Contributions to validations-common follow guidelines largely similar to those of other openstack projects.
If you're interested in contributing to the validations-libs project, the following will help get you started:
If you already have a good understanding of how the system works and your OpenStack accounts are set up, you can skip to the development workflow section of this documentation to learn how changes to OpenStack should be submitted for review via the Gerrit tool:
Pull requests submitted through GitHub will be ignored.
Validations are meant to verify functionality of tripleo systems. Therefore a special care should be given to testing your code before submitting a review.