#!/bin/bash
# Задаем системные переменные, чтобы в скрипте не прописывать полные пути.
	PATH=/etc:$PATH/var:$PATH
# Каталог c рабочими данными, которые нужно резервировать.
	source_arch_etc="/etc"
	source_arch_var="/var/www/html"
	source_1="/etc/apache2"
	source_2="/etc/amavis"
	source_3="/etc/clamav"
	source_4="/etc/iptables"
	source_5="/etc/webmin"
	source_6="/etc/netplan"
	source_7="/etc/php"
	source_8="/etc/postfix"
	source_9="/etc/postgrey"
	source_10="/etc/ssl/mail"
	source_11="/var/www/html/webmail"
	source_12="/var/www/html/postfixadmin"
# Корневая папка, где нужно хранить резервные копии.
	destination_root="/mnt/Backup_mail/System"
# Подстановка даты в название архива.
	fdate=$(date +%Y-%m-%d)
# Удаление старых архивов
	find ${destination_root}/archive -type f -name "*.tar.gz" -ctime +65 -exec rm -R {} \; 2>&1
# Ежедневный
	rsync -a --delete-after ${source_1}/ ${destination_root}/daily/etc/apache2/
	rsync -a --delete-after ${source_2}/ ${destination_root}/daily/etc/amavis/
	rsync -a --delete-after ${source_3}/ ${destination_root}/daily/etc/clamav/
	rsync -a --delete-after ${source_4}/ ${destination_root}/daily/etc/iptables/
	rsync -a --delete-after ${source_5}/ ${destination_root}/daily/etc/webmin/
	rsync -a --delete-after ${source_6}/ ${destination_root}/daily/etc/netplan/
	rsync -a --delete-after ${source_7}/ ${destination_root}/daily/etc/php/
	rsync -a --delete-after ${source_8}/ ${destination_root}/daily/etc/postfix/
	rsync -a --delete-after ${source_9}/ ${destination_root}/daily/etc/postgrey/
	rsync -a --delete-after ${source_10}/ ${destination_root}/daily/ssl/mail/
	rsync -a --delete-after ${source_11}/ ${destination_root}/daily/var/www/html/webmail/
	rsync -a --delete-after ${source_12}/ ${destination_root}/daily/var/www/html/postfixadmin/
# Еженедельный
if [[ $(date +%u) -eq 0 ]]
then
	rsync -a --delete-after ${source_1}/ ${destination_root}/weekly/etc/apache2/
	rsync -a --delete-after ${source_2}/ ${destination_root}/weekly/etc/amavis/
	rsync -a --delete-after ${source_3}/ ${destination_root}/weekly/etc/clamav/
	rsync -a --delete-after ${source_4}/ ${destination_root}/weekly/etc/iptables/
	rsync -a --delete-after ${source_5}/ ${destination_root}/weekly/etc/webmin/
	rsync -a --delete-after ${source_6}/ ${destination_root}/weekly/etc/netplan/
	rsync -a --delete-after ${source_7}/ ${destination_root}/weekly/etc/php/
	rsync -a --delete-after ${source_8}/ ${destination_root}/weekly/etc/postfix/
	rsync -a --delete-after ${source_9}/ ${destination_root}/weekly/etc/postgrey/
	rsync -a --delete-after ${source_10}/ ${destination_root}/weekly/ssl/mail/
	rsync -a --delete-after ${source_11}/ ${destination_root}/weekly/var/www/html/webmai/
	rsync -a --delete-after ${source_12}/ ${destination_root}/weekly/var/www/html/postfixadmin/
fi
# Создание архива
	count_last_archives=$(find ${destination_root}/archive/ -name "*.tar.gz" -mtime -30 | wc -l)
if [[ $count_last_archives -eq 0 ]]
then
                  cd ${source_arch_etc}
          tar zcf ${destination_root}/archive/backup_etc${fdate}.tar.gz ./*
		  cd ${source_arch_var}
	  tar zcf ${destination_root}/archive/backup_var${fdate}.tar.gz ./*
fi
# Копирование некоторых файлов
cp /etc/passwd ${destination_root}/daily/etc/
cp /etc/crontab ${destination_root}/daily/etc/
cp /etc/fstab ${destination_root}/daily/etc/
cp /etc/group ${destination_root}/daily/etc/