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The name or the Amazon Resource Name (ARN) of the instance profile associated with the IAM role for the instance.

EC2 instances launched with an IAM role will automatically have AWS security credentials available. You can use IAM roles with Auto Scaling to automatically enable applications running on your EC2 instances to securely access other AWS resources. For more information, see Launch Auto Scaling Instances with an IAM Role ( in the Auto Scaling User Guide.