{
  "ResourceSpecificationVersion": "1.0.0",
  "ResourceType": {
    "AWS::ECS::Cluster": {
      "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ecs-cluster.html",
      "Properties": {
        "ClusterName": {
          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ecs-cluster.html#cfn-ecs-cluster-clustername",
          "PrimitiveType": "String",
          "Required": false,
          "UpdateType": "Immutable"
        }
      }
    }
  }
}