How to Use: hadolint

One-minute read
docker • tutorial • linting • productivity • development

Install Link to heading

It’s not available in any package manager, so use the Docker image:

docker run --rm -it -v "$PWD":/work -w /work hadolint/hadolint:latest-alpine sh

Configure Link to heading

Add a .hadolint.yaml file containing your rules:

---

ignored:
  - DL3018

Use Link to heading

Single file:

hadolint ./path/to/Dockerfile

All files:

find . -name Dockerfile | xargs hadolint

Files known to git:

hadolint $(git ls-files | grep Dockerfile)