pyrox.dev
1{ config, lib, pkgs, ... }:
2
3with lib;
4let
5 pkg = pkgs.nixops-dns;
6 cfg = config.services.nixops-dns;
7in
8
9{
10 options = {
11 services.nixops-dns = {
12 enable = mkOption {
13 type = types.bool;
14 default = false;
15 description = lib.mdDoc ''
16 Whether to enable the nixops-dns resolution
17 of NixOps virtual machines via dnsmasq and fake domain name.
18 '';
19 };
20
21 user = mkOption {
22 type = types.str;
23 description = lib.mdDoc ''
24 The user the nixops-dns daemon should run as.
25 This should be the user, which is also used for nixops and
26 have the .nixops directory in its home.
27 '';
28 };
29
30 domain = mkOption {
31 type = types.str;
32 description = lib.mdDoc ''
33 Fake domain name to resolve to NixOps virtual machines.
34
35 For example "ops" will resolve "vm.ops".
36 '';
37 default = "ops";
38 };
39
40 dnsmasq = mkOption {
41 type = types.bool;
42 default = true;
43 description = lib.mdDoc ''
44 Enable dnsmasq forwarding to nixops-dns. This allows to use
45 nixops-dns for `services.nixops-dns.domain` resolution
46 while forwarding the rest of the queries to original resolvers.
47 '';
48 };
49
50 };
51 };
52
53 config = mkIf cfg.enable {
54 systemd.services.nixops-dns = {
55 description = "nixops-dns: DNS server for resolving NixOps machines";
56 wantedBy = [ "multi-user.target" ];
57
58 serviceConfig = {
59 Type = "simple";
60 User = cfg.user;
61 ExecStart="${pkg}/bin/nixops-dns --domain=.${cfg.domain}";
62 };
63 };
64
65 services.dnsmasq = mkIf cfg.dnsmasq {
66 enable = true;
67 resolveLocalQueries = true;
68 servers = [
69 "/${cfg.domain}/127.0.0.1#5300"
70 ];
71 extraConfig = ''
72 bind-interfaces
73 listen-address=127.0.0.1
74 '';
75 };
76
77 };
78}