[1308] in athena10
Restarting daemons inside the login chroots
daemon@ATHENA.MIT.EDU (Evan Broder)
Thu Mar 5 20:55:08 2009
Message-ID: <49B08239.6060404@mit.edu>
Date: Thu, 05 Mar 2009 20:54:01 -0500
From: Evan Broder <broder@MIT.EDU>
MIME-Version: 1.0
To: debathena@mit.edu
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
I've written /mit/broder/Public/debathena-chroot-daemons.patch as a
patch to debathena-reactivate which I think should restart a provided
list of daemons within the chroot, and also keep the auto-updater from
restarting them outside of the chroot during a login session. For right
now, that list of daemons is just "cups"
Some implementational tricks:
- The cups package was renamed sometime between Hardy and Intrepid from
cupsys to cups. This means that we have to look for both startup
scripts, and not error out if a script isn't found.
- We need a policy-rc.d script both inside and outside the chroot. The
one inside the chroot /only/ allows cups to start and stop, and the one
outside the chroot allows /anything but/ cups to start and stop. The
logic currently prevents daemons from being invoked "out-of-runlevel",
as documented in
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=452645, although I'm
not actually sure if that logic is necessary.
I haven't tested if it'll run at all, let alone if all of the logic is
right, but I think it is. I'm not sure when I'll next be at a cluster
machine and able to test, so if someone else has a chance, I'd
appreciated it if they could try the new script out.
When (fixed as necessary and) applied, this should close off ATN-37. I'm
also hoping it will help with ATN-43, but that seems kind of unlikely.
- Evan
