nixpkgs/nixos/modules/services/networking/corerad.nix
2021-10-04 12:47:20 +02:00

83 lines
2.4 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.corerad;
settingsFormat = pkgs.formats.toml {};
in {
meta.maintainers = with maintainers; [ mdlayher ];
options.services.corerad = {
enable = mkEnableOption "CoreRAD IPv6 NDP RA daemon";
settings = mkOption {
type = settingsFormat.type;
example = literalExpression ''
{
interfaces = [
# eth0 is an upstream interface monitoring for IPv6 router advertisements.
{
name = "eth0";
monitor = true;
}
# eth1 is a downstream interface advertising IPv6 prefixes for SLAAC.
{
name = "eth1";
advertise = true;
prefix = [{ prefix = "::/64"; }];
}
];
# Optionally enable Prometheus metrics.
debug = {
address = "localhost:9430";
prometheus = true;
};
}
'';
description = ''
Configuration for CoreRAD, see <link xlink:href="https://github.com/mdlayher/corerad/blob/main/internal/config/reference.toml"/>
for supported values. Ignored if configFile is set.
'';
};
configFile = mkOption {
type = types.path;
example = literalExpression ''"''${pkgs.corerad}/etc/corerad/corerad.toml"'';
description = "Path to CoreRAD TOML configuration file.";
};
package = mkOption {
default = pkgs.corerad;
defaultText = literalExpression "pkgs.corerad";
type = types.package;
description = "CoreRAD package to use.";
};
};
config = mkIf cfg.enable {
# Prefer the config file over settings if both are set.
services.corerad.configFile = mkDefault (settingsFormat.generate "corerad.toml" cfg.settings);
systemd.services.corerad = {
description = "CoreRAD IPv6 NDP RA daemon";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
LimitNPROC = 512;
LimitNOFILE = 1048576;
CapabilityBoundingSet = "CAP_NET_ADMIN CAP_NET_RAW";
AmbientCapabilities = "CAP_NET_ADMIN CAP_NET_RAW";
NoNewPrivileges = true;
DynamicUser = true;
Type = "notify";
NotifyAccess = "main";
ExecStart = "${getBin cfg.package}/bin/corerad -c=${cfg.configFile}";
Restart = "on-failure";
RestartKillSignal = "SIGHUP";
};
};
};
}