How to run Rails applications in development mode

You are able to force your application to use the development environment when running on anynines. You can achieve this by setting the RAILS_ENV environment variable for your application:

cf set-env <application name> RAILS_ENV development

This can be very handy when debugging application or deployment errors.

When you are finished with debugging your application you can reset the environment to production by deleting the RAILS_ENV variable again:

cf unset-env <application name> RAILS_ENV