When you want to change the MySQL password of docker-compose

As the title suggests, this is how to change the setting value when setting the mysql password like this.


    image: mysql:5.7.32
      - "3306:3306"
      - mysql_data:/var/lib/mysql
    restart: always
      MYSQL_ROOT_PASSWORD: root_pass
      MYSQL_DATABASE: db_name
      MYSQL_USER: user1
      MYSQL_PASSWORD: user1_pass


After changing docker-compose.yml normally, execute the following command to reflect the setting value.

docker-compose down --volumes
docker-compose up -d

If you just go down and up normally, MySQL data with a password set will be used, so it will not work. Therefore, it is necessary to delete the volume as in the above command.

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