A memo on how to install Docker on Ubuntu 18.04.
The commands to execute for installation are listed in order below.
sudo apt update
sudo apt install apt-transport-https ca-certificates curl software-properties-common
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 bionic stable"
sudo apt update
# apt-cache policy docker-ce
sudo apt install docker-ce
# sudo systemctl status docker
# sudo usermod -aG docker ${USER} # Enable execution without sudo