The

register_config_loader

hook (https://kedro.readthedocs.io/en/latest/kedro.framework.hooks.specs.RegistrationSpecs.html#kedro.framework.hooks.specs.RegistrationSpecs.register_config_loader) also gets all the extra_params you'll be passing from command line. You can use that to add file_path to globals_dict. And also your filepath placeholder will be

${filepath}

. LMK if I'm not clear, I can help get a quick snippet later if you want.