{ pkgs, config, lib, namespace, ... }: let inherit (builtins) toString; inherit (lib) mkIf mkEnableOption; cfg = config.${namespace}.services.observability.prometheus; in { options.${namespace}.services.observability.prometheus = { enable = mkEnableOption "enable Prometheus"; }; config = mkIf cfg.enable { services.prometheus = { enable = true; port = 9002; globalConfig.scrape_interval = "15s"; scrapeConfigs = [ { job_name = "prometheus"; static_configs = [ { targets = [ "localhost:9002" ]; } ]; } { job_name = "node"; static_configs = [ { targets = [ "localhost:${toString config.services.prometheus.exporters.node.port}" ]; } ]; } ]; exporters = { node = { enable = true; port = 9005; enabledCollectors = [ "systemd" ]; openFirewall = true; }; }; }; networking.firewall.allowedTCPPorts = [ 9002 ]; }; }