Updated on 2025-08-18 GMT+08:00

Binding or Unbinding an EIP

Function

This API is used to bind an EIP to an instance node or unbind an EIP from an instance node. Before calling this API:

Learn how to authenticate this API.

URI

POST https://{Endpoint}/v3/{project_id}/instances/{instance_id}/nodes/{node_id}/public-ip

**Table 1** Parameter description
Parameter	Mandatory	Description
project_id	Yes	Explanation: Project ID of a tenant in a region. For details about how to obtain the project ID, see Obtaining a Project ID. Restrictions: None Value range: The value can contain 32 characters. Only letters and digits are allowed. Default value: None
instance_id	Yes	Instance ID.
node_id	Yes	Node ID.

Request Parameters

**Table 2** Parameter description
Parameter	Mandatory	Type	Description
action	Yes	String	Operation identifier. Value: BIND: An EIP is bound. UNBIND: An EIP is unbound.
public_ip	Yes	String	EIP.
public_ip_id	Yes	String	EIP ID.

Response Parameters

**Table 3** Parameter description
Parameter	Type	Description
job_id	String	Job ID.

Example Request

Binding an EIP to a GaussDB instance

POST https://gaussdb-opengauss.eu-west-101.myhuaweicloud.eu/v3/0483b6b16e954cb88930a360d2c4e663/instances/dsfae23fsfdsae3435in01/nodes/0bc478b4d132494a8f7b804da521b4b2no14/public-ip
{
    "action": "BIND",
    "public_ip": "10.154.218.161",
    "public_ip_id": "45da4782-e0c8-4aa4-a290-b8740014f710"
}

Unbinding an EIP from a GaussDB instance

POST https://gaussdb-opengauss.eu-west-101.myhuaweicloud.eu/v3/0483b6b16e954cb88930a360d2c4e663/instances/dsfae23fsfdsae3435in01/nodes/0bc478b4d132494a8f7b804da521b4b2no14/public-ip
{
    "action": "UNBIND",
    "public_ip": "10.154.218.161",
    "public_ip_id": "45da4782-e0c8-4aa4-a290-b8740014f710"
}

Example Response

EIP bounded or unbounded.

{
	"job_id": "2b414788a6004883a02390e2eb0ea227"
}

Status Code

Normal
202
Abnormal
For details, see Status Codes.

Error Code

For details, see Error Codes.

Parent topic: Instance Management