Archiviare dei backup con BackupPC

Definizione host fittizio di archiviazione

• Impostare l'host fittizio di backup

sudoedit /etc/backuppc/hosts

archive         0               backuppc        miaemail@dominio.dom

• Creare la cartella nel pool:

sudo mkdir -p /var/lib/backuppc/pc/archive; sudo chown backuppc:www-data /var/lib/backuppc/pc/archive; sudo chmod o-rwx /var/lib/backuppc/pc/archive

Fix per Debian Squeeze

• Con Debian Squeeze, lo script per sottomettere l'archiviazione non permette di comprimere e splittare.

• Copiare lo script:

sudo cp  /usr/share/backuppc/bin/BackupPC_archiveStart /usr/local/sbin/BackupPC_archiveStart.custom

• Modificare come segue:

vi /tmp/patch1.diff

--- /usr/share/backuppc/bin/BackupPC_archiveStart       2009-11-25 16:11:48.000000000 +0100
+++ /usr/local/sbin/BackupPC_archiveStart.custom        2011-11-10 12:39:00.977406468 +0100
@@ -94,10 +94,10 @@
 my %ArchiveReq = (
     archiveloc  => $bpc->{Conf}{ArchiveDest},
     archtype    => 0,
-    compression => $bpc->{Conf}{CatPath},
-    compext     => '.raw',
+    compression => $bpc->{Conf}{ArchiveComp},
+    compext     => $bpc->{Conf}{ArchiveCompExt},
     parfile     => $bpc->{Conf}{ArchivePar},
-    splitsize   => '0000000',
+    splitsize   => $bpc->{Conf}{ArchiveSplit},
     host        => $ArchiveHost,
     HostList    => \@HostList,
     BackupList  => \@BackupList,

cd /usr/local/sbin
patch --dry-run < /tmp/patch1.diff

• Inserire i parametri nel file di config:

sudoedit /etc/backuppc/archive.pl 

$Conf{XferMethod} = 'archive';
$Conf{ClientTimeout} = 172800 ;
$Conf{ArchiveComp} = '/usr/bin/pigz';
$Conf{ArchiveCompExt} = '.gz';
$Conf{ArchiveSplit} = '0';
#$Conf{ArchiveSplit} = '1999M';
$Conf{ArchiveDest} = '/media/archive';
$Conf{ArchivePostUserCmd} = '/usr/local/bin/ArchivePostUserCmd $client $xferOK $
host $HostList $BackupList $moreUsers';

• Creare il file di configurazione

cat | sudo tee /etc/backuppc/archive.pl >/dev/null <<'EOFile'

$Conf{XferMethod} = 'archive';
$Conf{ClientTimeout} = 172800 ;
$Conf{ArchiveComp} = '/usr/bin/pigz';
$Conf{ArchiveCompExt} = '.gz';
$Conf{ArchiveSplit} = '0';
#$Conf{ArchiveSplit} = '1999M';
$Conf{ArchiveDest} = '/media/archive';
$Conf{ArchivePostUserCmd} = '/usr/local/bin/ArchivePostUserCmd $client $xferOK $host $HostList $BackupList $moreUsers'
EOFile

• Creare la directory dove verranno archiviati i files:

Script di notifica

• Creare lo script di notifica

cat | sudo tee /usr/local/bin/ArchivePostUserCmd </dev/null <<'EOFReal'
#!/bin/bash
RECIPIENTS="user1@example.com,user2@example.com"

client="$1"
xferOK="$2"
host="$3"
hostList="$4"
BackupList="$5"
moreUsers="$6"

if [ "$xferOK" -eq 1 ]
then
        SUBJECT="Archiving Succesful on $client"
        MSG=$(cat <<EOFile
The Archiving of $client was succesfull.

Parameters are:
client="$1"
xferOK="$2"
host="$3"
hostList="$4"
BackupList="$5"
moreUsers="$6"
EOFile
)

else
        SUBJECT="Archiving UNSUCCESSFUL on $client"

        MSG=$(cat <<EOFile
The Archiving of $client was UNSUCCESSFUL.

