1{ config, lib, pkgs, options }:
2
3with lib;
4
5let
6 cfg = config.services.prometheus.exporters.bird;
7in
8{
9 port = 9324;
10 extraOpts = {
11 birdVersion = mkOption {
12 type = types.enum [ 1 2 ];
13 default = 2;
14 description = lib.mdDoc ''
15 Specifies whether BIRD1 or BIRD2 is in use.
16 '';
17 };
18 birdSocket = mkOption {
19 type = types.path;
20 default = "/run/bird/bird.ctl";
21 description = lib.mdDoc ''
22 Path to BIRD2 (or BIRD1 v4) socket.
23 '';
24 };
25 newMetricFormat = mkOption {
26 type = types.bool;
27 default = true;
28 description = lib.mdDoc ''
29 Enable the new more-generic metric format.
30 '';
31 };
32 };
33 serviceOpts = {
34 serviceConfig = {
35 SupplementaryGroups = singleton (if cfg.birdVersion == 1 then "bird" else "bird2");
36 ExecStart = ''
37 ${pkgs.prometheus-bird-exporter}/bin/bird_exporter \
38 -web.listen-address ${cfg.listenAddress}:${toString cfg.port} \
39 -bird.socket ${cfg.birdSocket} \
40 -bird.v2=${if cfg.birdVersion == 2 then "true" else "false"} \
41 -format.new=${if cfg.newMetricFormat then "true" else "false"} \
42 ${concatStringsSep " \\\n " cfg.extraFlags}
43 '';
44 RestrictAddressFamilies = [
45 # Need AF_UNIX to collect data
46 "AF_UNIX"
47 ];
48 };
49 };
50}