How to remove port 3000 from URLs in production Rails app

Question

I'm using both _path and _url helpers in a Rails 5.2.3 app. Everything works in development. When I deploy it in production, the URLs that were set with _url helpers are printing out in the HTML as https://127.0.0.1 instead of to the actual host.

I tried adding this to config/environments/production.rb :

config.action_controller.default_url_options = { host: 'example.com' }

but that turns the URLs into https://example.com:3000 , which breaks the links. (Puma is running on port 3000, but it's behind nginx, which is serving on port 80.)

Does anyone know what might be causing that? RAILS_ENV is set to production .

Answer 1

instead of

 config.action_controller.default_url_options = { host: 'example.com' }

try this in the production.rb

Rails.application.routes.default_url_options[:host] = 'your_host.com'