ChRIS switch to single cluster user

[rudolphpienaar]

ChRIS single cluster user

Overview

This task should "simplify" the general operation of ChRIS. Currently a validated user to the system preserves their uid/gid when running jobs on the backend cluster. The problem with this is that users can have all sorts of custom environments and setup scripts resulting in a lot of work to get a particular user working well.

Solution

Only a single backend user will now be used for all ChRIS users.