1. 登录docker

docker exec -it mysql /bin/bash

2. 登录Mysql

mysql -u root -p<密码>

3. 阻止ROOT用户远程登录

DELETE FROM mysql.user WHERE User='root' AND Host NOT IN ('localhost', '127.0.0.1', '::1');

4. 创建远程登录用户

CREATE USER '<用户名>'@'%' IDENTIFIED BY '<密码>';

5. 刷新

flush privileges;