nixpkgs/nixos/modules/services/networking/skydns.nix

94 lines
2.6 KiB
Nix

{ config, pkgs, lib, ... }:
with lib;
let
cfg = config.services.skydns;
in {
options.services.skydns = {
enable = mkEnableOption "skydns service";
etcd = {
machines = mkOption {
default = [ "http://127.0.0.1:2379" ];
type = types.listOf types.str;
description = "Skydns list of etcd endpoints to connect to.";
};
tlsKey = mkOption {
default = null;
type = types.nullOr types.path;
description = "Skydns path of TLS client certificate - private key.";
};
tlsPem = mkOption {
default = null;
type = types.nullOr types.path;
description = "Skydns path of TLS client certificate - public key.";
};
caCert = mkOption {
default = null;
type = types.nullOr types.path;
description = "Skydns path of TLS certificate authority public key.";
};
};
address = mkOption {
default = "0.0.0.0:53";
type = types.str;
description = "Skydns address to bind to.";
};
domain = mkOption {
default = "skydns.local.";
type = types.str;
description = "Skydns default domain if not specified by etcd config.";
};
nameservers = mkOption {
default = map (n: n + ":53") config.networking.nameservers;
defaultText = literalExpression ''map (n: n + ":53") config.networking.nameservers'';
type = types.listOf types.str;
description = "Skydns list of nameservers to forward DNS requests to when not authoritative for a domain.";
example = ["8.8.8.8:53" "8.8.4.4:53"];
};
package = mkOption {
default = pkgs.skydns;
defaultText = literalExpression "pkgs.skydns";
type = types.package;
description = "Skydns package to use.";
};
extraConfig = mkOption {
default = {};
type = types.attrsOf types.str;
description = "Skydns attribute set of extra config options passed as environment variables.";
};
};
config = mkIf (cfg.enable) {
systemd.services.skydns = {
wantedBy = [ "multi-user.target" ];
after = [ "network.target" "etcd.service" ];
description = "Skydns Service";
environment = {
ETCD_MACHINES = concatStringsSep "," cfg.etcd.machines;
ETCD_TLSKEY = cfg.etcd.tlsKey;
ETCD_TLSPEM = cfg.etcd.tlsPem;
ETCD_CACERT = cfg.etcd.caCert;
SKYDNS_ADDR = cfg.address;
SKYDNS_DOMAIN = cfg.domain;
SKYDNS_NAMESERVERS = concatStringsSep "," cfg.nameservers;
};
serviceConfig = {
ExecStart = "${cfg.package}/bin/skydns";
};
};
environment.systemPackages = [ cfg.package ];
};
}