cloudstack/scripts/vm/hypervisor/xenserver/create_privatetemplate_from_snapshot.sh
2011-12-21 20:31:40 -08:00

115 lines
2.2 KiB
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Executable File

#!/bin/bash
# Version @VERSION@
#set -x
usage() {
printf "Usage: %s [vhd file in secondary storage] [template directory in secondary storage] \n" $(basename $0)
}
options='tcp,soft,timeo=133,retrans=1'
cleanup()
{
if [ ! -z $snapshotdir ]; then
umount $snapshotdir
if [ $? -eq 0 ]; then
rmdir $snapshotdir
fi
fi
if [ ! -z $templatedir ]; then
umount $templatedir
if [ $? -eq 0 ]; then
rmdir $templatedir
fi
fi
}
if [ -z $1 ]; then
usage
echo "2#no vhd file path"
exit 0
else
snapshoturl=${1%/*}
vhdfilename=${1##*/}
fi
if [ -z $2 ]; then
usage
echo "3#no template path"
exit 0
else
templateurl=$2
fi
snapshotdir=/var/run/cloud_mount/$(uuidgen -r)
mkdir -p $snapshotdir
if [ $? -ne 0 ]; then
echo "4#cann't make dir $snapshotdir"
exit 0
fi
mount -o $options $snapshoturl $snapshotdir
if [ $? -ne 0 ]; then
rmdir $snapshotdir
echo "5#can not mount $snapshoturl to $snapshotdir"
exit 0
fi
templatedir=/var/run/cloud_mount/$(uuidgen -r)
mkdir -p $templatedir
if [ $? -ne 0 ]; then
templatedir=""
cleanup
echo "6#cann't make dir $templatedir"
exit 0
fi
mount -o $options $templateurl $templatedir
if [ $? -ne 0 ]; then
rmdir $templatedir
templatedir=""
cleanup
echo "7#can not mount $templateurl to $templatedir"
exit 0
fi
VHDUTIL="/opt/xensource/bin/vhd-util"
copyvhd()
{
local desvhd=$1
local srcvhd=$2
local parent=
parent=`$VHDUTIL query -p -n $srcvhd`
if [ $? -ne 0 ]; then
echo "30#failed to query $srcvhd"
cleanup
exit 0
fi
if [[ "${parent}" =~ " no parent" ]]; then
dd if=$srcvhd of=$desvhd bs=2M
if [ $? -ne 0 ]; then
echo "31#failed to dd $srcvhd to $desvhd"
cleanup
exit 0
fi
else
copyvhd $desvhd $parent
$VHDUTIL coalesce -p $desvhd -n $srcvhd
if [ $? -ne 0 ]; then
echo "32#failed to coalesce $desvhd to $srcvhd"
cleanup
exit 0
fi
fi
}
templateuuid=$(uuidgen -r)
desvhd=$templatedir/$templateuuid.vhd
srcvhd=$snapshotdir/$vhdfilename
copyvhd $desvhd $srcvhd
virtualSize=`$VHDUTIL query -v -n $desvhd`
physicalSize=`ls -l $desvhd | awk '{print $5}'`
cleanup
echo "0#$templateuuid#$physicalSize#$virtualSize"
exit 0