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Cloud Monitor

Object groups

Creating an object group

An object group is a collection of resources, which can include instances of multiple services across multiple regions. The object group is used to define the range of resources.

Limits

General limit

A root user can create up to 100 object groups.

Up to 100 resource types can be added to an object group.

Up to 1,000 resources of the same type can be added to an object group.

Up to 5,000 resources can be added to an object group.

When you select resources by resource name, project, and label, up to 1000 resources can be matched.

Select resources by project

The following table shows cloud services that allow you to select resources by project.

Service Name	Namespace
NAT Gateway	VCM_NAT
Classic Load Balancer (CLB)	VCM_CLB
EIP	VCM_EIP
Bandwidth Package	VCM_BandwidthPackage
TR	VCM_TransitRouter
Transit Router (TR) Bandwidth Package	VCM_TransitRouterBandwidthPackage
RDS for MySQL	VCM_RDS_MySQL
Cache for Redis - Community Edition	VCM_Redis
Elastic Compute Service (ECS)	VCM_ECS
EBS	VCM_EBS
Cloud Enterprise Network (CEN)	VCM_CEN
Application Load Balancer (ALB)	VCM_ALB
Torch Object Storage (TOS)	VCM_TOS
RDS for PostgreSQL	VCM_RDS_PostgreSQL
Document Database for MongoDB - replica set	VCM_MongoDB_Replica
Document Database for MongoDB - sharding cluster	VCM_MongoDB_Sharded_Cluster

Select resources by label

The following table shows cloud services that allow you to select resources by label.

Service Name	Namespace
NAT Gateway	VCM_NAT
Classic Load Balancer (CLB)	VCM_CLB
EIP	VCM_EIP
Bandwidth Package	VCM_BandwidthPackage
Cloud Enterprise Network (CEN)	VCM_CEN
Direct Connect (DC) - DC gateway	VCM_DirectConnectGateway
DC - virtual interface	VCM_DirectConnectVIF
Cache for Redis Community Edition	VCM_Redis
Elastic Compute Service (ECS)	VCM_ECS
EBS	VCM_EBS
RDS for MySQL	VCM_RDS_MySQL
Application Load Balancer (ALB)	VCM_ALB
Torch Object Storage (TOS)	VCM_TOS
RDS for PostgreSQL	VCM_RDS_PostgreSQL
Document Database for MongoDB - replica set	VCM_MongoDB_Replica
Document Database for MongoDB - sharding cluster	VCM_MongoDB_Sharded_Cluster

Procedure

In the left navigation bar, click Object group, click Create object group to configure the object group.

Parameter	Descriptions
Object group name	Specify the name of the object group, which is used to identify the object group. warning Alert notifications sent through SMS messages may fail to be delivered if certain characters are used in the name. For more details. refer to Template review specifications.
resource type	Specify the type of monitored cloud service.
Selection method	Manual selection: manually selects resources. Resource name: selects resources based on resource names. Project: selects resources based on projects. For specific operations. refer to Managing projects. Label: selects resources based on labels. For specific operations. refer to Managing labels and resources.
Region	Select the region to which the monitored resource belongs.
Select resources	If you set the Selection method parameter to Manual selection, you can specify the resource range for the object group. warning Up to 100 resource types can be added to an object group. Up to 1,000 resources of the same type can be added to an object group. Up to 5,000 resources can be added to an object group.
Resource name	If you set the Selection method parameter to Resource name, you can specify the resource range for the object group. warning You can add multiple matching rules. Up to 10 matching rules can be added. The resource name can be up to 100 characters in length. You can select the relationship between matching rules, which include arbitrary satisfaction and All satisfied. If you select Specific resources, you can match resources by resource name. The matching rules include Prefix match, Suffix match, Contain, Not contain, Equal to, and Not equal to. If you set the matching rule to Contain, Not contain, Prefix match, or Suffix match, you can enter one resource name. If you set the matching rule to Equal to or Not equal to, you can select multiple resources and must specify the Region parameter.
Project	If you set the Selection method parameter to Project, you can specify the resource range for the object group. For supported cloud services, refer to the Select resources by project section of this topic.
Tags	If you set the Selection method parameter to Label, you can specify the resource range for the object group. warning You can add multiple matching rules. Up to 10 matching rules can be added. The label value can be up to 50 characters in length. For supported cloud services, refer to the Select resources by label section of this topic. You can select the relationship between matching rules, which include arbitrary satisfaction and All satisfied. You can select tag keys and then match resources by tag key. Supported matching rules include "Exist", "Does not exist", "Exists, and the value is equal to", "Exists, and the value is not equal to", "Exists, and the value contains", "Exists, and the value does not contain", and "Exists, and the value prefix matches", and "Exists, and the value suffix matches". If you set the matching rule to Exist or Does not exist, all tag values of the corresponding tag keys are included, and you cannot enter a tag value. If you set the matching rule to Exists, and the value is equal to or Exists, and the value is not equal to, you can select multiple tag values. If you set the matching rule to Exists, and the value contains, Exists, and the value does not contain, Exists, and the value prefix matches, and Exists, and the value suffix matches, you can enter one tag value.

Click Submit to complete the configuration.

Verifying results

Querying object groups

In the left navigation bar, click Object group to view list of the object groups.

The columns in the object group list are described as follows:

Parameter	Descriptions
Object group name	The name and ID of the object group. Click the name of the object group name to go to the details page, where you can view the basic information and resource type of the object group.
resource type	The resource type associated with the object group, for example, ECS.
Associated alert template	The alert template associated with the object group. Click the template name to go to the alert template details page.
Associated alert policy	The alert policy associated with the object group. Click the policy name to go to the alert policy details page.
Creation time	The time when the object group was created.
Last update time	The time when the object group was last modified. Editing the object group will refresh the last update time.
Action	You can copy, edit, or delete the object group. For related operations, refer to the following topics: Editing object groups Deleting an object group Copying an object group

Viewing object group details

In the object group list, click the name of the target object group to enter the details page. View details of the object group, including the basic information, association, and resource type. In the upper-right corner of the object group details page, click the corresponding button to edit, copy, or delete the object group.

In the Resource type section of the object group details page, you can view details of the cloud resource instances associated with the current object group. The details include the instance name, status, and region.

Last updated: 2026.07.10 14:02:23