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
