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164 lines
2.4 KiB
Bash
164 lines
2.4 KiB
Bash
#!/usr/bin/env bash
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# $Id: managevolume.sh 9132 2010-06-04 20:17:43Z manuel $ $HeadURL: svn://svn.lab.vmops.com/repos/vmdev/java/scripts/storage/qcow2/managevolume.sh $
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# modifyvolume.sh -- add or delete a disk volume
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#
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usage() {
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echo "Usage: modifydisk.sh -f <folder of volume> -p <path of volume> -s <size of volume> [-d <delete>] \n"
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}
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check_params() {
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# The folder, path, and size must be passed in
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if [ "$fflag$pflag$sflag" != "111" ]
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then
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return 1
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else
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return 0
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fi
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}
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cleanup_and_exit_if_error() {
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local return_code=$1
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local msg=$2
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local path=$3
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if [ $return_code -gt 0 ]
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then
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delete_disk $path
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exit_if_error $return_code "$msg"
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fi
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}
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exit_if_error() {
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local return_code=$1
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local msg=$2
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if [ $return_code -gt 0 ]
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then
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printf "${msg}\n"
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exit 1
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fi
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}
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make_folder() {
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local folder=$1
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if [ ! -d ${folder} ]
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then
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mkdir -p ${folder}
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fi
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}
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check_disk() {
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local folder=$1
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local path=$2
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make_folder $folder
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if [ -f $path ]
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then
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return 1
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else
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return 0
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fi
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}
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delete_disk() {
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local path=$1
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if [ -f $path ]
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then
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rm $path
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fi
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return 0
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}
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create_disk() {
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local path=$1
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local size=$2
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size=$(convert_size_to_gb $size)
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if [ $? -gt 0 ]
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then
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return 1
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fi
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qemu-img create -f qcow2 $path $size
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return $?
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}
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convert_size_to_gb() {
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local size=$1
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suffix=${size:(-1)}
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case $suffix in
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G)
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;;
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[0-9]) size=${size}G
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;;
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*) printf "Error in disk size: expect G as a suffix or no suffix\n"
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return 1
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;;
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esac
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echo $size
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return 0
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}
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# set -x
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fflag=0
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pflag=0
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sflag=0
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dflag=0
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while getopts 'f:p:s:d:' OPTION
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do
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case $OPTION in
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f) fflag=1
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folder="$OPTARG"
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;;
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p) pflag=1
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path="$OPTARG"
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;;
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s) sflag=1
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size="$OPTARG"
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;;
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d) dflag=1
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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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# Check all parameters
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check_params
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exit_if_error $? "$(usage)"
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if [ "$dflag" == "0" ]
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then
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# Add the volume
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# Create the folder if necessary, and make sure there is no existing disk there
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check_disk $folder $path
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cleanup_and_exit_if_error $? "Failed to create disk at $path; path already exists." $path
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# Create the disk
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create_disk $path $size
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cleanup_and_exit_if_error $? "Failed to create disk at $path of size $datadisksize." $path
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else
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# Delete the volume
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delete_disk $path
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fi
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exit 0
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