Send logs from Fleet Docker Integration to specific data stream

I am using Fleet to manage our deployment. Most of our container-based logging is through Kubernetes, using the Kubernetes integration which allows me to specify the data_set.datastream to send the logs to (e.g., myapp.log).

However, I also have some logs I need to collect from docker instances from Docker using the Docker integration. As far as I can tell, there does not appear to be a way to send logs to a specific datastream, such as myapp.log.

Is there a way to do this, and how?