pyrox.dev
1{ config, pkgs, lib, ... }:
2
3with lib;
4
5let
6 cfg = config.services.netdata;
7
8 configFile = pkgs.writeText "netdata.conf" cfg.configText;
9
10 defaultUser = "netdata";
11
12in {
13 options = {
14 services.netdata = {
15 enable = mkOption {
16 default = false;
17 type = types.bool;
18 description = "Whether to enable netdata monitoring.";
19 };
20
21 user = mkOption {
22 type = types.str;
23 default = "netdata";
24 description = "User account under which netdata runs.";
25 };
26
27 group = mkOption {
28 type = types.str;
29 default = "netdata";
30 description = "Group under which netdata runs.";
31 };
32
33 configText = mkOption {
34 type = types.lines;
35 default = "";
36 description = "netdata.conf configuration.";
37 example = ''
38 [global]
39 debug log = syslog
40 access log = syslog
41 error log = syslog
42 '';
43 };
44
45 };
46 };
47
48 config = mkIf cfg.enable {
49 systemd.services.netdata = {
50 description = "Real time performance monitoring";
51 after = [ "network.target" ];
52 wantedBy = [ "multi-user.target" ];
53 preStart = concatStringsSep "\n" (map (dir: ''
54 mkdir -vp ${dir}
55 chmod 750 ${dir}
56 chown -R ${cfg.user}:${cfg.group} ${dir}
57 '') [ "/var/cache/netdata"
58 "/var/log/netdata"
59 "/var/lib/netdata" ]);
60 serviceConfig = {
61 User = cfg.user;
62 Group = cfg.group;
63 PermissionsStartOnly = true;
64 ExecStart = "${pkgs.netdata}/bin/netdata -D -c ${configFile}";
65 TimeoutStopSec = 60;
66 };
67 };
68
69 users.extraUsers = optional (cfg.user == defaultUser) {
70 name = defaultUser;
71 };
72
73 users.extraGroups = optional (cfg.group == defaultUser) {
74 name = defaultUser;
75 };
76
77 };
78}