Dockerfile Validator

Purpose and use: This tool validates Dockerfiles by checking syntax, directive order, and common pitfalls for developers, DevOps teams, and CI engineers. It yields targeted feedback suitable for automated processing.
Conceptual operation: A parser tokenizes directives, applies a rule set, and flags issues with line references, severities, and fixes. It supports multi-stage builds and detects anti-patterns such as missing cleanup in RUN steps and improper layering.
Benefits and differentiators: Real-time linting paired with a structured report enables automation and faster triage in pipelines. It emphasizes maintainability and efficiency and provides actionable suggestions for optimizing image layers and reducing risk.
Core features and use cases: Syntax validation, directive checks, stage-aware analysis, and exportable reports. Use cases include pre-commit checks, PR validations, and CI integrations to reduce build failures and improve container hygiene.