AWS::EC2::Instance PrivateDnsNameOptions - AWS CloudFormation
SyntaxProperties

AWS::EC2::Instance PrivateDnsNameOptions

The type of hostnames to assign to instances in the subnet at launch. For IPv4 only subnets, an instance DNS name must be based on the instance IPv4 address. For IPv6 only subnets, an instance DNS name must be based on the instance ID. For dual-stack subnets, you can specify whether DNS names use the instance IPv4 address or the instance ID. For more information, see Amazon EC2 instance hostname types in the Amazon Elastic Compute Cloud User Guide.

Syntax

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

JSON

{
  "EnableResourceNameDnsAAAARecord" : Boolean,
  "EnableResourceNameDnsARecord" : Boolean,
  "HostnameType" : String
}

Properties

EnableResourceNameDnsAAAARecord

Indicates whether to respond to DNS queries for instance hostnames with DNS AAAA records. For more information, see Amazon EC2 instance hostname types in the Amazon Elastic Compute Cloud User Guide.

Required: No

Type: Boolean

Update requires: Some interruptions

EnableResourceNameDnsARecord

Indicates whether to respond to DNS queries for instance hostnames with DNS A records. For more information, see Amazon EC2 instance hostname types in the Amazon Elastic Compute Cloud User Guide.

Required: No

Type: Boolean

Update requires: Some interruptions

HostnameType

The type of hostnames to assign to instances in the subnet at launch. For IPv4 only subnets, an instance DNS name must be based on the instance IPv4 address. For IPv6 only subnets, an instance DNS name must be based on the instance ID. For dual-stack subnets, you can specify whether DNS names use the instance IPv4 address or the instance ID. For more information, see Amazon EC2 instance hostname types in the Amazon Elastic Compute Cloud User Guide.

Required: No

Type: String

Allowed values: ip-name | resource-name

Update requires: Some interruptions