#!/bin/sh

BACKUPDIR=/home/backups/mysql
LOGFILE=${BACKUPDIR}/my_dump_mysql.log
SENDZABBIX="zabbix_sender --config /usr/local/etc/zabbix6/zabbix_agentd.conf --key mysql.backups"
HOSTNAME=$(hostname -f | cut -d '.' -f 1,2)
backup_success=1

mkdir -p ${BACKUPDIR}
rm -f ${LOGFILE};

for i in $(mysql --skip-column-names --silent --raw --execute 'show databases;' | grep --invert-match Database);
do
  printf " ---> backing up %s..." "$i" >> ${LOGFILE}
  mysqldump --add-drop-table --add-locks --create-options --disable-keys --extended-insert --single-transaction\
    --databases --lock-tables --quick --set-charset "$i" | lbzip2 > "$BACKUPDIR/$i.sql.bz2" 2>> ${LOGFILE};
  if [ $? ];
  then
    echo " OK" >> ${LOGFILE};
  else
    backup_success=0
  fi
done

if [ $backup_success -eq 1 ]
then
	${SENDZABBIX} --value 0 >/dev/null
else
	${SENDZABBIX} --value 1 >/dev/null
fi