appconfig

app/config
├── config_dev.yml
├── config_prod.yml
├── config_test.yml
├── config.yml
├── dist
├── parameters.php
├── parameters_test.yml.dist
├── parameters.yml
├── parameters.yml.dist
├── routing_dev.yml
├── routing.yml
├── security_test.yml
└── security.yml

config.yml

imports:
    - { resource: parameters.php }
    - { resource: parameters.yml }
    - { resource: security.yml }
    - { resource: "@AppBundle/Resources/config/services.yml" }