Watch websocket_rails server with God

god.rb

RAILS_ROOT = File.expand_path('../', File.dirname(__FILE__))
RAILS_ENV = ENV['RAILS_ENV'] || 'production'

God.watch do |w|
  w.name = "websocket_rails"

  w.start = "cd #{RAILS_ROOT} && bundle exec rake websocket_rails:start_server"
  w.stop = "cd #{RAILS_ROOT} && bundle exec rake websocket_rails:stop_server"

  w.pid_file = "#{RAILS_ROOT}/tmp/pids/websocket_rails.pid"
  w.behavior(:clean_pid_file)

  # w.keepalive

  w.log = "#{RAILS_ROOT}/log/god.log"

  w.start_if do |start|
    start.condition(:process_running) do |c|
      c.interval = 30.seconds
      c.running = false
    end
  end

  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