#!/bin/bash
#VDS backup  script by Tomashkov Evgeniy

USER=""
PASSWORD=""
BACKUP=""

OLD=30 #время хранения бэкапа
PREFIX=""  # hostname
DATE=`date '+%Y-%m-%d'`

FILE1=$BACKUP/$DATE-sql-$PREFIX.tar.gz
FILE2=$BACKUP/$DATE-files-$PREFIX.tar.gz
LOG=0

#--------------------------------------------------------------------------------------------------------
#Оповещение в Telegram
BOT_TOKEN=""
CHAT_ID=""
MESSAGE=""

function sendNotification()
{
    wget --tries=3 --timeout=5 -O /dev/null  \
    "https://api.telegram.org/bot${BOT_TOKEN}/sendMessage?chat_id=${CHAT_ID}&text=${MESSAGE}"
}

#-------------------------------------------------------------------------------------------------------
#Бэкапим дамп mysql по базам

function mysqlDump()
{
mkdir $BACKUP/$DATE.sql
cd $BACKUP/$DATE.sql
for i in `mysql -u $USER -p$PASSWORD -e'show databases;' | grep -v information_schema | grep -v Database`;
        do mysqldump -u $USER -p$PASSWORD $i > $DATE-$i.sql
done

cd ..
tar -czf $BACKUP/$DATE-sql-$PREFIX.tar.gz ./$DATE.sql
rm -rf ./$DATE.sql
}

#--------------------------------------------------------------------------------------------------------
#Бэкапим файлы

function filesBackup()
{
tar -czf $BACKUP/$DATE-files-$PREFIX.tar.gz  \
    /root/ \
    /var/www/ \
    /etc/ \
    /var/log/ \
    --exclude=$BACKUP
}

#-------------------------------------------------------------------------------------------------------
#Проверка, логирование и оповещение
function checkFiles()
{
if [ -f $FILE1 ] && [ -f $FILE2 ]
then
        LOG=$[LOG+1]
fi

if [ -s $FILE1 ] && [ -s $FILE2 ]
then
        LOG=$[LOG+1]
fi

if [ "$LOG" -eq "2" ]
    then
    echo "$DATE Backup [OK] Total size: $(du -h $BACKUP | awk '{print $1}')" >> /var/log/backup_vds.log && \
    MESSAGE=$(echo "Warpgate weekly backup [OK]")
else
    exec 2 >> /var/log/backup_vds.log && \
    echo "$DATE Backup [FAIL]"  >> /var/log/backup_vds.log  && \
    MESSAGE=$(echo "Warpgate weekly backup [FAIL]")
fi
}

#-------------------------------------------------------------------------------------------------------------------
#Удаляем старые бэкапы
function oldDel()
{
find $BACKUP -mtime +$OLD -exec rm '{}' \;
}

mysqlDump && filesBackup && checkFiles && sendNotification && oldDel