- I created an EC2 with a free tier. Inside EC2, I install docker stuff.
 - I followed, this tutorial, to install 
mysql/mysql-server:8.0.19-1.1.15. - I created new users, with 
rootandfoo, and of course passwords for these users. - I ran the docker image with exposing port 3306 and tried connecting to it from MySQL Workbench.
 
The information I filled in for the connection
Hostname: #IPv4 Public IP of my EC2
Port: 3306 
Username: foo
But I got the following error
Any ideas for my problem?

