Kvmtools

kvm-admin

What it does? It can do the follow action: show, boot, shutdown, status and monitor.

Howto use it

Example, to get monitor's help:

kvm-admin my_guest monitor help

To get the command printed:

kvm-admin my_guest show

Boot a guest:

kvm-admin my_guest boot

Featurs

It's add a bridge to a given bridge from guest configuration file.

The bridge(s) have to exists. There can individual bridges on the system and each guest can assign to different bridge. No need to add many script files and scriptdown files. This is set automatic.

Configuration File Format

The guest configuration file have to placed in the directory 'domains'. The format is taken 1:1 from the command line.

To use an qemu-kvm option which don't have a parameter, have to use:

 variable = enabled

Global configuration varibales, which all guest should effected, can write in 'config/kvm.cfg' file.

Exampe:

 # have to set the path to qemu-kvm executable
 qemu-kvm = /usr/bin/kvm

 dammonize = enabled
 localtime = enabled

Example format:

 name = my_guest
 smp = 2
 m = 1024
 # first drive
 drive = file:/path_to_image_or_lvm,[and other options]
 # second drive
 drive = file:/path_to_image_or_lvm,[and other options]
 cdrom = my_installer.iso
 daemonize = enabled
 localtime = enabled

Only one exception exist. This is only for the '-net tap' option. There have to add an option for the bridge.

An example for tap option when using '-net nic':

 # first network interface
 net = nic,[and other options]
 net = tap,ifname=my_iface_one,bridge=br0
 # second network interface
 net = nic,[and other options]
 net = tap,ifname=my_iface_two,bridge=br1

Download

It can dowloaded on the mercurial repository on:

via Webbrowser:

 http://hg.kasten-edv.de/kvm-tools (klick on bzip,gzip or zip link)

via mercurial:

 hg clone http://hg.kasten-edv.de/kvm-tools
 hg branches (to get a list)
 hg update branch_nummer_to_latest_version

Installation

Please read the README for further information.

Security

To run the kvm process under a unprivileged user.

Add an user 'kvm' for example and add this in the guest configuration file.

 runas = kvm

For each guest can assign an individual user.

When all guest should run as the user 'kvm' then add this in the global configurations file 'config/kvm.cfg'

 runas = kvm

When is set in 'config/kvm.cfg' the guest configuration file does override it, when there also is set.

 runas = kvm_one

Then this process is running as user 'kvm_one'

Fixes

The ordinary fixes :)