infrastructure/machines/liminix/ap01/dns.nix

# SPDX-FileCopyrightText: 2024 Ryan Lahfa <ryan.lahfa@dgnum.eu>
#
# SPDX-License-Identifier: EUPL-1.2

{ config, pkgs, ... }:
let
  inherit (pkgs.liminix.services) oneshot;
  inherit (pkgs.pseudofile) dir symlink;
  inherit (pkgs) serviceFns;
in
{
  # TODO: support dynamic reconfiguration once we are in the target VLAN?
  services.resolvconf = oneshot rec {
    name = "resolvconf";
    up = ''
      . ${serviceFns}
      ( in_outputs ${name}
      for i in $(output ${config.services.dhcpv4} dns); do
        echo "nameserver $i" >> resolv.conf
      done
      )
    '';

    dependencies = [
      config.services.dhcpv4
    ];
  };

  filesystem = dir {
    etc = dir {
      "resolv.conf" = symlink "${config.services.resolvconf}/.outputs/resolv.conf";
    };
  };
}