pyrox.dev
1{ config, pkgs, lib, ... }:
2
3with lib;
4
5let
6 cfg = config.services.skydns;
7
8in {
9 options.services.skydns = {
10 enable = mkEnableOption "skydns service";
11
12 etcd = {
13 machines = mkOption {
14 default = [ "http://127.0.0.1:2379" ];
15 type = types.listOf types.str;
16 description = "Skydns list of etcd endpoints to connect to.";
17 };
18
19 tlsKey = mkOption {
20 default = null;
21 type = types.nullOr types.path;
22 description = "Skydns path of TLS client certificate - private key.";
23 };
24
25 tlsPem = mkOption {
26 default = null;
27 type = types.nullOr types.path;
28 description = "Skydns path of TLS client certificate - public key.";
29 };
30
31 caCert = mkOption {
32 default = null;
33 type = types.nullOr types.path;
34 description = "Skydns path of TLS certificate authority public key.";
35 };
36 };
37
38 address = mkOption {
39 default = "0.0.0.0:53";
40 type = types.str;
41 description = "Skydns address to bind to.";
42 };
43
44 domain = mkOption {
45 default = "skydns.local.";
46 type = types.str;
47 description = "Skydns default domain if not specified by etcd config.";
48 };
49
50 nameservers = mkOption {
51 default = map (n: n + ":53") config.networking.nameservers;
52 defaultText = literalExpression ''map (n: n + ":53") config.networking.nameservers'';
53 type = types.listOf types.str;
54 description = "Skydns list of nameservers to forward DNS requests to when not authoritative for a domain.";
55 example = ["8.8.8.8:53" "8.8.4.4:53"];
56 };
57
58 package = mkPackageOption pkgs "skydns" { };
59
60 extraConfig = mkOption {
61 default = {};
62 type = types.attrsOf types.str;
63 description = "Skydns attribute set of extra config options passed as environment variables.";
64 };
65 };
66
67 config = mkIf (cfg.enable) {
68 systemd.services.skydns = {
69 wantedBy = [ "multi-user.target" ];
70 after = [ "network.target" "etcd.service" ];
71 description = "Skydns Service";
72 environment = {
73 ETCD_MACHINES = concatStringsSep "," cfg.etcd.machines;
74 ETCD_TLSKEY = cfg.etcd.tlsKey;
75 ETCD_TLSPEM = cfg.etcd.tlsPem;
76 ETCD_CACERT = cfg.etcd.caCert;
77 SKYDNS_ADDR = cfg.address;
78 SKYDNS_DOMAIN = cfg.domain;
79 SKYDNS_NAMESERVERS = concatStringsSep "," cfg.nameservers;
80 };
81 serviceConfig = {
82 ExecStart = "${cfg.package}/bin/skydns";
83 };
84 };
85
86 environment.systemPackages = [ cfg.package ];
87 };
88}