curl --request PUT \
  --url https://nks.nks.europe-west4.nscale.com/api/v1/clusters/{clusterID} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "metadata": {
    "name": "production-cluster"
  },
  "spec": {
    "networkId": "61f0ad85-3001-41cb-824a-e6a047668dfe",
    "platformReleaseId": "nks-1-32-4",
    "clusterNetwork": {
      "podCidr": "10.240.0.0/12",
      "serviceCidr": "10.96.0.0/16"
    },
    "apiServer": {
      "publicIP": true,
      "allowedCidrs": [
        "203.0.113.0/24"
      ]
    }
  }
}
'

import requests

url = "https://nks.nks.europe-west4.nscale.com/api/v1/clusters/{clusterID}"

payload = {
    "metadata": { "name": "production-cluster" },
    "spec": {
        "networkId": "61f0ad85-3001-41cb-824a-e6a047668dfe",
        "platformReleaseId": "nks-1-32-4",
        "clusterNetwork": {
            "podCidr": "10.240.0.0/12",
            "serviceCidr": "10.96.0.0/16"
        },
        "apiServer": {
            "publicIP": True,
            "allowedCidrs": ["203.0.113.0/24"]
        }
    }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.put(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'PUT',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    metadata: {name: 'production-cluster'},
    spec: {
      networkId: '61f0ad85-3001-41cb-824a-e6a047668dfe',
      platformReleaseId: 'nks-1-32-4',
      clusterNetwork: {podCidr: '10.240.0.0/12', serviceCidr: '10.96.0.0/16'},
      apiServer: {publicIP: true, allowedCidrs: ['203.0.113.0/24']}
    }
  })
};

fetch('https://nks.nks.europe-west4.nscale.com/api/v1/clusters/{clusterID}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://nks.nks.europe-west4.nscale.com/api/v1/clusters/{clusterID}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'metadata' => [
        'name' => 'production-cluster'
    ],
    'spec' => [
        'networkId' => '61f0ad85-3001-41cb-824a-e6a047668dfe',
        'platformReleaseId' => 'nks-1-32-4',
        'clusterNetwork' => [
                'podCidr' => '10.240.0.0/12',
                'serviceCidr' => '10.96.0.0/16'
        ],
        'apiServer' => [
                'publicIP' => true,
                'allowedCidrs' => [
                                '203.0.113.0/24'
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://nks.nks.europe-west4.nscale.com/api/v1/clusters/{clusterID}"

	payload := strings.NewReader("{\n  \"metadata\": {\n    \"name\": \"production-cluster\"\n  },\n  \"spec\": {\n    \"networkId\": \"61f0ad85-3001-41cb-824a-e6a047668dfe\",\n    \"platformReleaseId\": \"nks-1-32-4\",\n    \"clusterNetwork\": {\n      \"podCidr\": \"10.240.0.0/12\",\n      \"serviceCidr\": \"10.96.0.0/16\"\n    },\n    \"apiServer\": {\n      \"publicIP\": true,\n      \"allowedCidrs\": [\n        \"203.0.113.0/24\"\n      ]\n    }\n  }\n}")

	req, _ := http.NewRequest("PUT", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.put("https://nks.nks.europe-west4.nscale.com/api/v1/clusters/{clusterID}")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"metadata\": {\n    \"name\": \"production-cluster\"\n  },\n  \"spec\": {\n    \"networkId\": \"61f0ad85-3001-41cb-824a-e6a047668dfe\",\n    \"platformReleaseId\": \"nks-1-32-4\",\n    \"clusterNetwork\": {\n      \"podCidr\": \"10.240.0.0/12\",\n      \"serviceCidr\": \"10.96.0.0/16\"\n    },\n    \"apiServer\": {\n      \"publicIP\": true,\n      \"allowedCidrs\": [\n        \"203.0.113.0/24\"\n      ]\n    }\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://nks.nks.europe-west4.nscale.com/api/v1/clusters/{clusterID}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Put.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"metadata\": {\n    \"name\": \"production-cluster\"\n  },\n  \"spec\": {\n    \"networkId\": \"61f0ad85-3001-41cb-824a-e6a047668dfe\",\n    \"platformReleaseId\": \"nks-1-32-4\",\n    \"clusterNetwork\": {\n      \"podCidr\": \"10.240.0.0/12\",\n      \"serviceCidr\": \"10.96.0.0/16\"\n    },\n    \"apiServer\": {\n      \"publicIP\": true,\n      \"allowedCidrs\": [\n        \"203.0.113.0/24\"\n      ]\n    }\n  }\n}"

