Hi,
I notice you already create a dedicated user in your Dockerfile. But (almost) at the end of the the Dockerfile (after you did all the COPY stuff..) it might be wise to change the default user, like in your Dockerfile:
USER reviewboard
WORKDIR /site
Output logging of docker-bench-security.sh:
---
[INFO] 4 - Container Images and Build File
[WARN] 4.1 - Ensure that a user for the container has been created (Automated)
[WARN] * Running as root: docker-reviewboard-1
---
Anyway, you can run docker-bench-security for yourself as well.
Regards,
Melroy van den Berg