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#!/bin/bash
#
# launcher script for qemu-kvm
#
# machines are sourced from a file which defines functions, each
# specifying options for the particular VM, for example:
#
# vm_beatbox() {
# net+=",mac=de:ad:be:ef:00:01"
# cdrom="-cdrom $isoroot/archlinux-2011.05.08-core-x86_64.iso -boot d"
#
# opts=(-nographic)
# drives=(
# "-drive file=$imgroot/beatbox.1.qcow2,if=virtio"
# "-drive file=$imgroot/beatbox.2.qcow2,if=virtio"
# )
# }
#
# If unspecified:
# ${drives[@]}: will match all of "$imgroot/$vm".*.qcow2
#
shopt -s nullglob
### Paths ################################
#declare config_root=/mnt/levant/nfs/tmp/Florian/qemu
declare config_root=/mnt/data/qemu
declare -r machines=$config_root/machines
declare isoroot=$config_root
declare imgroot=$config_root
### Defaults #############################
declare mem="-m 1024"
declare cpus="-cpu host -smp 4"
#declare net="-net vde -net nic,model=virtio"
declare net="-netdev bridge,br=br-qemu,id=mynet0 -device virtio-net,netdev=mynet0"
cdrom+=("-boot" "d")
#declare cdrom="-cdrom $isoroot/archlinux-2012.11.01-dual.iso -boot d"
for iso in "$isoroot/"archlinux-*.iso; do
cdrom+=("-cdrom" "$iso")
done
### Launcher #############################
. "$machines"
while getopts 'c' flag; do
case $flag in
c) usecdrom=true ;;
esac
done
shift $(( OPTIND - 1 ))
if [[ -z $1 ]]; then
printf 'Available VMs:\n'
compgen -A function -- vm_ | sed 's/^vm_/ /'
exit 0
fi
vm=$1; shift
if ! type -t vm_$vm >/dev/null; then
printf 'unknown VM: %s\n' "$vm"
exit 1
fi
vm_$vm
# default drives
if (( ${#drives[*]} == 0 )); then
for drive in "$imgroot/$vm".*.raw; do
drives+=("-drive" "file=$drive,if=virtio,format=raw")
done
for drive in "$imgroot/$vm".*.qcow2; do
drives+=("-drive" "file=$drive,if=virtio")
done
fi
exec qemu-system-x86_64 --machine type=pc,accel=kvm "${opts[@]}" $cpus $mem "${drives[@]}" $net ${usecdrom:+${cdrom[@]}} "$@"
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