pyrox.dev
1{
2 config,
3 pkgs,
4 lib,
5 ...
6}:
7let
8
9 cfg = config.services.riemann-tools;
10
11 riemannHost = "${cfg.riemannHost}";
12
13 healthLauncher = pkgs.writeScriptBin "riemann-health" ''
14 #!/bin/sh
15 exec ${pkgs.riemann-tools}/bin/riemann-health ${builtins.concatStringsSep " " cfg.extraArgs} --host ${riemannHost}
16 '';
17
18in
19{
20
21 options = {
22
23 services.riemann-tools = {
24 enableHealth = lib.mkOption {
25 type = lib.types.bool;
26 default = false;
27 description = ''
28 Enable the riemann-health daemon.
29 '';
30 };
31 riemannHost = lib.mkOption {
32 type = lib.types.str;
33 default = "127.0.0.1";
34 description = ''
35 Address of the host riemann node. Defaults to localhost.
36 '';
37 };
38 extraArgs = lib.mkOption {
39 type = lib.types.listOf lib.types.str;
40 default = [ ];
41 description = ''
42 A list of commandline-switches forwarded to a riemann-tool.
43 See for example `riemann-health --help` for available options.
44 '';
45 example = [
46 "-p 5555"
47 "--timeout=30"
48 "--attribute=myattribute=42"
49 ];
50 };
51 };
52 };
53
54 config = lib.mkIf cfg.enableHealth {
55
56 users.groups.riemanntools.gid = config.ids.gids.riemanntools;
57
58 users.users.riemanntools = {
59 description = "riemann-tools daemon user";
60 uid = config.ids.uids.riemanntools;
61 group = "riemanntools";
62 };
63
64 systemd.services.riemann-health = {
65 wantedBy = [ "multi-user.target" ];
66 path = [ pkgs.procps ];
67 serviceConfig = {
68 User = "riemanntools";
69 ExecStart = "${healthLauncher}/bin/riemann-health";
70 };
71 };
72
73 };
74
75}