进入mysql容器
操作vi etc/mysql/my.cnf
默认是不安装vi编辑器的，下面安装vi
更新安装包
apt-get update
安装vim
执行这条语句
apt-get install vim
到修改docker容器里面的mysql数据库密码了
启动mysql容器
docker exec -it mysql /bin/bash
编辑配置文件
我这里是没有这个配置文件，直接编辑即可，有的忽略
vi /etc/mysql/conf.d/docker.cnf
加上这4段
mysqld
skip-host-cache
skip-name-resolve
skip-grant-tables 跳过权限认证
保存退出
root@25cf6844e4d5:/# exit
exit
重启mysql容器
我命名的mysql容器名是mysql01，按照自己的名字重启
root@rzk \~\]# docker restart mysql01 mysql01 进入mysql容器,连接mysql docker exec -it mysql /bin/bash \[root@rzk \~\]# docker exec -it mysql01 /bin/bash root@25cf6844e4d5:/# mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \\g. Your MySQL connection id is 275 Server version: 5.7.31 MySQL Community Server (GPL) Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved. 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\> 修改密码 mysql\> use mysql; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql\> update user set authentication_string=password('密码') where user='root'; Query OK, 0 rows affected, 1 warning (0.00 sec) Rows matched: 2 Changed: 0 Warnings: 1 删除权限认证这行 skip-grant-tables 跳过权限认证 这一段需要删除，不然后续登录还是会免密码 \[mysqld
skip-host-cache
skip-name-resolve
skip-grant-tables 跳过权限认证
刷新权限
mysql> flush privileges;
Query OK, 0 rows affected (0.07 sec)
测试连接数据库
密码就修改成功了
原始地址
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