hadolint VS docker-bench-security

Some discussion on that here:

https://github.com/koalaman/shellcheck/issues/58

The hadolint project does shell checking for Dockerfiles and it uses shellcheck:

https://github.com/hadolint/hadolint

So the approach is definitely feasible, but you do need a new project and probably it needs to be written in Haskell.

how does this compare to something like hadolint?

Also, have you run across Hadolint for linting? https://github.com/hadolint/hadolint

Wow that's a great tool and it has a ton of integrations https://github.com/hadolint/hadolint/blob/master/docs/INTEGRATION.md

Worth noting that Hadolint[1] raises warnings the issues mentioned in the article. Some examples of warnings:

- https://github.com/hadolint/hadolint/wiki/DL3007: Using latest is prone to errors if the image will ever update. Pin the version explicitly to a release tag.

Dockerfile should be checked during development by automated scanners (Kics, Hadolint, Conftest)

Linters are an effective way to catch (security) bugs early on in your development process. For most programming languages using linters is pretty standard. Hadolint is a linter for your Dockerfiles and is found on github here.

Best practices for writing Dockerfiles are being followed more and more often according to this paper after mining more than 10 million Dockerfiles on Docker Hub and GitHub. However, there is still room for improvement. This is where linters come in as useful tools for static code analysis. Hadolint lists lots of rules for Dockerfiles and is available as a VS Code extension.

Use Docker Bench for Security to audit your container images

Other tools you can use are linux-bench, docker-bench, kube-bench, kube-hunter, kube-striker, Cloud Custodian, OVAL, and OS Query.

CIS Docker benchmark is a very extensive rule set for assessing docker host, daemon, images and containers from the security perspective.

It comes with a very handy tool as well https://github.com/docker/docker-bench-security