Service to upload your Dockerfile and check if it complies with the assigned rules.
It works by defining your rules in a file, rules.yaml for example, and running the tool against the Dockerfile you want to test. This tool is useful as a previous step to do your docker build to guarantee that you only build docker images that match your rules.
For example, you can whitelist or blacklist images. Make sure the user is set to non-root or that it doesn't define certain volumes.