Install Docker on Ubuntu

sudo su -

sudo apt update -y

sudo apt install apt-transport-https ca-certificates curl software-properties-common -y

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable"

apt-cache policy docker-ce

sudo apt update -y

sudo apt install docker-ce -y

sudo systemctl status docker

sudo systemctl enable docker

sudo systemctl start docker

sudo systemctl status docker

docker --version