303 lines
9.3 KiB
Bash
303 lines
9.3 KiB
Bash
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#!/bin/bash
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# Copyright (c) 2012 Peter Varkoly Nürnberg, Germany. All rights reserved.
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# oss-backup
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#
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# $Id: oss-backup,v 1.10 2007/07/18 16:43:22 pv Exp $
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#
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LOGFILE=/var/log/oss-backup.log
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DATE=`date +%Y-%m-%d-%H-%M`
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#TODO Make all variables configurable.
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MYSQLDUMP_OPTIONS="--lock-tables --add-drop-database --add-locks --quote-names --opt --create-options"
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MAILADDR="admin"
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FORCE="no"
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VERBOSE="yes"
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CONFIG=/etc/sysconfig/schoolserver
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RSYNCPARS=" -aA --delete --size-only "
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LIMIT=80
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DAY_OF_WEEK=$( date +%u )
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if [ -e /var/adm/oss/BackupRunning ]
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then
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BPID=$( cat /var/adm/oss/BackupRunning )
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if [ -d /proc/$BPID ]; then
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echo "An other backup process is running with PID: $BPID"
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exit 1;
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fi
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fi
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echo $$ > /var/adm/oss/BackupRunning
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function TheEnd(){
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rm /var/adm/oss/BackupRunning
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echo $DATE > /var/adm/backup/LAST_BACKUP
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if [ "$2" ]; then
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LOG "$2 $1";
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fi
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exit $1
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}
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function usage (){
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echo
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echo "Usage: `basename $0` [OPTION] "
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echo " -h|--help : help (this message)"
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echo " -f : force backup (even if it's disabled in config)"
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echo " -v : be verbose"
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echo
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echo " Use this script to immediately create a backup of your OSS."
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echo " You can find the configuration in $CONFIG."
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echo " Feel free to read the administration handbook for further details."
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echo
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TheEnd $1
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}
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function check_discspace() {
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if [ "$SCHOOL_BACKUP_WARNING_LIMIT" ]; then
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LIMIT=$SCHOOL_BACKUP_WARNING_LIMIT
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fi
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USED=`df $1 | tail -n1 | awk '{ print $(NF-1) }' | sed s/%//`
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if [ $USED -gt $LIMIT ]; then
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{
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AVAIL=`df -h $1 | tail -n1 | awk '{ print $(NF-2) }'`
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echo "WARNING: only $AVAIL space available on $1." | tee -a $LOGFILE
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} | mail -s "BACKUP WARNING from $0" $MAILADDR
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fi
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}
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function LOG() {
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LOG_DATE=`date "+%b %d %H:%M:%S"`
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HOST=`hostname`
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echo "$LOG_DATE $HOST oss-backup: $1" >> $LOGFILE
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if [ "$VERBOSE" = "yes" ]; then
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echo "$1"
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fi
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}
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while getopts 'fhv --long help --' OPTION ; do
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case $OPTION in
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h|H|help) usage 0
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;;
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f) FORCE="yes"
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;;
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v) VERBOSE="yes"
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;;
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esac
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done
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shift $(( OPTIND - 1 ))
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if [ ! -f $CONFIG ]; then
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echo -e "\033[0;31;1mThis script is for Open School Server only!\033[\0m"
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echo -e "\033[0;31;1m********* exiting *********\033[\0m"
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TheEnd 1
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fi
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# Read the configuration
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. $CONFIG
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if [ -z "$SCHOOL_BACKUP_DAYS" ]; then
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SCHOOL_BACKUP_DAYS="1234567"
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fi
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if [ "$SCHOOL_BACKUP_CAN_NOT_SAVE_ACL" = "yes" ]; then
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RSYNCPARS=" -a --delete "
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fi
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if [ "$SCHOOL_BACKUP_CAN_NOT_SAVE_OWNER" = "yes" ]; then
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RSYNCPARS=" -r --delete "
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fi
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if [ "${SCHOOL_BACKUP_DAYS/$DAY_OF_WEEK/}" = $SCHOOL_BACKUP_DAYS -a "$FORCE" != "yes" ]; then
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LOG "********** No backup needed today **********"
