Custom domain for raw endpoints
In order to improve performance and limit abuse on GitLab.com it would be helpful to have configurable domain for raw endpoints. This would allow us to setup aggressive CDN caching.
Example: Instead of https://gitlab.com/gitlab-com/gl-infra/oncall-robot-assistant/raw/master/README.md, selecting the raw endpoint would send the user to https://raw.gitlab-static.net/gitlab-com/gl-infra/oncall-robot-assistant/raw/master/README.md if the external raw endpoint is set to raw.gitlab-static.net
.