system-backup.sh

#!/usr/bin/env bash

#
## Este script ejecuta un backup del sistema en Amazon S3
#

export AWS_ACCESS_KEY_ID=""
export AWS_SECRET_ACCESS_KEY=""
export AWS_BACKUP_NAME="example-bucket"

LOGFILE="/var/log/duplicity/backup.log"

if [ ! -d /var/log/duplicity ]; then
  mkdir -p /var/log/duplicity
fi

trace () {
  stamp=`date +%Y-%m-%d_%H:%M:%S`
  echo "$stamp: $*" >> ${LOGFILE}
}

trace "Backup for local filesystem started"

/usr/local/bin/duplicity \
  --s3-use-new-style \
  --s3-european-buckets \
  --no-encryption \
  --verbosity info \
  --full-if-older-than 1M \
  --include=/home/pi \
  --include=/var/www \
  --include=/etc \
  --exclude=/** \
  / s3://s3.amazonaws.com/${AWS_BACKUP_NAME}/ >> ${LOGFILE} 2>&1

trace "Backup for local filesystem complete"
trace "------------------------------------"

unset AWS_ACCESS_KEY_ID
unset AWS_SECRET_ACCESS_KEY
unset AWS_BACKUP_NAME