48 lines
1.3 KiB
Nix
48 lines
1.3 KiB
Nix
{ config, pkgs, lib, ... }:
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with lib;
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let
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cfg = config.services.prometheus.nodeExporter;
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cmdlineArgs = cfg.extraFlags ++ [
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"-web.listen-address=${cfg.listenAddress}"
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];
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in {
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options = {
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services.prometheus.nodeExporter = {
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enable = mkEnableOption "Enable the Prometheus node exporter (CPU stats etc).";
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listenAddress = mkOption {
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type = types.str;
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default = "0.0.0.0:9100";
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description = ''
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Address to listen on.
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'';
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};
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extraFlags = mkOption {
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type = types.listOf types.str;
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default = [];
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description = ''
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Extra commandline options when launching the node exporter.
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'';
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};
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};
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};
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config = mkIf cfg.enable {
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systemd.services.prometheus-node-exporter = {
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description = "Prometheus exporter for machine metrics";
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unitConfig.Documentation = "https://github.com/prometheus/node_exporter";
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wantedBy = [ "multi-user.target" ];
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script = ''
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exec ${pkgs.prometheus-node-exporter}/bin/node_exporter \
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${concatStringsSep " \\\n " cmdlineArgs}
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'';
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serviceConfig = {
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User = "nobody";
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Restart = "always";
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ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
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};
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};
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};
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}
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