public void setRoleArn(String roleArn) {
        this.roleArn = roleArn;
    }
<p>
The ARN of the IAM role that's associated with the service. It allows the Amazon ECS container agent to register
container instances with an Elastic Load Balancing load balancer.
</p>

@param roleArn
       The ARN of the IAM role that's associated with the service. It allows the Amazon ECS container agent to
       register container instances with an Elastic Load Balancing load balancer.
aws-java-sdk-ecs/src/main/java/com/amazonaws/services/ecs/model/Service.java