Investigate on using Registry on OpenShift platforms
Followup from https://gitlab.com/charts/gitlab/merge_requests/555
Investigate being able to use the included registry when deployed on OpenShift.
When deployed in OpenShift, we have users turn off the nginx ingress controller in favour of using the OpenShift router. During our initial investigation of using GitLab on OpenShift we weren't able to get the registry working through the router: https://gitlab.com/charts/gitlab/issues/639#note_111707540
Once again we should try and investigate getting this working. In February we updated the registry to its latest minor version: https://gitlab.com/charts/gitlab/merge_requests/681 which brought quite a few improvements, and fixes for using the registry over http/2. So that may have additionally changed the situation. Previously in order for the previous version of the registry to work with nginx, we had to force it to use http 1. And we didn't get it working with the OpenShift router.