leksah VS hadolint

There is already an Haskell IDE written in haskell : Leksah

There are Nix based installation instructions for Mac and Linux. (Getting familiar with Nix can help with managing the Haskell package and tools ecosystem more generally – so it's good Yak shaving...).

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.

Hadolint

Switching to the root USER opens up certain security risks if an attacker gets access to the container. In order to mitigate this, switch back to a non privileged user after running the commands you need as root. – Hadolint rule DL3002

Hadolint for more SAST like : https://github.com/hadolint/hadolint

Hadolint is another. It's built atop shellcheck.

https://github.com/hadolint/hadolint

I use Hadolint[1] as a CI job to check if my Dockerfiles follow the good "rules". But there is one rule that annoys me the most and which is also present in this article, is the pinned OS package version rule[2]. While I understand its interest, I struggle to handle this problem.

When I build new images and it failed because the pinned version is not available anymore, I have to dig into Debian or Ubuntu packages websites to find the new ones as they don't keep the old packages online.

I know I could ask Hadolint to ignore this rule but I don't like this and I think it's important to stick to a certain version of a package to avoid problems. I'm just trying to find any tip that could make me use pinned version and avoid this search every time. Does apt-get install allows wildcard for example?

1: https://github.com/hadolint/hadolint

2: https://github.com/hadolint/hadolint/wiki/DL3008

Another useful resource is hadolint (https://github.com/hadolint/hadolint), which not only gives additional recommendations, but also a way to enforce this.

RUN curl -sSL "https://github.com/hadolint/hadolint/releases/download/$HADO..." -o /usr/bin/hadolint