Docker para Desenvolvedores PHP

Multi-stage Builds

FROM composer:2 AS vendor
WORKDIR /app
COPY composer.* ./
RUN composer install --no-dev --prefer-dist

FROM php:8.3-fpm-alpine
WORKDIR /var/www/html
COPY --from=vendor /app/vendor ./vendor
COPY . .
CMD ["php-fpm"]

Compose para Localhost

services:
  php:
    build: .
    volumes:
      - ./:/var/www/html
  nginx:
    image: nginx:1.25
    volumes:
      - ./deploy/nginx.conf:/etc/nginx/conf.d/default.conf
    depends_on:
      - php

Com isso definimos ambientes iguais entre dev e produção.