Adding Plugins to the MariaDB Docker Official Image

MariaDB has many plugins. Most are not enabled by default, some are in the mariadb container, while others need to be installed from additional packages.

The following methods summarize Installing plugins in the MariaDB Docker Library Container (mariadb.org blog post) on this topic.

Which Plugins Does the Container Contain?

To see which plugins are available in the mariadb:

Enabling a Plugin Using Flags

Using the --plugin-load-add flag with the plugin name (can be repeated), the plugins will be loaded and ready when the container is started:

For example, to enable the simple\_password\_check plugin:

Enabling a Plugin in the Configuration Files

plugin-load-add` can be used as a configuration option to load plugins. The example below loads the .

Install a Plugin Using SQL in /docker-entrypoint-initdb.d

can be used to install a plugin as part of the database initialization.

Create the SQL file used in initialization:

In this case, the my\_initdb is a /docker-entrypoint-initdb.d directory per "Initializing a fresh instance" section above.

Identifying Additional Plugins in Additional Packages

A number of plugins are in separate packages to reduce their installation size. The package names of MariaDB-created plugins can be determined using the following command:

Creating an Image With Plugins From Additional Packages

A new image needs to be created when using additional packages. The mariadb image can however be used as a base:

In the following, the is installed:

Installing plugins from packages creates a configuration file in the directory /etc/mysql/mariadb.conf.d/ that loads the plugin on startup.

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