depot/third_party/nixpkgs/nixos/modules/services/monitoring/riemann-tools.nix

70 lines
1.6 KiB
Nix

{ config, pkgs, lib, ... }:
with pkgs;
with lib;
let
cfg = config.services.riemann-tools;
riemannHost = "${cfg.riemannHost}";
healthLauncher = writeScriptBin "riemann-health" ''
#!/bin/sh
exec ${pkgs.riemann-tools}/bin/riemann-health ${builtins.concatStringsSep " " cfg.extraArgs} --host ${riemannHost}
'';
in {
options = {
services.riemann-tools = {
enableHealth = mkOption {
type = types.bool;
default = false;
description = ''
Enable the riemann-health daemon.
'';
};
riemannHost = mkOption {
type = types.str;
default = "127.0.0.1";
description = ''
Address of the host riemann node. Defaults to localhost.
'';
};
extraArgs = mkOption {
type = types.listOf types.str;
default = [];
description = ''
A list of commandline-switches forwarded to a riemann-tool.
See for example `riemann-health --help` for available options.
'';
example = ["-p 5555" "--timeout=30" "--attribute=myattribute=42"];
};
};
};
config = mkIf cfg.enableHealth {
users.groups.riemanntools.gid = config.ids.gids.riemanntools;
users.users.riemanntools = {
description = "riemann-tools daemon user";
uid = config.ids.uids.riemanntools;
group = "riemanntools";
};
systemd.services.riemann-health = {
wantedBy = [ "multi-user.target" ];
path = [ procps ];
serviceConfig = {
User = "riemanntools";
ExecStart = "${healthLauncher}/bin/riemann-health";
};
};
};
}