Override submodule options

iSma · April 8, 2021, 6:22am

Turns out it was easier than expected, you just need to redefine the attrsOf option, and it looks like the module system will take care of merging the sub-options:

{ config, lib, ... }:
with lib;
let
  interfaceModule = { name, config, ... }:
    {
      options = {
        myNewOption = mkOption {
          type = types.str;
        };
      };
    };
in
{
    options = {
      networking.interfaces = mkOption {
        type = types.attrsOf (types.submodule interfaceModule);
      };
    };
}