Rails - Mar 2007 - [OT] Starting Mongrel on Mac: Launchd or Crontab?

I have some Rails apps I use on my Mac to do brutally stupid stuff like track
time and activities. They''re always running, but each time I restart, I
(duh) have to restart the Mongrels.

Well, I know better than that, right? So I dug around in Google to find out
how people are getting Mongrels started using Launchd. There are some
detailed posts, but none of them seemed to work. My hack-o-the-day was to
use crontab, and I''m not certain that''s so bad, but could
someone tell me:
How do you use Launchd to get Mongrels running? Do you categorize them as
Agents or Daemons? Even though these are stable and just work, what if I
have to kill one off? Will I confuse anything or can I just use kill as
usual (I''m guessing that Mongrel''s stop and restart commands
won''t work).

Anybody else doing this?

Thanks
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launchd is, in theory, the present and future of startup launching on  
Mac OS X.  That said, the old methods still exist, are fairly simple  
to set up, and are a lot easier to debug.  You might try a  
StartupItem (look in /Library/StartupItems) instead.

-faisal



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> I have some Rails apps I use on my Mac to do brutally stupid stuff like
track
> time and activities. They''re always running, but each time I
restart, I
> (duh) have to restart the Mongrels.
>
> Well, I know better than that, right? So I dug around in Google to find out
> how people are getting Mongrels started using Launchd. There are some
> detailed posts, but none of them seemed to work. My hack-o-the-day was to
> use crontab, and I''m not certain that''s so bad, but could
someone tell me:
> How do you use Launchd to get Mongrels running? Do you categorize them as
> Agents or Daemons? Even though these are stable and just work, what if I
> have to kill one off? Will I confuse anything or can I just use kill as
> usual (I''m guessing that Mongrel''s stop and restart
commands won''t work).
>
> Anybody else doing this?
I don''t have mine always running so I wrote a widget to control them...

http://blog.pjkh.com/articles/2006/12/20/mongrel-rails-dashboard-widget

Worked great for me until I switched to litespeed.  I switched because 
litespeed will shut down the rails processes if they aren''t used after
a
period of time freeing up ram for other things... I had a lot of apps, but 
didn''t use them very often, which sounds a little different than your 
scenerio so it might not make as much sense.

If you try litespeed keep this in mind as well:

http://blog.pjkh.com/articles/2007/03/27/litespeed-osx-and-disk-scratching

-philip

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