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Re: [libvirt-users] monitor option in libvirt ?




because I wold like to do this:

1) start qemu-kvm and redirect the monitor to a named pipe called let's say my.pipe

2) write into the named pipe with a script when I want to take a snapshot, somthing like:

   echo "savevm mysnapshot">my.pipe


bascally I need to be able to access the monitor to issue a savevm command because I want to take
a snapshot of my qcow2 images.

How could I do it otherwise ?

thank you

Rick






Daniel P. Berrange wrote:
On Tue, Jan 26, 2010 at 01:52:13PM +0100, Riccardo Veraldi wrote:
Hello,

I woudl liek to start qemu-kvm with -monitor myfile.pipe options
instead of default -monitor pty

Anyway I have not found any way to tell libvirt (using virsh) that I want to set a specific
-monitor option to the qemu-kvm command line.
How can I do this ?

libvirt controls the monitor interface so it can manage the guest while it
is running.  As such we don't give users access to it, since having two
different things changing the running guest state is a recipe for trouble

Why do you need to acess the monitor directly ?  Our goal is to expose
APIs for any monitor command that users would need to use in administrative
tasks

Regards,
Daniel


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