Contents：
1. API Description
Domain name for API request: as.tencentcloudapi.com.
This API (AttachInstances) is used to add CVM instances to an auto scaling group.
A maximum of 20 requests can be initiated per second for this API.
Note: This API supports Finance regions. If the common parameter Region is a Finance region, a domain name with the Finance region needs to be specified, for example: as.ap-shanghai-fsi.tencentcloudapi.com
2. Input Parameters
The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.
| Parameter Name | Required | Type | Description |
|---|---|---|---|
| Action | Yes | String | Common parameter. The value used for this API: AttachInstances |
| Version | Yes | String | Common parameter. The value used for this API: 2018-04-19 |
| Region | Yes | String | Common parameter. For more information, please see the list of regions supported by the product. |
| AutoScalingGroupId | Yes | String | Auto scaling group ID |
| InstanceIds.N | Yes | Array of String | List of CVM instance IDs |
3. Output Parameters
| Parameter Name | Type | Description |
|---|---|---|
| ActivityId | String | Scaling activity ID |
| RequestId | String | The unique request ID, which is returned for each request. RequestId is required for locating a problem. |
4. Example
Example1 Adding an Instance to an Auto Scaling Group
Input Example
https://as.tencentcloudapi.com/?Action=AttachInstances
&AutoScalingGroupId=asg-boz1qhnk
&InstanceIds.0=ins-cri8d02t
&InstanceIds.1=ins-osckfnm7
&<Common request parameter>Output Example
{
"Response": {
"ActivityId": "asa-q59zikez",
"RequestId": "5b039ee6-e8ff-4605-bb24-b45337747431"
}
}5. Developer Resources
API Explorer
This tool allows online call, signature authentication, SDK code generation and quick search of APIs to greatly improve the efficiency of using TencentCloud APIs.
6. Error Code
The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.
| Error Code | Description |
|---|---|
| InternalError | Internal error. |
| InvalidParameterValue.LimitExceeded | The value exceeds the limit. |
| ResourceInsufficient.AutoScalingGroupAboveMaxSize | The maximum number of instances in the auto scaling group is exceeded. |
| ResourceNotFound.AutoScalingGroupIdNotFound | The auto scaling group does not exist. |
| ResourceNotFound.InstancesNotFound | The specified instance does not exist. |
| ResourceUnavailable.AutoScalingGroupInActivity | The auto scaling group is active. |
| ResourceUnavailable.CvmVpcInconsistent | The instance and the auto scaling group are in different VPCs. |
| ResourceUnavailable.InstancesAlreadyInAutoScalingGroup | The instance already exists in the auto scaling group. |
