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

DescribeNodegroup

Returns descriptive information about an Amazon EKS node group.

Request Syntax

GET /clusters/name/node-groups/nodegroupName HTTP/1.1

URI Request Parameters

The request requires the following URI parameters.

name

The name of the Amazon EKS cluster associated with the node group.

nodegroupName

The name of the node group to describe.

Request Body

The request does not have a request body.

Response Syntax

HTTP/1.1 200 Content-type: application/json { "nodegroup": { "amiType": "string", "clusterName": "string", "createdAt": number, "diskSize": number, "health": { "issues": [ { "code": "string", "message": "string", "resourceIds": [ "string" ] } ] }, "instanceTypes": [ "string" ], "labels": { "string" : "string" }, "modifiedAt": number, "nodegroupArn": "string", "nodegroupName": "string", "nodeRole": "string", "releaseVersion": "string", "remoteAccess": { "ec2SshKey": "string", "sourceSecurityGroups": [ "string" ] }, "resources": { "autoScalingGroups": [ { "name": "string" } ], "remoteAccessSecurityGroup": "string" }, "scalingConfig": { "desiredSize": number, "maxSize": number, "minSize": number }, "status": "string", "subnets": [ "string" ], "tags": { "string" : "string" }, "version": "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.

nodegroup

The full description of your node group.

Type: Nodegroup 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. 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

InvalidParameterException

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

HTTP Status Code: 400

ResourceNotFoundException

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

HTTP Status Code: 404

ServerException

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

HTTP Status Code: 500

ServiceUnavailableException

The service is unavailable. Back off and retry the operation.

HTTP Status Code: 503

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 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.

Example

This example describes a managed node group called standard in the prod cluster.

Sample Request

GET /clusters/prod/node-groups/standard HTTP/1.1 Host: eks.us-west-2.amazonaws.com Accept-Encoding: identity User-Agent: aws-cli/1.16.275 Python/3.7.4 Darwin/18.7.0 botocore/1.13.11 X-Amz-Date: 20191111T183235Z Authorization: AUTHPARAMS

Sample Response

HTTP/1.1 200 OK Date: Mon, 11 Nov 2019 18:32:35 GMT Content-Type: application/json Content-Length: 1119 x-amzn-RequestId: ad4d4d65-182b-4318-bb77-3fb05c68aea4 x-amz-apigw-id: DAdikHT3vHcFz3w= X-Amzn-Trace-Id: Root=1-5dc9a943-24db79360a4426885b107845 Connection: keep-alive { "nodegroup": { "nodegroupName": "standard", "nodegroupArn": "arn:aws:eks:us-west-2:012345678910:nodegroup/prod/standard/06b72ddc-6fdd-e940-5fc4-4554a9fb1827", "clusterName": "prod", "version": "1.14", "releaseVersion": "1.14.7-20190927", "createdAt": 1573496875.151, "modifiedAt": 1573496979.583, "status": "ACTIVE", "scalingConfig": { "minSize": 1, "maxSize": 3, "desiredSize": 2 }, "instanceTypes": [ "t3.medium" ], "subnets": [ "subnet-04751110b066869aa", "subnet-00d64f80bf7da767c", "subnet-0c1843cbc9803368c" ], "remoteAccess": { "ec2SshKey": "id_rsa", "sourceSecurityGroups": null }, "amiType": "AL2_x86_64", "nodeRole": "arn:aws:iam::012345678910:role/managed-NodeInstanceRole-1V94UAUPQY7GS", "labels": {}, "resources": { "autoScalingGroups": [ { "name": "eks-06b72ddc-6fdd-e940-5fc4-4554a9fb1827" } ], "remoteAccessSecurityGroup": "sg-0f41cbf6724bc256c" }, "diskSize": 20, "health": { "issues": [] }, "tags": {} } }

See Also

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