Updated on 2022-02-22 GMT+08:00

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, paused, or suspended.

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

server_id

Yes

Specifies the BMS ID.

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

Request Message

  • 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.

    • The maximum size for each metadata key and value pair is 255 bytes.
    • The key does not support the following special characters:

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

    • The value does not support the following special characters:

      \"

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

Response Message

  • 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.

    • The maximum size for each metadata key and value pair is 255 bytes.
    • The value does not support the following special characters:

      \"

  • Example response
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    {
        "metadata": {
            "key": "value"
        }
        }
    

Returned Values

Normal values

Returned Values

Description

200

The server has successfully processed the request.

For details about other returned values, see Status Codes.

Error Codes

See Error Codes.