.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

1. Detect project type: Check for symfony.lock (Symfony), artisan (Laravel), or generic PHP
2. Analyze existing files: Read .gitignore, check CI/CD config, identify test/doc directories
3. 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

1. Never exclude: composer.json, composer.lock, source code (src/, app/, config/, public/), migrations
2. Always exclude: .git, vendor/, tests, IDE files, local env files with secrets
3. 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:

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