Updated on 2022-09-23 GMT+08:00

Updating ECS Metadata

Function

This API is used to update ECS metadata.

  • If the metadata does not contain the target field, the field is automatically added.
  • If the metadata contains the target field, the field value is automatically updated.
  • If the field in the metadata is not requested, the field value remains unchanged.

Constraints

An ECS must be in active, stopped, paused, or suspended state, which is specified by OS-EXT-STS:vm_state.

URI

POST /v1/{project_id}/cloudservers/{server_id}/metadata

Table 1 Parameter description

Parameter

Mandatory

Description

project_id

Yes

Specifies the project ID.

For details about how to obtain the ID, see Obtaining a Project ID.

server_id

Yes

Specifies the ECS ID.

Request

Table 2 Request parameters

Parameter

Mandatory

Type

Description

metadata

Yes

Object

Specifies the user-defined metadata key-value pair.

The data structure can be empty. If the value is empty, data is not updated.

For a metadata tag:

It contains a maximum of 255 Unicode characters and cannot be left blank. A tag can contain uppercase letters (A-Z), lowercase letters (a-z), digits (0-9), hyphens (-), underscores (_), colons (:), and periods (.).

For a metadata value:

It contains a maximum of 255 Unicode characters.

Response

Table 3 Parameter description

Parameter

Type

Description

metadata

Object

Specifies the user-defined metadata key-value pair.

Example Request

POST https://{endpoint}/v1/{project_id}/cloudservers/{server_id}/metadata
{
    "metadata": {
        "key": "value"
    }
}

Example Response

{
    "metadata":{
        "key":"value"
    }
}