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Amazon EC2 Container Service
API Reference (API Version 2014-11-13)

AWS Documentation » Amazon Elastic Container Service » API Reference » Actions » CreateCluster

CreateCluster

Creates a new Amazon ECS cluster. By default, your account receives a default cluster when you launch your first container instance. However, you can create your own cluster with a unique name with the CreateCluster action.

Note

When you call the CreateCluster API operation, Amazon ECS attempts to create the service-linked role for your account so that required resources in other AWS services can be managed on your behalf. However, if the IAM user that makes the call does not have permissions to create the service-linked role, it is not created. For more information, see Using Service-Linked Roles for Amazon ECS in the Amazon Elastic Container Service Developer Guide.

Request Syntax

{
   "clusterName": "string",
   "tags": [ 
      { 
         "key": "string",
         "value": "string"
      }
   ]
}

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.

clusterName

The name of your cluster. If you do not specify a name for your cluster, you create a cluster named default. Up to 255 letters (uppercase and lowercase), numbers, hyphens, and underscores are allowed.

Type: String

Required: No

tags

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. Tag keys can have a maximum character length of 128 characters, and tag values can have a maximum length of 256 characters.

Type: Array of Tag objects

Array Members: Minimum number of 0 items. Maximum number of 50 items.

Required: No

Response Syntax

{
   "cluster": { 
      "activeServicesCount": number,
      "clusterArn": "string",
      "clusterName": "string",
      "pendingTasksCount": number,
      "registeredContainerInstancesCount": number,
      "runningTasksCount": number,
      "statistics": [ 
         { 
            "name": "string",
            "value": "string"
         }
      ],
      "status": "string"
   }
}

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

cluster

The full description of your new cluster.

Type: Cluster object

Errors

For information about the errors that are common to all actions, see Common Errors.

ClientException

These errors are usually caused by a client action, such as using an action or resource on behalf of a user that doesn't have permissions to use the action or resource, or specifying an identifier that is not valid.

HTTP Status Code: 400

InvalidParameterException

The specified parameter is invalid. Review the available parameters for the API request.

HTTP Status Code: 400

ServerException

These errors are usually caused by a server issue.

HTTP Status Code: 500

Example

In the following example or examples, the Authorization header contents (AUTHPARAMS) must be replaced with an AWS Signature Version 4 signature. For more information, see Signature Version 4 Signing Process in the AWS General Reference.

You only need to learn how to sign HTTP requests if you intend to create them manually. When you use the AWS Command Line Interface (AWS CLI) or one of the AWS SDKs to make requests to AWS, these tools automatically sign the requests for you, with the access key that you specify when you configure the tools. When you use these tools, you don't have to sign requests yourself.

Example

This example request creates a cluster called My-cluster.

Sample Request

POST / HTTP/1.1
Host: ecs.us-east-1.amazonaws.com
Accept-Encoding: identity
Content-Length: 29
X-Amz-Target: AmazonEC2ContainerServiceV20141113.CreateCluster
X-Amz-Date: 20150429T163840Z
Content-Type: application/x-amz-json-1.1
Authorization: AUTHPARAMS

{
  "clusterName": "My-cluster"
}

Sample Response

HTTP/1.1 200 OK
Server: Server
Date: Wed, 29 Apr 2015 16:38:41 GMT
Content-Type: application/x-amz-json-1.1
Content-Length: 209
Connection: keep-alive
x-amzn-RequestId: 123a4b56-7c89-01d2-3ef4-example5678f

{
  "cluster": {
    "activeServicesCount": 0,
    "clusterArn": "arn:aws:ecs:us-east-1:012345678910:cluster/My-cluster",
    "clusterName": "My-cluster",
    "pendingTasksCount": 0,
    "registeredContainerInstancesCount": 0,
    "runningTasksCount": 0,
    "status": "ACTIVE"
  }
}

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: