1{ config, lib, pkgs, ... }:
2
3with lib;
4
5let
6 cfg = config.services.nextdns;
7in {
8 options = {
9 services.nextdns = {
10 enable = mkOption {
11 type = types.bool;
12 default = false;
13 description = lib.mdDoc "Whether to enable the NextDNS DNS/53 to DoH Proxy service.";
14 };
15 arguments = mkOption {
16 type = types.listOf types.str;
17 default = [];
18 example = [ "-config" "10.0.3.0/24=abcdef" ];
19 description = lib.mdDoc "Additional arguments to be passed to nextdns run.";
20 };
21 };
22 };
23
24 # https://github.com/nextdns/nextdns/blob/628ea509eaaccd27adb66337db03e5b56f6f38a8/host/service/systemd/service.go
25 config = mkIf cfg.enable {
26 systemd.services.nextdns = {
27 description = "NextDNS DNS/53 to DoH Proxy";
28 environment = {
29 SERVICE_RUN_MODE = "1";
30 };
31 startLimitIntervalSec = 5;
32 startLimitBurst = 10;
33 serviceConfig = {
34 ExecStart = "${pkgs.nextdns}/bin/nextdns run ${escapeShellArgs config.services.nextdns.arguments}";
35 RestartSec = 120;
36 LimitMEMLOCK = "infinity";
37 };
38 after = [ "network.target" ];
39 before = [ "nss-lookup.target" ];
40 wants = [ "nss-lookup.target" ];
41 wantedBy = [ "multi-user.target" ];
42 };
43 };
44}