Docker modifies the user name and password of MySQL

Docker modify Mysql Username and password

1、 Look at the container

[[email protected] ~]# docker ps -a

2、 Get into Mysql Containers

# Look at the picture above to find MySQL Container of id:801f2a6c6c94
[[email protected] ~]# docker exec -it 801f2a6c6c94 /bin/bash

3、 Get into etc/mysql file

[email protected]:/# cd etc/mysql
[email protected]:/etc/mysql# ls
conf.d  my.cnf  my.cnf.fallback  mysql.cnf  mysql.conf.d

4、 modify mysql The configuration file

Don't panic at this point , No, vim Then we'll give him a

# to update 
apt-get update
# Import 
apt-get install

This problem occurs when you import , Do not let import , Then let's update , Import after updating

[email protected]:/etc/mysql# apt-get update

Then you can import vim 了

[email protected]:/etc/mysql# apt-get install vim

Import vim Then modify the configuration file

[email protected]:/etc/mysql# vim my.cnf

[mysqld]

skip-host-cache

skip-name-resolve

skip-grant-tables  Skip authority authentication 

Save and exit

[email protected]:/# exit

restart mysql Containers

Look at the container first

[[email protected] ~]# docker ps -a

Restart container

[[email protected] ~]# docker restart mysql57

Get into mysql Containers , Connect mysql

[[email protected] ~]# docker exec -it mysql57 /bin/bash

# Here, reset the user name and password 
[email protected]:/# mysql -uroot -p
Enter password:

Change Password

mysql> use mysql;

mysql> update user set authentication_string=password(' password ') where user='root';

Delete the line of authority authentication

skip-grant-tables Skip authority authentication This paragraph needs to be deleted , Otherwise, the subsequent login will be password free

[mysqld]

skip-host-cache

skip-name-resolve

skip-grant-tables Skip authority authentication

Refresh the permissions

mysql> flush privileges;

Test connection database