Tutorial

Install Docker (Mac)

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

brew install caskroom/cask/brew-cask

Install Virtualbox

brew update
brew cask install virtualbox

Docker Machine

brew update
brew install docker-machine docker
docker-machine create --driver virtualbox default
eval "$(docker-machine env default)"

Is it working?

docker run hello-world