77 lines
2.5 KiB
PHP
77 lines
2.5 KiB
PHP
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<?php
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/**
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* Rotational Backup for ALL-INKL.COM
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*
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* Copyright (c) 2018 Helmut Kaczmarek <email@helmutkaczmarek.de>
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*
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* This program 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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* (at your option) any later version.
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*
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* This program 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 program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Features:
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* Creates the following folder structure and rotates it:
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* current -> /path/to/backup/daily.0
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* daily.0
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* daily.1
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* daily.2
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* daily.3
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* daily.4
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* daily.5
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* daily.6
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* daily.7
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*
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* Usage:
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* If the script is to be executed automatically via KAS cron job, it must
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* be accessible on the web. Alternatively, it can be run manually via
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* shell with the following command: "php /path/to/script.php"
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*
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* Pitfall wrong PHP CLI version, then e.g.
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* "/usr/bin/php81 /path/to/script.php" for PHP 8.1
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*
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* Restore folder(s):
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* rsync -avz --progress /backup/folder/ /folder/to/be/restored
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*
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* @author Helmut Kaczmarek <email@helmutkaczmarek.de>
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* @link https://www.helmutkaczmarek.de
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* @todo You could also back up the directories to a remote server via
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* SSH. However, at this point one would probably no longer be dependent on
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* the "trimmed" KAS cron jobs from ALL-INKL.COM. A bash script and crontab
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* would of course be the first choice in this case.
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*/
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// Configuration variables
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$SRC = "/www/htdocs/v0xxxxx/public_websites/";
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$DEST = "/www/htdocs/v0xxxxx/backup/public_websites";
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$NUM_BACKUPS = 7;
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// Creating the directories
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for ($i = 0; $i <= $NUM_BACKUPS; $i++) {
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mkdir($DEST . '/daily.' . $i, 0777, true);
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}
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// Delete the oldest backup
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system('rm -rf ' . $DEST . '/daily.' . $NUM_BACKUPS);
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// Rotation of backups
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for ($i = $NUM_BACKUPS - 1; $i >= 0; $i--) {
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$prev = $i + 1;
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system('mv ' . $DEST . '/daily.' . $i . ' ' . $DEST . '/daily.' . $prev);
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}
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// Creating the new backup
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system('rsync -arl --delete --stats --link-dest=' . $DEST . '/daily.1 ' . $SRC . ' ' . $DEST . '/daily.0');
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// Symlink to the latest backup
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unlink($DEST . '/current');
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symlink($DEST . '/daily.0', $DEST . '/current');
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?>
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