title: Paperclip on docker doesn't upload image?
body: <p>I have an issue with paperclip when using it with rails under docker development environment,
  I followed all the steps on the <a href="https://github.com/thoughtbot/paperclip" rel="nofollow noreferrer">README</a> to add an image to an existing model, everything works no errors but the image is not uploading locally, even I tried to upload to S3 directly and the same issue no errors at all and image is missing folders are empty?</p>
  
  <p>my code is clean I tried it out of docker and it works, any suggestions ?</p>
  
  <p>to mention I even tried carrierwave and it works very well but I do love to use paperclip I do find it more lightweight and powerful.</p>