bgpwtf/machines/modules/rename-interfaces.nix

# Sketchy little module to renamei interfaces by MAC.
# This only works on startup.

{ config, lib, pkgs, ... }:

with lib;
let
  cfg = config.hscloud.renameInterfaces;
in {
  options.hscloud.renameInterfaces = mkOption {
    type = with types; attrsOf (submodule {
      options = {
        mac = mkOption {
          type = types.str;
          description = ''
            MAC address to match by, in hexadecimal form (ie. ac:1f:6b:1c:d7:ae).
          '';
        };
      };
    });
    description = ''
      Interfaces to rename by property (eg. MAC address).
    '';
  };

  config.services.udev.extraRules = concatStringsSep "\n" (mapAttrsToList (n: v: ''
    ACTION=="add", SUBSYSTEM=="net", ATTR{address}=="${v.mac}", ATTR{addr_assign_type}=="0", NAME="${n}"
  '') cfg);
}