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185 lines
3.3 KiB
Bash
Executable File
185 lines
3.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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# $Id: createtmplt.sh 11601 2010-08-11 17:26:15Z kris $ $HeadURL: svn://svn.lab.vmops.com/repos/branches/2.1.refactor/java/scripts/storage/qcow2/createtmplt.sh $
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# createtmplt.sh -- install a template
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usage() {
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printf "Usage: %s: -t <template-fs> -n <templatename> -f <root disk file> -s <size in Gigabytes> -c <md5 cksum> -d <descr> -h [-u]\n" $(basename $0) >&2
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}
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#set -x
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verify_cksum() {
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echo "$1 $2" | md5sum -c --status
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#printf "$1\t$2" | md5sum -c --status
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if [ $? -gt 0 ]
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then
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printf "Checksum failed, not proceeding with install\n"
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exit 3
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fi
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}
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untar() {
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local ft=$(file $1| awk -F" " '{print $2}')
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local basedir=$(dirname $1)
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case $ft in
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USTAR) local rootimg=$(tar tf $1 | grep $3)
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(cd $2; tar xf $1)
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rm -f $1
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printf "$2/$rootimg"
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;;
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*) printf "$1"
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return 0
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;;
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esac
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}
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uncompress() {
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local ft=$(file $1| awk -F" " '{print $2}')
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local imgfile=${1%.*} #strip out trailing file suffix
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local tmpfile=${imgfile}.tmp
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case $ft in
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gzip) gunzip -c $1 > $tmpfile
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;;
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bzip2) bunzip2 -c $1 > $tmpfile
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;;
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ZIP) unzip -p $1 | cat > $tmpfile
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;;
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*) printf "$1"
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return 0
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;;
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esac
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if [ $? -gt 0 ]
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then
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printf "Failed to uncompress file, exiting "
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exit 1
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fi
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mv $tmpfile $imgfile
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printf "$imgfile"
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return 0
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}
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create_from_file() {
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local tmpltfs=$1
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local tmpltimg=$2
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local tmpltname=$3
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#copy the file to the disk
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cp $tmpltimg /$tmpltfs/$tmpltname
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if [ "$cleanup" == "true" ]
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then
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rm -f $tmpltimg
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fi
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chmod a+r /$tmpltfs/$tmpltname
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}
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create_from_snapshot() {
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local tmpltImg=$1
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local snapshotName=$2
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local tmpltfs=$3
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local tmpltname=$4
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cloud-qemu-img convert -f qcow2 -O qcow2 -s $snapshotName $tmpltImg /$tmpltfs/$tmpltname >& /dev/null
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if [ $? -gt 0 ]
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then
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printf "Failed to create template /$tmplfs/$tmpltname from snapshot $snapshotName on disk $tmpltImg "
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exit 2
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fi
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chmod a+r /$tmpltfs/$tmpltname
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}
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tflag=
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nflag=
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fflag=
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sflag=
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hflag=
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hvm=false
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cleanup=false
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dflag=
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cflag=
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snapshotName=
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while getopts 'uht:n:f:sc:d:' OPTION
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do
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case $OPTION in
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t) tflag=1
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tmpltfs="$OPTARG"
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;;
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n) nflag=1
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tmpltname="$OPTARG"
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;;
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f) fflag=1
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tmpltimg="$OPTARG"
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;;
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s) sflag=1
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sflag=1
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;;
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c) cflag=1
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snapshotName="$OPTARG"
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;;
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d) dflag=1
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descr="$OPTARG"
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;;
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u) cleanup="true"
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;;
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?) usage
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exit 2
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;;
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esac
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done
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if [ ! -d /$tmpltfs ]
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then
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mkdir -p /$tmpltfs
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if [ $? -gt 0 ]
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then
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printf "Failed to create user fs $tmpltfs\n" >&2
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exit 1
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fi
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fi
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if [ ! -f $tmpltimg ]
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then
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printf "root disk file $tmpltimg doesn't exist\n"
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exit 3
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fi
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tmpltimg=$(uncompress $tmpltimg)
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if [ $? -ne 0 ]
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then
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printf "failed to uncompress $tmpltimg\n"
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fi
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if [ "$sflag" == "1" ]
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then
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create_from_snapshot $tmpltimg $snapshotName $tmpltfs $tmpltname
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else
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create_from_file $tmpltfs $tmpltimg $tmpltname
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fi
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touch /$tmpltfs/template.properties
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chmod a+r /$tmpltfs/template.properties
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echo -n "" > /$tmpltfs/template.properties
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today=$(date '+%m_%d_%Y')
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echo "filename=$tmpltname" > /$tmpltfs/template.properties
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echo "snapshot.name=$today" >> /$tmpltfs/template.properties
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echo "description=$descr" >> /$tmpltfs/template.properties
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if [ "$cleanup" == "true" ]
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then
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rm -f $tmpltimg
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fi
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exit 0
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