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A bash script to simplify backup management with duplicity (encrypted incremental backups on amazon S3)
#!/bin/bash
export AWS_ACCESS_KEY_ID=YOUR_ACCESS_KEY
export AWS_SECRET_ACCESS_KEY=YOUR_SECRET_ACCESS_KEY
export PASSPHRASE=YOU_PASSHRASE
# directories, space separated
SOURCE="/home/thomas/backup /home/thomas/bin /home/thomas/documents"
BUCKET=s3+http://mybucket
LOGFILE=/home/thomas/tmp/duplicity.log
# set email to receive a backup report
EMAIL=""
backup() {
INCLUDE=""
for CDIR in $SOURCE
do
TMP=" --include ${CDIR}"
INCLUDE=${INCLUDE}${TMP}
done
# perform an incremental backup to root, include directories, exclude everything else, / as reference.
duplicity --full-if-older-than 30D $INCLUDE --exclude '**' / $BUCKET > $LOGFILE
if [ -n "$EMAIL" ]; then
mail -s "backup report" $EMAIL < $LOGFILE
fi
}
list() {
duplicity list-current-files $BUCKET
}
restore() {
if [ $# = 2 ]; then
duplicity restore --file-to-restore $1 $BUCKET $2
else
duplicity restore --file-to-restore $1 --time $2 $BUCKET $3
fi
}
status() {
duplicity collection-status $BUCKET
}
if [ "$1" = "backup" ]; then
backup
elif [ "$1" = "list" ]; then
list
elif [ "$1" = "restore" ]; then
if [ $# = 3 ]; then
restore $2 $3
else
restore $2 $3 $4
fi
elif [ "$1" = "status" ]; then
status
else
echo "
duptools - manage duplicity backup
USAGE:
./duptools.sh backup
./duptools.sh list
./duptools.sh status
./duptools.sh restore file [time] dest
"
fi
export AWS_ACCESS_KEY_ID=
export AWS_SECRET_ACCESS_KEY=
export PASSPHRASE=
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