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Use `sudo -E -u www-data php occ` everywhere. Motivation: this should work on more appliances like also inside docker containers. Signed-off-by: Simon L. <szaimen@e.mail.de>
68 lines
2.0 KiB
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68 lines
2.0 KiB
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======
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Backup
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======
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To backup a Nextcloud installation there are four main things you need to retain:
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#. The config folder
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#. The data folder
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#. The theme folder
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#. The database
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Maintenance mode
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----------------
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``maintenance:mode`` locks the sessions of logged-in users and prevents new logins in order to prevent inconsistencies of your data. You must run ``occ`` as the HTTP user, like this example on Ubuntu Linux::
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$ sudo -E -u www-data php occ maintenance:mode --on
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You may also put your server into this mode by editing :file:`config/config.php`.
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Change ``"maintenance" => false`` to ``"maintenance" => true``:
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::
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<?php
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"maintenance" => true,
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Don't forget to change it back to ``false`` when you are finished.
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Backup folders
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--------------
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Simply copy your config, data and theme folders (or even your whole Nextcloud install and data folder) to a place outside of
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your Nextcloud environment. You could use this command::
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rsync -Aavx nextcloud/ nextcloud-dirbkp_`date +"%Y%m%d"`/
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Backup database
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---------------
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.. warning:: Before restoring a backup see :doc:`restore`
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MySQL/MariaDB
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^^^^^^^^^^^^^
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MySQL or MariaDB, which is a drop-in MySQL replacement, is the recommended
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database engine. To backup **MySQL**::
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mysqldump --single-transaction -h [server] -u [username] -p[password] [db_name] > nextcloud-sqlbkp_`date +"%Y%m%d"`.bak
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If you use enabled MySQL/MariaDB 4-byte support (:doc:`../configuration_database/mysql_4byte_support`, needed for emoji), you will need to add ``--default-character-set=utf8mb4`` like this::
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mysqldump --single-transaction --default-character-set=utf8mb4 -h [server] -u [username] -p[password] [db_name] > nextcloud-sqlbkp_`date +"%Y%m%d"`.bak
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To backup **MariaDB**, replace `mysqldump` with `mariadb-dump` in the above commands.
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SQLite
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^^^^^^
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::
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sqlite3 data/owncloud.db .dump > nextcloud-sqlbkp_`date +"%Y%m%d"`.bak
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PostgreSQL
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^^^^^^^^^^
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::
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PGPASSWORD="password" pg_dump [db_name] -h [server] -U [username] -f nextcloud-sqlbkp_`date +"%Y%m%d"`.bak
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