You can remove the user line ( http://nginx.org/en/docs/ngx_core_module.html ) in the nginx conf.
You will also face some problems with log writeing
I have a example setup here
which solves the issue.
Von: Charles Moulliard
Gesendet: Freitag, 23. September 19:03
Betreff: OopenShift Nginx issue - setgid(107) failed (1: Operation notpermitted)
Can somebody help me concerning this (setgid(107) failed (1: Operation not permitted)) issue reported here - https://github.com/jimmidyson/minishift/issues/105#issuecomment-249245765
Many thanks in advance