Backup scripts

These backup scripts use rsync to minimize network load and creates incremental backups, preserving last four backups. For more info, read http://www.mikerubel.org/computers/rsync_snapshots/.

To install the cron job, run:

$ sudo crontab -e

And add these lines according to your personal configuration:

MAILTO=openkm@nomail.com
@weekly /root/backup.sh

Remote backup

#!/bin/bash
#
## BEGIN CONFIG ##
HOST=$(uname -n)
FILES="/home/openkm"
## END CONFIG ##
echo -e "### BEGIN: $(date +"%x %X") ###\n"

# Stop JBoss
/etc/init.d/jboss stop
while [ "$(ps -ef | grep java | grep jboss | wc -l)" -gt "0" ]; do
  sleep 5; echo ".";
done

# Copy to backup server
ssh backup@server "cd $HOST; rm -rf backup.3; mv backup.2 backup.3; mv backup.1 backup.2; mv backup.0 backup.1"
rsync -apzhR --stats --delete --exclude=*~ --delete-excluded --link-dest="/home/backup/$HOST/backup.1" $FILES backup@server:/home/backup/
$HOST/backup.0

# Start JBoss
/etc/init.d/jboss start
echo -e "\n### END: $(date +"%x %X") ###"

Local backup to usb disk

#!/bin/bash
#
## BEGIN CONFIG ##
MYSQL_PASS=""
JBOSS_HOME="/home/openkm/jboss-4.2.3.GA"
DATABASE_EXP="/home/openkm/db"
BACKUP_DIR="/media/Backup"
FILES="$JBOSS_HOME $DATABASE_EXP"
## END CONFIG ##

if [ $(id -u) != 0 ]; then echo "Yu should run this script as root"; exit; fi

# Mount disk
mount $BACKUP_DIR

echo -e "### BEGIN: $(date +"%x %X") ###\n"
rm -rf $DATABASE_EXP
mkdir -p $DATABASE_EXP

# Stop JBoss
/etc/init.d/jboss stop

while [ "$(ps -ef | grep java | grep jboss | wc -l)" -gt "0" ]; do
  sleep 5; echo ".";
done

# Clean logs
echo "Clean JBoss temporal files."
rm -rf $JBOSS_HOME/server/default/log
rm -rf $JBOSS_HOME/server/default/tmp
rm -rf $JBOSS_HOME/server/default/work

# Backup de MySQL
if [ -n "$MYSQL_PASS" ]; then
  MYSQL_DBS=$(mysqlshow -h localhost -u root -p$MYSQL_PASS | awk '(NR > 2) && (/[a-zA-Z0-9]+[ ]+[|]/) && ($2 != "mysql") && ($2 != "test") && ($2 != "information_schema") { print $2 }');
  
  for DB in $MYSQL_DBS ; do
    echo "* Backuping MySQL data from $DB...";
    mysqldump -h localhost -u root -p$MYSQL_PASS $DB > $DATABASE_EXP/mysql_$DB.sql
  done
  echo "-------------------------------------";
fi

# Rotate and copy files
cd $BACKUP_DIR; rm -rf mv backup.3 backup.4; mv backup.2 backup.3; mv backup.1 backup.2; mv backup.0 backup.1; cd
rsync -apzhR --stats --delete --exclude=*~ --exclude="$JBOSS_HOME/cache" --delete-excluded --link-dest="$BACKUP_DIR/backup.1" $FILES "$BACKUP_DIR/backup.0"

# Start JBoss
/etc/init.d/jboss start
echo -e "\n### END: $(date +"%x %X") ###"

# Status
echo "=================================";
du -hs $BACKUP_DIR
echo "*********************************";
du -hs --time $BACKUP_DIR/*
echo "=================================";
df -h | grep "$BACKUP_DIR"
echo "=================================";

# Umount disk
sync
umount $BACKUP_DIR