Use PutFunctionOnDemandConfig to configure on-demand instances - Function Compute - Alibaba Cloud -

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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

fc:PutFunctionOnDemandConfig

create

*All Resource

*

None

Request syntax

PUT /2021-04-06/services/{serviceName}/functions/{functionName}/on-demand-config HTTP/1.1

Path Parameters

Parameter	Type	Required	Description	Example
serviceName	string	Yes	The name of the service.	demo-service
functionName	string	Yes	The name of the function.	demo-function

Request parameters

Parameter	Type	Required	Description	Example
qualifier	string	Yes	The service alias or latest version. Other versions are not supported.	prod
body	object	No	The request body.
maximumInstanceCount	integer	Yes	The maximum number of on-demand instances. For more information, see Configure provisioned instances and auto scaling rules.	10
If-Match	string	No	If the ETag specified in the request matches the ETag value of the object, the object and 200 OK are returned. Otherwise, 412 Precondition Failed is returned.	e19d5cd5af0378da05f63f891c7467af
X-Fc-Account-Id	string	No	The ID of your Alibaba Cloud account.	188077086902****
X-Fc-Date	string	No	The time when the function is invoked. The value is in the EEE,d MMM yyyy HH:mm:ss GMT format.	Wed, 11 May 2022 09:00:00 GMT
X-Fc-Trace-Id	string	No	The unique ID of the trace.	r9s89isisi****

Response elements

Element	Type	Description	Example
	object	The response body.
resource	string	The description of the resource.	12345#servierName#qualifier#functionName
maximumInstanceCount	integer	The maximum number of instances.	10

Examples

Success response

JSON format

{
  "resource": "12345#servierName#qualifier#functionName",
  "maximumInstanceCount": 10
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.