public void setCustomIamInstanceProfile(String customIamInstanceProfile) {
        this.customIamInstanceProfile = customIamInstanceProfile;
    }
<p>
The instance profile associated with the underlying Amazon EC2 instance of an RDS Custom DB instance. The
instance profile must meet the following requirements:
</p>
<ul>
<li>
<p>
The profile must exist in your account.
</p>
</li>
<li>
<p>
The profile must have an IAM role that Amazon EC2 has permissions to assume.
</p>
</li>
<li>
<p>
The instance profile name and the associated IAM role name must start with the prefix <code>AWSRDSCustom</code>.
</p>
</li>
</ul>
<p>
For the list of permissions required for the IAM role, see <a
href="https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/custom-setup-orcl.html#custom-setup-orcl.iam-vpc">
Configure IAM and your VPC</a> in the <i>Amazon RDS User Guide</i>.
</p>
<p>
This setting is required for RDS Custom DB instances.
</p>

@param customIamInstanceProfile
       The instance profile associated with the underlying Amazon EC2 instance of an RDS Custom DB instance. The
       instance profile must meet the following requirements:</p>
       <ul>
       <li>
       <p>
       The profile must exist in your account.
       </p>
       </li>
       <li>
       <p>
       The profile must have an IAM role that Amazon EC2 has permissions to assume.
       </p>
       </li>
       <li>
       <p>
       The instance profile name and the associated IAM role name must start with the prefix
       <code>AWSRDSCustom</code>.
       </p>
       </li>
       </ul>
       <p>
       For the list of permissions required for the IAM role, see <a href=
       "https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/custom-setup-orcl.html#custom-setup-orcl.iam-vpc">
       Configure IAM and your VPC</a> in the <i>Amazon RDS User Guide</i>.
       </p>
       <p>
       This setting is required for RDS Custom DB instances.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/CreateDBInstanceReadReplicaRequest.java