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Elastic Compute Service:ModifyLaunchTemplateDefaultVersion

Last Updated:Sep 27, 2024

Changes the default version of a launch template. When you call this operation, you can specify DefaultVersionNumber in the request. If you do not specify a version when you create Elastic Compute Service (ECS) instances based on a launch template, the default version of the launch template is used.

Operation description

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer.

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

  • Operation: the value that you can use in the Action element to specify the operation on a resource.
  • Access level: the access level of each operation. The levels are read, write, and list.
  • Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
    • The required resource types are displayed in bold characters.
    • If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
  • Condition Key: the condition key that is defined by the cloud service.
  • Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
OperationAccess levelResource typeCondition keyAssociated operation
ecs:ModifyLaunchTemplateDefaultVersionupdate
  • All Resources
    *
    none
none

Request parameters

ParameterTypeRequiredDescriptionExample
RegionIdstringYes

The region ID of the launch template. You can call the DescribeRegions operation to query the most recent region list.

cn-hangzhou
LaunchTemplateIdstringNo

The ID of the launch template. You must specify the LaunchTemplateId or LaunchTemplateName parameter to determine an instance launch template.

lt-s-bp177juajht6****
LaunchTemplateNamestringNo

The name of the instance launch template. You must specify the LaunchTemplateId or LaunchTemplateName parameter to determine an instance launch template.

testLaunchTemplateName
DefaultVersionNumberlongYes

The default version number of the instance launch template.

2

Response parameters

ParameterTypeDescriptionExample
object
RequestIdstring

The ID of the request.

473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E
LaunchTemplateIdstring

The ID of the launch template. For more information, see DescribeLaunchTemplates .

lt-bp1apo0bbbkuy0rj****

Examples

Sample success responses

JSONformat

{
  "RequestId": "473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E",
  "LaunchTemplateId": "lt-bp1apo0bbbkuy0rj****"
}

Error codes

HTTP status codeError codeError messageDescription
400InvalidRegion.NotExist%sThe specified region does not exist.
400MissingParameter%sA parameter is not specified.
400InvalidParameter%sThe specified parameter is invalid.
403InnerServiceFailed%sAn internal service cannot be called.
404InvalidLaunchTemplate.NotFound%sThe specified launch template does not exist. Check whether the parameter value is correct.
404InvalidLaunchTemplateVersion.NotFound%sThe specified version of the launch template does not exist. Check whether the parameter values are correct.

For a list of error codes, visit the Service error codes.

Change history

Change timeSummary of changesOperation
2023-03-10The Error code has changed. The response structure of the API has changedView Change Details