Help Center/ Cloud Container Engine/ API Reference/ APIs/ Cluster Management/ Modifying Cluster Specifications
Updated on 2025-04-07 GMT+08:00
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Modifying Cluster Specifications

Function

This API is used to modify the specifications of a cluster.

  • The URL for cluster management is in the format of https://Endpoint/uri, in which uri indicates the resource path, that is, the path for API access.

URI

POST /api/v3/projects/{project_id}/clusters/{cluster_id}/operation/resize

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Project ID. For details about how to obtain the value, see How to Obtain Parameters in the API URI.

cluster_id

Yes

String

Cluster ID. For details about how to obtain the value, see How to Obtain Parameters in the API URI.

Request Parameters

Table 2 Request header parameters

Parameter

Mandatory

Type

Description

Content-Type

Yes

String

Message body type (format).

X-Auth-Token

Yes

String

Requests for calling an API can be authenticated using either a token or AK/SK. If token-based authentication is used, this parameter is mandatory and must be set to a user token. For details, see Obtaining a User Token.
Table 3 Request body parameters

Parameter

Mandatory

Type

Description

flavorResize

Yes

String

The target flavor to be changed. You can only adjust the maximum number of worker nodes in a cluster. The number of master nodes is fixed and cannot be altered, and the cluster flavors cannot be downgraded. Suppose the original cluster flavor is cce.s2.medium. In that case, you can only upgrade it to cce.s2.large or higher, but you cannot downgrade it to cce.s2.small or cce.s1.medium.

  • cce.s1.small: a small-scale CCE cluster with one master node and a maximum of 50 worker nodes
  • cce.s1.medium: a medium-scale CCE cluster with one master node and a maximum of 200 worker nodes
  • cce.s2.small: a small-scale CCE cluster with three master nodes and a maximum of 50 worker nodes
  • cce.s2.medium: a medium-scale CCE cluster with three master nodes and a maximum of 200 worker nodes
  • cce.s2.large: a large-scale CCE cluster with three master nodes and a maximum of 1,000 worker nodes
  • cce.s2.xlarge: an ultra-large-scale CCE cluster with three master nodes and a maximum of 2,000 worker nodes
NOTE:

The fields in the parameters are described as follows:

  • s1: specifies a cluster with one master node. If the master node is faulty, the cluster will become unavailable, but running workloads in the cluster are not affected.
  • s2: specifies an HA cluster with three master nodes. If one of the master nodes is faulty, the cluster is still available.
  • small: specifies that a cluster can manage a maximum of 50 worker nodes.
  • medium: specifies that a cluster can manage a maximum of 200 worker nodes.
  • large: specifies that a cluster can manage a maximum of 1,000 worker nodes.
  • xlarge: specifies that a cluster can manage a maximum of 2,000 worker nodes.

extendParam

No

extendParam object

-
Table 4 extendParam

Parameter

Mandatory

Type

Description

decMasterFlavor

No

String

Specifications of the master node in the dedicated hybrid cluster

isAutoPay

No

String

Whether auto payment is enabled.

  • true: Auto payment is enabled.
  • false: Auto payment is not enabled.
NOTE:

This field is valid for yearly/monthly clusters. If not specified, auto payment is not enabled.

Response Parameters

Status code: 201

Table 5 Response body parameters

Parameter

Type

Description

jobID

String

ID of the job

orderID

String

ID of the order for modifying the specifications of a yearly/monthly billed cluster

Example Requests

  • Modifying the specifications of the yearly/monthly cluster (automatic payment) 
    POST /api/v3/projects/{project_id}/clusters/{cluster_id}/operation/resize

{
  "flavorResize" : "cce.s1.medium",
  "extendParam" : {
    "isAutoPay" : "true"
  }
}
  • Modifying the specifications of the pay-per-use cluster 
    POST /api/v3/projects/{project_id}/clusters/{cluster_id}/operation/resize

{
  "flavorResize" : "cce.s1.medium"
}

Example Responses

Status code: 201

The job for modifying the specifications of the pay-per-use cluster is delivered.

{
  "jobID" : "13b8d958-8fcf-11ed-aef3-0255ac1001bd"
}

Status Codes

Status Code

Description

201

The job for modifying the specifications of the pay-per-use cluster is delivered.

Error Codes

See Error Codes.

Parent topic: Cluster Management