Daemonize a Ruby process

Thursday, 15 December 2011 12:26

child-end-daemonize-open/dev/null-$stdout

Neat separation of responsibilities between fork/process stuff and actual app



  #!/usr/bin/ruby



  daemonize do

    worker = Resque::Worker.new(*queues)

    worker.work

  end



  def daemonize &block

    child = fork

    if child.nil? # is child

      $stdout.close

      $stdout = open("/dev/null")

      $stdin.close

      trap('HUP', 'IGNORE')

      block.call

    else # is parent

      Process.detach child

    end

  end