97 lines
3.0 KiB
Nix
97 lines
3.0 KiB
Nix
{ lib, pkgs, config, ... }:
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with lib;
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let
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cfg = config.services.prometheus_exporters;
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settingsFormat = pkgs.formats.json { };
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in
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{
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options.services.prometheus_exporters = {
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enable = mkEnableOption (lib.mdDoc "Some prometheus exporters to replace netdata with");
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nodeArgs = mkOption {
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type = types.str;
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default = "--collector.systemd --collector.processes";
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description = "Extra command-line args for node_exporter";
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};
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nodePort = mkOption {
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type = types.port;
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default = 19990;
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description = lib.mdDoc "Which port to host node metrics on";
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};
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systemdArgs = mkOption {
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type = types.str;
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default = "--systemd.collector.enable-restart-count --systemd.collector.enable-ip-accounting";
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description = "Extra command-line args for systemd_exporter";
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};
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systemdPort = mkOption {
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type = types.port;
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default = 19991;
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description = lib.mdDoc "Which port to host systemd metrics on";
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};
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combinedPort = mkOption {
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type = types.port;
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default = 19999;
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description = lib.mdDoc "Which port to host combined metrics on";
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};
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};
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config = lib.mkIf cfg.enable {
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systemd.services.prometheus_exporters_node = {
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description = "prometheus exporter for node (machine) stats";
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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ExecStart = "${pkgs.prometheus-node-exporter}/bin/node_exporter --web.listen-address=\":${toString cfg.nodePort}\" ${cfg.nodeArgs}";
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};
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};
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systemd.services.prometheus_exporters_systemd = {
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description = "prometheus exporter for systemd stats";
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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ExecStart = "${pkgs.prometheus-systemd-exporter}/bin/systemd_exporter --web.listen-address=\":${toString cfg.systemdPort}\" ${cfg.systemdArgs}";
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};
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};
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systemd.services.prometheus_exporters_combined = let
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exporterExporterPkg = pkgs.buildGoModule rec {
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pname = "exporter_exporter";
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version = "0.4.5";
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rev = "v${version}";
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src = pkgs.fetchFromGitHub {
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inherit rev;
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owner = "QubitProducts";
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repo = "exporter_exporter";
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sha256 = "sha256-+ea7lNIZsk6ShLLqg+x1MQOP6GKYxD16+97efWVQPGA=";
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};
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vendorSha256 = "sha256-kTw4g3D3MrrsOfPSWswyvTuU8KNdKBoMMmruOoL/Pio=";
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meta = with lib; {
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description = "prometheus exporter for prometheus exporter(s)";
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};
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};
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config = pkgs.writeText "expexp.yml" ''
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modules:
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node:
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method: http
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http:
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port: ${toString cfg.nodePort}
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systemd:
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method: http
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http:
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port: ${toString cfg.systemdPort}
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'';
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in {
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description = "prometheus exporter combining the others";
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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ExecStart = "${exporterExporterPkg}/bin/exporter_exporter --config.file ${config} --web.listen-address=\":${toString cfg.combinedPort}\" ";
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};
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};
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};
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}
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