Vagrant.configure(2) do |config|
  config.vm.box = "coreos-alpha"
  config.vm.network "forwarded_port", guest: 2375, host: 2375

  config.vm.provision "shell", inline: "
cat > /etc/systemd/system/docker-tcp.socket <<FILE
[Unit]
Description=Docker Socket for the API

[Socket]
ListenStream=2375
BindIPv6Only=both
Service=docker.service

[Install]
WantedBy=sockets.target
FILE

systemctl enable docker-tcp.socket
systemctl stop docker
systemctl start docker-tcp.socket
systemctl start docker
"
end