serverspecの高度なヒント ref: http://qiita.com/ando-masaki/items/0269daa47fe7ffb4c723

file0.txt

|-- Rakefile
`-- spec
    |-- spec_helper.rb
    `-- www.example.jp
        `-- httpd_spec.rb

file1.txt

|-- Rakefile
`-- spec
    |-- app
    |   `-- ruby_spec.rb
    |-- base
    |   `-- users_and_groups_spec.rb
    |-- db
    |   `-- mysql_spec.rb
    |-- proxy
    |   `-- nginx_spec.rb
    `-- spec_helper.rb

file10.txt

require 'spec_helper'

describe file('/etc/my.cnf') do
  it { should contain "server-id = #{property[:server_id]}" }
end

file11.txt

RSpec.configure do |c|
  c.path = '/sbin:/usr/sbin'
  ...

file12.txt

describe package('jekyll') do
  let(:path) { '/usr/local/rbenv/shims' }
  it { should be_installed.by('gem') }
end

file13.txt

describe service('httpd') do
  let(:pre_command) { 'source ~/.zshrc' }
  it { should be_running }
end

file4.txt

$ rake serverspec:サブドメイン
例）
$ rake serverspec:proxy001
$ rake serverspec:proxy002
$ rake serverspec:app001
$ rake serverspec:app002
$ rake serverspec:db001
$ rake serverspec:db002

file4.yml

db001.example.jp:
  :roles:
    - base
    - db
  :server_id: 101
db002.example.jp:
  :roles:
    - base
    - db
  :server_id: 102

file5.txt

$ rake serverspec:all

file6.txt

$ rake serverspec:all -t

file7.txt

require 'spec_helper'

describe file('/etc/my.cnf') do
  it { should contain "server-id = #{property[:server_id]}" }
end

file7.yml

db001.example.jp:
  :roles:
    - base
    - db
  :server_id: 101
db002.example.jp:
  :roles:
    - base
    - db
  :server_id: 102

file8.txt

RSpec.configure do |c|
  c.path = '/sbin:/usr/sbin'
  ...

file9.txt

describe package('jekyll') do
  let(:path) { '/usr/local/rbenv/shims' }
  it { should be_installed.by('gem') }
end

Rakefile

require 'rake'
require 'rspec/core/rake_task'
require 'yaml'

properties = YAML.load_file('properties.yml')

desc "Run serverspec to all hosts"
task :serverspec => 'serverspec:all'

namespace :serverspec do
  task :all => properties.keys.map {|key| 'serverspec:' + key.split('.')[0] }
  properties.keys.each do |key|
    desc "Run serverspec to #{key}"
    RSpec::Core::RakeTask.new(key.split('.')[0].to_sym) do |t|
      ENV['TARGET_HOST'] = key
      t.pattern = 'spec/{' + properties[key][:roles].join(',') + '}/*_spec.rb'
    end
  end
end

spec_helper.rb

require 'serverspec'
require 'pathname'
require 'net/ssh'
require 'yaml'

include Serverspec::Helper::Ssh
include Serverspec::Helper::DetectOS
include Serverspec::Helper::Properties

properties = YAML.load_file('properties.yml')

RSpec.configure do |c|
  c.host  = ENV['TARGET_HOST']
  set_property properties[c.host]
  options = Net::SSH::Config.for(c.host)
  user    = options[:user] || Etc.getlogin
  c.ssh   = Net::SSH.start(c.host, user, options)
  c.os    = backend.check_os
end