Updated on 2025-10-24 GMT+08:00

Creating Shard or Config IP Addresses of a Cluster Instance

API Description

This API is used to create the IP addresses of shard or config nodes.

Constraints

Frozen instances do not support this operation.
DB instances associated with the IPv6 subnet do not support this operation.
If the IP address is enabled, restart the nodes for the setting to take effect.
This function cannot be disabled after being enabled.

URI

URI format
POST /v3/{project_id}/instances/{instance_id}/create-ip
URI example
https://dds.ap-southeast-1.myhuaweicloud.com/v3/0549b4a43100d4f32f51c01c2fe4acdb/instances/9136fd2a9fcd405ea4674276ce36dae8in02/create-ip

**Table 1** Path parameters
Name	Mandatory	Type	IN	Description
project_id	Yes	string	path	Explanation: Project ID of a tenant in a region. To obtain the project ID, see Obtaining a Project ID. Constraints: N/A Value range: N/A Default value: N/A
instance_id	Yes	string	path	Explanation: Instance ID, which can be obtained by calling the API described in Querying Instances and Details. If you do not have an instance, call the API described in Creating a DB Instance to create one. Constraints: N/A Value range: N/A Default value: N/A

Request Parameters

**Table 2** Request header parameters
Name	Mandatory	Type	IN	Description
X-Auth-Token	Yes	string	header	Definition User token obtained from IAM. For details, see Authentication. Constraints N/A Range N/A Default Value N/A

**Table 3** Parameter description
Name	Type	Mandatory	Description
type	String	Yes	Definition Cluster instance type. Constraints When adding a shard group, set the value to shard. When adding a config group, set the value to config. Range N/A Default Value N/A
target_id	String	No	Definition Shard group ID. Constraints CAUTION: If the shard or config IP address is added for the first time, leave this parameter empty. If a shard IP address has been added to a DB instance, you need to specify this parameter to add an IP address to the new shard group. Range N/A Default Value N/A
password	String	Yes	Definition The password for enabling this function for a cluster. Constraints Enter a strong password to improve security, preventing security risks such as brute force cracking. CAUTION: This password cannot be changed. Exercise caution when performing this operation. Range The value must be 8 to 32 characters in length and contain uppercase letters (A to Z), lowercase letters (a to z), digits (0 to 9), and special characters, such as ~!@#%^-_=+? Default Value* N/A

Example Requests

Creating the config IP address of a cluster instance

POST https://dds.cn-north-1.myhuaweicloud.com/v3/619d3e78f61b4be68bc5aa0b59edcf7b/instances/520c58ba00a3497e97ce0b9604874dd6in02/create-ip

{
"type" : "config",
"password" : "******"
}

Creating the shard IP address of a cluster instance for the first time

POST https://dds.cn-north-1.myhuaweicloud.com/v3/619d3e78f61b4be68bc5aa0b59edcf7b/instances/520c58ba00a3497e97ce0b9604874dd6in02/create-ip

{
"type" : "shard",
"password" : "******"
}

Creating the IP address for a newly-added shard group

POST https://dds.cn-north-1.myhuaweicloud.com/v3/619d3e78f61b4be68bc5aa0b59edcf7b/instances/520c58ba00a3497e97ce0b9604874dd6in02/create-ip

{
"type" : "shard",
"target_id" : "91bac9f23ead42e19013333e05f44829gr02",
"password" : "******"
}

Response Parameters

Parameter description
None
Example Responses
None

Status Code

For more information, see Status Code.

Error Code

For more information, see Error Code.

Parent topic: DB Instance Management