AWS CloudFormation
User Guide (Version )

The AWS Documentation website is getting a new look!
Try it now and let us know what you think. Switch to the new look >>

You can return to the original look by selecting English in the language selector above.


The AWS::ECS::Cluster resource creates an Amazon Elastic Container Service (Amazon ECS) cluster.


To declare this entity in your AWS CloudFormation template, use the following syntax:


{ "Type" : "AWS::ECS::Cluster", "Properties" : { "ClusterName" : String, "Tags" : [ Tag, ... ] } }


Type: AWS::ECS::Cluster Properties: ClusterName: String Tags: - Tag



A user-generated string that you use to identify your cluster. If you don't specify a name, AWS CloudFormation generates a unique physical ID for the name.

Required: No

Type: String

Update requires: Replacement


The metadata that you apply to the cluster to help you categorize and organize them. Each tag consists of a key and an optional value, both of which you define.

The following basic restrictions apply to tags:

  • Maximum number of tags per resource - 50

  • For each resource, each tag key must be unique, and each tag key can have only one value.

  • Maximum key length - 128 Unicode characters in UTF-8

  • Maximum value length - 256 Unicode characters in UTF-8

  • If your tagging schema is used across multiple services and resources, remember that other services may have restrictions on allowed characters. Generally allowed characters are: letters, numbers, and spaces representable in UTF-8, and the following characters: + - = . _ : / @.

  • Tag keys and values are case-sensitive.

  • Do not use aws:, AWS:, or any upper or lowercase combination of such as a prefix for either keys or values as it is reserved for AWS use. You cannot edit or delete tag keys or values with this prefix. Tags with this prefix do not count against your tags per resource limit.

Required: No

Type: List of Tag

Maximum: 50

Update requires: No interruption

Return Values


When you pass the logical ID of this resource to the intrinsic Ref function, Ref returns the resource name.

In the following example, the Ref function returns the name of the MyECSCluster cluster, such as MyStack-MyECSCluster-NT5EUXTNTXXD.

{ "Ref": "MyECSCluster" }

For more information about using the Ref function, see Ref.


The Fn::GetAtt intrinsic function returns a value for a specified attribute of this type. The following are the available attributes and sample return values.

For more information about using the Fn::GetAtt intrinsic function, see Fn::GetAtt.


The Amazon Resource Name (ARN) of the Amazon ECS cluster, such as arn:aws:ecs:us-east-2:123456789012:cluster/MyECSCluster.


Creating an Amazon ECS cluster

The following sample declares an Amazon ECS cluster:


"MyCluster": { "Type": "AWS::ECS::Cluster" }


MyCluster: Type: AWS::ECS::Cluster