Release: AWS SDK for Ruby 1.2.0

We have added support for Elastic Load Balancing. Here is an example of using the aws-sdk gem to create a load balancer.

# create a new load balancer
elb = AWS::ELB.new
load_balancer = elb.load_balancers.create('my-load-balancer',
  :availability_zones => %w(us-east-1a us-east-1b),
  :listeners => [{
    :port => 80,
    :protocol => :http,
    :instance_port => 80,
    :instance_protocol => :http,
  }])
            

AWS::ELB also integrates with AWS::EC2 and AWS::IAM to simplify configuring your load balancers.

Customers now have the option to encrypt data stored "at rest" within Amazon S3. Amazon S3 Server Side Encryption provides customers with the ability to easily encrypt data -- securing their data in the cloud -- without the burden of building, managing, and securing a key management infrastructure.

# write an object to S3 and have it stored encrypted
obj = bucket.objects['key']
obj.write("Hello World!', :server_side_encryption => :aes256)
obj.server_side_encryption #=> :aes256

# enable server side encryption for all S3 objects
AWS.config(:s3_server_side_encryption => :aes256)
            

For more information on encrypting your data using Amazon S3 Server Side Encryption, please see the Amazon S3 Developer Guide.

An interface has been added that makes it possible to page items in SimpleDB with a very basic interface.

popular_items = domain.items.order(:avg_rating, :desc)
page = popular_items.page(:per_page => 25)
page.is_a?(Array) #=> true
page.each {|item| ... }
page.last_page? #=> false

# use the item collection to get the next page
page2 = popular_items.page(:per_page => 25, :next_token => page.next_token)

# or use the page of results to get the next page
page2 = page.next_page
            

AWS::Record::Base now supports updating attributes without updating the record in SimpleDB via #attributes=.

product = Product.find(123456)
product.attributes = { :sizes => %w(large xlarge), :price => 100 }
product.changed? #=> true
product.save!
product.changed? #=> false
            

You can now define custom validation methods for AWS::Record. Call validate with one or more method names. validate also accepts a hash of options (e.g. :if, :unless and :on to affect when the validation methods are called.

class Book < AWS::Record::Base
  string_attr :title          
  string_attr :author

  validate :validate_author_is_real, :if => :author_changed?

  def validate_author_is_real
    errors.add(:author, 'must be a real author') if author =~ /john doe/i
  end

end
            

When logging service requests, you can now specify the maximum length for each string in the request. Strings now only truncate after the first 1k characters by default. You can change this via AWS.config:

AWS.config(:logger_truncate_strings_at => 250)

AWS::Record::RecordNotFound now correctly inherits from StandardError instead of from Exception. This makes it easier to catch and to handle.