Message from discussion Problems with God monitoring backgroundrb?

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From: Tim Carey-Smith <g...@spork.in>
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Subject: Re: Problems with God monitoring backgroundrb?
Date: Sun, 2 Mar 2008 01:14:33 +1300
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On 1/03/2008, at 10:32 AM, James H. wrote:

> Did you ever get God working with BDRb?  I'm working on
> building a test site right now for an app that uses BDRb and I was
> looking around for advice on the matter.
If you are using any self-daemonizing application, you should specify  
the pid-file.

Here is a watch and script I use inside a rails app.
It is using the 'daemons' gem and works wonders :)

Cheers,
Tim

## START WATCH ##
God.watch do |w|
   base_path = "/home/deploy/foobar"
   w.name = "foobar-daemon"
   w.uid = "deploy"
   w.gid = "nogroup"
   w.pid_file = "#{base_path}/shared/log/foobar.pid"
   w.interval = 30.seconds
   w.start   = "#{base_path}/current/script/daemon start    --  
production"
   w.stop    = "#{base_path}/current/script/daemon stop     --  
production"
   w.restart = "#{base_path}/current/script/daemon restart  --  
production"
   w.start_grace = 10.seconds
   w.restart_grace = 10.seconds

   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
end
## END WATCH ##

## START DAEMON ##
#!/usr/bin/env ruby
require 'rubygems'
require 'daemons'

code = File.dirname(__FILE__) + "/../lib/scripts/daemon.rb"
options = {
   :app_name   => "foobar-daemon",
   :ARGV       => ARGV,
   :dir_mode   => :normal,
   :dir        => File.dirname(__FILE__) + '/../log',
   :multiple   => false,
   :backtrace  => true,
   :monitor    => false
}
Daemons.run(code, options)
## END DAEMON ##