pyrox.dev
1{ config, lib, pkgs, ... }:
2
3with lib;
4
5let
6 cfg = config.services.vnstat;
7in {
8 options.services.vnstat = {
9 enable = mkOption {
10 type = types.bool;
11 default = false;
12 description = ''
13 Whether to enable update of network usage statistics via vnstatd.
14 '';
15 };
16 };
17
18 config = mkIf cfg.enable {
19 users.extraUsers.vnstatd = {
20 isSystemUser = true;
21 description = "vnstat daemon user";
22 home = "/var/lib/vnstat";
23 createHome = true;
24 };
25
26 systemd.services.vnstat = {
27 description = "vnStat network traffic monitor";
28 path = [ pkgs.coreutils ];
29 after = [ "network.target" ];
30 wantedBy = [ "multi-user.target" ];
31 unitConfig.documentation = "man:vnstatd(1) man:vnstat(1) man:vnstat.conf(5)";
32 preStart = "chmod 755 /var/lib/vnstat";
33 serviceConfig = {
34 ExecStart = "${pkgs.vnstat}/bin/vnstatd -n";
35 ExecReload = "${pkgs.procps}/bin/kill -HUP $MAINPID";
36 ProtectHome = true;
37 PrivateDevices = true;
38 PrivateTmp = true;
39 User = "vnstatd";
40 };
41 };
42 };
43}