pyrox.dev
1{
2 config,
3 lib,
4 pkgs,
5 options,
6 ...
7}:
8
9let
10 cfg = config.services.prometheus.exporters.smokeping;
11 inherit (lib) mkOption types concatStringsSep;
12 goDuration = types.mkOptionType {
13 name = "goDuration";
14 description = "Go duration (https://golang.org/pkg/time/#ParseDuration)";
15 check =
16 x: types.str.check x && builtins.match "(-?[0-9]+(\\.[0-9]+)?(ns|us|µs|ms|s|m|h))+" x != null;
17 inherit (types.str) merge;
18 };
19in
20{
21 port = 9374;
22 extraOpts = {
23 telemetryPath = mkOption {
24 type = types.str;
25 default = "/metrics";
26 description = ''
27 Path under which to expose metrics.
28 '';
29 };
30 pingInterval = mkOption {
31 type = goDuration;
32 default = "1s";
33 description = ''
34 Interval between pings.
35 '';
36 };
37 buckets = mkOption {
38 type = types.commas;
39 default = "5e-05,0.0001,0.0002,0.0004,0.0008,0.0016,0.0032,0.0064,0.0128,0.0256,0.0512,0.1024,0.2048,0.4096,0.8192,1.6384,3.2768,6.5536,13.1072,26.2144";
40 description = ''
41 List of buckets to use for the response duration histogram.
42 '';
43 };
44 hosts = mkOption {
45 type = with types; listOf str;
46 description = ''
47 List of endpoints to probe.
48 '';
49 };
50 };
51 serviceOpts = {
52 serviceConfig = {
53 AmbientCapabilities = [ "CAP_NET_RAW" ];
54 CapabilityBoundingSet = [ "CAP_NET_RAW" ];
55 ExecStart = ''
56 ${pkgs.prometheus-smokeping-prober}/bin/smokeping_prober \
57 --web.listen-address ${cfg.listenAddress}:${toString cfg.port} \
58 --web.telemetry-path ${cfg.telemetryPath} \
59 --buckets ${cfg.buckets} \
60 --ping.interval ${cfg.pingInterval} \
61 --privileged \
62 ${concatStringsSep " \\\n " cfg.extraFlags} \
63 ${concatStringsSep " " cfg.hosts}
64 '';
65 };
66 };
67}