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.