Chad's configuration DSL Exercise - My attempt.

gistfile1.rb

class Configuration
  attr_accessor :tail_logs, :max_connections, :admin_password, :app_server
  class AppServer
    attr_accessor :port, :admin_password
  end

  def initialize
    @app_server = AppServer.new
  end

  def app_server
    if block_given?
      yield @app_server
    else
      @app_server
    end
  end
end

class Object
  def configure
    config = Configuration.new
    yield config
    config
  end
end


configuration = configure do |config|  
  config.tail_logs = true  
  config.max_connections = 55  
  config.admin_password = 'secret'  
  config.app_server do |app_server_config|  
    app_server_config.port = 8808  
    app_server_config.admin_password = config.admin_password  
  end  
end  
  
puts configuration.class # => Configuration  
puts configuration.tail_logs # => true  
puts configuration.app_server.admin_password # => 'secret'