This should install docker and docker-compose on ubuntu. Tested on ubuntu 18.04 (with mate desktop).

docker on ubuntu18+

#!/bin/bash
: '
This should install docker and docker-compose on ubuntu.
Tested on ubuntu 18.04 (with mate desktop).
'
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 bionic stable"
sudo apt update -y
apt-cache policy docker-ce
sudo apt install docker-ce -y
sudo systemctl status docker

# execute docker command without sudo 
sudo usermod -aG docker ${USER}
su - ${USER}

# docker compose
sudo curl -L https://github.com/docker/compose/releases/download/1.21.2/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose