Dockerized Sysbench could not connect to Mysql
With the help of mustaccio I've resolved the issue by following instructions in this answer:


Removed a comment sign before the next string in /etc/my.cnf:

default_authentication_plugin=mysql_native_password
Connected as root:

mysql -u root -pMyPassword+1
Executed the next query:

ALTER USER 'sbtest'@'%' IDENTIFIED WITH mysql_native_password BY 'MyPassword+1';


After following these instructions Sysbench successfully connected to Mysql 8 and executed all preparation tasks successfully.