=======================================================
$ git clone https://github.com/dprince/kytoon ; cd kytoon
=======================================================
$ cat ~/.kytoon.conf 
group_type: libvirt
libvirt_use_sudo: True
DEBUG: True
=======================================================
[kashyap@virthost1 kytoon]$ cat config/f18.json 
{
    "name": "Fedora",
    "servers": [
        {
            "hostname": "f18_devstack",
            "memory": "4",
            "gateway": "true",
            "original_xml": "config/f18.xml",
            "create_cow": "true"
        }
    ]
}

[kashyap@virthost1 kytoon]$ 
=======================================================
[kashyap@virthost1 kytoon]$ DEBUG=true kytoon create --group-config=config/f18.json 
Creating instance: f18_devstack
+ '[' -n config/f18.xml ']'
+ ORIGIN='--original-xml config/f18.xml'
+ '[' -n true ']'
+ sudo virt-clone --connect=qemu:///system --name 1369996778.1541948_f18_devstack --file /var/lib/libvirt/images/1369996778.1541948_f18_devstack.img --force --original-xml config/f18.xml --preserve-data
++ sudo qemu-img info /home/kashyap/vmimages/f17vm1.qcow2
++ tr -d ' '
++ cut -f2 -d :
++ grep '^file format:'
+ img_fmt=qcow2
+ sudo qemu-img create -f qcow2 -o backing_file=/home/kashyap/vmimages/f17vm1.qcow2,backing_fmt=qcow2 /var/lib/libvirt/images/1369996778.1541948_f18_devstack.img
+ sudo guestfish -a /var/lib/libvirt/images/1369996778.1541948_f18_devstack.img -i
+ '[' 0 -eq 0 ']'
+ '[' -n '' ']'
+ sudo virsh --connect=qemu:///system setmaxmem 1369996778.1541948_f18_devstack 4194304
+ sudo virsh --connect=qemu:///system start 1369996778.1541948_f18_devstack
+ sudo virsh --connect=qemu:///system setmem 1369996778.1541948_f18_devstack 4194304
Failed to lookup network name for f18_devstack
=======================================================
$ sudo virsh list
 Id    Name                           State
----------------------------------------------------
 3     1369994350.027558_f18_devstack running

$ 
=======================================================
[kashyap@virthost1 kytoon]$ sudo virsh console 1369996778.1541948_f18_devstack
Connected to domain 1369996778.1541948_f18_devstack
Escape character is ^]

Fedora release 17 (Beefy Miracle)
Kernel 3.3.4-5.fc17.x86_64 on an x86_64 (ttyS0)

(none) login: root
Password: 
Last login: Thu Nov  8 14:44:16 on ttyS0
[root@(none) ~]# 
=======================================================