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 automatically have AWS security
credentials available. You can use IAM roles with Amazon EC2 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 Amazon EC2
Auto Scaling User Guide.
Returns a reference to this object so that method calls can be chained
together.
Constraints:
Length: 1 - 1600
Pattern: [ -\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]