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The AWS::EC2::EIP resource allocates an Elastic IP (EIP) address and can, optionally, associate it with an Amazon EC2 instance.
The Instance ID of the Amazon EC2 instance that you want to associate with this Elastic IP address.
Update requires: No interruption
vpc to allocate the address to your Virtual Private Cloud
(VPC). No other values are supported.
If you define an Elastic IP address and associate it with a VPC that is
defined in the same template, you must declare a dependency on the VPC-gateway
attachment by using the
DependsOn attribute on this resource. For
more information, see DependsOn Attribute.
Required: Conditional. Required when allocating an address to a VPC
Update requires: Replacement
When you specify the logical ID of an AWS::EC2::EIP object as an argument to the
function, AWS CloudFormation returns the value of the instance's
For more information about using the
Ref function, see Ref.
Fn::GetAtt returns a value for a specified attribute of this type.
This section lists the available attributes and corresponding return values.
The ID that AWS assigns to represent the allocation of the address for use
with Amazon VPC. This is returned only for VPC elastic IP addresses. Example
For more information about using
Fn:GetAtt, see Fn::GetAtt.
To view AWS::EC2::EIP snippets, see Assigning an Amazon EC2 Elastic IP Using AWS::EC2::EIP Snippet.