This is OpenStack Nova driver for Parallels Cloud Server boxes. This code represents the internal development branch of the Parallels engineering organisation and, as such, should be considered a snapshot of unreleased code provided for reference only. To receive fully tested and packaged production code, please contact the same source you obtained Parallels Cloud Server from.
Here are installation instructions: https://github.com/Parallels/pcs-nova-driver/wiki/Installation-HowTo