nixpkgs/nixos/modules/services/networking/nixops-dns.nix

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2018-02-20 10:14:55 +00:00
{ config, lib, pkgs, ... }:
with lib;
let
pkg = pkgs.nixops-dns;
cfg = config.services.nixops-dns;
in
{
options = {
services.nixops-dns = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Whether to enable the nixops-dns resolution
of NixOps virtual machines via dnsmasq and fake domain name.
'';
};
user = mkOption {
type = types.str;
description = ''
The user the nixops-dns daemon should run as.
This should be the user, which is also used for nixops and
have the .nixops directory in its home.
'';
};
domain = mkOption {
type = types.str;
description = ''
Fake domain name to resolve to NixOps virtual machines.
For example "ops" will resolve "vm.ops".
'';
example = "ops";
default = "ops";
};
dnsmasq = mkOption {
type = types.bool;
default = true;
description = ''
Enable dnsmasq forwarding to nixops-dns. This allows to use
nixops-dns for `services.nixops-dns.domain` resolution
while forwarding the rest of the queries to original resolvers.
'';
};
};
};
config = mkIf cfg.enable {
systemd.services.nixops-dns = {
description = "nixops-dns: DNS server for resolving NixOps machines";
wantedBy = [ "multi-user.target" ];
serviceConfig = {
Type = "simple";
User = cfg.user;
ExecStart="${pkg}/bin/nixops-dns --domain=.${cfg.domain}";
};
};
services.dnsmasq = mkIf cfg.dnsmasq {
enable = true;
resolveLocalQueries = true;
servers = [
"/${cfg.domain}/127.0.0.1#5300"
];
extraConfig = ''
bind-interfaces
listen-address=127.0.0.1
'';
};
};
}