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Restore rsnapshot Backup

If a rsync or rsnapshot backup has to be restored, it has to be done very fast. Therefore we have created enclosed scripts to restore the data as fast as possible. Both scripts can be executed in parallel to restore the web and email data at the same time. The script starts several parallel processes to accelerate the restore. The prerequisite is that the backup server can access the target server via an SSH key.

Requirements:
– rsnapshot backup
– SSH key stored at the target server
– Plesk server

The script starts x specified rsync processes. The script can be customized for any path. E.g. “realpath” can be customized TO “/var/lib/mysql” to restore each database from file backup individually. With sshkey you can also exchange SSH backup key.

Restore web files (webrestore.sh):

#!/bin/bash

#Settings
process_limit=120						# Max amount of rsync processes
server="sr00"							# Server according to Backup path /volume1/backup/{$server}
daily="0"							# Daily number according to backup path starting with 0 like daily.0 /volume1/backup/$server/daily.{$daily}
remote="sr00.firestorm.ch"					# URL or IP of Target Server.
sshkey="/root/.ssh/backupkey"					# Rsync SSH Key
backuppath="/volume1/backup/$server/daily.$daily/$server"	# Source backup path from rsnapshot	(No tailing slashes)
realpath="/var/www/vhosts"					# Server Source location	        (No tailing slashes)

#Processes Array
processes=()

function check_processes {
  #For Each Rsync Process
  for pid in "${processes[@]}"; do
    #If Process has died / ended
    if ! ps -p $pid > /dev/null ; then
      #For Each Numbered Process Array
      for i in "${!processes[@]}"; do
        #If numberes Process equals died process
        if [[ ${processes[i]} = $pid ]]; then
          #Remove Process from array
          unset 'processes[i]'
        fi
      done
    fi
  done
}

#For Each Website in Backup
for folder in $backuppath$realpath/* ; do
  domain="$(basename $folder)"
  /bin/echo "##############################"

  #wait if more than 30 processes
  while [ ${#processes[@]} -gt $process_limit ]
  do
    check_processes
    /bin/sleep 5s
  done
    
  /bin/echo "/bin/rsync --stats --progress -avz --delete $folder/ root@$server.firestorm.ch:$realpath/$domain/ (${#processes[@]} / $process_limit)"
  /bin/rsync --stats --progress -avz --delete -e "ssh -p 22 -i $sshkey" $folder/ root@$remote:$realpath/$domain/ &
  processes+=($!)
done

Restore email data (webrestore.sh):

#!/bin/bash

#Settings
process_limit=120						# Max amount of rsync processes
server="sr00"							# Server according to Backup path /volume1/backup/{$server}
daily="0"							# Daily number according to backup path starting with 0 like daily.0 /volume1/backup/$server/daily.{$daily}

remote="sr00.firestorm.ch"                                      # URL or IP of Target Server.
sshkey="/root/.ssh/backupkey"		  	                # Rsync SSH Key
backuppath="/volume1/backup/$server/daily.$daily/$server"	# Source backup path		(No tailing slashes)
realpath="/var/qmail/mailnames"					# Server Source location	(No tailing slashes)

#Processes Array
processes=()

function check_processes {
  #For Each Rsync Process
  for pid in "${processes[@]}"; do
    #If Process has died / ended
    if ! ps -p $pid > /dev/null ; then
      #For Each Numbered Process Array
      for i in "${!processes[@]}"; do
        #If numberes Process equals died process
        if [[ ${processes[i]} = $pid ]]; then
          #Remove Process from array
          unset 'processes[i]'
        fi
      done
    fi
  done
}

#For Each Mailname in Backup
for folder in $backuppath$realpath/* ; do
  domain="$(basename $folder)"
  /bin/echo "##############################"

  #wait if more than 30 processes
  while [ ${#processes[@]} -gt $process_limit ]
  do
    check_processes
    /bin/sleep 5s
  done
    
  /bin/echo "/bin/rsync --stats --progress -avz --delete $folder/ root@$server.firestorm.ch:$realpath/$domain/ (${#processes[@]} / $process_limit)"
  /bin/rsync --stats --progress -avz --delete -e "ssh -p 22 -i $sshkey" $folder/ root@$remote:$realpath/$domain/ &
  processes+=($!)
done

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