The LinuxServer.io team brings you another container release featuring:

• regular and timely application updates
• easy user mappings (PGID, PUID)
• custom base image with s6 overlay
• weekly base OS updates with common layers across the entire LinuxServer.io ecosystem to minimise space usage, down time and bandwidth
• regular security updates

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• Blog - all the things you can do with our containers including How-To guides, opinions and much more!
• Discord - realtime support / chat with the community and the team.
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linuxserver/mariadb

Mariadb is one of the most popular database servers. Made by the original developers of MySQL.

Supported Architectures

We utilise the docker manifest for multi-platform awareness. More information is available from docker here and our announcement here.

Simply pulling lscr.io/linuxserver/mariadb:latest should retrieve the correct image for your arch, but you can also pull specific arch images via tags.

The architectures supported by this image are:

Application Setup

If you didn't set a password during installation, (see logs for warning) use mariadb-admin -u root -p<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.

NOTE if you want to use (MYSQL_DATABASE MYSQL_USER MYSQL_PASSWORD) all three of these variables need to be set you cannot pick and choose.

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

Loading passwords and users from files

The MYSQL_ROOT_PASSWORD MYSQL_DATABASE MYSQL_USER MYSQL_PASSWORD REMOTE_SQL env values can be set in a file:

/config/env

Using the following format:

MYSQL_ROOT_PASSWORD="ROOT_ACCESS_PASSWORD"
MYSQL_DATABASE="USER_DB_NAME"
MYSQL_USER="MYSQL_USER"
MYSQL_PASSWORD="DATABASE_PASSWORD"
REMOTE_SQL="http://URL1/your.sql,https://URL2/your.sql"

These settings can be mixed and matched with Docker ENV settings as you require, but the settings in the file will always take precedence.

Bootstrapping a new instance

We support a one time run of custom sql files on init. In order to use this place *.sql files in:

/config/initdb.d/

This will have the same effect as setting the REMOTE_SQL environment variable. The sql will only be run on the containers first boot and setup.

Check and Repair

If user databases are not in a healthy state (sometimes caused by a failed upgrade), it may be remedied by running:

mariadb-check -u root -p<PASSWORD> -c -A # check all databases for errors
mariadb-check -u root -p<PASSWORD> -r -A # repair all databases
mariadb-check -u root -p<PASSWORD> -a -A # analyze all databases
mariadb-check -u root -p<PASSWORD> -o -A # optimize all databases

After running the above commands, you may need to run the upgrade command again.

Upgrading

When this container initializes, if MYSQL_ROOT_PASSWORD is set an upgrade check will run. If an upgrade is required the log will indicate the need stop any services that are accessing databases in this container, and then run the command:

mariadb-upgrade -u root -p<PASSWORD>

Usage

Here are some example snippets to help you get started creating a container.

docker-compose (recommended, click here for more info)

---
version: "2.1"
services:
  mariadb:
    image: lscr.io/linuxserver/mariadb:latest
    container_name: mariadb
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=Etc/UTC
      - MYSQL_ROOT_PASSWORD=ROOT_ACCESS_PASSWORD
      - MYSQL_DATABASE=USER_DB_NAME #optional
      - MYSQL_USER=MYSQL_USER #optional
      - MYSQL_PASSWORD=DATABASE_PASSWORD #optional
      - REMOTE_SQL=http://URL1/your.sql,https://URL2/your.sql #optional
    volumes:
      - path_to_data:/config
    ports:
      - 3306:3306
    restart: unless-stopped

docker cli (click here for more info)

docker run -d \
  --name=mariadb \
  -e PUID=1000 \
  -e PGID=1000 \
  -e TZ=Etc/UTC \
  -e MYSQL_ROOT_PASSWORD=ROOT_ACCESS_PASSWORD \
  -e MYSQL_DATABASE=USER_DB_NAME `#optional` \
  -e MYSQL_USER=MYSQL_USER `#optional` \
  -e MYSQL_PASSWORD=DATABASE_PASSWORD `#optional` \
  -e REMOTE_SQL=http://URL1/your.sql,https://URL2/your.sql `#optional` \
  -p 3306:3306 \
  -v path_to_data:/config \
  --restart unless-stopped \
  lscr.io/linuxserver/mariadb:latest

Parameters

Container images are configured using parameters passed at runtime (such as those above). These parameters are separated by a colon and indicate <external>:<internal> respectively. For example, -p 8080:80 would expose port 80 from inside the container to be accessible from the host's IP on port 8080 outside the container.

