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|
{
config,
lib,
pkgs,
...
}:
let
inherit (lib)
concatStringsSep
escapeShellArgs
getExe
mkEnableOption
mkIf
mkOption
mkPackageOption
mkRemovedOptionModule
types
;
cfg = config.services.prometheus.exporters.node;
in {
imports = [
(mkRemovedOptionModule [ "services" "prometheus" "exporters" "node" "openFirewall" ] "No nix-darwin equivalent to this NixOS option.")
(mkRemovedOptionModule [ "services" "prometheus" "exporters" "node" "firewallFilter" ] "No nix-darwin equivalent to this NixOS option.")
(mkRemovedOptionModule [ "services" "prometheus" "exporters" "node" "firewallRules" ] "No nix-darwin equivalent to this NixOS option.")
];
options = {
services.prometheus.exporters.node = {
enable = mkEnableOption "Prometheus Node exporter";
package = mkPackageOption pkgs "prometheus-node-exporter" { };
listenAddress = mkOption {
type = types.str;
default = "";
example = "0.0.0.0";
description = ''
Address where Node exporter exposes its HTTP interface. Leave empty to bind to all addresses.
'';
};
port = mkOption {
type = types.port;
default = 9100;
description = ''
Port where the Node exporter exposes its HTTP interface.
'';
};
extraFlags = mkOption {
type = types.listOf types.str;
default = [ ];
example = [ "--log.level=debug" ];
description = ''
Extra commandline options to pass to the Node exporter executable.
'';
};
enabledCollectors = mkOption {
type = types.listOf types.str;
default = [ ];
description = ''
Collectors to enable in addition to the ones that are [enabled by default](https://github.com/prometheus/node_exporter#enabled-by-default).
'';
};
disabledCollectors = mkOption {
type = types.listOf types.str;
default = [ ];
example = [ "boottime" ];
description = ''
Collectors to disable from the list of collectors that are [enabled by default](https://github.com/prometheus/node_exporter#enabled-by-default).
'';
};
};
};
config = mkIf cfg.enable {
users.users._prometheus-node-exporter = {
uid = config.ids.uids._prometheus-node-exporter;
gid = config.ids.gids._prometheus-node-exporter;
home = "/var/lib/prometheus-node-exporter";
createHome = true;
shell = "/usr/bin/false";
description = "System user for the Prometheus Node exporter";
};
users.groups._prometheus-node-exporter = {
gid = config.ids.gids._prometheus-node-exporter;
description = "System group for the Prometheus Node exporter";
};
users.knownGroups = [ "_prometheus-node-exporter" ];
users.knownUsers = [ "_prometheus-node-exporter" ];
launchd.daemons.prometheus-node-exporter = {
script = concatStringsSep " "
([
(getExe cfg.package)
"--web.listen-address"
"${cfg.listenAddress}:${toString cfg.port}"
]
++ (map (collector: "--collector.${collector}") cfg.enabledCollectors)
++ (map (collector: "--no-collector.${collector}") cfg.disabledCollectors)
) + escapeShellArgs cfg.extraFlags;
serviceConfig = let
logPath = config.users.users._prometheus-node-exporter.home
+ "/prometheus-node-exporter.log";
in {
KeepAlive = true;
RunAtLoad = true;
StandardErrorPath = logPath;
StandardOutPath = logPath;
GroupName = "_prometheus-node-exporter";
UserName = "_prometheus-node-exporter";
};
};
};
}
|
