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AWS::EC2::EC2Fleet InstanceMetadataOptionsRequest - AWS CloudFormation
SyntaxProperties

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AWS::EC2::EC2Fleet InstanceMetadataOptionsRequest

The metadata options for the instance.

Syntax

To declare this entity in your CloudFormation template, use the following syntax:

JSON

{
  "HttpEndpoint" : String,
  "HttpPutResponseHopLimit" : Integer,
  "HttpTokens" : String
}

YAML

  HttpEndpoint: String
  HttpPutResponseHopLimit: Integer
  HttpTokens: String

Properties

HttpEndpoint

Enables or disables the HTTP metadata endpoint on your instances.

If you specify a value of disabled, you cannot access your instance metadata.

Default: enabled

Required: No

Type: String

Allowed values: disabled | enabled

Update requires: Replacement

HttpPutResponseHopLimit

The maximum number of hops that the metadata token can travel.

Possible values: Integers from 1 to 64

Required: No

Type: Integer

Update requires: Replacement

HttpTokens

Indicates whether IMDSv2 is required.

  • optional - IMDSv2 is optional, which means that you can use either IMDSv2 or IMDSv1.

  • required - IMDSv2 is required, which means that IMDSv1 is disabled, and you must use IMDSv2.

Default:

  • If the value of ImdsSupport for the Amazon Machine Image (AMI) for your instance is v2.0 and the account level default is set to no-preference, the default is required.

  • If the value of ImdsSupport for the Amazon Machine Image (AMI) for your instance is v2.0, but the account level default is set to V1 or V2, the default is optional.

The default value can also be affected by other combinations of parameters. For more information, see Order of precedence for instance metadata options in the Amazon EC2 User Guide.

Required: No

Type: String

Allowed values: optional | required

Update requires: Replacement