#!/bin/bash
#
#
# purpose: create mysql backup for all db's
# has to have nagios-plugins installed
# has to have GPG key already generated
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
INIT_CHECK () {
if [ "`id -u`" -gt "0" ]; then
echo "Run script as SuperUser (root), please..."
fi
}
# Hostname
MyHOST="localhost"
MyUSER=''
MyPASS=''
# Servername
SERVER="$HOSTNAME"
# mysqldump options
MYSQLDUMPOPTS="--opt"
# Linux bin paths, change this if it can't be autodetected via which command
MYSQL="$(which mysql)"
MYSQLDUMP="$(which mysqldump)"
CHOWN="$(which chown)"
CHMOD="$(which chmod)"
GZIP="$(which gzip)"
# Backup Dest directory, change this if you have someother location
DEST="/var/backups"
# Main directory where backup will be stored
MBD="$DEST/mysql"
# Get data in dd-mm-yyyy format
NOW="$(date +"%Y-%m-%d-%H-%M")"
#Backup file-name
FNAME="mysql-backup-encrypted-$NOW"
# File to store current backup file
FILE=""
if [ $MyUSER ] && [ $MyPASS ]; then
MyLOGINOPTS="-u $MyUSER -p$MyPASS"
else
MyLOGINOPTS=""
fi
# Store list of databases
DBS=""
#working dir
TMP="/srv/tmp/$NOW"
#Number of archives to keep
n=7
# DO NOT BACKUP these databases
IGGY="information_schema performance_schema"
[ ! -d $MBD ] && mkdir -p $MBD || :
[ ! -d $TMP ] && mkdir -p $TMP || :
# Only root can access it!
$CHOWN root.root -R $DEST $confdir
$CHMOD 600 $DEST $confdir
#remove old
for l in $(find $MBD -maxdepth 1 -type f -name 'mysql-backup*tar.gz*' | sort | head -n -$n); do
rm -f $l
done
#check for freespace
/usr/lib64/nagios/plugins/check_disk -w 70 -c 90 / 1>/dev/null 2>/dev/null
if [ $? -ne 0 ]; then
echo "MySQL Backup Aborted! Disk Space low!" | sendmail -t [email protected]
exit 100
fi
# Get all database list first
DBS="$($MYSQL -h $MyHOST $MyLOGINOPTS -Bse 'show databases')"
for db in $DBS
do
skipdb=-1
if [ "$IGGY" != "" ];
then
for i in $IGGY
do
[ "$db" == "$i" ] && skipdb=1 || :
done
fi
if [ "$skipdb" == "-1" ] ; then
FILE="$db.$SERVER.$NOW.sql"
# do all inone job in pipe,
# connect to mysql using mysqldump for select mysql database
# and pipe it out to gz file in backup dir :)
$MYSQLDUMP -h $MyHOST $MyLOGINOPTS $MYSQLDUMPOPTS $db | gpg --output $TMP/$FILE.gpg --encrypt --recipient [email protected] 1>/dev/null
fi
done
tar czvf $MBD/$FNAME.tar.gz $TMP 1> /dev/null
rm -r $TMP
cp -p $MBD/$FNAME.tar.gz $MBD/weekly/$(date +%W)/full-mysql-encrypted.tar.gz
scp -i "/root/.ssh/sshkey" $MBD/$FNAME.tar.gz [email protected]:/var/backups/$HOSTNAME/latest-full-mysql-encrypted.tar.gz 2>/dev/null 1>/dev/null