cookbook for screwing around

.gitignore

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+.vagrant
+Berksfile.lock
+*~
+*#
+.#*
+\#*#
+.*.sw[a-z]
+*.un~
+/cookbooks
+
+# Bundler
+Gemfile.lock
+bin/*
+.bundle/*
+
+.kitchen/
+.kitchen.local.yml

.kitchen.yml

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+---
+driver:
+  name: vagrant
+
+provisioner:
+  name: chef_zero
+
+platforms:
+  - name: centos-6.5
+
+suites:
+  - name: default
+    run_list:
+      - recipe[helperdemo]
+    attributes:

Berksfile

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+site :opscode
+
+metadata

Gemfile

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+source 'https://rubygems.org'
+
+gem 'berkshelf'
+gem 'test-kitchen'
+gem 'kitchen-vagrant'

LICENSE

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+Copyright (C) 2014 Chef Software, Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

README.md

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+# helperdemo cookbook
+
+# Requirements
+
+# Usage
+
+# Attributes
+
+# Recipes
+
+# Author
+
+Author:: Chef Software, Inc. (<jdunn@getchef.com>)

Thorfile

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+# encoding: utf-8
+
+require 'bundler'
+require 'bundler/setup'
+require 'berkshelf/thor'
+
+begin
+  require 'kitchen/thor_tasks'
+  Kitchen::ThorTasks.new
+rescue LoadError
+  puts ">>>>> Kitchen gem not loaded, omitting tasks" unless ENV['CI']
+end

Vagrantfile

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+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+Vagrant.configure("2") do |config|
+  # All Vagrant configuration is done here. The most common configuration
+  # options are documented and commented below. For a complete reference,
+  # please see the online documentation at vagrantup.com.
+
+  config.vm.hostname = "helperdemo-berkshelf"
+
+  # Every Vagrant virtual environment requires a box to build off of.
+  config.vm.box = "opscode_centos-6.4_chef-11.6.2"
+
+  # The url from where the 'config.vm.box' box will be fetched if it
+  # doesn't already exist on the user's system.
+  config.vm.box_url = "https://opscode-vm-bento.s3.amazonaws.com/vagrant/virtualbox/opscode_centos-6.4_chef-11.6.2.box"
+
+  # Assign this VM to a host-only network IP, allowing you to access it
+  # via the IP. Host-only networks can talk to the host machine as well as
+  # any other machines on the same network, but cannot be accessed (through this
+  # network interface) by any external networks.
+  config.vm.network :private_network, ip: "192.168.68.4"
+
+  # Create a public network, which generally matched to bridged network.
+  # Bridged networks make the machine appear as another physical device on
+  # your network.
+
+  # config.vm.network :public_network
+
+  # Create a forwarded port mapping which allows access to a specific port
+  # within the machine from a port on the host machine. In the example below,
+  # accessing "localhost:8080" will access port 80 on the guest machine.
+
+  # Share an additional folder to the guest VM. The first argument is
+  # the path on the host to the actual folder. The second argument is
+  # the path on the guest to mount the folder. And the optional third
+  # argument is a set of non-required options.
+  # config.vm.synced_folder "../data", "/vagrant_data"
+
+  # Provider-specific configuration so you can fine-tune various
+  # backing providers for Vagrant. These expose provider-specific options.
+  # Example for VirtualBox:
+  #
+  # config.vm.provider :virtualbox do |vb|
+  #   # Don't boot with headless mode
+  #   vb.gui = true
+  #
+  #   # Use VBoxManage to customize the VM. For example to change memory:
+  #   vb.customize ["modifyvm", :id, "--memory", "1024"]
+  # end
+  #
+  # View the documentation for the provider you're using for more
+  # information on available options.
+
+  config.ssh.max_tries = 40
+  config.ssh.timeout   = 120
+
+  # The path to the Berksfile to use with Vagrant Berkshelf
+  # config.berkshelf.berksfile_path = "./Berksfile"
+
+  # Enabling the Berkshelf plugin. To enable this globally, add this configuration
+  # option to your ~/.vagrant.d/Vagrantfile file
+  config.berkshelf.enabled = true
+
+  # An array of symbols representing groups of cookbook described in the Vagrantfile
+  # to exclusively install and copy to Vagrant's shelf.
+  # config.berkshelf.only = []
+
+  # An array of symbols representing groups of cookbook described in the Vagrantfile
+  # to skip installing and copying to Vagrant's shelf.
+  # config.berkshelf.except = []
+
+  config.vm.provision :chef_solo do |chef|
+    chef.json = {
+      :mysql => {
+        :server_root_password => 'rootpass',
+        :server_debian_password => 'debpass',
+        :server_repl_password => 'replpass'
+      }
+    }
+
+    chef.run_list = [
+        "recipe[helperdemo::default]"
+    ]
+  end
+end

