Cách sao lưu backup tự động database MySQL - Auto MySQL Backup

# Backup mysql databases into seperate files
USER="mysql-username"
PASSWORD="mysql-password"
OUTPUTDIR="/path/to/db/backup/dir"
MYSQLDUMP="/usr/bin/mysqldump"
MYSQL="/usr/bin/mysql"
NOW=$(date +"%m-%d-%Y")
MSG="Just to let you know that a full backup of db has been made onto the VPS.Kind Regards"
# Remove previous backups
rm "$OUTPUTDIR/*bak" > /dev/null 2>&1
# get a list of databases
databases=`$MYSQL --user=$USER --password=$PASSWORD -e "SHOW DATABASES;" | tr -d "| " | grep -v Database`
# dump each database in turn
for db in $databases; do
 echo $db
 $MYSQLDUMP --force --opt --user=$USER --password=$PASSWORD --databases $db > "$OUTPUTDIR/$db.bak"
done
# emaili reminder of backup
echo $MSG | mail -s "VPS Server Backup - Backup Created on $NOW" your@kenhsinhvien.net

crontab -l

crontab -e

chmod +x /path/to/backup-script.sh
sh /path/to/backup-script.sh

#!/bin/bash
#
# Username to access the MySQL
USERNAME=ten_user_database

# Username to access the MySQL
PASSWORD=matkhau

# Host name (or IP address) of MySQL
DBHOST=localhost

# danh sach database can backup "DB1 DB2 DB3"
DBNAMES="ten_database"

# thu muc chua file backup
BACKUPDIR="/anphuoc/backup"

# sau khi backup se goi mail bao cho admin
MAILCONTENT="Da backup database"

# dung luong toi da cua email (4000 = approx 5MB email)
MAXATTSIZE="4000"

# Email cua admin la gi?
MAILADDR="mail@domain.com"


# ================================================== ==========

# list database
MDBNAMES="mysql $DBNAMES"

# List of DBNAMES to EXLUCDE if DBNAMES are set to all
DBEXCLUDE=""

# tao database backup
CREATE_DATABASE=yes

# moi database la mot thuc muc luu rieng hay chung
SEPDIR=yes

# can luu giu may ban backup trong tuan?
DOWEEKLY=6

# dinh dang nen la gi?
COMP=gzip

# Compress communications between backup server and MySQL server?
COMMCOMP=no

# co luu giu ban backup gan day trong thang ko?
LATEST=no

# The maximum size of the buffer for client/server communication. e.g. 16MB
MAX_ALLOWED_PACKET=

# For connections to localhost. Sometimes the Unix socket file must be specified.
SOCKET=

PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/mysql/bin
DATE=`date +%Y-%m-%d_%Hh%Mm` # Datestamp e.g 2002-09-21
DOW=`date +%A` # Day of the week e.g. Monday
DNOW=`date +%u` # Day number of the week 1 to 7 where 1 represents Monday
DOM=`date +%d` # Date of the Month e.g. 27
M=`date +%B` # Month e.g January
W=`date +%V` # Week Number e.g 37
VER=2.5 # Version Number
LOGFILE=$BACKUPDIR/$DBHOST-`date +%N`.log # Logfile Name
LOGERR=$BACKUPDIR/ERRORS_$DBHOST-`date +%N`.log # Logfile Name
BACKUPFILES=""
OPT="--quote-names --opt" # OPT string for use with mysqldump ( see man mysqldump )

# Add --compress mysqldump option to $OPT
if [ "$COMMCOMP" = "yes" ];
then
OPT="$OPT --compress"
fi

# Add --compress mysqldump option to $OPT
if [ "$MAX_ALLOWED_PACKET" ];
then
OPT="$OPT --max_allowed_packet=$MAX_ALLOWED_PACKET"
fi

