AWS::ECS::Service:

Properties: 
  Cluster: "String"
  DesiredCounti: "Integer"
  LoadBalancers: |
    [ 
      {
        "ContainerName" => "Name",
        "ContainerPort" => "8080",
        "LoadBalancerName" => "ELB Name"
      }  
    ] 
  Role: "\"The name or ARN of an AWS Identity and Access Management (IAM) role that allows your Amazon ECS container agent to make calls to your load balancer\""
  TaskDefinition: "\"task-def # Ref(task) The family, family and revision (family:revision), or ARN of the task definition that you want to run on the cluster.\""