Paperclip Amazon S3 Setup with Heroku

Ruby on Rails, Paperclip, Amazon AWS S3 & Heroku

Had this problem before!

Solved it by putting the bucket vars in the model itself (live code):

 #app/models/image.rb
 has_attached_file :image,
                :styles => { :medium => "x300", :thumb => "x100" },
                :default_url => "**********",
                :storage => :s3,
                :bucket => '*****',
                :s3_credentials => S3_CREDENTIALS

 #config/application.rb
 config.paperclip_defaults = {
            :storage => :s3,
            :s3_host_name => 's3-eu-west-1.amazonaws.com'
 }

 #config/initializers/s3.rb
 if Rails.env == "production"
     # set credentials from ENV hash
 S3_CREDENTIALS = { :access_key_id => ENV['S3_KEY'], :secret_access_key => ENV['S3_SECRET'], :bucket => "*****"}
 else
     # get credentials from YML file
     S3_CREDENTIALS = Rails.root.join("config/s3.yml")
 end

#config/application.yml ([figaro][1] gem)
S3_KEY: ********
S3_SECRET: **********

We also have this in our production.rb:

#app/environments/production.rb
config.action_controller.asset_host = "//#{ENV['FOG_DIRECTORY']}.s3.amazonaws.com"

The ENV['FOG_DIRECTORY'] is the bucket name, and there's also one for different regions. Here's a very good resource for you (the answer with 15 upvotes... not the accepted answer)

Paperclip Amazon S3 setup with Heroku

The 'path' specifies the location on S3 where the files will be stored. Thus, if you specify an attachment as:

 has_attached_file :image, 
    :styles => { :medium => "275x275>", :thumb => "175x155>" },
    :storage => :s3, :s3_credentials => "#{RAILS_ROOT}/config/amazon_s3.yml",
    :path => "user/:attachment/:style/:id.:extension"

A sample URL will be:

http://s3.amazonaws.com/bucket/user/image/thumb/347853856.jpg

Finally, S3 is NOT free (Heroku simply states transfer / uploads are not counted in the usage based calculations). Heroku's documentation is excellent if you need further information.

Paperclip + S3 + Heroku, but something went wrong

So, it was pretty simple.

It seems that Paperclip doesn't support more recent versions of aws-sdk. So I had to change my Gemfile in order to use aws-sdk 2.0 or older.

gem 'aws-sdk', '< 2.0'

That solved the problem.

Thanks for all the help. Using the environment variables of the AWS keys in development.rb helped a lot on debugging the code.

How to setup paperclip to upload multiple files to s3

I got it working!
I changed the model to the following and it started working again! I must have edited it at some point and put the wrong name after has_attached_file.

class Asset < ActiveRecord::Base
  belongs_to :project

  has_attached_file :asset,
  styles: {
    large: '640x480#',
    medium: '300x300>',
    thumb: '100x100#'
  },
  :path => ':class/:id/:style.:extension'

end

paperclip to amazon s3 images to heroku not working

Add the bucket name property to your heroku configuration by running the following command:

heroku config:add S3_BUCKET_NAME=bucket_name_value

For more information: Heroku: Config-Vars

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