profiles/monitoring/promtail.nix


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54

{ config, lib, pkgs, ... }:
{
  services.promtail.enable = true;
  services.promtail.configuration = {
    clients = [{ url = "https://loki.${config.homelab.domain}:3100/loki/api/v1/push"; }];
    scrape_configs = [
      {
        job_name = "journal";
        journal = {
          json = true;
          path = "/var/log/journal";
          max_age = "12h";
          labels = {
            host = config.networking.hostName;
            job = "journal";
            "__path__" = "/var/log/journal";
          };
        };

        relabel_configs = [
          {
            source_labels = [ "__journal__systemd_unit" ];
            target_label = "unit";
          }
          {
            source_labels = [ "__journal_priority" ];
            target_label = "priority";
          }
          {
            source_labels = [ "__journal_syslog_identifier" ];
            target_label = "syslog_id";
          }
        ];
      }

      {
        job_name = "nginx";
        static_configs = [{
          labels = {
            host = config.networking.hostName;
            job = "nginx";
            __path__ = "/var/log/nginx/*";
          };
        }];
      }
    ];

    server = {
      http_listen_port = 9832;
      http_path_prefix = "/promtail";
      grpc_listen_port = 0;
    };
  };
}