Toshimaru's Blog

Run and Connect to MySQL on Docker

I wanted to run MySQL v8.0.x on docker aside from MySQL 5.7 running on my localhost, so I’ll give a instruction for it.

docker pull

First of all, let’s run docker pull and pull MySQL v8.0 image.

$ docker pull mysql:8.0

(8.0 means a tag. if it’s not specified, latest MySQL docker image is used.)

docker run

Then, run docker run.

$ docker run --name mysql -e MYSQL_ROOT_PASSWORD=xxxx -p 3306:3306 mysql:8.0
  • MYSQL_ROOT_PASSWORD is required, you can set whatever password you like.
  • --name mysql option assigns a name(mysql) to the container
  • -p 3306:3306 option publishes a container’s 3306 port to the host

Connect to MySQL

Finally, let’s conect to MySQL running on the docker.

$ mysql -h -u root -p
Enter password:
ERROR 2059 (HY000): Authentication plugin 'caching_sha2_password' cannot be loaded: dlopen(/usr/local/Cellar/mysql/5.7.22/lib/plugin/, 2): image not found

But we’ve got an error. This is because MySQL server version and client version are different and those encryption methods are different.

Let’s connect to mysql using mysql client on the docker.

$ docker exec -it mysql bash

The folloing commands are run inside the docker.

root@xxx:/# mysql --version
mysql  Ver 8.0.17 for Linux on x86_64 (MySQL Community Server - GPL)
root@xxx:/# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.17 MySQL Community Server - GPL

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It works!