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exit 0;
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fi
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MAILADDR="admin@$SCHOOL_DOMAIN"
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if [ "$SCHOOL_BACKUP" = "yes" ] || [ "$FORCE" = "yes" ] ; then
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LOG "********** Starting Backup **********"
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if [ "$SCHOOL_BACKUP_START_CMD" ]; then
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eval $SCHOOL_BACKUP_START_CMD
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fi
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if [ -e /var/adm/backup/LAST_BACKUP ]; then
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LAST_BACKUP=`cat /var/adm/backup/LAST_BACKUP`
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else
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LAST_BACKUP=$DATE
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fi
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# check needed configs
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if [ -z $SCHOOL_BACKUP_FULL_DIR ]; then
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VERBOSE="yes"
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LOG "No SCHOOL_BACKUP_FULL_DIR defined - exiting"
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TheEnd 1
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fi
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check_discspace $SCHOOL_BACKUP_FULL_DIR
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if [ -z $SCHOOL_BACKUP_INC_DIR ]; then
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VERBOSE="yes"
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LOG "No SCHOOL_BACKUP_INC_DIR defined - using $SCHOOL_BACKUP_FULL_DIR instead"
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SCHOOL_BACKUP_INC_DIR=$SCHOOL_BACKUP_FULL_DIR
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else
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check_discspace $SCHOOL_BACKUP_INC_DIR
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fi
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#create the backup direcktory
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BACKUP_DIR="$SCHOOL_BACKUP_INC_DIR/$LAST_BACKUP"
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mkdir -p $BACKUP_DIR
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if [ $? != 0 ]; then
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TheEnd 6 "CAN_NOT_MAKE_BACKUP"
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fi
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touch $SCHOOL_BACKUP_FULL_DIR/DO_BACKUP
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if [ $? != 0 ]; then
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TheEnd 6 "CAN_NOT_MAKE_BACKUP"
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fi
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export BACKUP_DIR
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export SCHOOL_BACKUP_FULL_DIR
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if [ "$SCHOOL_BACKUP_CHECK_MOUNT" = "yes" ]; then
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mount | grep -q "$SCHOOL_BACKUP_FULL_DIR" || {
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LOG "Unable to mount $SCHOOL_BACKUP_FULL_DIR"
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TheEnd 5
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}
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mount | grep -q "$SCHOOL_BACKUP_INC_DIR" || {
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LOG "Unable to mount $SCHOOL_BACKUP_INC_DIR"
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TheEnd 5
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}
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fi
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# copy sysconfig file schoolconf to the base for simple recovery
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cp /etc/sysconfig/schoolserver $SCHOOL_BACKUP_FULL_DIR/
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if [ $? != 0 ]; then
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TheEnd 6 "CAN_NOT_MAKE_BACKUP"
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fi
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# save custom squidGuard database
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LOG "Syncing custom squidGuard database"
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mkdir -p $SCHOOL_BACKUP_FULL_DIR/var/lib/squidGuard/db/custom/
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mkdir -p $BACKUP_DIR/var/lib/squidGuard/db/custom/
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rsync $RSYNCPARS -b --backup-dir=$BACKUP_DIR/var/lib/squidGuard/db/custom/ \
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/var/lib/squidGuard/db/custom/ \
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$SCHOOL_BACKUP_FULL_DIR/var/lib/squidGuard/db/custom/
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if [ $? != 0 ]; then
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TheEnd 6 "CAN_NOT_MAKE_BACKUP"
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fi
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LOG "Syncing samba"
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if [ "$SCHOOL_BACKUP_CAN_NOT_SAVE_ACL" = "yes" ]; then
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test -e $SCHOOL_BACKUP_FULL_DIR/samba_facls.gz && mv $SCHOOL_BACKUP_FULL_DIR/samba_facls.gz $BACKUP_DIR
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getfacl --absolute-names -R /var/lib/samba/ | gzip > $SCHOOL_BACKUP_FULL_DIR/samba_facls.gz
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fi
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mkdir -p $BACKUP_DIR/var/lib/samba/
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rsync $RSYNCPARS -b --backup-dir=$BACKUP_DIR/var/lib/samba/ /var/lib/samba/ $SCHOOL_BACKUP_FULL_DIR/var/lib/samba/
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if [ $? != 0 ]; then
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TheEnd 6 "CAN_NOT_MAKE_BACKUP"
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fi
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# save /etc - must run after samba-backup otherwise secrets.tdb.bak is not saved
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if [ "$SCHOOL_BACKUP_CAN_NOT_SAVE_ACL" = "yes" ]; then
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LOG "Saving acls on /etc/"
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if [ -e $SCHOOL_BACKUP_FULL_DIR/etc_facls.gz ]; then
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mv $SCHOOL_BACKUP_FULL_DIR/etc_facls.gz $BACKUP_DIR/etc_facls.gz
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fi
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getfacl --skip-base --absolute-names -R /etc/ | gzip > $SCHOOL_BACKUP_FULL_DIR/etc_facls.gz
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fi
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LOG "Syncing /etc/"
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mkdir -p $BACKUP_DIR/etc/
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rsync $RSYNCPARS -b --backup-dir=$BACKUP_DIR/etc/ /etc/ $SCHOOL_BACKUP_FULL_DIR/etc/
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if [ $? != 0 ]; then
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TheEnd 6 "CAN_NOT_MAKE_BACKUP"
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fi
