I have used codesearch to search for the config of codesearch with things like
https://codesearch.wmcloud.org/search/?q=codesearch&files=&excludeF…
I did find the puppet module codesearch and a hound config file in there.
But somehow I have not found yet where the "gerrit-replica" URL s configured.
Do you see it? Could that be in Horizon Hiera instead of the repos maybe?