stockholm/lass/3modules/telegraf.nix
2017-02-03 00:23:59 +01:00

85 lines
1.6 KiB
Nix

{ config, lib, pkgs, ... }:
with builtins;
with lib;
let
cfg = config.lass.telegraf;
out = {
options.lass.telegraf = api;
config = mkIf cfg.enable imp;
};
api = {
enable = mkEnableOption "telegraf";
dataDir = mkOption {
type = types.str;
default = "/var/lib/telegraf";
};
user = mkOption {
type = types.str;
default = "telegraf";
};
outputs = mkOption {
type = types.str;
default = ''
[outputs.influxdb]
urls = ["http://localhost:8086"]
database = "telegraf_db"
user_agent = "telegraf"
'';
};
inputs = mkOption {
type = with types; listOf str;
default = [
''
[cpu]
percpu = false
totalcpu = true
drop = ["cpu_time"]
''
];
};
interval = mkOption {
type = types.str;
default = "10s";
};
config = mkOption {
type = types.str;
#TODO: find a good default
default = ''
[agent]
interval = "${cfg.interval}"
[outputs]
${cfg.outputs}
${concatStringsSep "\n" cfg.inputs}
'';
description = "configuration telegraf is started with";
};
};
configFile = pkgs.writeText "telegraf.conf" cfg.config;
imp = {
systemd.services.telegraf = {
description = "telegraf";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
restartIfChanged = true;
serviceConfig = {
Restart = "always";
ExecStart = "${pkgs.telegraf}/bin/telegraf -config ${configFile}";
};
};
};
in out