as sudo role, and at CLI, just run below code:
> sudo apt install apt-transport-https ca-certificates curl software-properties-common
> curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
> echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
> sudo apt update apt-get update && apt-get full-upgrade -y && apt-get autoremove -y && sudo apt-get clean
> sudo apt install docker-ce -y
> docker run --name mysql -d -p 3309:3306 -e MYSQL_ROOT_PASSWORD=gimitec --restart unless-stopped mysql:5.6
> docker ps
> cd /home
> cat gimitec.sql | docker exec -i mysql /usr/bin/mysql -u root --password=gimitec mysql
With this code you will get database not available to connect after restart Docker or reboot your server,
==> because root password will be changed during Docker reboot