Parameters are:
client="$1"
xferOK="$2"
host="$3"
hostList="$4"
BackupList="$5"
moreUsers="$6"
EOFile
)
fi

echo -e "echo $MSG  mail -s ${SUBJECT} ${RECIPIENTS}
/usr/bin/logger -t BackupPcArchive "${SUBJECT} - ${MSG}"
echo -e $MSG | mail -s "${SUBJECT}" ${RECIPIENTS}
echo -e $MSG | mail -s "${SUBJECT}" ${RECIPIENTS}
/usr/bin/logger -t BackupPcArchive "Umounting device."
sudo umount /dev/sdd1
sudo rmdir /media/archive
EOFReal

• Impostare i destinatari della notifica:

sudoedit /usr/local/bin/ArchivePostUserCmd

• Rendere lo script eseguibile

sudo chmod +x /usr/local/bin/ArchivePostUserCmd

• Riavviare backuppc

sudo invoke-rc.d backuppc restart

• Da interfaccia web, selezionare l'host archive e fare l'archiviazione, oppure lanciarla da command line:

sudo -u backuppc /usr/share/backuppc/bin/BackupPC_archiveStart  archive backuppc host_da_archiviare

• Per utilizzare lo script patchato di Debian Squeeze:

sudo -u backuppc /usr/local/sbin/BackupPC_archiveStart.custom  archive backuppc ${HOSTS2BACKUP}

Archiviazione automatica all'inserimento di un disco usb

• Impostare il mount automatico del disco USB utilizzato per il backup, come indicato in Montare un disco USB automaticamente in Debian

• Assegnare lo script da far eseguire ad udev. Questo provvede a conservare solo gli ultimi 4 backup di ogni host:

sudoedit /usr/local/sbin/BackupPcArchive

#!/bin/bash
/usr/bin/logger -t BackupPcArchive "Udev parameters: ACTION=${ACTION} - DEVICE=${DEVICE}"
/usr/bin/logger -t BackupPcArchive "Starting archiving ..."
/usr/bin/logger -t BackupPcArchive "Creating mount point ..."
sudo mkdir -p /media/archive
/usr/bin/logger -t BackupPcArchive "Mounting device ..."
sudo /bin/umount /media/archive > /dev/null 2>&1
sudo mount /dev/sdd1 /media/archive > /dev/null

# Erase oldest files
cd /media/archive
HOSTS2BACKUP="firemar marsrv01 marstor01"
for BKPHOST in $HOSTS2BACKUP
do
        FILES2DELETE=$( (/bin/ls -1v ${BKPHOST}* 2>/dev/null | /usr/bin/tail -n 4;/bin/ls -1 ${BKPHOST}* 2>/dev/null)| /usr/bin/sort | /usr/bin/uniq -u )
        if [ -n "$FILES2DELETE" ]
        then
                /usr/bin/logger -t BackupPcArchive "Deleting files '$FILES2DELETE'"
                /bin/rm -f $FILES2DELETE
        fi
done

# To run it manually
#/usr/share/backuppc/bin/BackupPC_archiveStart  archive backuppc marsrv01 firemar marstor01


/usr/bin/logger -t BackupPcArchive "Queueing archiving of ${HOSTS2BACKUP} ... "
# This scripts forks in the background
/usr/local/sbin/BackupPC_archiveStart.custom  archive backuppc ${HOSTS2BACKUP}
/usr/bin/logger -t BackupPcArchive "Jobs queued."
# umount and remove mountpoint is done in /usr/local/bin/ArchivePostUserCmd

Riferimenti

• BackupPC Documentation - Archive functions
• StanLarson.com » Getting BackupPC Data Off Site
• Deploying BackupPC on Suse Linux Enterprise Server - pcc-services.com
• #518943 - backuppc: Archive run from commandline does not compress - Debian Bug report logs