Request Parameters Response Elements Errors Examples See Also

GetTemplateSummary

Returns information about a new or existing template. The GetTemplateSummary action is useful for viewing parameter information, such as default parameter values and parameter types, before you create or update a stack or stack set.

You can use the GetTemplateSummary action when you submit a template, or you can get template information for a stack set, or a running or deleted stack.

For deleted stacks, GetTemplateSummary returns the template information for up to 90 days after the stack has been deleted. If the template doesn't exist, a ValidationError is returned.

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

CallAs

[Service-managed permissions] Specifies whether you are acting as an account administrator in the organization's management account or as a delegated administrator in a member account.

By default, SELF is specified. Use SELF for stack sets with self-managed permissions.

If you are signed in to the management account, specify SELF.
If you are signed in to a delegated administrator account, specify DELEGATED_ADMIN.

Your AWS account must be registered as a delegated administrator in the management account. For more information, see Register a delegated administrator in the AWS CloudFormation User Guide.

Type: String

Valid Values: SELF | DELEGATED_ADMIN

Required: No

StackName

The name or the stack ID that's associated with the stack, which aren't always interchangeable. For running stacks, you can specify either the stack's name or its unique stack ID. For deleted stack, you must specify the unique stack ID.

Conditional: You must specify only one of the following parameters: StackName, StackSetName, TemplateBody, or TemplateURL.

Type: String

Length Constraints: Minimum length of 1.

Pattern: ([a-zA-Z][-a-zA-Z0-9]*)|(arn:\b(aws|aws-us-gov|aws-cn)\b:[-a-zA-Z0-9:/._+]*)

Required: No

StackSetName

The name or unique ID of the stack set from which the stack was created.

Conditional: You must specify only one of the following parameters: StackName, StackSetName, TemplateBody, or TemplateURL.

Type: String

Pattern: [a-zA-Z][-a-zA-Z0-9]*(?::[a-zA-Z0-9]{8}-[a-zA-Z0-9]{4}-[a-zA-Z0-9]{4}-[a-zA-Z0-9]{4}-[a-zA-Z0-9]{12})?

Required: No

TemplateBody

Structure containing the template body with a minimum length of 1 byte and a maximum length of 51,200 bytes. For more information about templates, see Template anatomy in the AWS CloudFormation User Guide.

Conditional: You must specify only one of the following parameters: StackName, StackSetName, TemplateBody, or TemplateURL.

Type: String

Length Constraints: Minimum length of 1.

Required: No

TemplateSummaryConfig

Specifies options for the GetTemplateSummary API action.

Type: TemplateSummaryConfig object

Required: No

TemplateURL

Location of file containing the template body. The URL must point to a template (max size: 460,800 bytes) that's located in an Amazon S3 bucket or a Systems Manager document. For more information about templates, see Template anatomy in the AWS CloudFormation User Guide.

Conditional: You must specify only one of the following parameters: StackName, StackSetName, TemplateBody, or TemplateURL.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 1024.

Required: No

Response Elements

The following elements are returned by the service.

Capabilities.member.N

The capabilities found within the template. If your template contains IAM resources, you must specify the CAPABILITY_IAM or CAPABILITY_NAMED_IAM value for this parameter when you use the CreateStack or UpdateStack actions with your template; otherwise, those actions return an InsufficientCapabilities error.

For more information, see Acknowledging IAM Resources in AWS CloudFormation Templates.

Type: Array of strings

Valid Values: CAPABILITY_IAM | CAPABILITY_NAMED_IAM | CAPABILITY_AUTO_EXPAND

CapabilitiesReason

The list of resources that generated the values in the Capabilities response element.

Type: String

DeclaredTransforms.member.N

A list of the transforms that are declared in the template.

Type: Array of strings

Description

The value that's defined in the Description property of the template.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 1024.

Metadata

The value that's defined for the Metadata property of the template.

Type: String

Parameters.member.N

A list of parameter declarations that describe various properties for each parameter.

Type: Array of ParameterDeclaration objects

ResourceIdentifierSummaries.member.N

A list of resource identifier summaries that describe the target resources of an import operation and the properties you can provide during the import to identify the target resources. For example, BucketName is a possible identifier property for an AWS::S3::Bucket resource.

Type: Array of ResourceIdentifierSummary objects

ResourceTypes.member.N

A list of all the template resource types that are defined in the template, such as AWS::EC2::Instance, AWS::Dynamo::Table, and Custom::MyCustomInstance.

Type: Array of strings

Length Constraints: Minimum length of 1. Maximum length of 256.

Version

The AWS template format version, which identifies the capabilities of the template.

Type: String

Warnings

An object containing any warnings returned.

Type: Warnings object

Errors

For information about the errors that are common to all actions, see Common Errors.

StackSetNotFound

The specified stack set doesn't exist.

HTTP Status Code: 404

Examples

GetTemplateSummary

This example illustrates one usage of GetTemplateSummary.

Sample Request



https://cloudformation.us-east-1.amazonaws.com/
 ?Action=GetTemplateSummary
 &TemplateURL=https%3A%2F%2Fs3-us-east-1.amazonaws.com%2Fsamplebucketname%2Fsampletemplate.template
 &Version=2010-05-15
 &SignatureVersion=2
 &Timestamp=2010-07-27T22%3A26%3A28.000Z
 &AWSAccessKeyId=[AWS Access KeyID]
 &Signature=[Signature]

Sample Response



<GetTemplateSummaryResponse xmlns="http://cloudformation.amazonaws.com/doc/2010-05-15/">
  <GetTemplateSummaryResult>
    <Description>A sample template description.</Description>
    <Parameters>
      <member>
        <NoEcho>false</NoEcho>
        <ParameterKey>KeyName</ParameterKey>
        <Description>Name of an existing EC2 KeyPair to enable SSH access to the instance</Description>
        <ParameterType>AWS::EC2::KeyPair::KeyName</ParameterType>
      </member>
    </Parameters>
    <Metadata>{"Instances":{"SampleDescription":"Information about the instances"}}</Metadata>
    <Version>2010-09-09</Version>
  </GetTemplateSummaryResult>
  <ResponseMetadata>
    <RequestId>b9b4b068-3a41-11e5-94eb-example</RequestId>
  </ResponseMetadata>
</GetTemplateSummaryResponse>