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Re: [libvirt-users] Updating Multiple VM Guests?



On 11/10/2010 01:20 PM, Kenneth Stailey wrote:

--- On Wed, 11/10/10, Laine Stump<laine laine org>  wrote:

From: Laine Stump<laine laine org>
Subject: Re: [libvirt-users] Updating Multiple VM Guests?
To: libvirt-users redhat com
Date: Wednesday, November 10, 2010, 12:41 PM
On 11/10/2010 11:59 AM, Kenneth
Stailey wrote:
Hi,

The libvirt.org FAQ says that "virsh edit" is the
recommended way of updating the libvirt xml.
If a change has to be made to many VMs "virsh edit" is
tedious, time-consuming and likely to be prone to careless
errors.
Is there a command line approach to updating multiple
VMs?

How about:

    for g in guest1 guest2 guest3 guest4; do
       virsh dumpxml --inactive $g
/tmp/g.xml
       # do whatever sed/etc commands you
want here
       virsh define /tmp/g.xml
   done

(or something like that, anyway :-)
The "sed, etc." is a mistake since XML does not have guaranteed format.

I suppose XMLStarlet could be used.

http://xmlstar.sourceforge.net/

Yeah. sed is just my general purpose "replacement for editing by hand" token ;-)

Something that is xml-aware would obviously be a much better choice.


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