# Create required directories
if [ ! -e "$BACKUPDIR" ] # Check Backup Directory exists.
then
mkdir -p "$BACKUPDIR"
fi

if [ ! -e "$BACKUPDIR/daily" ] # Check Daily Directory exists.
then
mkdir -p "$BACKUPDIR/daily"
fi

if [ ! -e "$BACKUPDIR/weekly" ] # Check Weekly Directory exists.
then
mkdir -p "$BACKUPDIR/weekly"
fi

if [ ! -e "$BACKUPDIR/monthly" ] # Check Monthly Directory exists.
then
mkdir -p "$BACKUPDIR/monthly"
fi

if [ "$LATEST" = "yes" ]
then
if [ ! -e "$BACKUPDIR/latest" ] # Check Latest Directory exists.
then
mkdir -p "$BACKUPDIR/latest"
fi
eval rm -fv "$BACKUPDIR/latest/*"
fi

# IO redirection for logging.
touch $LOGFILE
exec 6>&1 # Link file descriptor #6 with stdout.
# Saves stdout.
exec > $LOGFILE # stdout replaced with file $LOGFILE.
touch $LOGERR
exec 7>&2 # Link file descriptor #7 with stderr.
# Saves stderr.
exec 2> $LOGERR # stderr replaced with file $LOGERR.


# Functions

# Database dump function
dbdump () {
mysqldump --user=$USERNAME --password=$PASSWORD --host=$DBHOST $OPT $1 > $2
return 0
}

# Compression function plus latest copy
SUFFIX=""
compression () {
if [ "$COMP" = "gzip" ]; then
gzip -f "$1"
echo
echo Backup Information for "$1"
gzip -l "$1.gz"
SUFFIX=".gz"
elif [ "$COMP" = "bzip2" ]; then
echo Compression information for "$1.bz2"
bzip2 -f -v $1 2>&1
SUFFIX=".bz2"
else
echo "No compression option set, check advanced settings"
fi
if [ "$LATEST" = "yes" ]; then
cp $1$SUFFIX "$BACKUPDIR/latest/"
fi
return 0
}


# Run command before we begin
if [ "$PREBACKUP" ]
then
echo ================================================== ====================
echo "Prebackup command output."
echo
eval $PREBACKUP
echo
echo ================================================== ====================
echo
fi


if [ "$SEPDIR" = "yes" ]; then # Check if CREATE DATABSE should be included in Dump
if [ "$CREATE_DATABASE" = "no" ]; then
OPT="$OPT --no-create-db"
else
OPT="$OPT --databases"
fi
else
OPT="$OPT --databases"
fi

# Hostname for LOG information
if [ "$DBHOST" = "localhost" ]; then
HOST=`hostname`
if [ "$SOCKET" ]; then
OPT="$OPT --socket=$SOCKET"
fi
else
HOST=$DBHOST
fi

# If backing up all DBs on the server
if [ "$DBNAMES" = "all" ]; then
DBNAMES="`mysql --user=$USERNAME --password=$PASSWORD --host=$DBHOST --batch --skip-column-names -e "show databases"| sed 's/ /%/g'`"

# If DBs are excluded
for exclude in $DBEXCLUDE
do
DBNAMES=`echo $DBNAMES | sed "s/\b$exclude\b//g"`
done

MDBNAMES=$DBNAMES
fi

echo ================================================== ====================
echo AutoMySQLBackup VER $VER
echo https://sourceforge.net/projects/automysqlbackup/
echo
echo Backup of Database Server - $HOST
echo ================================================== ====================

# Test is seperate DB backups are required
if [ "$SEPDIR" = "yes" ]; then
echo Backup Start Time `date`
echo ================================================== ====================
# Monthly Full Backup of all Databases
if [ $DOM = "01" ]; then
for MDB in $MDBNAMES
do

