Rubiks exists to help programmatically generate and maintain the yaml files associated with kubernetes configuration.
The rubiks compiler provides a DSL (basically python) to help make this happen.
Rubiks is available under the Apache 2.0 Licence (see the file LICENCE included in this distribution) and contains a distribution of PyYAML (see the file PyYAML.LICENCE for more information). It has been written by OLX, a part of the Naspers Group.
Installing Rubiks is easy, you can just clone this repository to your working space and then symlink the rubiks binary into somewhere (eg ~/bin) that is on your executable search path ($PATH). Then you should be able to do rubiks help or rubiks -h to get a list of commands.
To use the examples, you can clone that repository, and then when you have cd-ed into it, you can run rubiks generate (or /path/to/rubiks/rubiks generate if it isn't on your path as above) to generate an out directory at the top-level of the repository with all the YAML files inside it.
Rubiks is designed to point at a Rubiks Repository, which is just a repository with some possible rubiks configuration (in the form of a .rubiks file in the repository root), and some rubiks source files.
Running rubiks generate while anywhere in such a repository (anywhere that git will detect the repository) will generate you all the YAML files (all relative to the repository root) which you can use to update your clusters. Right now, we can use git status / git diff and knowing what was changed to update these clusters, but in future this will be resolvable within rubiks itself.
See also rubiks help for more information on how to use it