What is this?

Simple example how to run composer install command each time when you start docker containers.

Requirements

Just run docker-compose up command to start container. You should see

-------------------------- Running composer install --------------------------

And after that you should also see

php-fpm | ------------------------
php-fpm | 
php-fpm | Importing custom functions also work
php-fpm | 
php-fpm | ------------------------

each time you start containers again.