How to run mutiple container with docker?

Question

I want to run laravel at docker, so I create a docker-compose.yml like following:

version: '3'
services:
  web:
    image: my-laravel-image
    ports:
        - 3021:8000
    volumes:
        - ./laravel-app:/app

my-laravel-image is create by:

FROM php:7
RUN apt-get update -y && apt-get install -y libmcrypt-dev openssl
RUN docker-php-ext-install pdo mcrypt mbstring
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
WORKDIR /app
COPY . /app

CMD php artisan serve --host=0.0.0.0 --port=8000
EXPOSE 8000

When I run docker-compose up --force-recreate -d then access 127.0.0.1:3021 at browser, it works successfully.

Now I want to use php and composer offical image to build two container and connect each other, how to do it?

Following is what I tried:

version: '3'

services:
    php:
        image: php:7-fpm
        ports: 
          - "3021:8000"
        volumes:
            - ./laravel-app:/app
    composer:
        image: composer:latest
        volumes:
            - ./laravel-app:/app
        working_dir: /app
        command: ["install","php artisan serve --host=0.0.0.0"]
        depends_on:
            - php

When I run docker-compose up --force-recreate -d and docker-compose log, it shows following error:

Invalid argument php artisan serve --host=0.0.0.0. Use "composer require php artisan serve --host=0.0.0.0" instead to add packages to your composer.json.

How to fix it?

Answer 1

I think the problem is this, you are trying to execute this command:

$ install php artisan serve --host=0.0.0.0

When they should be two command like this:

$ composer install & php artisan serve --host=0.0.0.0

regards.