Which way to deliver structured logs from a Python application to ELK should I choose?

Question

Python

There is a task of sending structured logs from several Python applications running in Docker containers. Some of them work on asyncio. At the moment I see 2 options:

1. Use Logstash handler
   
2. Use file handler and Filebeat
   

Which of these options is more reliable in operation?

Answer 1

Third option: docker input to Filebeat
The docker processes themselves should not be logging, this is not their responsibility.
Reasons:
1. Single responsibility principle of docker containers from best practice
2. Eleventh rule 12 factor app.