docker releases: https://download.docker.com/linux/ubuntu/dists/artful/
If you are used to installing Docker to your development machine with get-docker
script, that won't work either. So the solution is to install Docker CE from the artful
package.
sudo apt-get update
sudo apt-get install apt-transport-https ca-certificates curl software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -