pyrox.dev
1{ config, pkgs, lib, ... }:
2
3with pkgs;
4with lib;
5
6let
7
8 cfg = config.services.riemann;
9
10 classpath = concatStringsSep ":" (
11 cfg.extraClasspathEntries ++ [ "${riemann}/share/java/riemann.jar" ]
12 );
13
14 riemannConfig = concatStringsSep "\n" (
15 [cfg.config] ++ (map (f: ''(load-file "${f}")'') cfg.configFiles)
16 );
17
18 launcher = writeScriptBin "riemann" ''
19 #!/bin/sh
20 exec ${jdk}/bin/java ${concatStringsSep " " cfg.extraJavaOpts} \
21 -cp ${classpath} \
22 riemann.bin ${cfg.configFile}
23 '';
24
25in {
26
27 options = {
28
29 services.riemann = {
30 enable = mkEnableOption (lib.mdDoc "Riemann network monitoring daemon");
31
32 config = mkOption {
33 type = types.lines;
34 description = lib.mdDoc ''
35 Contents of the Riemann configuration file. For more complicated
36 config you should use configFile.
37 '';
38 };
39 configFiles = mkOption {
40 type = with types; listOf path;
41 default = [];
42 description = lib.mdDoc ''
43 Extra files containing Riemann configuration. These files will be
44 loaded at runtime by Riemann (with Clojure's
45 `load-file` function) at the end of the
46 configuration if you use the config option, this is ignored if you
47 use configFile.
48 '';
49 };
50 configFile = mkOption {
51 type = types.str;
52 description = lib.mdDoc ''
53 A Riemann config file. Any files in the same directory as this file
54 will be added to the classpath by Riemann.
55 '';
56 };
57 extraClasspathEntries = mkOption {
58 type = with types; listOf str;
59 default = [];
60 description = lib.mdDoc ''
61 Extra entries added to the Java classpath when running Riemann.
62 '';
63 };
64 extraJavaOpts = mkOption {
65 type = with types; listOf str;
66 default = [];
67 description = lib.mdDoc ''
68 Extra Java options used when launching Riemann.
69 '';
70 };
71 };
72 };
73
74 config = mkIf cfg.enable {
75
76 users.groups.riemann.gid = config.ids.gids.riemann;
77
78 users.users.riemann = {
79 description = "riemann daemon user";
80 uid = config.ids.uids.riemann;
81 group = "riemann";
82 };
83
84 services.riemann.configFile = mkDefault (
85 writeText "riemann-config.clj" riemannConfig
86 );
87
88 systemd.services.riemann = {
89 wantedBy = [ "multi-user.target" ];
90 path = [ inetutils ];
91 serviceConfig = {
92 User = "riemann";
93 ExecStart = "${launcher}/bin/riemann";
94 };
95 serviceConfig.LimitNOFILE = 65536;
96 };
97
98 };
99
100}