Friend, I’m not trying to be rude here, but not only are you failing to understand to question from OP, you’re failing to understand the implications of what you’re also proposing with a container. OP wants to scan static files with an AV solution.

Are you proposing that they store ALL the files from their file server in a container? Are you suggesting they mount the volume to the container at runtime in order to access and scan them? Both are ridiculous solutions for different reasons. The former is just idiotic because it immediately removes the safety of said files and makes the container non-portable, and the latter because you’re just adding a container as overhead with zero benefit or added security to the host instance, just to scan files at regular intervals. A container with a volume mount is exactly the same thing as running the file servers on the host OS. You’re not making any sense.