mirror of https://github.com/apache/cloudstack.git
122 lines
2.2 KiB
Bash
Executable File
122 lines
2.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# $Id: managesnapshot.sh 9132 2010-06-04 20:17:43Z manuel $ $HeadURL: svn://svn.lab.vmops.com/repos/branches/2.1.x.beta/java/scripts/storage/qcow2/managesnapshot.sh $
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# managesnapshot.sh -- manage snapshots for a single disk (create, destroy, rollback)
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#
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usage() {
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printf "Usage: %s: -c <path to disk> -n <snapshot name>\n" $(basename $0) >&2
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printf "Usage: %s: -d <path to disk> -n <snapshot name>\n" $(basename $0) >&2
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printf "Usage: %s: -r <path to disk> -n <snapshot name>\n" $(basename $0) >&2
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exit 2
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}
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create_snapshot() {
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local disk=$1
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local snapshotname=$2
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local failed=0
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qemu-img snapshot -c $snapshotname $disk
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if [ $? -gt 0 ]
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then
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failed=1
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printf "***Failed to create snapshot $snapshotname for path $disk\n" >&2
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qemu-img snapshot -d $snapshotname $disk
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if [ $? -gt 0 ]
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then
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printf "***Failed to delete snapshot $snapshotname for path $disk\n" >&2
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fi
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fi
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return $failed
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}
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destroy_snapshot() {
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local disk=$1
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local snapshotname=$2
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local failed=0
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qemu-img snapshot -d $snapshotname $disk
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if [ $? -gt 0 ]
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then
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printf "***Failed to delete snapshot $snapshotname for path $disk\n" >&2
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failed=1
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fi
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return $failed
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}
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rollback_snapshot() {
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local disk=$1
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local snapshotname=$2
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local failed=0
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qemu-img snapshot -a $snapshotname $disk
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if [ $? -gt 0 ]
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then
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printf "***Failed to apply snapshot $snapshotname for path $disk\n" >&2
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failed=1
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fi
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return $failed
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}
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#set -x
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cflag=
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dflag=
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rflag=
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nflag=
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pathval=
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snapshot=
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while getopts 'c:d:r:n:' OPTION
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do
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case $OPTION in
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c) cflag=1
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pathval="$OPTARG"
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;;
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d) dflag=1
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pathval="$OPTARG"
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;;
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r) rflag=1
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pathval="$OPTARG"
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;;
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n) nflag=1
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snapshot="$OPTARG"
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;;
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?) usage
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;;
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esac
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done
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if [ "$nflag" != "1" ]
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then
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usage
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fi
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if [ "$cflag$dflag$rflag" != "1" ]
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then
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printf "***Specify one of -c (create), -d (destroy), or -r (rollback) and a path for the target snapshot\n" >&2
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usage
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fi
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if [ "$cflag" == "1" ]
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then
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create_snapshot $pathval $snapshot
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exit $?
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elif [ "$dflag" == "1" ]
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then
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destroy_snapshot $pathval $snapshot
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exit $?
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elif [ "$rflag" == "1" ]
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then
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rollback_snapshot $pathval $snapshot
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exit $?
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fi
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exit 0
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