docker-documentation/images/docker-mariadb.md

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# [linuxserver/mariadb](https://github.com/linuxserver/docker-mariadb)
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[Mariadb](https://mariadb.org/) is one of the most popular database servers. Made by the original developers of MySQL.
## Supported Architectures
Our images support multiple architectures such as `x86-64`, `arm64` and `armhf`. We utilise the docker manifest for multi-platform awareness. More information is available from docker [here](https://github.com/docker/distribution/blob/master/docs/spec/manifest-v2-2.md#manifest-list) and our announcement [here](https://blog.linuxserver.io/2019/02/21/the-lsio-pipeline-project/).
Simply pulling `linuxserver/mariadb` 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:
| Architecture | Tag |
| :----: | --- |
| x86-64 | amd64-latest |
| arm64 | arm64v8-latest |
| armhf | arm32v7-latest |
## Usage
Here are some example snippets to help you get started creating a container from this image.
### docker
```
docker create \
--name=mariadb \
-e PUID=1000 \
-e PGID=1000 \
-e MYSQL_ROOT_PASSWORD=<DATABASE PASSWORD> \
-e TZ=Europe/London \
-e MYSQL_DATABASE=<USER DB NAME> `#optional` \
-e MYSQL_USER=<MYSQL USER> `#optional` \
-e MYSQL_PASSWORD=<DATABASE PASSWORD> `#optional` \
-p 3306:3306 \
-v <path to data>:/config \
--restart unless-stopped \
linuxserver/mariadb
```
### docker-compose
Compatible with docker-compose v2 schemas.
```yaml
---
version: "2"
services:
mariadb:
image: linuxserver/mariadb
container_name: mariadb
environment:
- PUID=1000
- PGID=1000
- MYSQL_ROOT_PASSWORD=<DATABASE PASSWORD>
- TZ=Europe/London
- MYSQL_DATABASE=<USER DB NAME> #optional
- MYSQL_USER=<MYSQL USER> #optional
- MYSQL_PASSWORD=<DATABASE PASSWORD> #optional
volumes:
- <path to data>:/config
ports:
- 3306:3306
restart: unless-stopped
```
## Parameters
Docker 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.
### Ports (`-p`)
| Parameter | Function |
| :----: | --- |
| `3306` | Mariadb listens on this port. |
### Environment Variables (`-e`)
| Env | Function |
| :----: | --- |
| `PUID=1000` | for UserID - see below for explanation |
| `PGID=1000` | for GroupID - see below for explanation |
| `MYSQL_ROOT_PASSWORD=<DATABASE PASSWORD>` | Set this to root password for installation (minimum 4 characters). |
| `TZ=Europe/London` | Specify a timezone to use EG Europe/London. |
| `MYSQL_DATABASE=<USER DB NAME>` | Specify the name of a database to be created on image startup. |
| `MYSQL_USER=<MYSQL USER>` | This user will have superuser access to the database specified by MYSQL_DATABASE. |
| `MYSQL_PASSWORD=<DATABASE PASSWORD>` | Set this to the password you want to use for you MYSQL_USER (minimum 4 characters). |
### Volume Mappings (`-v`)
| Volume | Function |
| :----: | --- |
| `/config` | Contains the db itself and all assorted settings. |
## 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)
```
## Application Setup
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.
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
## 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" }}' linuxserver/mariadb`
## Versions
* **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.