As part of the parent task effort to deprecate and remove Salt from out infrastructure, we need an alternative way for the WMCS admins to reach all the instances and Cumin can be used for that.
This task is to track the installation of Cumin into the WMCS infrastructure and ensure it works and that Cumin masters can reach and connect to all instances.
As of now all the tests will be performed with the direct backend using FQDN, while the development of the dedicated backend for OpenStack is done as part of T175711