Managing Instance Tags

Tags facilitate RabbitMQ instance identification and management.

You can add tags to a RabbitMQ instance when creating the instance or add tags on the details page of the created instance. Up to 20 tags can be added to an instance. Tags can be modified and deleted.

A tag consists of a tag key and a tag value. Table 1 lists the tag key and value requirements.

**Table 1** Tag key and value requirements
Name	Rules
Tag key	Cannot be left blank. Must be unique for the same instance. Can contain a maximum of 36 characters. Cannot contain the following characters: =*<>\,\|/ Cannot start or end with a space.
Tag value	Can contain a maximum of 43 characters. Cannot contain the following characters: =*<>\,\|/ Cannot start or end with a space.

Procedure

Log in to the management console.
In the upper left corner, click and select a region.

Select the same region as your application service.
Click and choose Application > Distributed Message Service for RabbitMQ to open the console of DMS for RabbitMQ.
Click the desired instance to view its details.
Click the Tags tab.

View the tags of the instance.
Perform the following operations as required:
- Adding a tag
  1. Click Add Tag.
    If you have created predefined tags, select a predefined pair of tag key and value. To view or create predefined tags, click View predefined tags. Then you will be directed to the TMS console.
    
    You can also create new tags by entering Tag key and Tag value.
  2. Click OK.
- Modifying a tag
  In the row containing the tag to be modified, click Edit in the Operation column. Enter the new tag value and click OK.
- Deleting a tag
  In the row containing the tag to be deleted, click Delete in the Operation column. Then click Yes.