Report abuse


			
MINIONS = [
  { :rails_root => "/home/mycoolapp/staging/current",
    :mongrel_ports => [4001,4002,4003,4004,4005],
    :uid => 'mycoolapp',
    :gid => 'mycoolapp',
    :pid_path => '/home/mycoolapp/staging/shared/tmp/pids' }
]

MINIONS.each do |minion|
  minion[:mongrel_ports].each do |port|
    God.watch do |w|
      w.name = "mongrel-#{port}"
      w.uid = minion[:uid]
      w.gid = minion[:gid]
      w.interval = 30.seconds # default      
      w.start = "mongrel_rails start -c #{minion[:rails_root]} -p #{port} \
        -P #{minion[:pid_path]}/mongrel.#{port}.pid -e production -d"
      w.stop = "mongrel_rails stop -P #{minion[:pid_path]}/mongrel.#{port}.pid"
      w.restart = "mongrel_rails restart -P #{minion[:pid_path]}/mongrel.#{port}.pid"
      w.start_grace = 10.seconds
      w.restart_grace = 10.seconds
      w.pid_file = "#{minion[:pid_path]}/mongrel.#{port}.pid"

      w.behavior(:clean_pid_file)

      w.start_if do |start|
        start.condition(:process_running) do |c|
          c.interval = 5.seconds
          c.running = false
        end
      end

      w.restart_if do |restart|
        restart.condition(:memory_usage) do |c|
          c.above = 150.megabytes
          c.times = [3, 5] # 3 out of 5 intervals
        end

        restart.condition(:cpu_usage) do |c|
          c.above = 50.percent
          c.times = 5
        end
      end

      # lifecycle
      w.lifecycle do |on|
        on.condition(:flapping) do |c|
          c.to_state = [:start, :restart]
          c.times = 5
          c.within = 5.minute
          c.transition = :unmonitored
          c.retry_in = 10.minutes
          c.retry_times = 5
          c.retry_within = 2.hours
        end
      end
    end
  end
end