pyrox.dev
1{ config, lib, pkgs, options }:
2
3with lib;
4
5let
6 cfg = config.services.prometheus.exporters.nginxlog;
7in {
8 port = 9117;
9 extraOpts = {
10 settings = mkOption {
11 type = types.attrs;
12 default = {};
13 description = lib.mdDoc ''
14 All settings of nginxlog expressed as an Nix attrset.
15
16 Check the official documentation for the corresponding YAML
17 settings that can all be used here: https://github.com/martin-helmich/prometheus-nginxlog-exporter
18
19 The `listen` object is already generated by `port`, `listenAddress` and `metricsEndpoint` and
20 will be merged with the value of `settings` before writing it as JSON.
21 '';
22 };
23
24 metricsEndpoint = mkOption {
25 type = types.str;
26 default = "/metrics";
27 description = lib.mdDoc ''
28 Path under which to expose metrics.
29 '';
30 };
31 };
32
33 serviceOpts = let
34 listenConfig = {
35 listen = {
36 port = cfg.port;
37 address = cfg.listenAddress;
38 metrics_endpoint = cfg.metricsEndpoint;
39 };
40 };
41 completeConfig = pkgs.writeText "nginxlog-exporter.yaml" (builtins.toJSON (lib.recursiveUpdate listenConfig cfg.settings));
42 in {
43 serviceConfig = {
44 ExecStart = ''
45 ${pkgs.prometheus-nginxlog-exporter}/bin/prometheus-nginxlog-exporter -config-file ${completeConfig}
46 '';
47 Restart="always";
48 ProtectSystem="full";
49 };
50 };
51}