How do I install the Create Dockerignore skill?

Run npx get-skill add tomevault-io/create-dockerignore in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Create Dockerignore safe to use?

SkillMD's automated safety review verdict for this skill is PASS. Independent scanners report: SkillSpector: CAUTION, Skill Scanner: PASS. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Create Dockerignore?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Create Dockerignore free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Create Dockerignore?

tomevault-io (@tomevault-io) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Create Dockerignore by tomevault-io

Name: Create Dockerignore
Author: tomevault-io

File contents

.dockerignore Generator

Generates optimized .dockerignore files for PHP projects, reducing build context size and improving build performance.

Generated Files

.dockerignore             # Optimized exclusion rules

Generation Instructions

Detect project type: Check for symfony.lock (Symfony), artisan (Laravel), or generic PHP
Analyze existing files: Read .gitignore, check CI/CD config, identify test/doc directories
Generate .dockerignore: Universal exclusions + framework-specific + proper ! negations

Universal PHP .dockerignore

# ===========================================
# .dockerignore — PHP Project
# ===========================================

# Version Control
.git
.gitignore
.gitattributes
.gitmodules

# CI/CD
.github
.gitlab
.gitlab-ci.yml
.circleci
Jenkinsfile
bitbucket-pipelines.yml

# IDE
.idea
.vscode
*.sublime-project
*.sublime-workspace
*.swp
*.swo
*~

# Dependencies (installed in container)
vendor/
node_modules/

# Testing
tests/
test/
spec/
phpunit.xml
phpunit.xml.dist
.phpunit.result.cache
.phpunit.cache/
behat.yml
behat.yml.dist
infection.json
infection.json.dist

# Documentation
docs/
doc/
*.md
!README.md
LICENSE

# Development Files
docker-compose*.yml
docker-compose*.yaml
Dockerfile*
.docker/
Makefile
Vagrantfile

# Cache and Temporary Files
var/cache/
var/log/
storage/logs/
storage/framework/cache/
storage/framework/sessions/
storage/framework/views/
*.log
tmp/
temp/

# Local Configuration
.env
.env.local
.env.*.local
.env.test
*.local.php
docker-compose.override.yml

# Static Analysis
phpstan.neon
phpstan.neon.dist
phpstan-baseline.neon
psalm.xml
psalm.xml.dist
.php-cs-fixer.php
.php-cs-fixer.dist.php
.php-cs-fixer.cache
.phpcs-cache
phpcs.xml
phpcs.xml.dist
deptrac.yaml
rector.php
ecs.php
pint.json

# Build Artifacts
coverage/
build/
report/
reports/
clover.xml
coverage.xml

# OS Files
.DS_Store
Thumbs.db

# Package Management
composer.phar
auth.json

# Claude / AI
.claude/
CLAUDE.md

Symfony-Specific Additions

# Symfony
symfony.lock
var/
assets/
public/build/
.symfony/
.symfony.local.yaml
.phpunit/

Laravel-Specific Additions

# Laravel
storage/
bootstrap/cache/
docker-compose.sail.yml
public/hot
public/storage
public/build/
public/mix-manifest.json
_ide_helper*.php
.phpstorm.meta.php
Homestead.json
Homestead.yaml

Important Negations

# Required Files (do NOT exclude)
!composer.json
!composer.lock
!symfony.lock
!.env.dist
!.env.example

Build Context Impact

Pattern	Typical savings
`.git`	50-500 MB
`vendor/`	100-500 MB
`node_modules/`	200-800 MB
`tests/`	5-50 MB

Validation Rules

Never exclude: composer.json, composer.lock, source code (src/, app/, config/, public/), migrations
Always exclude: .git, vendor/, tests, IDE files, local env files with secrets
Framework awareness: Symfony: exclude var/, keep config/, public/, templates/; Laravel: exclude storage/, keep config/, public/, resources/

Usage

Provide:

Framework (Symfony/Laravel/generic PHP)
Monorepo structure (yes/no)
Custom exclusions (optional)

The generator will:

Create .dockerignore with universal exclusions
Add framework-specific exclusions
Add proper negation rules for required files
Optimize for minimal build context

Converted and distributed by TomeVault — claim your Tome and manage your conversions.

