Updating ECS Metadata

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.

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

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.

**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.

**Table 3** Parameter description
Parameter	Type	Description
metadata	Object	Specifies the user-defined metadata key-value pair.

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

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

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

Parent topic: Metadata Management

Thank you very much for your feedback. We will continue working to improve the documentation.

The system is busy. Please try again later.

Which of the following issues have you encountered?

Content is inconsistent with the product UI

Unclear descriptions

Lack of examples or code

Incorrect steps

Can't find what I need

Lack of best practices

Feedback (optional)

0/500

Select at least one type of issue, and enter your comments or suggestions.

Enter a maximum of 500 characters.

Submit Cancel