app.dockerfile

FROM php:7.2-fpm

RUN export CFLAGS="$PHP_CFLAGS" CPPFLAGS="$PHP_CPPFLAGS" LDFLAGS="$PHP_LDFLAGS"

RUN apt-get update && apt-get install -y --no-install-recommends \
    libmcrypt-dev mysql-client libmagickwand-dev git zip \
    ghostscript imagemagick libmagickwand-dev \
    && rm -rf /var/lib/apt/lists/*

RUN pecl install imagick mcrypt-1.0.1 \
    && docker-php-ext-enable imagick mcrypt \
    && docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
    && docker-php-ext-install pdo_mysql zip gd

COPY php.ini /usr/local/etc/php/
COPY --from=composer:latest /usr/bin/composer /usr/bin/composer

RUN chown www-data:www-data /var/www

docker-compose.yml

version: '2'
services:

  # The Application
  app:
    build:
      context: ./
      dockerfile: app.dockerfile
    working_dir: /var/www
    volumes:
      - ./:/var/www
    environment:
      DB_PORT: 3306
      DB_HOST: database

  # The Web Server
  web:
    build:
      context: ./
      dockerfile: web.dockerfile
    working_dir: /var/www
    volumes_from:
      - app
    ports:
      - 80:80

  # The Database
  database:
    build:
      context: ./
      dockerfile: mysql.dockerfile
    volumes:
      - dbdata:/var/lib/mysql
    environment:
      MYSQL_DATABASE: database
      MYSQL_USER: user
      MYSQL_PASSWORD: secret
      MYSQL_ROOT_PASSWORD: secret
    ports:
        - 3306:3306

volumes:
  dbdata:

mysql.cnf

[mysqld]
max_connections=1024

mysql.dockerfile

FROM mysql:5.6

ADD mysql.cnf /etc/mysql/conf.d/mysql.cnf

php.ini

memory_limit=1G

vhost.conf

server {
    listen 80;
    index index.php index.html;
    root /var/www/public;
    client_max_body_size 20M;

    location / {
        try_files $uri /index.php?$args;
    }

    location ~ \.php$ {
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass app:9000;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param PATH_INFO $fastcgi_path_info;
    }
}

web.dockerfile

FROM nginx:1.10

ADD vhost.conf /etc/nginx/conf.d/default.conf

composer or artisan commands can be executed through the app container
Fa. docker-compose exec app php artisan migrate:refresh --seed