Setting a Policy for a Serverless DB Instance

Function

This API is used to set a policy for a serverless DB instance. Before calling this API:

Learn how to authorize and authenticate it.
Obtain the required region and endpoint.

URI

PUT /v3/{project_id}/instances/{instance_id}/serverless/policy

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Definition Project ID of a tenant in a region. To obtain this value, see Obtaining a Project ID. Constraints N/A Range The value contains 32 characters. Only letters and digits are allowed. Default Value N/A
instance_id	Yes	String	Definition Instance ID, which uniquely identifies an instance. Constraints N/A Range The value contains 36 characters with a suffix of in07. Only letters and digits are allowed. Default Value N/A

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	Definition User token. To obtain this value, call the IAM API for obtaining a user token. The value of X-Subject-Token in the response header is the token value. Constraints N/A Range N/A Default Value N/A
Content-Type	Yes	String	Definition Content type. Constraints N/A Range application/json Default Value application/json
X-Language	No	String	Definition Request language type. Constraints N/A Range en-us zh-cn Default Value en-us

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
min_vcpus	Yes	Integer	Definition Minimum number of vCPUs for a single node. Range You can obtain the value of this parameter from Querying Database Specifications.
max_vcpus	Yes	Integer	Definition Maximum number of vCPUs for a single node. Range You can obtain the value of this parameter from Querying Database Specifications.

Response Parameters

Status code: 200

Success.

Status code: 400

**Table 4** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 500

**Table 5** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Example Request

Setting the minimum number of vCPUs to 1 and the maximum number of vCPUs to 4

PUT https://{Endpoint}/v3/054e292c9880d4992f02c0196d3ea468/instances/096c0fc43e804757b59946b80dc27f8bin07/serverless/policy

{
  "min_vcpus" : 1,
  "max_vcpus" : 4
}