public Integer getContainerPort() {
        return this.containerPort;
    }
<p>
The port on the container to associate with the load balancer. This port must correspond to a
<code>containerPort</code> in the task definition the tasks in the service are using. For tasks that use the EC2
launch type, the container instance they're launched on must allow ingress traffic on the <code>hostPort</code>
of the port mapping.
</p>

@return The port on the container to associate with the load balancer. This port must correspond to a
        <code>containerPort</code> in the task definition the tasks in the service are using. For tasks that use
        the EC2 launch type, the container instance they're launched on must allow ingress traffic on the
        <code>hostPort</code> of the port mapping.
aws-java-sdk-ecs/src/main/java/com/amazonaws/services/ecs/model/LoadBalancer.java