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#!/bin/sh -e
#
# Copyright (C) 2007-2012 Canonical, Ltd.
# Author: Jamie Strandboge <jamie@canonical.com>
# License: GPLv3
#
ustconf="$HOME/.uqt-vm-tools.conf"
if [ -s "$ustconf" ]; then
. "$ustconf"
else
echo "Could not find '$ustconf'"
exit 1
fi
abort_if_root() {
if [ "$USER" = "root" ]; then
echo "You must not be root. Aborting"
exit 1
fi
}
vm_exists() {
if [ -z "$1" ]; then
exit 1
fi
vm="$1"
if virsh --connect ${vm_connect} list --all 2>/dev/null | grep -q " $vm " ; then
return 0
else
return 1
fi
}
vm_running() {
if [ -z "$1" ]; then
exit 1
fi
vm="$1"
if virsh --connect ${vm_connect} domstate "$vm" 2>/dev/null | grep -q "running" ; then
return 0
else
return 1
fi
}
get_disks() {
if [ -z "$1" ]; then
exit 1
fi
vm="$1"
found_disks=""
in_disk="no"
virsh --connect ${vm_connect} dumpxml "$vm" 2>/dev/null | while read line ; do
if echo "$line" | egrep -q '^<disk '; then
in_disk="yes"
continue
elif echo "$line" | egrep -q '^</devices>' ; then
echo $found_disks
break
elif [ "$in_disk" = "yes" ]; then
if echo "$line" | egrep -q "^<source file=.*\.iso'/>" ; then
# found an iso so skip it, otherwise vm-remove might remove
# your iso directory (owchy)
in_disk="no"
continue
elif echo "$line" | egrep -q '^<source file=' ; then
tmpdisk=`echo "$line" | cut -d "'" -f 2`
found_disks="$found_disks $tmpdisk"
in_disk="no"
fi
fi
done
}
# waits ARG2 seconds for a host to come up and returns the hostname
vm_wait() {
if [ -z "$1" ]; then
exit 1
fi
local vm="$1"
local timeout="$2"
if [ -z "$timeout" ]; then
timeout=100
fi
local quiet="$3"
# wait until the machine is running
local host=""
if [ -z "$quiet" ]; then
echo -n "Waiting for '$vm' to come up: " >&2
fi
for i in $(seq 1 $timeout) ; do
host=$(vm_ping "$vm" 2>/dev/null)
if [ -n "$host" ] ; then
if [ -z "$quiet" ]; then
echo " host is up" >&2
fi
echo "$host"
break
fi
if [ -z "$quiet" ]; then
echo -n "." >&2
fi
sleep 1
done
if [ -z "$host" ]; then
echo " timed out waiting for '$vm'" >&2
fi
}
# returns the hostname for a machine if it is up
vm_ping() {
m="$1"
if ! vm_exists $m ; then
echo "'$m' does not exist" >&2
return
fi
if ! vm_running $m ; then
echo "'$m' is not running" >&2
return
fi
avahi=".local"
if [ "$vm_host_use_avahi" = "no" ] || [ "$vm_host_use_avahi" = "NO" ]; then
avahi=""
fi
for suffix in '.' $avahi '' ; do
h=${m}${suffix}
if ping -c1 -w1 $h >/dev/null 2>&1 ;then
# Workaround recent lack of '-q' functionality in netcat-openbsd.
# See https://launchpad.net/bugs/590925 for details.
arg="-w1"
if LANG=C nc -q 2>&1 | grep -q 'requires an argument' ; then
arg="-q1"
fi
if nc $arg $h 22 </dev/null 2>/dev/null | grep -q ^SSH-2; then
echo "$h"
break
fi
fi
done
}
vm_get_machines_by_prefix() {
p="$1"
a="$2"
virsh --connect ${vm_connect} list --all 2>/dev/null | awk '{print $2}' | egrep "^$p.*$a$" | sort
}
vm_get_release_by_machine_name() {
m="$1"
for r in $vm_release_list ; do
echo "$m" | grep -q "$r" && {
echo "$r"
return
}
done
}
vm_can_snapshot() {
m="$1"
if ! vm_exists $m ; then
echo "'$m' does not exist" >&2
return 1
fi
disks=`get_disks $m`
if [ -z "$disks" ]; then
echo "Could not find any disks" >&2
return 1
fi
# iterate through the disks. If all disks have the pristine file, that
# means we can do snapshots.
for d in $disks ; do
real=`readlink -f "$d"`
if ! echo "$real" | egrep -q '.qcow2$' ; then
echo "File extension for '$real' is not 'qcow2'" >&2
return 1
fi
dir=`dirname "$real"`
bn=`basename "$real" .qcow2`
pristine="$dir/$bn.pristine.qcow2"
if [ ! -e "$pristine" ]; then
echo "'$pristine' does not exist" >&2
return 1
fi
done
return
}
vm_view() {
vm_wait=
if [ "$1" = "--wait" ]; then
vm_wait="$1"
shift
fi
if [ -n "$vm_viewer_args" ] && ! echo "$vm_viewer_args" | egrep -q "^[a-zA-Z0-9_=:/\.,\-]+$" ; then
echo "Illegal character in '$vm_viewer_args'" >&2
return 1
fi
m="$1"
if ! vm_exists $m ; then
echo "'$m' does not exist" >&2
return 1
fi
if [ -n "$vm_viewer" ] && ! which "$vm_viewer" >/dev/null ; then
echo "Could not find '$vm_viewer', using 'virt-viewer' instead" >&2
vm_viewer="virt-viewer"
fi
sleep 0.5
cd /tmp
if [ -z "$vm_viewer" ] || [ "$vm_viewer" = "virt-viewer" ]; then
nohup virt-viewer $vm_wait -c ${vm_connect} "$m" >/dev/null 2>&1 &
else
nohup "$vm_viewer" $vm_viewer_args `virsh vncdisplay "$m" | grep '^[1-9:]'` >/dev/null 2>&1 &
fi
cd - >/dev/null
}
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