Configuring Shrine for mass-distribution with S3 and Cloudfront

shrine.rb

require "shrine/storage/s3"

base_s3_options = {
  access_key_id: Rails.application.credentials.dig(:aws, :access_key_id),
  secret_access_key: Rails.application.credentials.dig(:aws, :secret_access_key),
  region: 'us-east-1',
  bucket: ENV['SHRINE_S3_BUCKET'],
}

cache_s3_options = base_s3_options.merge(
  prefix: "cache"
)

store_s3_options = base_s3_options.merge(
  public: true,
  prefix: "store",
  upload_options: {
    cache_control: "public, max-age=1209600"
  }
)

Shrine.storages = {
  cache: Shrine::Storage::S3.new(**cache_s3_options),
  store: Shrine::Storage::S3.new(**store_s3_options),
}

Shrine.plugin :default_url_options, store: { host: ENV['SHRINE_CLOUDFRONT_BASE_URL'] }