Custom Facter Fact: domain_available?

domain_available.rb

# Change the value of the `target` variable
require 'puppet'
require 'socket'
require 'timeout'

Facter.add("domain_available?") do
  confine :operatingsystem => :darwin
  setcode do

    class Ping
      def self.pingecho(host, timeout=5, port=80)
        begin
          timeout(timeout) do
            s = TCPSocket.new(host, port)
            s.close
          end
        rescue Errno::ECONNREFUSED
          return "false"
        rescue Timeout::Error, StandardError
          return "false"
        end
        return "true"
      end
    end

    target      = 'some.domain.com'
    timeout     = 7
    port        = 389
    max_timeout = 15

    begin
      Timeout::timeout(max_timeout) do
        Ping.pingecho target, timeout, port
      end
    rescue Timeout::Error
      return "false"
    end

  end
end