In this guide we are going to explore how to run Mysql 8 locally with docker and docker compose. This can be helpful if you want to run Mysql 8 locally without installing it in your machine or if you want to run multiple versions of Mysql seamlessly.
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Prerequisites
To follow along, ensure you have the following:
- Docker installed locally and permissions to use it to launch containers
- Docker compose is installed locally
- Basic knowledge of the command line
Table of content
- Using the
docker run
command - Using the
docker-compose
tool
1. Using the docker run command
We are going to use the docker run
command to achieve our goal. The version of mysql that we want is mysql:8.0
– the latest version of mysql image.
❯ docker run -d \
--name my-mysql \
-p 3306:3306 \
-v ~/apps/mysql:/var/lib/mysql \
--user 1000:1000 \
-e MYSQL_ROOT_PASSWORD=S3cret \
-e MYSQL_PASSWORD=An0thrS3crt \
-e MYSQL_USER=citizix_user \
-e MYSQL_DATABASE=citizix_db \
mysql:8
Unable to find image 'mysql:8' locally
8: Pulling from library/mysql
b380bbd43752: Pull complete
f23cbf2ecc5d: Pull complete
30cfc6c29c0a: Pull complete
b38609286cbe: Pull complete
8211d9e66cd6: Pull complete
2313f9eeca4a: Pull complete
7eb487d00da0: Pull complete
4d7421c8152e: Pull complete
77f3d8811a28: Pull complete
cce755338cba: Pull complete
69b753046b9f: Pull complete
b2e64b0ab53c: Pull complete
Digest: sha256:6d7d4524463fe6e2b893ffc2b89543c81dec7ef82fb2020a1b27606666464d87
Status: Downloaded newer image for mysql:8
38dc3037177eab4a56366b14a4acfdbb6ae98770e03d509046e05aa2a1ce21d0
In the above command:
- The
-d
instructs docker container to run as a detached process. It run container in background and print container ID -p
is for port mapping. We are instructing the container to expose the container port externally. Container port3306
is mapped to host port3306
. That means the service can be accessed throughlocalhost:3306
- The
-v
directive is used to mount volumes. In our case we are mounting the container volume/var/lib/mysql
to host path~/apps/mysql
. Containers are ephemeral devices that will contain its data for the time it is running. Once a container is stopped, its data is lost. Mounting volumes ensures that the data is added to a host path that can be reused when the container is restarted. - The
--user
argument is used to run the container with an arbitrary user (non root user). This happens if you need to runmysqld
with a specific UID/GID. - The
-e
argument is for the environment variables. The supplied environment variables will be used to set up a Mysql user, password and a database.
To check that our container is running as expected, use the docker ps
command:
➜ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
a1d77a05bd18 mysql:8 "docker-entrypoint.s…" 30 seconds ago Up 29 seconds 0.0.0.0:3306->3306/tcp, :::3306->3306/tcp, 33060/tcp my-mysql
In my case the container is running as my-mysql
the name we gave it. We can login to the container using the docker exec
command while executing /bin/bash
interactively. Here we are also logging in to posgtres with the credentials we specified above and checking the version.
➜ docker exec -it my-mysql /bin/bash
[email protected]:/$ mysql -u citizix_user -pAn0thrS3crt
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.27 MySQL Community Server - GPL
Copyright (c) 2000, 2021, Oracle and/or its affiliates.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> select version();
+-----------+
| version() |
+-----------+
| 8.0.27 |
+-----------+
1 row in set (0.00 sec)
mysql>
If you need to clean up the container when not in use, you can stop and remove the container using this command:
❯ docker stop my-mysql
my-mysql
➜ docker rm my-mysql
my-mysql
2. Using the docker-compose tool
We can achieve the same functionality with docker-compose
. Docker Compose is a tool for defining and running multi-container Docker applications. With Compose, you use a YAML file to configure your application’s services.
Docker Compose allows you to define the service (Mysql in our case) with properties like the image
to use, ports
to expose, volumes
to mount and environment
variables.
Here is how we would use docker-compose
to achieve the functionality above. Save this as docker-compose.yaml
:
version: '3.9'
services:
mysql:
image: mysql:8
ports:
- 3306:3306
volumes:
- ~/apps/mysql:/var/lib/mysql
environment:
- MYSQL_ROOT_PASSWORD=S3cret
- MYSQL_PASSWORD=An0thrS3crt
- MYSQL_USER=citizix_user
- MYSQL_DATABASE=citizix_db
Now bring up the containers:
➜ docker-compose up -d
Creating tmp_mysql_1 ... done
The commands:
up
brings up the container-d
in a detached mode
Verify the container processes using the ps command:
❯ docker-compose ps
Name Command State Ports
-----------------------------------------------------------------------------------------------------
tmp_mysql_1 docker-entrypoint.sh mysqld Up 0.0.0.0:3306->3306/tcp,:::3306->3306/tcp,
33060/tcp
To login to the container and login to mysql, use this:
➜ docker-compose exec mysql /bin/bash
[email protected]:/# mysql -u citizix_user -pAn0thrS3crt
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.27 MySQL Community Server - GPL
Copyright (c) 2000, 2021, Oracle and/or its affiliates.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> select version();
+-----------+
| version() |
+-----------+
| 8.0.27 |
+-----------+
1 row in set (0.00 sec)
mysql>
Conclusion
In this guide we managed to run Mysql 8 as a container in our system, we explored using the docker run
command while passing the required arguments an alternative approach of simplifying the process with docker-compose
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