Isolating Rails blobs in subfolders

This example application is configured to store uploaded ActiveStorage files into subfolders based on a deployment environment variable, such as $HEROKU_APP_NAME.

I've deployed two demonstration apps that show the internal key to demonstrate that the images are stored in different subfolders:

• https://subfolder-demo-1111.herokuapp.com/
• https://subfolder-demo-2222.herokuapp.com/

Read me on the blog post.

Files

The configuration files for blobs in subfolders are:

• config/initializers/active_storage.rb
• spec/lib/activestorage_blob_spec.rb