god config

gistfile1.txt

# == God config file
# http://god.rubyforge.org/
# Author: Gump
#
# fixed thin ports <michael@glauche.de>
#
# Config file for god that configures watches for each instance of a thin server for
# each thin configuration file found in /etc/thin.

require 'yaml'

config_path = "/home/your_holder"

Dir[config_path + "/*.yml"].each do |file|
  config = YAML.load_file(file)
  num_servers = config["servers"] ||= 1
  for i in 0...num_servers
    number = config['socket'] ? i : (config['port'] + i)
    God.watch do |w|
      w.group = "thin-" + File.basename(file, ".yml")
      port = number#config["port"] + i

      w.name = w.group + "-#{port}"

      w.interval = 30.seconds

      w.uid = config["user"]
      w.gid = config["group"]

      w.start = "thin start -C #{file} -o #{port}"
      w.start_grace = 10.seconds

      w.stop = "thin stop -C #{file} -o #{port}"
      w.stop_grace = 10.seconds

      w.restart = "thin restart -C #{file} -o #{port}"

      pid_path = config["chdir"] + "/" + config["pid"]
      ext = File.extname(pid_path)

      w.pid_file = pid_path.gsub(/#{ext}$/, ".#{port}#{ext}")

      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 = 500.megabytes
          c.times = [3,5] # 3 out of 5 intervals
        end

        restart.condition(:cpu_usage) do |c|
          c.above = 70.percent
          c.times = 5
        end
      end

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