UpdateStackInstances - API Reference| Alibaba Cloud Documentation Center

A stack instance is a stack in a specified account within a region. You must specify at least one account and one region.

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters


Parameter	Type	Required	Example	Description
Action	String	Yes	UpdateStackInstances	The operation that you want to perform. Set the value to UpdateStackInstances.
AccountIds	Json	Yes	["123456"]	The list of target account IDs, in JSON format. A maximum of 20 accounts can be specified.
ParameterOverrides.N.ParameterKey	String	Yes	Amount	The name of override parameter N. If the name and value of the parameter are not specified, the name and value specified during stack group creation are used. Maximum value of N: 200. Note The ParameterOverrides parameter is optional. If ParameterOverrides is specified, ParameterOverrides.N.ParameterKey is required.
ParameterOverrides.N.ParameterValue	String	Yes	1	The value of override parameter N. If the name and value of the parameter are not specified, the name and value specified during stack group creation are used. Maximum value of N: 200. Note The ParameterOverrides parameter is optional. If ParameterOverrides is specified, ParameterOverrides.N.ParameterValue is required.
RegionId	String	Yes	cn-hangzhou	The region ID of the stack. You can call the DescribeRegions operation to query the most recent region list.
RegionIds	Json	Yes	["cn-hangzhou", "cn-beijing"]	The list of target regions, in JSON format. A maximum of 20 regions can be specified.
StackGroupName	String	Yes	MyStackGroup	The name of the stack group. The name must be unique in a region. The name can be up to 255 characters in length and can contain digits, letters, hyphens (-), and underscores (_). It must start with a digit or letter.
ClientToken	String	No	123e4567-e89b-12d3-a456-42665544****	The client token that is used to ensure the idempotence of the request. You can use the client to generate the value, but you must ensure that it is unique among different requests. The token can be up to 64 characters in length and can contain letters, digits, hyphens (-), and underscores (_). For more information, see How to ensure idempotence.
OperationDescription	String	No	Update stack instances in hangzhou and beijing	The description of the operation. The description must be 1 to 256 characters in length.
OperationPreferences	Json	No	{"FailureToleranceCount": 1, "MaxConcurrentCount": 2}	The operation settings, in JSON format. The following fields are supported: FailureToleranceCount The maximum number of stack group operation failures that can occur. In a stack group operation, if the total number of failures does not exceed the FailureToleranceCount value, the operation succeeds. Otherwise, the operation fails. If FailureToleranceCount is not specified, the default value 0 is used. You can specify one of FailureToleranceCount or FailureTolerancePercentage parameters, but you cannot specify both of them. Valid values: 0 to 20. FailureTolerancePercentage The percentage of stack group operation failures that can occur. In a stack group operation, if the percentage of failures does not exceed the FailureTolerancePercentage value, the operation succeeds. Otherwise, the operation fails. You can specify one of FailureToleranceCount or FailureTolerancePercentage parameters, but you cannot specify both of them. Valid values: 0 to 100. MaxConcurrentCount The maximum number of target accounts in which a stack group operation can be performed at one time. You can specify one of MaxConcurrentCount or MaxConcurrentPercentage parameters, but you cannot specify both of them. Valid values: 1 to 20. MaxConcurrentPercentage The maximum percentage of target accounts in which a stack group operation can be performed at one time. You can specify one of MaxConcurrentCount or MaxConcurrentPercentage parameters, but you cannot specify both of them. Valid values: 1 to 100.

Response parameters


Parameter	Type	Example	Description
OperationId	String	6da106ca-1784-4a6f-a7e1-e723863d****	The ID of the operation.
RequestId	String	14A07460-EBE7-47CA-9757-12CC4761D47A	The ID of the request.

Examples

Sample requests

http(s)://ros.aliyuncs.com/? Action=UpdateStackInstances
&AccountIds=["12****"]
&ParameterOverrides.1.ParameterKey=Amount
&ParameterOverrides.1.ParameterValue=1
&RegionId=cn-hangzhou
&RegionIds=["cn-hangzhou", "cn-beijing"]
&StackGroupName=MyStackGroup
&<Common request parameters>

Sample success responses

XML format

<UpdateStackInstancesResponse>
          <OperationId>6da106ca-1784-4a6f-a7e1-e723863d****</OperationId>
          <RequestId>14A07460-EBE7-47CA-9757-12CC4761D47A</RequestId>
</UpdateStackInstancesResponse>

JSON format

{
    "OperationId":"6da106ca-1784-4a6f-a7e1-e723863d****",
    "RequestId":"14A07460-EBE7-47CA-9757-12CC4761D47A"
}

Error codes

For a list of error codes, visit the API Error Center.


Error code	Error message	HTTP status code	Description
InvalidParameter	The specified parameter {name} is invalid, {reason}.	400	The error message returned because the specified parameter is invalid. name indicates the parameter name, and reason indicates the reason for the error.
StackGroupNotFound	The StackGroup ({name}) could not be found.	404	The error message returned because the specified stack group does not exist. name indicates the stack group name.
StackGroupOperationInProgress	Another Operation on StackGroup ({name}) is in progress.	409	The error message returned because the stack group has an ongoing operation. name indicates the stack group name.