63 lines
1.9 KiB
Bash
63 lines
1.9 KiB
Bash
#!/bin/bash
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##
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# Sync with remote server and create btrfs snapshots
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#
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# This scripts uses rsync to sync remote directories with a local copy
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# After every successful sync a readonly btrfs snapshot of this copy is
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# created
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#
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# This script requires root privileges! Consider using public key auth-
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# entification with SSH and allow root logins only with a private key:
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#
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# On remote side:
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# echo "PermitRootLogin without-password" >> /etc/ssh/sshd_config:
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#
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# On local side:
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# sudo ssh-keygen
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# sudo cat /root/.ssh/id_dsa.pub | ssh user@remote 'cat >> /root/.ssh/authorized_keys'
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#
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# @copyright 2013 Steffen Vogel
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# @license http://www.gnu.org/licenses/gpl.txt GNU Public License
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# @author Steffen Vogel <info@steffenvogel.de>
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# @link http://www.steffenvogel.de
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##
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##
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# This script is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# any later version.
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#
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# This script is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this script. If not, see <http://www.gnu.org/licenses/>.
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##
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function usage {
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echo "Usage: $(basename $0) REMOTE LOCAL"
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echo
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echo " REMOTE a rsync source path/server"
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echo " LOCAL the local destination directory"
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exit 1
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}
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set -e
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if [ $# -ne 2 ]; then
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usage
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fi
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HOST=$1
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DIR=$2
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DATE=$(date +%F_%H-%M-%S)
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EXCLUDE=/dev,/proc,/sys,/tmp,/run,/mnt,/media,/lost+found
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# sync with remote
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rsync -aAX --delete root@$HOST:/ $DIR/latest --exclude={$EXCLUDE}
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# create new readonly snapshot
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btrfs subvolume snapshot -r $DIR/latest $DIR/$DATE
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