How to create testing database under docker?

Hello, In Kubuntu 18 I create docker for laravel 6 app with mysql defined :

  mysql:
    container_name: "vanilla-crm-db"
    image: mysql:5.7
    environment:
      MYSQL_ROOT_PASSWORD: "MYSQL_ROOT_PASSWORD"
      MYSQL_DATABASE: "vanilla-crm-dev"
      MYSQL_USER: "MYSQL_USER"
      MYSQL_PASSWORD: "MYSQL_PASSWORD"
    ports:
      - "3330:3306"
    volumes:
      - "./docker/mysql/data:/var/lib/mysql"

and it works for me.

Next I make http tests and I need to create new database for this and load dump of my database in it. Name of this database is writen in config/database.php under 'mysql_testing' block

1. I enter the bash with command :

docker-compose exec mysql bash

root@f216ef80c104:/# uname -a 
Linux f216ef80c104 4.15.0-118-generic #119-Ubuntu SMP Tue Sep 8 12:30:01 UTC 2020 x86_64 GNU/Linux

Where mysql is container_name in docker-compose.yml

Usually I enter mysql console with command:

mysql -u root -h localhost -p

But which must be format of this command in the docker console? I tried several ways and failed...

1. I use DBeaver and logged into my database and tried to create new database for testing. I got error: https://prnt.sc/uol0z7

How to fix it ? Have I to add some more right my mysql container definitions?

Thanks!