Rebuild bare metal GPU cluster server

Rebuild a single server in a bare metal GPU cluster with a chosen image, user data, and SSH key. Any parameter that is omitted falls back to the cluster’s current settings.

The server is marked with pending changes (has_pending_changes=true) until the cluster settings are reapplied via POST /v3/gpu/baremetal/{project_id}/{region_id}/clusters/{cluster_id}/apply_settings.

POST /cloud/v4/gpu/baremetal/{project_id}/{region_id}/clusters/{cluster_id}/servers/{server_id}/rebuild

Rebuild bare metal GPU cluster server

cURL

curl --request POST \
  --url https://api.gcore.com/cloud/v4/gpu/baremetal/{project_id}/{region_id}/clusters/{cluster_id}/servers/{server_id}/rebuild \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "image_id": "ded40aad-505c-463b-aa59-8f5f455d1b6f",
  "ssh_key_name": "my-ssh-key",
  "user_data": "eyJ0ZXN0IjogImRhdGEifQ=="
}
'

import requests

url = "https://api.gcore.com/cloud/v4/gpu/baremetal/{project_id}/{region_id}/clusters/{cluster_id}/servers/{server_id}/rebuild"

payload = {
    "image_id": "ded40aad-505c-463b-aa59-8f5f455d1b6f",
    "ssh_key_name": "my-ssh-key",
    "user_data": "eyJ0ZXN0IjogImRhdGEifQ=="
}
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    image_id: 'ded40aad-505c-463b-aa59-8f5f455d1b6f',
    ssh_key_name: 'my-ssh-key',
    user_data: 'eyJ0ZXN0IjogImRhdGEifQ=='
  })
};

fetch('https://api.gcore.com/cloud/v4/gpu/baremetal/{project_id}/{region_id}/clusters/{cluster_id}/servers/{server_id}/rebuild', 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://api.gcore.com/cloud/v4/gpu/baremetal/{project_id}/{region_id}/clusters/{cluster_id}/servers/{server_id}/rebuild",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'image_id' => 'ded40aad-505c-463b-aa59-8f5f455d1b6f',
    'ssh_key_name' => 'my-ssh-key',
    'user_data' => 'eyJ0ZXN0IjogImRhdGEifQ=='
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-key>",
    "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://api.gcore.com/cloud/v4/gpu/baremetal/{project_id}/{region_id}/clusters/{cluster_id}/servers/{server_id}/rebuild"

	payload := strings.NewReader("{\n  \"image_id\": \"ded40aad-505c-463b-aa59-8f5f455d1b6f\",\n  \"ssh_key_name\": \"my-ssh-key\",\n  \"user_data\": \"eyJ0ZXN0IjogImRhdGEifQ==\"\n}")

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

	req.Header.Add("Authorization", "<api-key>")
	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.post("https://api.gcore.com/cloud/v4/gpu/baremetal/{project_id}/{region_id}/clusters/{cluster_id}/servers/{server_id}/rebuild")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"image_id\": \"ded40aad-505c-463b-aa59-8f5f455d1b6f\",\n  \"ssh_key_name\": \"my-ssh-key\",\n  \"user_data\": \"eyJ0ZXN0IjogImRhdGEifQ==\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.gcore.com/cloud/v4/gpu/baremetal/{project_id}/{region_id}/clusters/{cluster_id}/servers/{server_id}/rebuild")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"image_id\": \"ded40aad-505c-463b-aa59-8f5f455d1b6f\",\n  \"ssh_key_name\": \"my-ssh-key\",\n  \"user_data\": \"eyJ0ZXN0IjogImRhdGEifQ==\"\n}"

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

200

{
  "tasks": [
    "d478ae29-dedc-4869-82f0-96104425f565"
  ]
}

Authorizations

Authorization · string · header · required

API key for authentication. Make sure to include the word apikey, followed by a single space and then your token. Example: apikey 1234$abcdef

Path Parameters

project_id · integer · required

Project ID

Example:

1

region_id · integer · required

Region ID

Example:

7

cluster_id · string<uuid4> · required

Cluster unique identifier

Example:

"1aaaab48-10d0-46d9-80cc-85209284ceb4"

server_id · string<uuid4> · required

Server unique identifier

Example:

"f1c1eeb6-1834-48c9-a7b0-daafce64872b"

Body

application/json

image_id · string<uuid4>

New or existing image to rebuild the node with. Omit to keep the cluster's current image.

Example:

"ded40aad-505c-463b-aa59-8f5f455d1b6f"

ssh_key_name · string

New or existing SSH keypair name. Omit to keep the cluster's current SSH key.

Minimum string length: 1

Example:

"my-ssh-key"

user_data · string

New or existing user data (Base64-encoded). Omit to keep the cluster's current user data.

Example:

"eyJ0ZXN0IjogImRhdGEifQ=="

Response

200 - application/json

OK

tasks · string[] · required

List of task IDs representing asynchronous operations. Use these IDs to monitor operation progress:

• GET /v1/tasks/{task_id} - Check individual task status and details Poll task status until completion (FINISHED/ERROR) before proceeding with dependent operations.

Example:

["d478ae29-dedc-4869-82f0-96104425f565"]