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[Xen-users] making automated console screenshots

To: Xen Users <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-users] making automated console screenshots
From: Florian Heigl <florian.heigl@xxxxxxxxx>
Date: Thu, 21 Apr 2011 13:06:21 +0200
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Hi,

has one of you implemented something that records the current VNC
console view periodically?

I'm thinking of the following setup:

- find out how to make a vnc session from cli that just snips one
picture and logs off
- do that every minute
- set linux systems to have the panic=60 commandline option
- if a VM goes to crashed or shutdown state, stop saving new pictures,
archive the last 5
and then when the box comes up again, they'll still be available for
debugging purposes.

This way I could have a console snap right next to the Xen VM
management (I used GPLHost DTC) for this.
It would help people to see the last console screens even after a VM
crashed, and ease up "searching for the right system" or anything
people
might want to do with it.

I had first thought about using netconsole to send the console
messages to a syslog server, but the screenshots pretty much win with
any end user.

Well, has anyone done stuff like this yet or is interested in working
on it with me?

Flo


-- 
the purpose of libvirt is to provide an abstraction layer hiding all
xen features added since 2006 until they were finally understood and
copied by the kvm devs.

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