Redmine

h1. Backing up and restoring Redmine

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h2. Backup

Redmine backups should include:

* Database

* Attachments (stored in the @files@ directory under the installation directory by default)

h3. Backing up database

h4. MySQL

The @mysqldump@ command can be used to backup the contents of your MySQL database to a text file. For example:

<pre>

/usr/bin/mysqldump -u <username> -p<password> -h <hostname> <redmine_database> > /path/to/backup/db/redmine.sql

</pre>

You can find @<username>@, @<password>@, @<hostname>@, and @<redmine_database>@ in the file @config/database.yml@. @<host_name>@ may not be required depending on your installation of the database.

h4. PostgreSQL

The @pg_dump@ command can be used to backup the contents of a PostgreSQL database to a text file. Here is an example:

<pre>

/usr/bin/pg_dump -U <username> -h <hostname> -Fc --file=redmine.sqlc <redmine_database>

</pre>

You can find @<username>@, @<hostname>@, and @<redmine_database>@ in the file @config/database.yml@. @<hostname>@ may not be required depending on your installation of the database. The @pg_dump@ command will prompt you to enter the password when necessary.

h4. SQLite

SQLite databases are all contained in a single file, so you can back them up by copying the file to another location.

You can determine the file name of SQLite database by looking at @config/database.yml@.

h3. Backing up attachments

All file uploads are stored in @attachments_storage_path@ (defaults to the @files/@ directory). You can copy the contents of this directory to another location to easily back it up.

+WARNING:+ @attachments_storage_path@ may point to a different directory other than @files/@. Be sure to check the setting in @$RAILS_ROOT/$RAILS_ROOT/config/configuration.yml@ to avoid making a useless backup.

This file may not exist (status: Redmine v5.0.4), it exist a template @$RAILS_ROOT/config/configuration.yml.example@ to change

the standard values, copy this file and rename it to @$RAILS_ROOT/$RAILS_ROOT/configuration.yml@.

In my installation via Debian package, the attached files are stored in

@/var/lib/redmine/default/files@.

You can find this folder by file search, attach a file to wiki-page or add a document to a project and look for "*_filename.filextention", in my case the stored file start with 12 digits: <@yymmddhhmmss@>.

Interesting is also where the file @Gemfile.lock@ is located, for me it was two levels above in the folder hierarchy: @/var/lib/redmine/files@

Keep also in mind, you may you have plugins installed that my have a different storage location, in my case it is the plugin "DMSF":https://www.redmine.org/plugins/redmine_dmsf.

h3. Sample backup script

Here is a simple shell script that can be used for daily backups (assuming you're using a MySQL database):

<pre>

# Database

/usr/bin/mysqldump -u <username> -p<password> <redmine_database> | gzip > /path/to/backup/db/redmine_`date +%Y-%m-%d`.gz

# Attachments

rsync -a /path/to/redmine/files /path/to/backup/files

</pre>

h2. Restore

h3. Restoring a database

h4. MySQL

For example if you have a gziped dump file with the name @2018-07-30.gz@, then the database can be restored with the following command:

<pre>

gunzip -c 2018-07-30.gz | mysql -u <username> --password <redmine_database>

Enter password:

</pre>

h4. PostgreSQL

When the option @-Fc@ of the command @pg_dump@ is used like it is at the above example then you need to use the command @pg_restore@:

<pre>

pg_restore -U <username> -h <hostname> -d <redmine_database> redmine.sqlc

</pre>

otherwise a text file can be restored with @psql@:

<pre>

psql <redmine_database> < <infile>

</pre> 

h4. SQLite

Copy the database file from the backup location.