Well the root_url is the domain but is set http and we use https, will that make a difference (I have setup nginx to redirect http to https if that matters)?
Where do I run that query? is it a mongodb thing? I have been unsuccessful running any mongo commands thusfar as I was trying to do so for the pruning thing the other day and when in the mongo container I would not be able to get to mongo shell, it would say failed to contact mongodb. I am going from memory here as it was a few days ago but that was the gist as I recall.