Release: AWS SDK for Ruby 1.5.3

IAM Instance Profiles allow you to securely deliver AWS credentials directly to your Amazon EC2 instances. You can use the updated IAM API, or the AWS Management Console to create IAM Instance Profiles, then launch instances using that profile to have your AWS credentials securely distributed to the Amazon EC2 instances running your application.

The aws-sdk gem automatically consumes IAM Instance Profile credentials distributed to your EC2 instances. The AWS SDK for Ruby now checks for credentials in the following locations:

1. Statically configured credentials provided to AWS.config via :access_key_id and :secret_access_key.
2. Environment variables ('AWS_ACCESS_KEY_ID' and 'AWS_SECRET_ACCESS_KEY').
3. Environment variables ('AMAZON_ACCESS_KEY_ID' and 'AMAZON_SECRET_ACCESS_KEY').
4. IAM Instance Profile - AWS credentials securely delivered directly to your Amazon EC2 instances.

Launching an EC2 instance with an IAM Instane Profile can be done simply by passing :iam_instance_profile to AWS::EC2::InstanceCollection#create.

ec2 = AWS::EC2.new
ec2.instances.create(:image_id => 'ami-8c1fece5', :iam_instance_profile => 'profile-name')

In addition to managing profiles via the console, you can use AWS::IAM::Client to manage profiles, roles and policies.

AWS.config now accepts :credential_provider with an an object that responds to the following methods:

• #acces_key_id
• #secret_access_key
• #session_token
• #refresh

The :signer option is now deprecated.

AWS::AutoScaling::LaunchConfigurationCollection#create now accepts two new options:

• :iam_instance_profile
• :spot_price

You can also get the same two attributes from an AWS::AutoScaling::LaunchConfiguration object.

Resolved an issue with AWS::DynmoDB::BatchWrite which raised an error when retrying incomplete batch write requests that contained sets: https://github.com/amazonwebservices/aws-sdk-for-ruby/pull/51.

Resolved an issue where a no-method error was raised when trying to access #version_id on responses that do no include the version id: https://github.com/amazonwebservices/aws-sdk-for-ruby/pull/49.

Corrected an example given in documentation for using custom http handlers which did not work with 1.9: https://github.com/amazonwebservices/aws-sdk-for-ruby/pull/48.

AWS::DynamoDB::Table#batch_put was defined twice and the #batch_delete documentation was duplicated: https://github.com/amazonwebservices/aws-sdk-for-ruby/pull/44.

Flash adds a 'filename' parameter to any posted upload. 'filename' is now allowable as a condition on presigned post uploads, which allows aws-sdk to correctly generate a signature: https://github.com/amazonwebservices/aws-sdk-for-ruby/pull/43.