Abhishek Kumar created RANGER-5233:
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Summary: Introduce Hadolint for Dockerfile linting and best
practices
Key: RANGER-5233
URL: https://issues.apache.org/jira/browse/RANGER-5233
Project: Ranger
Issue Type: Improvement
Components: docker
Affects Versions: 2.6.0
Reporter: Abhishek Kumar
Assignee: Abhishek Kumar
In a codebase with multiple Dockerfiles, maintaining consistency, reliability,
and security becomes increasingly critical.
Hadolint: https://github.com/hadolint/hadolint provides an automated,
standards-based way to catch common mistakes, enforce best practices, and flag
potential security issues early in the development process.
By integrating Hadolint, developers can avoid subtle bugs (like incorrect COPY
orders or inefficient layer usage), reduce image size, and ensure compliance
with Dockerfile conventions. It acts as a lightweight yet powerful guardrail
that scales seamlessly as the number of Dockerfiles grows.
Useful resources:
https://8grams.medium.com/hadolint-dockerfile-linter-3611be578a1a
https://medium.com/@guennounbadr2/from-good-to-great-perfecting-dockerfiles-with-hadolint-in-gitlab-ci-6055a2e1f088
https://devopscube.com/lint-dockerfiles-using-hadolint/
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