Add a tag to resources

If your account maintains various types of resources that are associated with each other in different ways, you can bind tags to the resources to categorize and manage the resources in a unified manner.

You can bind ten tags to a resource at most. You can bind/unbind five tags at most for the resource each time.

Take the following steps to bind resources with tags:

1. Log on to the ECS console.
2. Select the resource type in the left-side navigation bar for the binding operation, such as Instance, Cloud Disks, Snapshot, Image, and Security Groups.
3. Select a region.
4. Select the resources in the resource list to bind tags.
5. Click Edit Tags at the bottom of the resource list.

   Choose More > Edit Tags at the bottom of the resource list if the selected resources are Instance.

6. Select or cross off tags in the dialog box:
   • Click Available Tags and select available tags in the tag list for the selected resource.
   • Click Create and set Key and Value if no tags are available for the selected resource:
     • Key is mandatory whereas Value is optional.
     • Key cannot start with aliyun, http://, or https://. The key is case-insensitive and can contain up to 64 characters.
     • Value cannot start with http:// or https://. The value is case-insensitive and can contain up to 128 characters. It can be empty.
     • Any tag Key of a resource must be unique. A tag with the same key as an existing one will be overwritten.
   • Available Tags and Create are grayed out if the selected resources are already bound with 10 tags. You need to unbind some tags before binding new tags.
7. Click Confirm.

To check if tags are successfully bound, use the Edit Tags function of the resource or click Tags in the left-side navigation bar of the ECS console. You can click Tags with a tag symbol at the top of the resource list to filter resources.