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#!/bin/bash
#
# This is a simple backup script using duplicity. It's supposed to serve as a
# starting point and to be adjusted to your system.
#
# Important steps:
# - define a host "backup" in root's .ssh/config
# - create the globbing filters or remove the argument to backup()
# - read the script and adjust to your needs
if [[ $UID != 0 ]]; then
echo "Error: need root, restarting with sudo" >&2
exec sudo "$0" "$@"
fi
export HOME=/root
# if you want to encrypt the backups remove --no-encryption in the duplicity call
# and uncomment the lines that contain PASSPHRASE
#PASSPHRASE="randomstringhere"
backup() {
src=$1
dest=$2
shift 2
#export PASSPHRASE
duplicity \
--exclude-other-filesystems \
-v2 \
--volsize 50 \
--allow-source-mismatch \
--asynchronous-upload \
--full-if-older-than 30D \
--no-encryption \
"$@" "$src" "$dest"
duplicity --force remove-older-than 120D "$dest"
#export PASSPHRASE=""
}
backup / pexpect+sftp://backup/$HOSTNAME-backup/root/ --exclude-globbing-filelist /root/duplicity_root_filter
backup /home/ pexpect+sftp://backup/$HOSTNAME-backup/home/ --exclude-globbing-filelist /root/duplicity_home_filter
backup /boot/ pexpect+sftp://backup/$HOSTNAME-backup/boot/
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