Environment variables from files (Docker secrets)

You can set any environment variable from a file by using a special prepend FILE__.

As an example:

-e FILE__PASSWORD=/run/secrets/mysecretpassword

Will set the environment variable PASSWORD based on the contents of the /run/secrets/mysecretpassword file.

Umask for running applications

For all of our images we provide the ability to override the default umask settings for services started within the containers using the optional -e UMASK=022 setting. Keep in mind umask is not chmod it subtracts from permissions based on it's value it does not add. Please read up here before asking for support.

User / Group Identifiers

When using 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 any volume directories on the host are owned by the same user you specify and any permissions issues will vanish like magic.

In this instance PUID=1000 and PGID=1000, to find yours use id user as below:

  $ id username
    uid=1000(dockeruser) gid=1000(dockergroup) groups=1000(dockergroup)

Docker Mods

We publish various Docker Mods to enable additional functionality within the containers. The list of Mods available for this image (if any) as well as universal mods that can be applied to any one of our images can be accessed via the dynamic badges above.

Support 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" }}' lscr.io/linuxserver/mariadb:latest

Updating Info

Most of our images are static, versioned, and require an image update and container recreation to update the app inside. With some exceptions (ie. nextcloud, plex), we do not recommend or support updating apps inside the container. Please consult the Application Setup section above to see if it is recommended for the image.

Below are the instructions for updating containers:

Via Docker Compose

• Update all images: docker-compose pull
  • or update a single image: docker-compose pull mariadb
• Let compose update all containers as necessary: docker-compose up -d
  • or update a single container: docker-compose up -d mariadb
• You can also remove the old dangling images: docker image prune

Via Docker Run

• Update the image: docker pull lscr.io/linuxserver/mariadb:latest
• Stop the running container: docker stop mariadb
• Delete the container: docker rm mariadb
• Recreate a new container with the same docker run parameters as instructed above (if mapped correctly to a host folder, your /config folder and settings will be preserved)
• You can also remove the old dangling images: docker image prune

Via Watchtower auto-updater (only use if you don't remember the original parameters)

• Pull the latest image at its tag and replace it with the same env variables in one run:

  docker run --rm \
  -v /var/run/docker.sock:/var/run/docker.sock \
  containrrr/watchtower \
  --run-once mariadb

• You can also remove the old dangling images: docker image prune

Note: We do not endorse the use of Watchtower as a solution to automated updates of existing Docker containers. In fact we generally discourage automated updates. However, this is a useful tool for one-time manual updates of containers where you have forgotten the original parameters. In the long term, we highly recommend using Docker Compose.

Image Update Notifications - Diun (Docker Image Update Notifier)

• We recommend Diun for update notifications. Other tools that automatically update containers unattended are not recommended or supported.

Building locally

If you want to make local modifications to these images for development purposes or just to customize the logic:

git clone https://github.com/linuxserver/docker-mariadb.git
cd docker-mariadb
docker build \
  --no-cache \
  --pull \
  -t lscr.io/linuxserver/mariadb:latest .

The ARM variants can be built on x86_64 hardware using multiarch/qemu-user-static

docker run --rm --privileged multiarch/qemu-user-static:register --reset

Once registered you can define the dockerfile to use with -f Dockerfile.aarch64.

Versions

• 09.06.23: - Update lc_messages path in shipped custom.cnf to match upstream.
• 25.05.23: - Rebase to Alpine 3.18, deprecate armhf.
• 04.02.23: - Minor updates to defaults in custom.cnf.
• 31.01.23: - Rebase to 3.17.
• 09.12.22: - Add upgrade check warning.
• 11.10.22: - Rebase master to Alpine 3.16, migrate to s6v3, remove password escape logic which caused problems for a small subset of users.
• 06.07.21: - Rebase master to alpine.
• 03.07.21: - Rebase to 3.14.
• 08.02.21: - Fix new installs.
• 08.02.21: - Rebase to alpine. Add mariadb-backup.
• 08.02.21: - Release alpine tag. The alpine release will replace the latest tag in the near future.
• 27.10.19: - Bump to 10.4, ability use custom sql on initial init ,defining root passwords via file.
• 23.03.19: - Switching to new Base images, shift to arm32v7 tag.
• 07.03.19: - Add ability to setup a database and default user on first spinup.
• 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.