#!/bin/bash

# Variables
WEBSITES="/var/www"
BACKUP_ROOT_WEBSITES="/backup/websites"
BACKUP_WEBSITES_RETENTION=10

# Starting websites backup
echo "Starting websites backup process ..."

# Create directories if not exists
mkdir -p ${BACKUP_ROOT_WEBSITES}
HOUR=`date +%Y%m%d%H%M`

# Create archive
for website in `ls ${WEBSITES}`;
do
    tar czf ${BACKUP_ROOT_WEBSITES}/${website}\_${HOUR}.tar.gz ${WEBSITES}/${website}
    if [ $? -ne 0 ]; then
        echo "ERROR - Archiving website \"${website}\""
    fi
done

# Purge old backup
echo "Starting websites purge process for backup older than ${BACKUP_WEBSITES_RETENTION} ..."
find ${BACKUP_ROOT_WEBSITES} -type f -mtime +${BACKUP_WEBSITES_RETENTION} -exec rm -f {} \;