# Prepare $DB for using
MDB="`echo $MDB | sed 's/%/ /g'`"

if [ ! -e "$BACKUPDIR/monthly/$MDB" ] # Check Monthly DB Directory exists.
then
mkdir -p "$BACKUPDIR/monthly/$MDB"
fi
echo Monthly Backup of $MDB...
dbdump "$MDB" "$BACKUPDIR/monthly/$MDB/${MDB}_$DATE.$M.$MDB.sql"
compression "$BACKUPDIR/monthly/$MDB/${MDB}_$DATE.$M.$MDB.sql"
BACKUPFILES="$BACKUPFILES $BACKUPDIR/monthly/$MDB/${MDB}_$DATE.$M.$MDB.sql$SUFFIX"
echo ----------------------------------------------------------------------
done
fi

for DB in $DBNAMES
do
# Prepare $DB for using
DB="`echo $DB | sed 's/%/ /g'`"

# Create Seperate directory for each DB
if [ ! -e "$BACKUPDIR/daily/$DB" ] # Check Daily DB Directory exists.
then
mkdir -p "$BACKUPDIR/daily/$DB"
fi

if [ ! -e "$BACKUPDIR/weekly/$DB" ] # Check Weekly DB Directory exists.
then
mkdir -p "$BACKUPDIR/weekly/$DB"
fi

# Weekly Backup
if [ $DNOW = $DOWEEKLY ]; then
echo Weekly Backup of Database \( $DB \)
echo Rotating 5 weeks Backups...
if [ "$W" -le 05 ];then
REMW=`expr 48 + $W`
elif [ "$W" -lt 15 ];then
REMW=0`expr $W - 5`
else
REMW=`expr $W - 5`
fi
eval rm -fv "$BACKUPDIR/weekly/$DB_week.$REMW.*"
echo
dbdump "$DB" "$BACKUPDIR/weekly/$DB/${DB}_week.$W.$DATE.sql"
compression "$BACKUPDIR/weekly/$DB/${DB}_week.$W.$DATE.sql"
BACKUPFILES="$BACKUPFILES $BACKUPDIR/weekly/$DB/${DB}_week.$W.$DATE.sql$SUFFIX"
echo ----------------------------------------------------------------------

# Daily Backup
else
echo Daily Backup of Database \( $DB \)
echo Rotating last weeks Backup...
eval rm -fv "$BACKUPDIR/daily/$DB/*.$DOW.sql.*"
echo
dbdump "$DB" "$BACKUPDIR/daily/$DB/${DB}_$DATE.$DOW.sql"
compression "$BACKUPDIR/daily/$DB/${DB}_$DATE.$DOW.sql"
BACKUPFILES="$BACKUPFILES $BACKUPDIR/daily/$DB/${DB}_$DATE.$DOW.sql$SUFFIX"
echo ----------------------------------------------------------------------
fi
done
echo Backup End `date`
echo ================================================== ====================


else # One backup file for all DBs
echo Backup Start `date`
echo ================================================== ====================
# Monthly Full Backup of all Databases
if [ $DOM = "01" ]; then
echo Monthly full Backup of \( $MDBNAMES \)...
dbdump "$MDBNAMES" "$BACKUPDIR/monthly/$DATE.$M.all-databases.sql"
compression "$BACKUPDIR/monthly/$DATE.$M.all-databases.sql"
BACKUPFILES="$BACKUPFILES $BACKUPDIR/monthly/$DATE.$M.all-databases.sql$SUFFIX"
echo ----------------------------------------------------------------------
fi

# Weekly Backup
if [ $DNOW = $DOWEEKLY ]; then
echo Weekly Backup of Databases \( $DBNAMES \)
echo
echo Rotating 5 weeks Backups...
if [ "$W" -le 05 ];then
REMW=`expr 48 + $W`
elif [ "$W" -lt 15 ];then
REMW=0`expr $W - 5`
else
REMW=`expr $W - 5`
fi
eval rm -fv "$BACKUPDIR/weekly/week.$REMW.*"
echo
dbdump "$DBNAMES" "$BACKUPDIR/weekly/week.$W.$DATE.sql"
compression "$BACKUPDIR/weekly/week.$W.$DATE.sql"
BACKUPFILES="$BACKUPFILES $BACKUPDIR/weekly/week.$W.$DATE.sql$SUFFIX"
echo ----------------------------------------------------------------------

