Minimal setup steps (from above docs):
$ git clone https://github.com/dcos/dcos-vagrant.git
$ cd dcos-vagrant/
$ curl -O https://downloads.dcos.io/dcos/EarlyAccess/dcos_generate_config.sh
$ vagrant plugin install vagrant-hostmanager
$ export DCOS_CONFIG_PATH=etc/config-1.7.yaml
$ cp VagrantConfig.yaml.example VagrantConfig.yaml
$ vagrant up m1 a1 p1 boot
Ready to use: http://m1.dcos/