---name: create-dockerignoredescription: Generates optimized .dockerignore files for PHP projects. Excludes tests, docs, IDE files, and development artifacts to minimize build context.---# .dockerignore GeneratorGenerates optimized `.dockerignore` files for PHP projects, reducing build context size and improving build performance.## Generated Files```.dockerignore # Optimized exclusion rules```## Generation Instructions1. **Detect project type:** Check for `symfony.lock` (Symfony), `artisan` (Laravel), or generic PHP2. **Analyze existing files:** Read `.gitignore`, check CI/CD config, identify test/doc directories3. **Generate .dockerignore:** Universal exclusions + framework-specific + proper `!` negations## Universal PHP .dockerignore```# ===========================================# .dockerignore — PHP Project# ===========================================# Version Control.git.gitignore.gitattributes.gitmodules# CI/CD.github.gitlab.gitlab-ci.yml.circleciJenkinsfilebitbucket-pipelines.yml# IDE.idea.vscode*.sublime-project*.sublime-workspace*.swp*.swo*~# Dependencies (installed in container)vendor/node_modules/# Testingtests/test/spec/phpunit.xmlphpunit.xml.dist.phpunit.result.cache.phpunit.cache/behat.ymlbehat.yml.distinfection.jsoninfection.json.dist# Documentationdocs/doc/*.md!README.mdLICENSE# Development Filesdocker-compose*.ymldocker-compose*.yamlDockerfile*.docker/MakefileVagrantfile# Cache and Temporary Filesvar/cache/var/log/storage/logs/storage/framework/cache/storage/framework/sessions/storage/framework/views/*.logtmp/temp/# Local Configuration.env.env.local.env.*.local.env.test*.local.phpdocker-compose.override.yml# Static Analysisphpstan.neonphpstan.neon.distphpstan-baseline.neonpsalm.xmlpsalm.xml.dist.php-cs-fixer.php.php-cs-fixer.dist.php.php-cs-fixer.cache.phpcs-cachephpcs.xmlphpcs.xml.distdeptrac.yamlrector.phpecs.phppint.json# Build Artifactscoverage/build/report/reports/clover.xmlcoverage.xml# OS Files.DS_StoreThumbs.db# Package Managementcomposer.pharauth.json# Claude / AI.claude/CLAUDE.md```## Symfony-Specific Additions```# Symfonysymfony.lockvar/assets/public/build/.symfony/.symfony.local.yaml.phpunit/```## Laravel-Specific Additions```# Laravelstorage/bootstrap/cache/docker-compose.sail.ymlpublic/hotpublic/storagepublic/build/public/mix-manifest.json_ide_helper*.php.phpstorm.meta.phpHomestead.jsonHomestead.yaml```## Important Negations```# Required Files (do NOT exclude)!composer.json!composer.lock!symfony.lock!.env.dist!.env.example```## Build Context Impact| Pattern | Typical savings ||---|---|| `.git` | 50-500 MB || `vendor/` | 100-500 MB || `node_modules/` | 200-800 MB || `tests/` | 5-50 MB |## Validation Rules1. **Never exclude:** `composer.json`, `composer.lock`, source code (`src/`, `app/`, `config/`, `public/`), migrations2. **Always exclude:** `.git`, `vendor/`, tests, IDE files, local env files with secrets3. **Framework awareness:** Symfony: exclude `var/`, keep `config/`, `public/`, `templates/`; Laravel: exclude `storage/`, keep `config/`, `public/`, `resources/`## UsageProvide:- Framework (Symfony/Laravel/generic PHP)- Monorepo structure (yes/no)- Custom exclusions (optional)The generator will:1. Create `.dockerignore` with universal exclusions2. Add framework-specific exclusions3. Add proper negation rules for required files4. Optimize for minimal build context---> Converted and distributed by [TomeVault](https://tomevault.io/claim/dykyi-roman) — claim your Tome and manage your conversions.

Frequently asked questions

Create Dockerignore