chefignore

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+# Put files/directories that should be ignored in this file when uploading
+# or sharing to the community site.
+# Lines that start with '# ' are comments.
+
+# OS generated files #
+######################
+.DS_Store
+Icon?
+nohup.out
+ehthumbs.db
+Thumbs.db
+
+# SASS #
+########
+.sass-cache
+
+# EDITORS #
+###########
+\#*
+.#*
+*~
+*.sw[a-z]
+*.bak
+REVISION
+TAGS*
+tmtags
+*_flymake.*
+*_flymake
+*.tmproj
+.project
+.settings
+mkmf.log
+
+## COMPILED ##
+##############
+a.out
+*.o
+*.pyc
+*.so
+*.com
+*.class
+*.dll
+*.exe
+*/rdoc/
+
+# Testing #
+###########
+.watchr
+.rspec
+spec/*
+spec/fixtures/*
+test/*
+features/*
+Guardfile
+Procfile
+
+# SCM #
+#######
+.git
+*/.git
+.gitignore
+.gitmodules
+.gitconfig
+.gitattributes
+.svn
+*/.bzr/*
+*/.hg/*
+*/.svn/*
+
+# Berkshelf #
+#############
+Berksfile
+Berksfile.lock
+cookbooks/*
+tmp
+
+# Cookbooks #
+#############
+CONTRIBUTING
+CHANGELOG*
+
+# Strainer #
+############
+Colanderfile
+Strainerfile
+.colander
+.strainer
+
+# Vagrant #
+###########
+.vagrant
+Vagrantfile
+
+# Travis #
+##########
+.travis.yml

libraries/demo_helper.rb

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+module Demo
+  module Helper
+
+    include Chef::Mixin::ShellOut
+
+    def has_bacon?
+      cmd = shell_out!("getent passwd bacon", {:returns => [0,2]})
+      cmd.stderr.empty? && (cmd.stdout =~ /^bacon/)
+    end
+  end
+end

metadata.rb

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+name             'helperdemo'
+maintainer       'Chef Software, Inc.'
+maintainer_email 'jdunn@getchef.com'
+license          'Apache 2.0'
+description      'Installs/Configures helperdemo'
+long_description IO.read(File.join(File.dirname(__FILE__), 'README.md'))
+version          '0.1.0'
+

recipes/default.rb

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+#
+# Cookbook Name:: helperdemo
+# Recipe:: default
+#
+# Copyright (C) 2014 Chef Software, Inc.
+# 
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# 
+#    http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+Chef::Resource::User.send(:include, Demo::Helper)
+
+user 'jdunn' do
+  action :create
+  only_if { has_bacon? }
+end

spec/spec_helper.rb

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+require 'chefspec'
+# Require all our libraries
+Dir['libraries/*.rb'].each { |f| require File.expand_path(f) }

spec/unit/helper_spec.rb

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+require 'spec_helper'
+
+describe Demo::Helper do
+  describe '#has_bacon?' do
+    let(:shellout) { double(run_command: nil, error!: nil, stdout: '', stderr: double(empty?: true)) }
+    let(:dummy_class) { Class.new { include Demo::Helper } }
+
+    before { Mixlib::ShellOut.stub(:new).and_return(shellout) }
+
+    it 'builds the correct command' do
+      expect(Mixlib::ShellOut).to receive(:new).with('getent passwd bacon', {:returns=>[0, 2]})
+      expect(dummy_class.new.has_bacon?).to be_false
+    end
+
+    context 'without bacon' do
+      let(:shellout) { double(run_command: nil, error!: nil, stdout: '', stderr: double(empty?: true)) }
+      before { Mixlib::ShellOut.stub(:new).and_return(shellout) }
+
+      it 'says there is no bacon' do
+        expect(dummy_class.new.has_bacon?).to be_false
+      end
+    end
+
+    context 'with bacon' do
+      let(:shellout) { double(run_command: nil, error!: nil, stdout: 'bacon', stderr: double(empty?: true)) }
+      before { Mixlib::ShellOut.stub(:new).and_return(shellout) }
+
+      it 'says there is bacon' do
+        expect(dummy_class.new.has_bacon?).to be_true
+      end
+    end
+  end
+end