AWS Elastic Beanstalk
Developer Guide (API Version 2010-12-01)

Composer File

Use a composer.json file in the root of your project source to use composer to install packages that your application requires.

Example composer.json

    "require": {
        "monolog/monolog": "1.0.*"

When a composer.json file is present, Elastic Beanstalk runs composer.phar install to install dependencies. You can add options to append to the command by setting the composer_options option in the aws:elasticbeanstalk:container:php:phpini namespace.