This post provides practical steps to setting up docker to run on Linux Mint 17.2, which is what I’m using on my development machine at the moment.

Before beginning, make sure you have remove any existing version(s) of Docker from your system.

First, add the Docker repository key

sudo apt-key adv --keyserver hkp://pgp.mit.edu:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609

Then create a new file for apt to find the Docker repository

sudo nano /etc/apt/sources.list.d/docker.list

Inside the docker.list file enter the following

# Ubuntu Trusty/Mint 17.2
deb https://apt.dockerproject.org/repo ubuntu-trusty main

Save and close the file. Now we want to get the latest updates from the new repository

sudo apt-get update

Once this finishes, you should now be able to install the latest Docker version

sudo apt-get install docker-engine

Once this has run, you can test the hello world docker image, which is tiny and quick to download

sudo docker run hello-world