Feel free to close, but am I missing something obvious? I have done every step in the heroku setup, and I'm still not able to get the app to use s3 for image/file uploads. Heroku config vars are set correctly. I've tried forcing with Refinery::Core.config.s3_backend = true in production.rb.

All uploads are going into ephemeral storage.

The only way the app will even attempt to write to s3 is if I uncomment the lines that set the datastore config in the images initializer, and change config.s3_datastore = Refinery::Dragonfly.s3_datastore to config.s3_datastore = true, but then I get errors that the bucket_name hasn't been set on the S3DataStore (from deep in refinery-dragonfly)

Also, the s3 guide mentions adding dragonfly config to the core initializer, but the core initializer now says that dragonfly has its own initializer, though there is no initializers/refinery/dragonfly.rb in the generated app.

I'm using Ruby 2.4.3 and rails 5.1.6.