(`node_config_active`) config sources, and a metric indicating whether the node is experiencing a config-related error (`node_config_error`). The config source metrics always report the value `1`, and carry the `node_config_name`, `node_config_uid`, `node_config_resource_version`, and `node_config_kubelet_key labels`, which identify the config version. The error metric reports `1` if there is an error, `0` otherwise. ([#57527](https://github.com/kubernetes/kubernetes/pull/57527), [@mtaufen](https://github.com/mtaufen))...