In order to use Racker, when not working on Linux, it is recommended to use a sandbox installation based on Vagrant. The Vagrantfile has all the needed provisioning recipes to provide a working Racker installation within the virtual machine without further ado.
# Acquire sources.
git clone https://github.com/cicerops/racker
cd racker
# Launch Linux environment.
vagrant up && vagrant ssh
# Test drive.
sudo postroj selftest hostnamectlRacker can now be used regularly like outlined in the Racker usage documentation. In order to satisfy privileges, please invoke it with sudo.