Support for Roles

[elpres101]

Hi

I'd like to make a feature request for this product (assuming it isn't already possible and I'm just missing something). I'm running nginx with ngx_aws_auth on an EC2 instance running under an IAM Role which has the correct permissions to access the S3 bucket I'm interested in.

Would it be possible to include an option to sign requests based on the credentials of the Role under which the EC2 instance is running under?

Thanks
Andy