LaunchTemplateSpecification
Describes the launch template and the version of the launch template that Amazon EC2 Auto Scaling uses to launch Amazon EC2 instances. For more information about launch templates, see Launch templates in the Amazon EC2 Auto Scaling User Guide.
Contents
- LaunchTemplateId
-
The ID of the launch template. To get the template ID, use the Amazon EC2 DescribeLaunchTemplates API operation. New launch templates can be created using the Amazon EC2 CreateLaunchTemplate API.
Conditional: You must specify either a
LaunchTemplateId
or aLaunchTemplateName
.Type: String
Length Constraints: Minimum length of 1. Maximum length of 255.
Pattern:
[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*
Required: No
- LaunchTemplateName
-
The name of the launch template. To get the template name, use the Amazon EC2 DescribeLaunchTemplates API operation. New launch templates can be created using the Amazon EC2 CreateLaunchTemplate API.
Conditional: You must specify either a
LaunchTemplateId
or aLaunchTemplateName
.Type: String
Length Constraints: Minimum length of 3. Maximum length of 128.
Pattern:
[a-zA-Z0-9\(\)\.\-/_]+
Required: No
- Version
-
The version number,
$Latest
, or$Default
. To get the version number, use the Amazon EC2 DescribeLaunchTemplateVersions API operation. New launch template versions can be created using the Amazon EC2 CreateLaunchTemplateVersion API. If the value is$Latest
, Amazon EC2 Auto Scaling selects the latest version of the launch template when launching instances. If the value is$Default
, Amazon EC2 Auto Scaling selects the default version of the launch template when launching instances. The default value is$Default
.Type: String
Length Constraints: Minimum length of 1. Maximum length of 255.
Pattern:
[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*
Required: No
See Also
For more information about using this API in one of the language-specific Amazon SDKs, see the following: