dockerfile-validator

Validate Dockerfiles with syntax checks, security scans, and best-practices analysis.

290|32|Updated Dec 5, 2025
One-click install
npx skills add https://github.com/akin-ozer/cc-devops-skills --skill dockerfile-validator
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: dockerfile-validator
Source: https://github.com/akin-ozer/cc-devops-skills/tree/main/devops-skills-plugin/skills/dockerfile-validator
Command: npx skills add https://github.com/akin-ozer/cc-devops-skills --skill dockerfile-validator

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires hadolint-bin, checkov, and includes scripts (resource) components.

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

Frequently Asked Questions about dockerfile-validator

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I run end-to-end Dockerfile validation for syntax and security?

Dockerfile validation executes syntax checks, security scans, and best-practices analysis. You run a single command targeting your Dockerfile, which triggers Hadolint and Checkov to surface build issues and security risks.

Do I need to pre-install Hadolint and Checkov to scan a Dockerfile?

No preconfigured setup is required to scan a Dockerfile. The validator auto-installs Hadolint and Checkov in temporary environments if the tools are missing, then performs cleanup after execution.

Can I integrate Dockerfile linting and security scanning into a CI/CD pipeline?

Dockerfile linting and security scanning integrate directly into CI/CD pipelines. Running the validation script ensures Dockerfiles meet syntax, security, and optimization standards before merge or deployment.

What is the best way to validate multiple Dockerfiles at once?

To validate multiple Dockerfiles, you can repeat the validation command or run it in a loop. This applies the same syntax, security, and best-practices analysis across batches of files.

What does Hadolint check compared to Checkov during Dockerfile analysis?

During Dockerfile analysis, Hadolint checks for syntax errors and best-practice violations, while Checkov performs security scans. Together they provide complete validation coverage for your container builds.