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#!/bin/bash |
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# $Id: enable-snapshot 51 2013-10-10 11:20:37Z ltaulell $ |
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# Copyright (C) 2013 Kevin Reverchon, Loïs Taulelle |
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# This file/program is part of gZFS free software |
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# See COPYING file for details |
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# |
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|
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DIR_CRON="/etc/cron.d/" |
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DIR_CONF_SNAPSHOT="/opt/gZFS/snapshots/" |
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BIN_ZFS_SNAPSHOT="/sbin/zfs-snapshot" |
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BINZFS="/sbin/zfs" |
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BINZPOOL="/sbin/zpool" |
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|
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function usage {
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echo "Usage : $0 options" 1>&2 |
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echo "OPTIONS :" 1>&2 |
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echo " -i : interactive mode, this option is not compatible with other options" 1>&2 |
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echo " -m : minute field for cron snapshot" 1>&2 |
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echo " -H : hour field for cron snapshot" 1>&2 |
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echo " -D : Day of Month field for cron snapshot" 1>&2 |
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echo " -M : Month field for cron snapshot" 1>&2 |
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echo " -d : Day of week for cron snapshot" 1>&2 |
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echo " -N : Name of ZFS Volume/FileSystem to snapshot" 1>&2 |
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echo " -t : Type (Possible values: volume or filesystem)" 1>&2 |
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echo " -k : Number of snapshot to keep" 1>&2 |
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} |
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|
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function checkField4Cron {
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if [[ $OPTARG =~ [a-zA-Z] ]] |
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then |
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echo "-$OPTION contain a bad value" 1>&2 |
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exit 1 |
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fi |
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} |
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function createCronFile4Snapshot {
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FILE_NAME=$(echo "snapshot-"${NAMEZFS//\//-})
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echo "$MINUTE $HOUR $MONTH $DAYMONTH $DAYWEEK root $BIN_ZFS_SNAPSHOT $DIR_CONF_SNAPSHOT$FILE_NAME.conf" > $DIR_CRON$FILE_NAME |
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echo "name=$NAMEZFS" >$DIR_CONF_SNAPSHOT$FILE_NAME.conf |
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echo "type=$TYPEZFS" >>$DIR_CONF_SNAPSHOT$FILE_NAME.conf |
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echo "nbsnapshots=$SNAP2KEEP" >>$DIR_CONF_SNAPSHOT$FILE_NAME.conf |
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} |
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function interactive {
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$BINZFS list |
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echo "*** Select the ZFS volume/filesystem : ***" |
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|
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while read inputline |
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do |
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NAME_VOL=$inputline |
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if [ "$NAME_VOL" = "" ] |
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then |
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echo "*** Select the ZFS volume/filesystem : ***" |
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else |
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|
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echo "*** Are you sur : $inputline ? (y/n) ***" |
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|
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|
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while read inputConfirm |
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do |
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if [ "$inputConfirm" = "y" ]||[ "$inputConfirm" = "n" ] |
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then |
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break |
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fi |
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echo "*** Are you sur : $inputline ? (y/n) ***" |
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done |
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|
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if [ "$inputConfirm" = "y" ] |
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then |
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$BINZFS list $NAME_VOL |
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if [ $? -eq 0 ] |
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then |
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echo "*** The ZFS volume/filesystem $NAME_VOL exists ***" |
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break |
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else |
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echo "*** The ZFS volume/filesystem $NAME_VOL does not exist ***" |
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echo "*** Select the ZFS volume/filesystem : ***" |
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fi |
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fi |
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if [ "$inputConfirm" != "y" ] |
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then |
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echo "*** Select the ZFS volume/filesystem : ***" |
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fi |
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|
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fi |
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done |
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echo "*** ZFS Type : volume or filesystem ? ***" |
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|
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while read inputline |
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do |
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if [ "$inputline" = "volume" ] || [ "$inputline" = "filesystem" ] |
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then |
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TYPE_ZFS=$inputline |
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break |
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else |
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echo "*** ZFS Type : volume or filesystem ? ***" |
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fi |
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done |
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echo "*** How many snapshot to keep ? ***" |
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while read inputline |
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do |
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NB_SNAP=$inputline |
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if [ "$NB_SNAP" = "" ] |
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then |
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echo "*** How many snapshot to keep ? ***" |
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else |
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echo "*** Creation of the configuration file ***" |
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FILE_NAME=$(echo "snapshot-"${NAME_VOL//\//-})
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>$DIR_CONF_SNAPSHOT$FILE_NAME.conf |
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echo "name=$NAME_VOL" > $DIR_CONF_SNAPSHOT$FILE_NAME.conf |
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echo "nbsnapshots=$NB_SNAP" >> $DIR_CONF_SNAPSHOT$FILE_NAME.conf |
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echo "type=$TYPE_ZFS" >> $DIR_CONF_SNAPSHOT$FILE_NAME.conf |
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break |
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fi |
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done |
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echo "*** Snapshots Frequency ***" |
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echo "1 - Every days" |
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echo "2 - Every weeks" |
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echo "3 - Every Months" |
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echo "*******************************" |
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while read inputline |
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do |
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case $inputline in |
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"1" ) |
