How to run this demo. 1. Make sure you have systemd-nspawn installed: sudo apt-get install -y systemd-container 2. Install ruck: sudo pip install -e https://github.com/zulcss/ruck#egg=ruck 3. Run the following commands: sudo ruck build --config treefile.yaml sudo ruck build --config disk.yaml sudo ruck build --config deploy.yaml 3. Run systemd-nspawn sudo systemd-nspawn -b -i /var/ruck/exampleos/demo.img