title: Active Storage Permanent Image URL
body: <p>I'm creating a google product listing for a website built in Ruby on Rails. The website has multiple stores with their own front ends so they're wanting a Google Product Feed for each store. </p>
  
  <p>The issue I'm having is if I use url_for(image) then I get the URL for the image on that store. But the way active storage works it's on a temporary URL that lasts 5 minutes by default. So the links wouldn't work on the feed by the it's been processed.</p>
  
  <p>The images are hosted on an S3 bucket so I can get the service_url. But Google doesn't like having the images coming from a separate domain to the store. Is there a way to have a permanent clean url from the stores domain? </p>