gistfile1.rb

RAILS_ROOT = "/home/deploy/public_html/rm/current"

5.times do |num|
  God.watch do |w|
    w.name = "dj-#{num}"
    w.group = 'dj'
    w.interval = 30.seconds
    if num == 0
      command = "rake RAILS_ENV=production MIN_PRIORITY=0 -f #{RAILS_ROOT}/Rakefile jobs:work"
    else
      command = "rake RAILS_ENV=production -f #{RAILS_ROOT}/Rakefile jobs:work"
    end
    w.start = command

    w.uid = 'deploy'
    w.gid = 'deploy'

    # retart if memory gets too high
    w.transition(:up, :restart) do |on|
      on.condition(:memory_usage) do |c|
        c.above = 180.megabytes
        c.times = 2
      end
    end

    # determine the state on startup
    w.transition(:init, { true => :up, false => :start }) do |on|
      on.condition(:process_running) do |c|
        c.running = true
      end
    end

    # determine when process has finished starting
    w.transition([:start, :restart], :up) do |on|
      on.condition(:process_running) do |c|
        c.running = true
        c.interval = 5.seconds
      end

      # failsafe
      on.condition(:tries) do |c|
        c.times = 5
        c.transition = :start
        c.interval = 5.seconds
      end
    end

    # start if process is not running
    w.transition(:up, :start) do |on|
      on.condition(:process_running) do |c|
        c.running = false
      end
    end
  end
end