virt helper scripts

vmclone.sh

#!/bin/sh

if [ $# -eq 0 ]
then
    echo "Usage: vmclone orig-name [cloned-vm-name]"
    echo "If cloned-vm-name isn't provided '-clone' is appended to the original name."
    exit -1
fi

orig=$1

if [ $# -eq 2 ]
then
    name=$2
else
    name=$orig"-clone"
fi

virt-clone \
    --connect qemu:///system \
    --original $orig \
    --name $name \
    --file ~vladan/virt/images/${name}.qcow2

vminstall.sh

#!/bin/sh

function show_help {
cat << EOF
Usage: ${0##*/} [-m RAM_SIZE] [-d DISK_SIZE] [-t OS_TYPE] VM_NAME ISO_PATH

Install a VM in an image from a specified ISO file.

    -h            Display this help and exit
    -m RAM_SIZE   RAM size of the VM in MB (default is 2048)
    -d IMG_SIZE   Size of the image in GB (default is 20)
    -t OS_TYPE    Type of the os - debian, arch, fedora (default is debian7)

    VM_NAME       Name of the VM. The image is created from this name.
    ISO_PATH      Path to the installation media.
EOF
exit 0
}

if [ $# -eq 0 ]
then
    show_help
fi

image_dir=/home/vladan/virt/images


# A POSIX variable
OPTIND=1         # Reset in case getopts has been used previously in the shell.

# Initialize our own variables:
ram=2048
size=20
os='debian7'

while getopts ":h:m:n:d:t:i:" opt; do
    case "$opt" in
        h)
            show_help
            ;;
        m)
            ram=${OPTARG}
            ;;
        d)
            size=${OPTARG}
            ;;
        t)
            os=${OPTARG}
            ;;
        '?')
            show_help
            ;;
    esac
done

name=${@:$OPTIND:1}
iso=${@:$OPTIND+1:1}

shift $((OPTIND-1))
[ "$1" = "--" ] && shift

# check for missing postitional args
if [ -z "$name" ]; then echo "NAME IS EMPTY"; show_help; fi
if [ -z "$iso" ]; then echo "ISO IS EMPTY"; show_help; fi


image=${image_dir}/${name}.qcow2


if [ -f ${image} ];
then
    echo
    echo "Image file ${image} exists on filesystem, aborting!!!"
    echo
    while true; do
        read -p "Do you wish to remove it? [y/n] " yn
        case $yn in
            [Yy]* ) rm -f ${image} && exit;;
            [Nn]* ) exit;;
            * ) echo "Please answer yes or no.";;
        esac
    done
fi


qemu-img create ${image} -f qcow2 ${size}G


echo
echo "virt-install --name=${name} --arch=x86_64 --vcpus=1 --ram=${ram} --os-type=linux --os-variant=${os} --hvm --connect=qemu:///system --cdrom=${iso} --disk path=${image},size=${size} --accelerate --vnc --network bridge=virbr0 --noautoconsole --keymap=us"
echo


virt-install \
    --name=${name} \
    --arch=x86_64 \
    --vcpus=1 \
    --ram=${ram} \
    --os-type=linux \
    --os-variant=${os} \
    --hvm \
    --connect=qemu:///system \
    --cdrom=${iso} \
    --disk path=${image},size=${size} \
    --accelerate \
    --vnc \
    --network bridge=virbr0 \
    --noautoconsole \
    --keymap=us

vmip.sh

#!/bin/sh

name=$1

mac=$(virsh dumpxml $name | egrep -io '([0-9a-f]{2}:){5}[0-9a-f]{2}')
echo $(arp | grep $mac | cut -d " " -f 1)