Install docker in linux

install-docker-in-linux.txt

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
To check the status:

sudo systemctl status docker

Optional: add $USER to docker group (make sure to log out and back in after)

sudo groupadd docker
sudo usermod -aG docker $USER
sudo systemctl restart docker