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The LinuxServer.io team brings you another container release featuring easy user mapping and community support. Find us for support at:

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Podcast covers everything to do with getting the most from your Linux Server plus a focus on all things Docker and containerisation!

linuxserver/mariadb

One of the most popular database servers. Made by the original developers of MySQL

Usage

docker create \
--name=mariadb \
-p 3306:3306 \
-e PUID=<UID> \
-e PGID=<GID> \
-e MYSQL_ROOT_PASSWORD=<DATABASE PASSWORD> \
-e TZ=<timezone> \
-v </path/to/appdata>:/config \
linuxserver/mariadb

Parameters

The parameters are split into two halves, separated by a colon, the left hand side representing the host and the right the container side. For example with a port -p external:internal - what this shows is the port mapping from internal to external of the container. So -p 8080:80 would expose port 80 from inside the container to be accessible from the host's IP on port 8080 http://192.168.x.x:8080 would show you what's running INSIDE the container on port 80.

-p 3306 - mysql port
-v /config - Contains the db itself and all assorted settings.
-e MYSQL_ROOT_PASSWORD - set this to root password for installation (minimum 4 characters)
-e PGID for GroupID - see below for explanation
-e PUID for UserID - see below for explanation
-e TZ - for timezone information eg Europe/London, etc

It is based on ubuntu xenial with s6 overlay, for shell access whilst the container is running do docker exec -it mariadb /bin/bash.

User / Group Identifiers

Sometimes when using data volumes (-v flags) permissions issues can arise between the host OS and the container. We avoid this issue by allowing you to specify the user PUID and group PGID. Ensure the data volume directory on the host is owned by the same user you specify and it will "just work" ™.

In this instance PUID=1001 and PGID=1001. To find yours use id user as below:

  $ id <dockeruser>
    uid=1001(dockeruser) gid=1001(dockergroup) groups=1001(dockergroup)

Setting up the application

If you didn't set a password during installation, (see logs for warning) use mysqladmin -u root password <PASSWORD> to set one at the docker prompt...

NOTE changing the MYSQL_ROOT_PASSWORD variable after the container has set up the initial databases has no effect, use the mysqladmin tool to change your mariadb password.

Unraid users, it is advisable to edit the template/webui after setup and remove reference to this variable.

Find custom.cnf in /config for config changes (restart container for them to take effect) , the databases in /config/databases and the log in /config/log/myqsl

Info

Shell access whilst the container is running: docker exec -it mariadb /bin/bash
To monitor the logs of the container in realtime: docker logs -f mariadb
container version number

docker inspect -f '{{ index .Config.Labels "build_version" }}' mariadb

image version number

docker inspect -f '{{ index .Config.Labels "build_version" }}' linuxserver/mariadb

Versions

26.01.19: Add pipeline logic and multi arch.
10.09.18: Rebase to ubuntu bionic and use 10.3 mariadb repository.
09.12.17: Fix continuation lines.
12.09.17: Gracefully shut down mariadb
27.10.16: Implement linting suggestions on database init script.
11.10.16: Rebase to ubuntu xenial, add version labelling.
09.03.16: Update to mariadb 10.1. Change to use custom.cnf over my.cnf in /config. Restructured init files to change config options on startup, rather than in the dockerfile.
26.01.16: Change user of mysqld_safe script to abc, better unclean shutdown handling on restart.
23.12.15: Remove autoupdating, between some version updates the container breaks
12.08.15: Initial Release.

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