Make front UI configurable for deploy
@garaud @mhugo this MR is extracted from https://gitlab.com/Oslandia/tempus_demos/merge_requests/2. We can actually merge this first, as it is does not depend on the other parts.
@garaud @mhugo this MR is extracted from https://gitlab.com/Oslandia/tempus_demos/merge_requests/2. We can actually merge this first, as it is does not depend on the other parts.