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echo "*** Enter the Time (HH:MM) " |
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while read inputheure |
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do |
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if [[ "$inputheure" =~ [0-9][0-9]":"[0-9][0-9] ]] |
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then |
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echo "Snapshot will be taken at : $inputheure" |
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H_DEBUT=$(echo $inputheure |cut -d":" -f1) |
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M_DEBUT=$(echo $inputheure |cut -d":" -f2) |
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echo "$M_DEBUT $H_DEBUT * * * root $BIN_ZFS_SNAPSHOT $DIR_CONF_SNAPSHOT$FILE_NAME.conf" > $DIR_CRON$FILE_NAME |
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break; |
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else |
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echo "*** Enter the Time (HH:MM) " |
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fi |
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done |
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break ;; |
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"2" ) |
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echo "*** Select day of week : 0-6 (0 is sunday) " |
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while read inputjour |
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do |
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if [[ "$inputjour" =~ [0-9] ]] |
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then |
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echo "*** Enter the Time (HH:MM) " |
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while read inputheure |
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do |
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if [[ "$inputheure" =~ [0-9][0-9]":"[0-9][0-9] ]] |
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then |
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echo "Snapshot will be taken at : $inputheure" |
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H_DEBUT=$(echo $inputheure |cut -d":" -f1) |
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M_DEBUT=$(echo $inputheure |cut -d":" -f2) |
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break; |
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else |
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echo "*** Enter the Time (HH:MM) " |
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fi |
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done |
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echo "$M_DEBUT $H_DEBUT * * $inputjour root $BIN_ZFS_SNAPSHOT $DIR_CONF_SNAPSHOT$FILE_NAME.conf" > $DIR_CRON$FILE_NAME |
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echo "*** Snapshot Configuration [OK]" |
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break; |
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else |
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echo "*** Select day of week : 0-6 (0 is sunday) " |
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fi |
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done |
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break ;; |
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"3" ) |
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echo "*** Selelct day of month : 01-30" |
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while read inputjour |
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do |
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if [[ "$inputjour" =~ [0-9][0-9] ]] |
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then |
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echo "*** Enter the Time (HH:MM) " |
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while read inputheure |
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do |
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if [[ "$inputheure" =~ [0-9][0-9]":"[0-9][0-9] ]] |
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then |
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echo "Snapshot will be taken at : $inputheure" |
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H_DEBUT=$(echo $inputheure |cut -d":" -f1) |
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M_DEBUT=$(echo $inputheure |cut -d":" -f2) |
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break; |
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else |
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echo "*** Enter the Time (HH:MM) " |
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fi |
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done |
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echo "$M_DEBUT $H_DEBUT $inputjour * * root $BIN_ZFS_SNAPSHOT $DIR_CONF_SNAPSHOT$FILE_NAME.conf" > $DIR_CRON$FILE_NAME |
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echo "*** Snapshot configuration [OK]" |
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break; |
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else |
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echo "*** Select the day of month : 01-30 " |
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fi |
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done |
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break ;; |
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esac |
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echo "*** Snapshots Frequency *** " |
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echo "1 - Every days" |
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echo "2 - Every weeks" |
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echo "3 - Every months" |
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echo "*******************************" |
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done |
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/etc/init.d/cron restart |
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} |
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while getopts "im:H:D:M:d:N:t:k:h" OPTION |
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do |
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case $OPTION in |
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h) |
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usage |
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exit 1 |
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;; |
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i) |
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interactive |
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exit 0 |
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;; |
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m) |
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checkField4Cron |
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MINUTE=$OPTARG |
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;; |
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H) |
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checkField4Cron |
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HOUR=$OPTARG |
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;; |
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D) |
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checkField4Cron |
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DAYMONTH=$OPTARG |
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;; |
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M) |
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checkField4Cron |
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MONTH=$OPTARG |
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;; |
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d) |
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checkField4Cron |
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DAYWEEK=$OPTARG |
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;; |
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N) |
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NAMEZFS=$OPTARG |
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;; |
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t) |
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TYPEZFS=$OPTARG |
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;; |
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k) |
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SNAP2KEEP=$OPTARG |
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;; |
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*) |
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usage |
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exit 1 |
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;; |
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esac |
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done |
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if [[ -z $MINUTE ]] || [[ -z $HOUR ]] || [[ -z $DAYMONTH ]] || [[ -z $MONTH ]] || [[ -z $DAYWEEK ]] || [[ -z $NAMEZFS ]] || [[ -z $TYPEZFS ]] || [[ -z $SNAP2KEEP ]] |
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then |
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usage |
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exit 1 |
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fi |
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createCronFile4Snapshot |
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/etc/init.d/cron restart |
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