#!/bin/bash

## Backup Script Nick Leffler 20190326 ##

servername=$(hostname --fqdn)
date22=$(date +'%Y%m%d_%H%M')
bdir="/opt/backup"
dir="${bdir}/${date22}"
sqlDir="${dir}/mysql"
sshLoc="location_to_rsync_to"

mkdir -p "${dir}" || exit

sqlBackup () {
 mkdir -p "${sqlDir}" || exit
 databases=`mysql -e "SHOW DATABASES;" | grep -Ev "(Database|information_schema|performance_schema)"`
 for db in $databases; do
  mysqldump --force --opt --databases $db > "${sqlDir}/$db.sql"
 done
 mysqldump --all-databases > "${sqlDir}/fullDump.sql"
 tar -Jcf "${dir}/${date22}-mysql.tar.xz" "${sqlDir}" > /dev/null 2>&1
 sleep 4
 rm -rf "${sqlDir}"
}

# SQL Backup
sqlBackup

# etc backup
tar -Jcf "${dir}/${date22}-etc.tar.xz" "/etc/" > /dev/null 2>&1

# root dir backup
tar -Jcf "${dir}/${date22}-root.tar.xz" "/root/" > /dev/null 2>&1

# WWW data backup
tar --exclude='old' -Jcf "${dir}/${date22}-www.tar.xz" "/usr/share/nginx/html/" > /dev/null 2>&1

# Copy to backup server
rsync -vP -a "${bdir}"/ "${sshLoc}:backup/rsync/${servername}/"

# delete backup after moving
rm -rfv "${bdir}/"*

# delete older than 2 days since there's already snapshots
ssh "${sshLoc}" "find backup/rsync/$servername/ -type f -atime +2 -delete; find backup/rsync/$servername/ -type d -empty -delete"