AWS S3 Cache Control Max-Age

aws_s3_set_cache_control_max-age.rb

#!/usr/bin/env ruby
require 'rubygems'
require 'aws-sdk'

s3 = AWS::S3.new(
  :access_key_id => 'PASTE_HERE',

  #### SECRET KEY #####
  :secret_access_key => 'PASTE_SECRET_KEY_HERE')
  #### DO NOT COMMIT ####

bucket = s3.buckets['my-bucket-name']

ten_year_in_seconds = 10 * 365 * 24 * 60 * 60
ten_year_from_now = Time.now + ten_year_in_seconds

fifteen_days = 15 * 24 * 60 * 60

# to update an existing object
bucket.objects.with_prefix('production/defaults/foldername').each do |obj|
begin
  obj.copy_to(obj.key,
    :acl             => :public_read,
    :content_type    => "image/jpeg",
    :cache_control   => "max-age=#{fifteen_days}")
  rescue Exception => e
    puts "Exception #{e}"
  end
end

# see more http://docs.aws.amazon.com/AWSRubySDK/latest/AWS/S3/S3Object.html
# reference: http://www.thehorrors.org.uk/snippets/aws-ruby-s3-set-content-expires-data/
# forked from: https://gist.github.com/rahul100885/d788a041e2c36fd40f24