MariaDB Container Cheat Sheet - Source

Revision: 130676
User: Anel Husakovic
Date: 2023-09-23 22:39

<<toc>>

== Get the images

Images can be found on [[https://hub.docker.com/_/mariadb|MariaDB Docker Hub]].\\
To get the list of images run
<<code>>
$ docker images -a
<</code>>

== Create the network

<<code>>
$ docker network create mynetwork
<</code>>

It is good practice to create the container network and attach the container to the network.

## Start the container with server options

To start the container in the background with the MariaDB server image run:
<<code>>
$ docker run --rm --detach \
--env MARIADB_ROOT_PASSWORD=sosecret \
--network mynetwork \
--name mariadb-server \
mariadb:latest
<</code>>

Additionally [[mariadb-server-docker-official-image-environment-variables||environment variables]] are also provided.

== Get the list of running containers

<<code wrap=true>>
$ docker ps
CONTAINER ID   IMAGE            COMMAND                  CREATED          STATUS          PORTS      NAMES
ad374ec8a272   mariadb:latest   "docker-entrypoint.s…"   3 seconds ago    Up 1 second     3306/tcp   mariadb-server
<</code>>

Note: specify the flag **-a** in case you want to see all containers

== Start the client from the container

To start the //mariadb// client inside the created container and run specific commands, run the following:
<<code wrap=true>>
$ docker exec -it mariadb-server mariadb -psosecret -e "SHOW PLUGINS"
<</code>>

== Inspect logs of a container

<<code>>
$ docker logs mariadb-server
<</code>>

In the logs you can find status information about the server, plugins, generated passwords, errors and so on.

== Restart the container

<<code>>
$ docker restart mariadb-server
<</code>>

== Run commands within the container

<<code>>
$ docker exec -it mariadb-server bash
<</code>>

== Use a volume to specify configuration options

<<code wrap=true>>
$ docker run --detach --env MARIADB_USER=anel \
  --env MARIADB_PASSWORD=anel \
  --env MARIADB_DATABASE=my_db \
  --env MARIADB_RANDOM_ROOT_PASSWORD=1 \
  --volume $PWD/my_container_config:/etc/mysql/conf.d:z \
  --network mynetwork \
  --name mariadb-server1 \
   mariadb:latest 
<</code>>

One can specify custom [[configuring-mariadb-with-option-files|configuration files]] through the **/etc/mysql/conf.d** volume during container startup.

== Use a volume to specify grants during container start

<<code wrap=true>>
$ docker run --detach --env MARIADB_USER=anel\
  --env MARIADB_PASSWORD=anel \
  --env MARIADB_DATABASE=my_db \
  --env MARIADB_RANDOM_ROOT_PASSWORD=1 \
  --volume $PWD/my_init_db:/docker-entrypoint-initdb.d \
  --network mynetwork \
  --name mariadb-server1 \
   mariadb:latest 
<</code>>

User created with the environment variables has full grants only to the //MARIADB_DATABASE//. In order to override those grants, one can specify grants to a user, or execute any SQL statements from host file to **docker-entrypoint-initdb.d**. In the //local_init_dir// directory we can find the file, created like this:
<<code>>
$ echo "GRANT ALL PRIVILEGES ON *.* TO anel;" > my_init_db/my_grants.sql
<</code>>

== See Also
* [[installing-and-using-mariadb-via-docker|Installing and using MariaDB via Docker]]

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MariaDB Container Cheat Sheet - Source

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