Scale Out a Node Pool via API - ENS - Alibaba Cloud - ENS

Call the ScaleClusterNodePool operation to scale out a node pool, which adds more nodes to support your workloads. The count parameter must be greater than the current number of nodes in the pool. If a node pool contains failed nodes, first call the DeleteClusterNodes operation to remove them before scaling out the pool. A scale-out operation typically completes in 5 to 10 minutes. If the operation takes longer than one hour, it has failed. Contact technical support.

Operation description

Each user is limited to 10 calls per second.
Scaling out a node pool is an asynchronous operation that typically completes in 5 to 10 minutes.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

ens:ScaleClusterNodePool

update

*All Resource

*

None

Request parameters

Parameter	Type	Required	Description	Example
ClusterId	string	Yes	The ID of the cluster.	eck-xxxxxxxx
NodepoolId	string	Yes	The ID of the node pool.	np2201da356f5245cf8faa522a8a4c8224
Body	object	No	The request body.
Count	integer	Yes	The desired instance count.	0

Response elements

Element	Type	Description	Example
	object	The response schema.
RequestId	string	The request ID.	C0003E8B-B930-4F59-ADC0-0E209A9012A8

Examples

Success response

JSON format

{
  "RequestId": "C0003E8B-B930-4F59-ADC0-0E209A9012A8"
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.