[Xen-users] Running scripts on domU create/shutdown?

[Steve Kemp <steve@xxxxxxxxxxxx>]

Hi,

  I'm working on the early design stages of a multi-dom0 xen
 monitoring tool, (to replace my previous attempt "Argo").

  One thing that would be very useful for a monitoring tool
 would be the ability to run a script, or scripts, upon
 dom0 events:

    domU creation
    domU shutdown

  Ideally /etc/xen/events/domU-up.d/* + domU-down.d/* or
 similar.  (Running every executable the appropriate directory
 with a single argument of the domain name would be sufficient
 for my purposes.)

  I've managed to write simple behavior for this by hacking
 /etc/xen/scripts/vif-common.sh.  I can detect startup/shutdown
 by looking at the first command line argument.

  From there I can examine $XENBUS_PATH to get the ID of the
 domain which is being created/destroyed - however there
 isn't a simple mechanism that I've seen to get the domain
 name.

  So two questions:

    1.  Is there a simple method to get the domain name
       from the ID, short of parsing "xm list N"?

    2.  Would this kind of startup/shutdown hook be useful
       to others, and if so would a patch be applied?  (I'm
       happy to submit my code.)

Steve
-- 
http://www.steve.org.uk/

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users