Read docker logs with unprivileged user?

Hi,

I am running kubernetes using docker as container runtime environment.
I would like to ship container logs via filebeat to elasticsearch for searching and aggregating the information provided by the logs.

If possible, I want to run filebeat as unprivileged user, but docker container logs have following default permissions on my system:

-rw-r-----. 1 root root

Is there a way to set the group to a specific group-id / group name? Then I could put filebeat user to be member of this group and it is able to read the logs.

Thanks, Andreas