God supervisor example config for node.js app

gistfile1.rb

#!/usr/bin/env ruby

God.watch do |w|
    w.group         = "hubot_group"
    w.name          = "hubot"
    w.interval      = 1.seconds
    w.env           = { 'NODE_ENV' => 'production'}
    w.start         = "node ..."
    w.start_grace   = 5.seconds
    w.restart_grace = 5.seconds
    w.log           = "/var/www/..."
    w.keepalive(:memory_max => 1024.megabytes, :cpu_max => 80.percent)
    

    # 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