I added the 0.57.0-alpha `LoggingAppender` to my logback config in a GKE service, however I noticed that the fields `container_name` and `namespace_id` are missing. This is important, because in the GKE UI, when clicking on "Container logs" for a given container, the filter is pre-populated with these fields (`resource.labels.container_name`, etc), and therefor no logs will show up unless those are populated. It looks like `MonitoredResourceUtil` from google-cloud-logging just needs to be enhanced to pick up these fields if running in GKE.