gistfile1.rbx

ejabberdctl ||= "/usr/local/sbin/ejabberdctl"

God.watch do |w|
  w.name = "ejabberd"
  w.interval = 30.seconds # default      
  
  w.start = "#{ejabberdctl} start"
  w.stop = "#{ejabberdctl} stop"
  w.restart = "#{ejabberdctl} restart"
  
  # w.start = "/etc/init.d/ejabberd start"
  # w.stop = "/etc/init.d/ejabberd stop"
  # w.restart = "/etc/init.d/ejabberd restart"
  w.start_grace = 20.seconds
  w.restart_grace = 20.seconds
  # w.pid_file = "/usr/local/nginx/logs/nginx.pid"
    
  # w.behavior(:clean_pid_file)
  
  w.start_if do |start|
    start.condition(:process_running) do |c|
      c.interval = 60.seconds
      c.running = false
    end
  end

  w.restart_if do |restart|
    restart.condition(:memory_usage) do |c|
      c.above = 100.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.notify = "developers"      
      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