dockerfile-validator

What problem does it solve?

This Skill provides a complete Dockerfile validation workflow that automatically checks syntax, security, best practices, and optimization, reducing build issues and security risks.

Core Features & Use Cases

• Self-contained validator: Runs all four validation stages with a single command.
• Automatic tool management: Auto-installs hadolint and Checkov if not present, in temporary environments.
• CI/CD readiness: Integrates into pipelines to ensure Dockerfiles meet standards before merge or deployment.
• Use Case: When you have a Dockerfile that needs quick verification before pushing to a registry, run the validator to surface syntax errors, security concerns and optimization opportunities.

Quick Start

• Run the validator on your Dockerfile: bash scripts/dockerfile-validate.sh Dockerfile
• For multiple Dockerfiles, repeat validation or run in a loop