nixos/modules/services/networking/gobgpd.nix

   1 {
   2   config,
   3   pkgs,
   4   lib,
   5   ...
   6 }:
   7 let
   8   cfg = config.services.gobgpd;
   9   format = pkgs.formats.toml { };
  10   confFile = format.generate "gobgpd.conf" cfg.settings;
  11 in
  12 {
  13   options.services.gobgpd = {
  14     enable = lib.mkEnableOption "GoBGP Routing Daemon";
  15
  16     settings = lib.mkOption {
  17       type = format.type;
  18       default = { };
  19       description = ''
  20         GoBGP configuration. Refer to
  21         <https://github.com/osrg/gobgp#documentation>
  22         for details on supported values.
  23       '';
  24       example = lib.literalExpression ''
  25         {
  26           global = {
  27             config = {
  28               as = 64512;
  29               router-id = "192.168.255.1";
  30             };
  31           };
  32           neighbors = [
  33             {
  34               config = {
  35                 neighbor-address = "10.0.255.1";
  36                 peer-as = 65001;
  37               };
  38             }
  39             {
  40               config = {
  41                 neighbor-address = "10.0.255.2";
  42                 peer-as = 65002;
  43               };
  44             }
  45           ];
  46         }
  47       '';
  48     };
  49   };
  50
  51   config = lib.mkIf cfg.enable {
  52     environment.systemPackages = [ pkgs.gobgpd ];
  53     systemd.services.gobgpd = {
  54       wantedBy = [ "multi-user.target" ];
  55       after = [ "network.target" ];
  56       description = "GoBGP Routing Daemon";
  57       serviceConfig = {
  58         Type = "notify";
  59         ExecStartPre = "${pkgs.gobgpd}/bin/gobgpd -f ${confFile} -d";
  60         ExecStart = "${pkgs.gobgpd}/bin/gobgpd -f ${confFile} --sdnotify";
  61         ExecReload = "${pkgs.gobgpd}/bin/gobgpd -r";
  62         DynamicUser = true;
  63         AmbientCapabilities = "cap_net_bind_service";
  64       };
  65     };
  66   };
  67 }