diff options
Diffstat (limited to 'nixpkgs/nixos/modules/services/networking/dnsdist.nix')
-rw-r--r-- | nixpkgs/nixos/modules/services/networking/dnsdist.nix | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/nixpkgs/nixos/modules/services/networking/dnsdist.nix b/nixpkgs/nixos/modules/services/networking/dnsdist.nix new file mode 100644 index 000000000000..12eee136e639 --- /dev/null +++ b/nixpkgs/nixos/modules/services/networking/dnsdist.nix @@ -0,0 +1,61 @@ +{ config, lib, pkgs, ... }: + +with lib; + +let + cfg = config.services.dnsdist; + configFile = pkgs.writeText "dndist.conf" '' + setLocal('${cfg.listenAddress}:${toString cfg.listenPort}') + ${cfg.extraConfig} + ''; +in { + options = { + services.dnsdist = { + enable = mkEnableOption "dnsdist domain name server"; + + listenAddress = mkOption { + type = types.str; + description = "Listen IP Address"; + default = "0.0.0.0"; + }; + listenPort = mkOption { + type = types.int; + description = "Listen port"; + default = 53; + }; + + extraConfig = mkOption { + type = types.lines; + default = '' + ''; + description = '' + Extra lines to be added verbatim to dnsdist.conf. + ''; + }; + }; + }; + + config = mkIf config.services.dnsdist.enable { + systemd.services.dnsdist = { + description = "dnsdist load balancer"; + wantedBy = [ "multi-user.target" ]; + after = ["network.target"]; + + serviceConfig = { + Restart="on-failure"; + RestartSec="1"; + DynamicUser = true; + StartLimitInterval="0"; + PrivateTmp=true; + PrivateDevices=true; + CapabilityBoundingSet="CAP_NET_BIND_SERVICE CAP_SETGID CAP_SETUID"; + ExecStart = "${pkgs.dnsdist}/bin/dnsdist --supervised --disable-syslog --config ${configFile}"; + ProtectSystem="full"; + ProtectHome=true; + RestrictAddressFamilies="AF_UNIX AF_INET AF_INET6"; + LimitNOFILE="16384"; + TasksMax="8192"; + }; + }; + }; +} |