Log in to MySQL console with root user:
root@9532f0da1a2a:/# mysql -u root -pPASSWORD
and change the Authentication Plugin with the password there:
mysql> ALTER USER root IDENTIFIED WITH mysql_native_password BY 'PASSWORD';
Query OK, 0 rows affected (0.08 sec)
You can read more info about the Preferred Authentication Plugin on the MySQL 8.0 Reference Manual
https://dev.mysql.com/doc/refman/8.0/en/upgrading-from-previous-series.html#upgrade-caching-sha2-password
It is working perfectly in a dockerized environment:
docker run --name mysql -e MYSQL_ROOT_PASSWORD=PASSWORD -p 3306:3306 -d mysql:latest
docker exec -it mysql bash
mysql -u root -pPASSWORD
ALTER USER root IDENTIFIED WITH mysql_native_password BY 'PASSWORD';
exit
exit
docker run --name phpmyadmin -d --link mysql:db -p 8080:80 phpmyadmin/phpmyadmin:latest
So you can now log in to phpMyAdmin on http://localhost:8080 with root / PASSWORD
mysql/mysql-server
If you are using mysql/mysql-server docker image
But remember, it is just a 'quick and dirty' solution in the development environment. It is not wise to change the MySQL Preferred Authentication Plugin.
docker run --name mysql -e MYSQL_ROOT_PASSWORD=PASSWORD -e MYSQL_ROOT_HOST=% -p 3306:3306 -d mysql/mysql-server:latest
docker exec -it mysql mysql -u root -pPASSWORD -e "ALTER USER root IDENTIFIED WITH mysql_native_password BY 'PASSWORD';"
docker run --name phpmyadmin -d --link mysql:db -p 8080:80 phpmyadmin/phpmyadmin:latest
Updated solution at 10/04/2018
Change the MySQL default authentication plugin by uncommenting the default_authentication_plugin=mysql_native_password setting in /etc/my.cnf
use at your own risk
docker run --name mysql -e MYSQL_ROOT_PASSWORD=PASSWORD -e MYSQL_ROOT_HOST=% -p 3306:3306 -d mysql/mysql-server:latest
docker exec -it mysql sed -i -e 's/# default-authentication-plugin=mysql_native_password/default-authentication-plugin=mysql_native_password/g' /etc/my.cnf
docker stop mysql; docker start mysql
docker run --name phpmyadmin -d --link mysql:db -p 8080:80 phpmyadmin/phpmyadmin:latest
Updated workaround at 01/30/2019
docker run --name mysql -e MYSQL_ROOT_PASSWORD=PASSWORD -e MYSQL_ROOT_HOST=% -p 3306:3306 -d mysql/mysql-server:latest
docker exec -it mysql sed -i -e 's/# default-authentication-plugin=mysql_native_password/default-authentication-plugin=mysql_native_password/g' /etc/my.cnf
docker exec -it mysql mysql -u root -pPASSWORD -e "ALTER USER root IDENTIFIED WITH mysql_native_password BY 'PASSWORD';"
docker stop mysql; docker start mysql
docker run --name phpmyadmin -d --link mysql:db -p 8080:80 phpmyadmin/phpmyadmin:latest
default_authentication_plugin
Updated solution at 09/13/2021
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';
