nixpkgs/nixos/modules/services/monitoring/riemann.nix
pennae 2e751c0772 treewide: automatically md-convert option descriptions
the conversion procedure is simple:

 - find all things that look like options, ie calls to either `mkOption`
   or `lib.mkOption` that take an attrset. remember the attrset as the
   option
 - for all options, find a `description` attribute who's value is not a
   call to `mdDoc` or `lib.mdDoc`
 - textually convert the entire value of the attribute to MD with a few
   simple regexes (the set from mdize-module.sh)
 - if the change produced a change in the manual output, discard
 - if the change kept the manual unchanged, add some text to the
   description to make sure we've actually found an option. if the
   manual changes this time, keep the converted description

this procedure converts 80% of nixos options to markdown. around 2000
options remain to be inspected, but most of those fail the "does not
change the manual output check": currently the MD conversion process
does not faithfully convert docbook tags like <code> and <package>, so
any option using such tags will not be converted at all.
2022-07-30 15:16:34 +02:00

105 lines
2.6 KiB
Nix

{ config, pkgs, lib, ... }:
with pkgs;
with lib;
let
cfg = config.services.riemann;
classpath = concatStringsSep ":" (
cfg.extraClasspathEntries ++ [ "${riemann}/share/java/riemann.jar" ]
);
riemannConfig = concatStringsSep "\n" (
[cfg.config] ++ (map (f: ''(load-file "${f}")'') cfg.configFiles)
);
launcher = writeScriptBin "riemann" ''
#!/bin/sh
exec ${jdk}/bin/java ${concatStringsSep " " cfg.extraJavaOpts} \
-cp ${classpath} \
riemann.bin ${cfg.configFile}
'';
in {
options = {
services.riemann = {
enable = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc ''
Enable the Riemann network monitoring daemon.
'';
};
config = mkOption {
type = types.lines;
description = lib.mdDoc ''
Contents of the Riemann configuration file. For more complicated
config you should use configFile.
'';
};
configFiles = mkOption {
type = with types; listOf path;
default = [];
description = lib.mdDoc ''
Extra files containing Riemann configuration. These files will be
loaded at runtime by Riemann (with Clojure's
`load-file` function) at the end of the
configuration if you use the config option, this is ignored if you
use configFile.
'';
};
configFile = mkOption {
type = types.str;
description = lib.mdDoc ''
A Riemann config file. Any files in the same directory as this file
will be added to the classpath by Riemann.
'';
};
extraClasspathEntries = mkOption {
type = with types; listOf str;
default = [];
description = lib.mdDoc ''
Extra entries added to the Java classpath when running Riemann.
'';
};
extraJavaOpts = mkOption {
type = with types; listOf str;
default = [];
description = lib.mdDoc ''
Extra Java options used when launching Riemann.
'';
};
};
};
config = mkIf cfg.enable {
users.groups.riemann.gid = config.ids.gids.riemann;
users.users.riemann = {
description = "riemann daemon user";
uid = config.ids.uids.riemann;
group = "riemann";
};
services.riemann.configFile = mkDefault (
writeText "riemann-config.clj" riemannConfig
);
systemd.services.riemann = {
wantedBy = [ "multi-user.target" ];
path = [ inetutils ];
serviceConfig = {
User = "riemann";
ExecStart = "${launcher}/bin/riemann";
};
serviceConfig.LimitNOFILE = 65536;
};
};
}