Encrypt database backups

[François Marier]

The database dumps that are left on the server should be gpg-encrypted with my key.

[François Marier (fmarier)]

Here is the new backup script in /usr/local/sbin/libravatar_backups:

#!/bin/sh

DUMP_DIR="/var/backups/libravatar"

# Perform fresh backup
DUMP_FILE="$DUMP_DIR/`date +%Y%m%dT%H%M%S`.pg"
pg_dump -Fc libravatar > $DUMP_FILE
chmod 600 $DUMP_FILE

# Encrypt backup
gpg --recipient 007c98d1 --encrypt $DUMP_FILE
rm $DUMP_FILE

# Purge old backups
find $DUMP_DIR -ctime +7 -delete