====== Automatisches Backup ======

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===== Installation =====
<code>sudo apt-get install duplicity</code>
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===== Crontab =====
<code>0 3 * * * root /opt/backups/backup_duplicity.sh >>/var/log/duplicity.log 2>&1</code>
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===== Backup auf der Hetzner Storagebox =====

Das ganze läuft auf dem Hetzner Server und verbindet sich via SFTP.\\
In /root/.ssh/config:\\
<code>
# backup server
Host storagebox
        HostName u157627.your-storagebox.de
        User u157627
        Port 23
        IdentityFile /root/.ssh/storage_box
</code>
\\
Der SSH-Key liegt also in /root/.ssh/ und heißt "storage_box".\\
\\
Skript in /opt/backups/:\\
<code>
#!/bin/bash

#BACKUPDIR="/home/backups"                # standard Pfad can be overwritten
STORAGEBOX="u157627@storagebox:/144/backups"
#export PASSPHRASE="fix404" # Password for encryption

SCRIPT_DIR="$(dirname "$0")"
SOURCE="$SCRIPT_DIR/backup_files.txt"
EXCLUDE="$SCRIPT_DIR/backup_exclude.txt"

VOLSIZE_IN_MB=200

#DATUM="$(date +%Y%m%d)"          # Date for the monthly backup
#ZEIT="$(date +%H%M)"             # time

# Check free space on storage box?
#freespace=$(df -k $BACKUPDIR |tail -1 |awk '{print $4}')
#if [ $freespace -lt 50000000  ]; then
#               echo not enough space on backup device
#               exit
#fi

# Sichern
duplicity --no-encryption --volsize $VOLSIZE_IN_MB  --full-if-older-than 6D   --exclude-filelist=$EXCLUDE --include-filelist=$SOURCE --exclude='**' / pexpect+sftp://$STORAGEBOX
now=`date`
echo "Finished backup at $now"
# Verifizieren
duplicity verify  --no-encryption  --exclude-filelist=$EXCLUDE --include-filelist=$SOURCE --exclude='**' pexpect+sftp://$STORAGEBOX /
now=`date`
echo "Finished verify at $now"
# Löschen
duplicity remove-older-than 1M  --force --no-encryption pexpect+sftp://$STORAGEBOX
now=`date`
echo "Finished removing at $now"</code>
\\
backup_files.txt:\\
<code>
/etc/**
/opt/**
/home/**
</code>
\\
backup_exclude.txt:\\
<code>
/home/backups/
/home/old_server_backups/
</code>
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===== Status des Backups überprüfen =====
Skript backup_status.sh:\\
<code>
#!/bin/bash

STORAGEBOX="u157627@storagebox:/144/backups"

# Status
duplicity collection-status pexpect+sftp://$STORAGEBOX
</code>