How does this skill reduce PHP Docker image size?

It identifies common sources of bloat such as cached package manager files, development dependencies in Composer, and unnecessary build-time libraries that remain in the final image.

Can it help with Alpine Linux migrations?

Yes, it provides specific comparisons and code patterns for moving from heavy Debian-based images to more efficient Alpine-based versions while maintaining compatibility.

Does it support multi-stage builds?

Absolutely. It offers best-practice templates for separating build environments from production runtimes to ensure only necessary binaries are shipped.

Why is a .dockerignore file important for image size?

Without a proper .dockerignore, large directories like .git, local logs, or node_modules can be accidentally copied into the image layer, significantly increasing its size and build time.

Docker Image Size Analyzer

Name: Docker Image Size Analyzer
Author: dykyi-roman

bydykyi-roman

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Deployment & DevOps

Analyzes and optimizes Docker image sizes for PHP projects by identifying bloat and recommending efficient layering strategies.

This skill provides Claude with the specialized knowledge to audit Dockerfiles and container configurations specifically for PHP environments. It helps developers drastically reduce their image footprint by detecting uncleaned build dependencies, unnecessary Composer development packages, and inefficient base image choices. By applying industry best practices like multi-stage builds and precise layer management, it ensures faster CI/CD pipelines, lower storage costs, and improved container deployment performance.

Key Features

0145 GitHub stars

02Actionable multi-stage build patterns for PHP-FPM and CLI

03PHP-specific optimization for Composer vendor directories

04Comparison metrics between Alpine and Debian base image footprints

05Detection of missing .dockerignore files and inefficient COPY commands

06Identification of bloated Docker layers and uncleaned build dependencies

Use Cases

01Auditing legacy PHP Dockerfiles for modern containerization best practices

02Reducing CI/CD pipeline build and upload times by shrinking Docker images

03Optimizing cloud infrastructure costs by minimizing production container storage

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add dykyi-roman/awesome-claude-code analyze-docker-image-size

For use in Claude.ai and ChatGPT

Download Skill