# Daily Backup
else
echo Daily Backup of Databases \( $DBNAMES \)
echo
echo Rotating last weeks Backup...
eval rm -fv "$BACKUPDIR/daily/*.$DOW.sql.*"
echo
dbdump "$DBNAMES" "$BACKUPDIR/daily/$DATE.$DOW.sql"
compression "$BACKUPDIR/daily/$DATE.$DOW.sql"
BACKUPFILES="$BACKUPFILES $BACKUPDIR/daily/$DATE.$DOW.sql$SUFFIX"
echo ----------------------------------------------------------------------
fi
echo Backup End Time `date`
echo ================================================== ====================
fi
echo Total disk space used for backup storage..
echo Size - Location
echo `du -hs "$BACKUPDIR"`
echo
echo ================================================== ====================
echo If you find AutoMySQLBackup valuable please make a donation at
echo https://sourceforge.net/projects/automysqlbackup/
echo ================================================== ====================

# Run command when we're done
if [ "$POSTBACKUP" ]
then
echo ================================================== ====================
echo "Postbackup command output."
echo
eval $POSTBACKUP
echo
echo ================================================== ====================
fi

#Clean up IO redirection
exec 1>&6 6>&- # Restore stdout and close file descriptor #6.
exec 1>&7 7>&- # Restore stdout and close file descriptor #7.

if [ "$MAILCONTENT" = "files" ]
then
if [ -s "$LOGERR" ]
then
# Include error log if is larger than zero.
BACKUPFILES="$BACKUPFILES $LOGERR"
ERRORNOTE="WARNING: Error Reported - "
fi
#Get backup size
ATTSIZE=`du -c $BACKUPFILES | grep "[[:digit:][:space:]]total$" |sed s/\s*total//`
if [ $MAXATTSIZE -ge $ATTSIZE ]
then
BACKUPFILES=`echo "$BACKUPFILES" | sed -e "s# # -a #g"` #enable multiple attachments
mutt -s "$ERRORNOTE MySQL Backup Log and SQL Files for $HOST - $DATE" $BACKUPFILES $MAILADDR < $LOGFILE #send via mutt
else
cat "$LOGFILE" | mail -s "WARNING! - MySQL Backup exceeds set maximum attachment size on $HOST - $DATE" $MAILADDR
fi
elif [ "$MAILCONTENT" = "log" ]
then
cat "$LOGFILE" | mail -s "MySQL Backup Log for $HOST - $DATE" $MAILADDR
if [ -s "$LOGERR" ]
then
cat "$LOGERR" | mail -s "ERRORS REPORTED: MySQL Backup error Log for $HOST - $DATE" $MAILADDR
fi
elif [ "$MAILCONTENT" = "quiet" ]
then
if [ -s "$LOGERR" ]
then
cat "$LOGERR" | mail -s "ERRORS REPORTED: MySQL Backup error Log for $HOST - $DATE" $MAILADDR
cat "$LOGFILE" | mail -s "MySQL Backup Log for $HOST - $DATE" $MAILADDR
fi
else
if [ -s "$LOGERR" ]
then
cat "$LOGFILE"
echo
echo "###### WARNING ######"
echo "Errors reported during AutoMySQLBackup execution.. Backup failed"
echo "Error log below.."
cat "$LOGERR"
else
cat "$LOGFILE"
fi
fi

if [ -s "$LOGERR" ]
then
STATUS=1
else
STATUS=0
fi

# Clean up Logfile
eval rm -f "$LOGFILE"
eval rm -f "$LOGERR"

exit $STATUS