{ config, ... }: let cfg = config.services.prometheus; in { services.prometheus = { scrapeConfigs = [{ job_name = "nginx"; scrape_interval = "15s"; static_configs = [{ targets = [ "${cfg.exporters.nginx.listenAddress}:${toString cfg.exporters.nginx.port}" ]; }]; }]; exporters.nginx = { enable = true; listenAddress = "127.0.0.1"; }; }; }