Install Docker CE on ElementaryOS 0.4.1 Loki

install-docker-ce-on-elementaryos-juno.sh

#!/bin/bash
set -e

##########################################################
# Install script for Docker-CE on ElementaryOS 0.4.1 Loki
# Had to update the repository to point to xenial instead
# of using 'lsb_release -cs' because there's no loki
# repository at download.docker.com.
##########################################################

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 -;

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

sudo apt-get update;

sudo apt-get install docker-ce;

sudo systemctl enable docker;

echo 'All done!'

You might see the following error/warning during the installation. You CAN IGNORE them!

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

Err:10 https://download.docker.com/linux/ubuntu juno Release
404 Not Found [IP: 2600:9000:2004:a400:3:db06:4200:93a1 443]
Get:11 http://security.ubuntu.com/ubuntu bionic-security InRelease [83.2 kB]
Get:12 https://download.docker.com/linux/ubuntu xenial/stable amd64 Packages [5,491 B]
Reading package lists... Done
E: The repository 'https://download.docker.com/linux/ubuntu juno Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

use the following command to verify docker installation

sudo docker run hello-world