Cover all the NFS-related testcases:
QA:Testcase_install_repository_NFS_graphical
QA:Testcase_install_repository_NFS_variation
QA:Testcase_Kickstart_Nfs_Server_Path_Ks_Cfg
QA:Testcase_install_repository_NFSISO_variation

This will require changes in the Trigger and also in the OpenQA deployment as such.
We need to decide whether to add another Docker machine (or rather add the NFS service to the openqa-data image) to cover the NFS service, or just run NFS on the host machine. Either way, it is crucial to think of a reasonable directory structure to allow (ideally) just one "root" NFS share, under which the images will be shared/mounted in a programatically discoverable way.
The trigger will , after downloading the respective ISO, loop-mount it to an appropriate directory (for the NFS_graphical|variation), and the tests will devise the path to the loop-mounted dirs (or to the ISO itself) based on release/version/flavor/...

TODO: Add individual task for tests and the trigger's nfs related changes.