nixpkgs/nixos/modules/services/monitoring/prometheus/exporters/script.nix
2021-10-04 12:47:20 +02:00

64 lines
1.8 KiB
Nix

{ config, lib, pkgs, options }:
with lib;
let
cfg = config.services.prometheus.exporters.script;
configFile = pkgs.writeText "script-exporter.yaml" (builtins.toJSON cfg.settings);
in
{
port = 9172;
extraOpts = {
settings.scripts = mkOption {
type = with types; listOf (submodule {
options = {
name = mkOption {
type = str;
example = "sleep";
description = "Name of the script.";
};
script = mkOption {
type = str;
example = "sleep 5";
description = "Shell script to execute when metrics are requested.";
};
timeout = mkOption {
type = nullOr int;
default = null;
example = 60;
description = "Optional timeout for the script in seconds.";
};
};
});
example = literalExpression ''
{
scripts = [
{ name = "sleep"; script = "sleep 5"; }
];
}
'';
description = ''
All settings expressed as an Nix attrset.
Check the official documentation for the corresponding YAML
settings that can all be used here: <link xlink:href="https://github.com/adhocteam/script_exporter#sample-configuration" />
'';
};
};
serviceOpts = {
serviceConfig = {
ExecStart = ''
${pkgs.prometheus-script-exporter}/bin/script_exporter \
--web.listen-address ${cfg.listenAddress}:${toString cfg.port} \
--config.file ${configFile} \
${concatStringsSep " \\\n " cfg.extraFlags}
'';
NoNewPrivileges = true;
ProtectHome = true;
ProtectSystem = "strict";
ProtectKernelTunables = true;
ProtectKernelModules = true;
ProtectControlGroups = true;
};
};
}