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AWS::ECS::PrimaryTaskSet
Modifies which task set in a service is the primary task set. Any parameters that are
			updated on the primary task set in a service will transition to the service. This is
			used when a service uses the EXTERNAL deployment controller type. For more
			information, see Amazon ECS Deployment
				Types in the Amazon Elastic Container Service Developer
				Guide.
Syntax
To declare this entity in your Amazon CloudFormation template, use the following syntax:
JSON
{ "Type" : "AWS::ECS::PrimaryTaskSet", "Properties" : { "Cluster" :String, "Service" :String, "TaskSetId" :String} }
Properties
- Cluster
- 
                    The short name or full Amazon Resource Name (ARN) of the cluster that hosts the service that the task set exists in. Required: Yes Type: String Update requires: Replacement 
- Service
- 
                    The short name or full Amazon Resource Name (ARN) of the service that the task set exists in. Required: Yes Type: String Update requires: Replacement 
- TaskSetId
- 
                    The short name or full Amazon Resource Name (ARN) of the task set to set as the primary task set in the deployment. Required: Yes Type: String Update requires: No interruption 
Return values
Ref
When you pass the logical ID of this resource to the intrinsic Ref function, Ref returns the resource name.
For more information about using the Ref function, see Ref.