Script to backup virtual machines

Prerequisites:
- VM must be located on LVM
- virsh

This is my script (all vm will be backup-ed):


#!/bin/sh


##############################




VOLGROUP=sugriwa
LOGVOLSRC=episode1


##SOURCE=/home/export/vm
TARGET=/home/backup/backupvm


##
##default
LOGVOLSNAP=snapvm1
SNAPSIZE=15G




##############################


if [ "x$1" != "xY" ] ; then
echo $0 Y
exit
fi




mkdir "$TARGET/xml"


ALLVM=`virsh list --all | tail -n+3 | head -n-1 |  awk '{print $2}'`


for a in $ALLVM; do


virsh suspend $a
virsh dumpxml $a > "$TARGET/xml/$a.xml"
done






echo creating snapshot


lvcreate -L$SNAPSIZE -s -n $LOGVOLSNAP $VOLGROUP/$LOGVOLSRC




for a in $ALLVM; do
virsh resume $a
done






mkdir /mnt/$LOGVOLSNAP
mount /dev/$VOLGROUP/$LOGVOLSNAP /mnt/$LOGVOLSNAP




echo copying...
rsync -ahvx --inplace --progress /mnt/$LOGVOLSNAP/ $TARGET/




umount /mnt/$LOGVOLSNAP
rmdir /mnt/$LOGVOLSNAP




echo removing snapshot


lvremove -f $VOLGROUP/$LOGVOLSNAP

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