::fixture-ready::
$ sed -n '1,20p' config/app.env.example
APP_ENV=staging
NODE_ENV=production
RAILS_ENV=production
::exit-code::0
$ grep -RhoE 'ENVIRONMENT|NODE_ENV|APP_ENV|RAILS_ENV' config deploy | sort -u
APP_ENV
NODE_ENV
RAILS_ENV
::exit-code::0