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PHP Dockerfile

Source: docker/php/Dockerfile

Dockerfile​

FROM php:8.1-fpm
WORKDIR /var/www/html
RUN apt-get update && apt-get install -y git unzip && rm -rf /var/lib/apt/lists/*
COPY --from=composer:2 /usr/bin/composer /usr/bin/composer
COPY . /var/www/html
RUN composer install --no-dev --no-interaction --optimize-autoloader
CMD ["php-fpm"]
EXPOSE 9000

What It Does​

  • Uses PHP 8.1 FPM runtime.
  • Installs Composer and production dependencies.
  • Exposes FPM on port 9000.

Required Files In Build Context​

  • composer.json
  • composer.lock (recommended)
  • PHP source code

Docker Compose Example​

version: '3.8'
services:
  app:
    build:
      context: .
      dockerfile: docker/php/Dockerfile
    container_name: php-fpm-app
    env_file:
      - .env
    volumes:
      - .:/var/www/html
    depends_on:
      - db
    restart: unless-stopped

  web:
    image: nginx:alpine
    container_name: php-nginx
    ports:
      - "8080:80"
    volumes:
      - .:/var/www/html
      - ./docker/php/nginx.conf:/etc/nginx/conf.d/default.conf:ro
    depends_on:
      - app
    restart: unless-stopped

  db:
    image: mysql:8.0
    container_name: php-db
    environment:
      - MYSQL_DATABASE=appdb
      - MYSQL_USER=app
      - MYSQL_PASSWORD=password
      - MYSQL_ROOT_PASSWORD=rootpassword
    volumes:
      - mysql_data:/var/lib/mysql
    restart: unless-stopped

volumes:
  mysql_data:

Other Files You Need​

  • .env with DB and app settings
  • docker/php/nginx.conf
  • Public entry file (for example public/index.php)

Build (Docker)​

docker build -t php-app -f docker/php/Dockerfile .

Run (Docker)​

docker run --rm -p 9000:9000 php-app

Run (Docker Compose)​

docker compose up --build -d