AWS Access Key not working in rails app - ruby-on-rails

Question

I have a rails app setup with paperclip and aws-sdk
My aws.yml file is below:
development:
access_key_id: ENV['AWS_ACCESS_KEY_ID']
secret_access_key: ENV['AWS_SECRET_ACCESS_KEY']
production:
access_key_id: ENV['AWS_ACCESS_KEY_ID']
secret_access_key: ENV['AWS_SECRET_ACCESS_KEY']
My development.rb file is here:
config.paperclip_defaults = {
:storage => :s3,
:s3_credentials => {
:bucket => ENV['AWS_BUCKET']
}
}
I'm 100% sure my keys are correct. I've double, triple and quadruple checked the keys. I first tried an Iam user key, but that didn't work, then I tried creating a root key and that didn't work either. I'm back to using a brand new Iam user key and that user has full S3 access.
/config/initializers/algoliasearch.rb uses an environment variable just fine:
AlgoliaSearch.configuration = { application_id: 'xxxxxx', api_key: ENV['algolia_admin_api_key'] }
Still, though, when I try to upload a file in my development environment I get the InvalidAccessKey error from aws. I haven't tried it on production yet because that's using the same keys (just the bucket name is different).
Am I using the wrong keys? Or is something preventing my key from being accessed? I can't find anything telling me how to set my keys up properly and I'm completely lost. I know I got this working before and can't remember there being any other steps.

Answer 1

I figured out the solution: I had to add the s3 credentials to the production.rb and development.rb environment files:
# development.rb
config.paperclip_defaults = {
:storage => :s3,
:s3_credentials => {
:bucket => ENV['AWS_BUCKET'],
:access_key_id => ENV['HOMEIN_AWS_ACCESS_KEY_ID'],
:secret_access_key => ENV['HOMEIN_AWS_SECRET_ACCESS_KEY']
}
}
They're both the same, except for the bucket name.
I feel like there's a more elegant solution that I don't know of, though...