Amazon Elastic Kubernetes Service
API Reference (API Version 2017-11-01)

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Updates an Amazon EKS cluster to the specified Kubernetes version. Your cluster continues to function during the update. The response output includes an update ID that you can use to track the status of your cluster update with the DescribeUpdate API operation.

Cluster updates are asynchronous, and they should finish within a few minutes. During an update, the cluster status moves to UPDATING (this status transition is eventually consistent). When the update is complete (either Failed or Successful), the cluster status moves to Active.

Request Syntax

POST /clusters/name/updates HTTP/1.1 Content-type: application/json { "clientRequestToken": "string", "version": "string" }

URI Request Parameters

The request requires the following URI parameters.


The name of the Amazon EKS cluster to update.

Request Body

The request accepts the following data in JSON format.


Unique, case-sensitive identifier that you provide to ensure the idempotency of the request.

Type: String

Required: No


The desired Kubernetes version following a successful update.

Type: String

Required: Yes

Response Syntax

HTTP/1.1 200 Content-type: application/json { "update": { "createdAt": number, "errors": [ { "errorCode": "string", "errorMessage": "string", "resourceIds": [ "string" ] } ], "id": "string", "params": [ { "type": "string", "value": "string" } ], "status": "string", "type": "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.


The full description of the specified update

Type: Update object


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


These errors are usually caused by a client action. Actions can include 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


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

HTTP Status Code: 400


The request is invalid given the state of the cluster. Check the state of the cluster and the associated operations.

HTTP Status Code: 400


The specified resource is in use.

HTTP Status Code: 409


The specified resource could not be found. You can view your available clusters with ListClusters. Amazon EKS clusters are Region-specific.

HTTP Status Code: 404


These errors are usually caused by a server-side issue.

HTTP Status Code: 500


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

You need to learn how to sign HTTP requests only if you intend to manually create them. 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 need to learn how to sign requests yourself.


The following example updates the devel cluster to Kubernetes version 1.11.

Sample Request

POST /clusters/devel/updates HTTP/1.1 Host: Accept-Encoding: identity User-Agent: aws-cli/1.16.56 Python/3.7.0 Darwin/17.7.0 botocore/1.12.46 X-Amz-Date: 20181129T172834Z Authorization: AUTHPARAMS { "version": "1.11", "clientRequestToken": "b07dab93-51bc-4094-8372-96f3ccf888ff" }

Sample Response

HTTP/1.1 200 OK Date: Thu, 29 Nov 2018 17:28:35 GMT Content-Type: application/json Content-Length: 228 x-amzn-RequestId: 33000f0c-f3fc-11e8-9ddb-9bc150e1f1e4 x-amz-apigw-id: RIo2bEs8vHcFXoA= X-Amzn-Trace-Id: Root=1-5c0021c2-e5132580188eafa8600f2fb0;Sampled=1 Connection: keep-alive { "update": { "errors": [], "params": [{ "value": "1.11", "type": "Version" }, { "value": "eks.1", "type": "PlatformVersion" }], "status": "InProgress", "id": "9f771284-9e30-4886-b5b1-3789b6bea4dc", "createdAt": 1543512515.848, "type": "VersionUpdate" } }

See Also

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