Re: Running scripts at domain creation/destruction?

[Anthony Liguori <aliguori@us.ibm.com>]

Hi John,

John Byrne wrote:

>
> Are there any hooks for running generic scripts/apps in domain 0 when 
> a domain is created or destroyed? I don't see any such thing in 
> xend-config.sxp.

Since xend configuration files are just python scripts, you could add 
something to the config files.

> Taking it back a step, my desire is to have something in domain 0 
> export the xen console via VNC. The reason for wanting to be available 
> via VNC, is that we expect Anthony Ligouri's frame buffer work (or 
> something) to eventually provide a VNC virtual console for 
> para-virtualized domains. If and when that happens, our tool for 
> viewing consoles remotely will continue to work.
>
> Assuming that this is at all viable, does any have a piece of code for 
> libvncserver that might be useful as the interface between xenconsoled 
> and VNC?

There are a few VNC terminal programs--none are very good (including my 
own).  I've been exploring this area quite a bit.  This is a tough area 
b/c it takes a lot of work to be a full terminal emulator.

An interesting approach would be to use vncserver to create a VNC 
session with the resolution of an xterm and setup the vncrc file to only 
start an X term positioned at 0, 0.  If you don't start a window 
manager, and change the background/foreground color, it should give you 
what you're looking for.

Regards,

Anthony Liguori

> Thanks,
>
> John Byrne
>
>
>
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