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# save /root (needed already for ssh-key files)
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LOG "Syncing /root/"
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mkdir -p $BACKUP_DIR/root/
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rsync $RSYNCPARS -b --backup-dir=$BACKUP_DIR/root/ /root/ $SCHOOL_BACKUP_FULL_DIR/root/
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if [ "$SCHOOL_BACKUP_HOME" = "yes" ]; then
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if [ "$SCHOOL_BACKUP_CAN_NOT_SAVE_ACL" = "yes" ]; then
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LOG "Saving acls on /home/"
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if [ -e $SCHOOL_BACKUP_FULL_DIR/home_facls.gz ]; then
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mv $SCHOOL_BACKUP_FULL_DIR/home_facls.gz $BACKUP_DIR/home_facls.gz
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fi
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getfacl --skip-base --absolute-names -R /home/ | gzip > $SCHOOL_BACKUP_FULL_DIR/home_facls.gz
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fi
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LOG "Syncing /home/"
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test -e /usr/share/oss/templates/exclude-from-home-backup || touch /usr/share/oss/templates/exclude-from-home-backup
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# If $SCHOOL_BACKUP_FULL_DIR equal $SCHOOL_BACKUP_INC_DIR we make hartlinks
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if [ $SCHOOL_BACKUP_FULL_DIR = $SCHOOL_BACKUP_INC_DIR -a "$SCHOOL_BACKUP_WITH_HARDLINK" = "yes" ]; then
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if [ -d $SCHOOL_BACKUP_FULL_DIR/home/ ]; then
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mv $SCHOOL_BACKUP_FULL_DIR/home/ $BACKUP_DIR/home/
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else
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mkdir -p $BACKUP_DIR/home/
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fi
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rsync $RSYNCPARS --exclude-from=/usr/share/oss/templates/exclude-from-home-backup --link-dest=$BACKUP_DIR/home/ /home/ $SCHOOL_BACKUP_FULL_DIR/home/
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if [ $? != 0 ]; then
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TheEnd 6 "CAN_NOT_MAKE_BACKUP"
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fi
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else
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mkdir -p $BACKUP_DIR/home/
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rsync $RSYNCPARS --exclude-from=/usr/share/oss/templates/exclude-from-home-backup -b --backup-dir=$BACKUP_DIR/home/ /home/ $SCHOOL_BACKUP_FULL_DIR/home/
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if [ $? != 0 ]; then
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TheEnd 6 "CAN_NOT_MAKE_BACKUP"
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fi
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fi
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fi
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if [ "$SCHOOL_BACKUP_CTOOL" = "yes" ]; then
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LOG "Syncing itool"
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mkdir -p $SCHOOL_BACKUP_FULL_DIR/srv/itool
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mkdir -p $BACKUP_DIR/srv/itool
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rsync $RSYNCPARS -b --backup-dir=$BACKUP_DIR/srv/itool/ /srv/itool/ $SCHOOL_BACKUP_FULL_DIR/srv/itool/
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if [ $? != 0 ]; then
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TheEnd 6 "CAN_NOT_MAKE_BACKUP"
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fi
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fi
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if [ "$SCHOOL_BACKUP_DB" = "yes" ]; then
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LOG "Syncing OSS Database"
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mysqldump $MYSQLDUMP_OPTIONS --all-databases | gzip > $BACKUP_DIR/MYSQL.sql.gz
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if [ $? != 0 ]; then
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LOG " CAN_NOT_MAKE_BACKUP"
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fi
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fi
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if [ "$SCHOOL_BACKUP_MAIL" = "yes" ]; then
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LOG "Syncing Mail Data"
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for i in var/spool/imap/ var/lib/imap/; do
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mkdir -p $SCHOOL_BACKUP_FULL_DIR/$i
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mkdir -p $BACKUP_DIR/$i
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rsync $RSYNCPARS -b --backup-dir=$BACKUP_DIR/$i /$i $SCHOOL_BACKUP_FULL_DIR/$i
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if [ $? != 0 ]; then
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LOG " CAN_NOT_MAKE_BACKUP"
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fi
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done
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fi
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# Now we make recovery easy
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if [ -f /usr/share/oss/tools/oss_recover.sh ]; then
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cp -f /usr/share/oss/tools/oss_recover.sh $SCHOOL_BACKUP_FULL_DIR/
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chmod 750 $SCHOOL_BACKUP_FULL_DIR/oss_recover.sh
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chown root:root $SCHOOL_BACKUP_FULL_DIR/oss_recover.sh
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fi
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if [ -f /usr/share/doc/packages/openschool-base/oss_recover.readme ]; then
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cp -f /usr/share/doc/packages/openschool-base/oss_recover.readme $SCHOOL_BACKUP_FULL_DIR/
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fi
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# Execute custom scripts
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if [ "$SCHOOL_BACKUP_CUSTOM_SCRIPTS" ]; then
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for i in $SCHOOL_BACKUP_CUSTOM_SCRIPTS
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do
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LOG "Starting $i"
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$i $BACKUP_DIR $SCHOOL_BACKUP_FULL_DIR
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done
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fi
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# create mark for last backup
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DATE=`date +%Y-%m-%d-%H-%M`
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LOG "********** Backup finished **********"
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echo $DATE > /var/adm/backup/LAST_BACKUP
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if [ "$SCHOOL_BACKUP_STOP_CMD" ]; then
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eval $SCHOOL_BACKUP_STOP_CMD
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fi
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fi
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TheEnd
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