God script to keep apache alive

apache.god

APACHE_ROOT = 'path/to/apache'

def apache(location)
  File.join APACHE_ROOT, location
end

def apachectl(command)
  "#{apache 'bin/apachectl'} -k #{command}"
end


God.watch do |watch|
  watch.name = 'apache'
  watch.interval = 30.seconds
  watch.start = apachectl 'start'
  watch.stop = apachectl 'stop'
  watch.restart = apachectl 'graceful'
  watch.start_grace = 10.seconds
  watch.restart_grace = 10.seconds
  watch.pid_file = apache 'logs/httpd.pid' # path to pid file may be  '/var/run/httpd.pid'

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

After: http://blog.blenderbox.com/2008/03/11/monitoring-apache-with-god/