ElasticBeanstalk has a limit for stored application versions - you can have maximum 500 of it. This script can remove old application versions, base on configuration.
Basic configuration is in config.php.dist file. After composer install this file will be copied
into config.php - you can edit it.
In client section you have to pass your AWS credentials.
Script will leave last leaveLastNVersions versions for applications matched into labelPatterns
Script is based on AWS SDK for PHP Sample project