public String getDefaultInstanceProfileArn() {
        return this.defaultInstanceProfileArn;
    }
<p>
The ARN of an IAM profile that is the default profile for all of the stack's EC2 instances. For more information
about IAM ARNs, see <a href="https://docs.aws.amazon.com/IAM/latest/UserGuide/Using_Identifiers.html">Using
Identifiers</a>.
</p>

@return The ARN of an IAM profile that is the default profile for all of the stack's EC2 instances. For more
        information about IAM ARNs, see <a
        href="https://docs.aws.amazon.com/IAM/latest/UserGuide/Using_Identifiers.html">Using Identifiers</a>.
aws-java-sdk-opsworks/src/main/java/com/amazonaws/services/opsworks/model/UpdateStackRequest.java