[Elastic-Agent] [Docker] Discuss: accessing logs from different container

I'd like to ask for your recommendation for users that prefer to run Elastic Agent in the container (let's say due to security reasons).

Let's discuss the scenario:

The integrated product is nginx running in a container. It produces logs stored locally in the image and which are rotated. As the agent is running in a different container, it can't simply access produced logs.

What is your recommendation in this particular case? Should the user expose somehow log files? Mirror them?

Background -
I had an interesting talk with @ycombinator about possibilites and testing scenarios and it looks that we will both have to nail this problem (force agent to watch logs produced in a different container).