Serverspecの効果的活用に向けたTips

ホスト毎にディレクトリを作成して管理する場合の例

├ Rakefile
└ spec
　├ server-01
　│　├ dns_spec.rb
　│　├ httpd_spec.rb
　│　├ security_spec.rb
　│　├ ntp_spec.rb
　│　└ php_spec.rb
　├ server-02
　│　├ dns_spec.rb
　│　├ security_spec.rb
　│　├ mysql_spec.rb
　│　└ ntp_spec.rb
　└ spec_helper.rb

役割別にディレクトリを作成して管理する場合の例

├ Rakefile
└ spec
　├ base
　│　├ dns_spec.rb
　│　├ security_spec.rb
　│　└ ntp_spec.rb
　├ db
　│　└ mysql_spec.rb
　├ spec_helper.rb
　└ web
　　　├ httpd_spec.rb
　　　└ php_spec.rb

hosts.yml

server-01:
  :roles:
    - base
    - web
server-02:
  :roles:
    - base
    - db

Rakefile

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

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

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

class ServerspecTask < RSpec::Core::RakeTask

  attr_accessor :target

  def spec_command
    cmd = super
    "env TARGET_HOST=#{target} #{cmd}"
  end

end

namespace :serverspec do
  desc "Run serverspec to all hosts (=spec)"
  task :all => hosts.keys.map {|host| 'serverspec:' + host }
  hosts.keys.each do |host|
    desc "Run serverspec to #{host}"
    ServerspecTask.new(host.to_sym) do |t|
      t.target = host
      t.pattern = 'spec/{' + hosts[host][:roles].join(',') + '}/*_spec.rb'
    end
  end
end

$ rake -T
rake serverspec:server-01  # Run serverspec to server-01
rake serverspec:server-02  # Run serverspec to server-02
rake serverspec:all             # Run serverspec to all hosts (=spec)
rake spec                       # Run serverspec to all hosts (=serverspec:all)

spec/spec_helper.rb

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

include SpecInfra::Helper::Ssh
include SpecInfra::Helper::DetectOS

RSpec.configure do |c|
  if ENV['ASK_SUDO_PASSWORD']
    require 'highline/import'
    c.sudo_password = ask("Enter sudo password: ") { |q| q.echo = false }
  else
    c.sudo_password = ENV['SUDO_PASSWORD']
  end
  c.host  = ENV['TARGET_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

$ rake serverspec:all ※hosts.ymlに書かれたすべてのホストに対してテスト実行する場合
$ rake serverspec:server-01 ※server-01に対してのみテスト実行する場合
$ rake serverspec:server-02 ※server-02に対してのみテスト実行する場合