response = http.request(request)
puts response.read_body

{
  "metadata": {
    "id": "1e44f19a-21a9-43cc-a460-5d6f21247f65",
    "generation": 4,
    "name": "production-cluster",
    "organizationId": "9a8c6370-4065-4d4a-9da0-7678df40cd9d",
    "projectId": "e36c058a-8eba-4f5b-91f4-f6ffb983795c",
    "creationTime": "2026-05-14T10:00:00.000Z",
    "provisioningStatus": "provisioning",
    "healthStatus": "unknown",
    "tags": [
      {
        "name": "environment",
        "value": "production"
      }
    ]
  },
  "spec": {
    "networkId": "61f0ad85-3001-41cb-824a-e6a047668dfe",
    "platformReleaseId": "nks-1-32-4",
    "apiServer": {
      "publicIP": false
    },
    "addons": {
      "hardware": {
        "enabled": true
      },
      "nodeHealth": {
        "enabled": true
      }
    }
  },
  "status": {
    "regionId": "uk-lon-1",
    "observedGeneration": 3,
    "kubernetesVersion": {
      "target": "v1.32.3",
      "observed": "v1.32.3"
    },
    "apiServer": {
      "certificateAuthorityData": "dGVzdC1jYQ==",
      "endpoints": {
        "private": {
          "address": "api.production-cluster.private.example.com",
          "port": 6443
        }
      }
    },
    "controlPlane": {
      "readyReplicas": 3,
      "desiredReplicas": 3
    },
    "nodePools": {
      "count": 1,
      "totalDesiredReplicas": 3,
      "totalCurrentReplicas": 3,
      "totalReadyReplicas": 3
    },
    "addons": {
      "core": {
        "status": "ready",
        "components": [
          {
            "name": "cilium",
            "version": "1.16.6",
            "status": "ready"
          },
          {
            "name": "metrics-server",
            "version": "0.7.2",
            "status": "ready"
          }
        ]
      },
      "hardware": {
        "status": "ready",
        "components": [
          {
            "name": "nvidia-gpu-operator",
            "version": "24.9.2",
            "status": "ready"
          }
        ]
      }
    },
    "release": {
      "appliedId": "nks-1-32-3",
      "deprecated": false,
      "upgradeAvailable": true,
      "eligibleTargets": [
        "nks-1-32-4"
      ]
    }
  }
}

{
  "error": "invalid_request",
  "error_description": "request body invalid",
  "trace_id": "57bc14d9bd461f0b5a72db830149b67a"
}

{
  "error": "access_denied",
  "error_description": "authentication failed",
  "trace_id": "57bc14d9bd461f0b5a72db830149b67a"
}

{
  "error": "forbidden",
  "error_description": "user credentials do not have the required privileges",
  "trace_id": "57bc14d9bd461f0b5a72db830149b67a"
}

{
  "error": "not_found",
  "error_description": "the requested resource does not exist",
  "trace_id": "57bc14d9bd461f0b5a72db830149b67a"
}

{
  "error": "conflict",
  "error_description": "a resource with the same name already exists",
  "trace_id": "57bc14d9bd461f0b5a72db830149b67a"
}

{
  "error": "request_entity_too_large",
  "error_description": "request body exceeds the maximum allowed size",
  "trace_id": "57bc14d9bd461f0b5a72db830149b67a"
}

{
  "error": "unprocessable_content",
  "error_description": "the request body was in the wrong format",
  "trace_id": "57bc14d9bd461f0b5a72db830149b67a"
}

{
  "error": "server_error",
  "error_description": "failed to token claim",
  "trace_id": "57bc14d9bd461f0b5a72db830149b67a"
}