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DevOps & Automation · Foundational

Linting

Automated static checking of source code or configuration for style issues, errors, and suspicious constructs.

Definition

Linters such as pylint, flake8, ruff, ESLint, yamllint, ansible-lint, tflint, and hadolint run in pre-commit hooks and CI to catch problems before review.

Example

yamllint flags inconsistent indentation in a Kubernetes manifest before it is applied.

Exam tip

Linting is a fast, early (shift-left) check; it does not execute the code.

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