61 lines
1.5 KiB
Nix
61 lines
1.5 KiB
Nix
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{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.dnsdist;
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configFile = pkgs.writeText "dndist.conf" ''
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setLocal('${cfg.listenAddress}:${toString cfg.listenPort}')
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${cfg.extraConfig}
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'';
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in {
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options = {
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services.dnsdist = {
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enable = mkEnableOption "dnsdist domain name server";
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listenAddress = mkOption {
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type = types.str;
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description = "Listen IP Address";
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default = "0.0.0.0";
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};
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listenPort = mkOption {
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type = types.int;
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description = "Listen port";
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default = 53;
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};
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extraConfig = mkOption {
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type = types.lines;
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default = ''
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'';
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description = ''
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Extra lines to be added verbatim to dnsdist.conf.
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'';
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};
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};
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};
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config = mkIf config.services.dnsdist.enable {
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systemd.services.dnsdist = {
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description = "dnsdist load balancer";
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wantedBy = [ "multi-user.target" ];
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after = ["network.target"];
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serviceConfig = {
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Restart="on-failure";
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RestartSec="1";
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DynamicUser = true;
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StartLimitInterval="0";
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PrivateDevices=true;
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AmbientCapabilities="CAP_NET_BIND_SERVICE";
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CapabilityBoundingSet="CAP_NET_BIND_SERVICE";
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ExecStart = "${pkgs.dnsdist}/bin/dnsdist --supervised --disable-syslog --config ${configFile}";
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ProtectHome=true;
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RestrictAddressFamilies="AF_UNIX AF_INET AF_INET6";
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LimitNOFILE="16384";
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TasksMax="8192";
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};
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};
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};
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}
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