Help Center/ IoT Device Access/ User Guide/ IoTDA Instances/ Tag Management/ Overview
Updated on 2024-04-29 GMT+08:00
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Overview

Scenarios

You can add tags to cloud resources for quicker search. You can view, modify, and delete these tags in a unified manner, facilitating cloud resource management. You can also use the tags to collect resource cost statistics from the service dimension.

Tag Naming Rules

  • Each tag consists of a key-value pair.
  • A maximum of 20 tags can be added for an IoTDA instance.
  • For each resource, a tag key must be unique and can have only one tag value.
  • A tag consists of a tag key and a tag value. Table 1 lists the tag key and value requirements.
Table 1 Tag naming rules

Parameter

Rule

Example

Tag key

The value cannot be empty. Must be unique for the same instance. A tag key can contain a maximum of 36 characters. Only letters, digits, hyphens (-), underscores (_), and Unicode characters (\u4E00-\u9FFF) are allowed.

Organization

Tag value

It can contain a maximum of 43 characters and can be left blank. Only letters, digits, periods (.), hyphens (-), underscores (_), and Unicode characters (\u4E00-\u9FFF).are allowed.

Apache

If your organization has configured tag policies for IoTDA, add tags to instances based on the policies. If a tag does not comply with the tag policies, instance creation may fail. Contact your administrator to learn more about tag policies.

Parent topic: Tag Management