Updating BMS Metadata (Native OpenStack API)

Function

This API is used to update BMS metadata.

  • If the metadata does not contain the target field, the field is automatically added to the field.

  • If the metadata contains the target field, the field value is automatically updated.

Constraints

The BMS OS-EXT-STS:vm_state attribute (BMS status) must be active, stopped, or paused.

URI

POST /v2.1/{project_id}/servers/{server_id}/metadata

Table 1 lists the parameters.

Table 1 Parameter description

Parameter

Mandatory

Description

project_id

Yes

Specifies the project ID.

For how to obtain the project ID, see Obtaining Required Information.

server_id

Yes

Specifies the BMS ID.

You can obtain the BMS ID from the BMS console or by calling the Querying BMSs (Native OpenStack API).

Request

  • Request parameters

    Parameter

    Mandatory

    Type

    Description

    metadata

    Yes

    Object

    Specifies the user-defined metadata key and value pair. For details, see Table 2.

    Table 2 metadata field data structure description

    Parameter

    Mandatory

    Type

    Description

    User-defined field key and value pair

    Yes

    String

    Specifies the user-defined metadata key and value pair.

    • Each key or value contains a maximum of 255 characters.

    • The key does not support the following special characters:

      :`~!@#$%^&*()=+<,>?/'";{[]}|\

    • The value does not support the following special characters:

      \"

  • Example request

    POST https://{ECS Endpoint}/v2.1/c685484a8cc2416b97260938705deb65/servers/95bf2490-5428-432c-ad9b-5e3406f869dd/metadata
    
    {
        "metadata": {
            "key": "value"
        }
        }
    

Response

  • Response parameters

    Parameter

    Type

    Description

    metadata

    Object

    Specifies the user-defined metadata key and value pair. For details, see Table 3.

    Table 3 metadata field data structure description

    Parameter

    Type

    Description

    User-defined field key and value pair

    String

    Specifies the key and value pair of the metadata.

    • Each key or value contains a maximum of 255 characters.

    • The value does not support the following special characters:

      \"

  • Example response

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

Returned Values

Normal values

Returned Values

Description

200

The request has been successfully processed.

For details about other returned values, see Status Codes.

Error Codes

See Error Codes.