Elastic IP

📦 Overview

This Terraform module provisions a standalone Elastic IP (EIP) in AWS for resources requiring a fixed public IPv4 address.

It’s ideal for use with NAT gateways, bastion hosts, or any compute instance needing consistent public exposure.

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✅ Key Features

• Allocates a static public IPv4 address in a chosen region
• Tags the EIP with Name, Environment, and other metadata
• Can be used independently or integrated into composed stacks
• Returns both the EIP address and allocation ID as outputs

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💼 Use Cases

• Assigning a static IP to bastion hosts for SSH access
• Reserving an address for a NAT Gateway in a private subnet setup
• Supporting allowlists in firewalls that require fixed IPs
• Mapping DNS records to a consistent IP during CI/CD deployments

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📥 Input Variables

Name	Type	Description
region	string	AWS region to deploy the Elastic IP
environment	string	Tag to specify the deployment environment (e.g., dev, staging, prod)
name	string	Descriptive tag for identifying the EIP

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📤 Outputs

Name	Description
eip_id	The ID of the created Elastic IP
eip_address	The public IPv4 address assigned

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🚀 Deployment Readiness

• ✅ Compatible with Terraform 1.0+
• ✅ Tested with AWS provider 5.x
• 🧪 Requires IAM permissions for ec2:AllocateAddress and ec2:DescribeAddresses

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🛠️ Example Usage

module "elastic_ip" {
source = "git::ssh://git@github.com/archiphire/aws-level-1-modules.git//network/elastic-ip?ref=v1.0.0"

region = "us-east-1"
environment = "prod"
name = "bastion-ip"
}

terraform init
terraform plan
terraform apply

or

tofu init
tofu plan
tofu apply

🧹 Cleanup Options

Terraform Destroy (for test environments):

terraform destroy

or

tofu destroy

Manual Deletion (for production):

Release the Elastic IP manually in the AWS Console or via CLI:

aws ec2 release-address --allocation-id <eip_id>

🛡️ Notes

This is a Level 1 networking module for provisioning static IPs. To associate this EIP with EC2 instances or NAT gateways, refer to the relevant module documentation for those resources.

🔒 Deployment Package Notice

This module is part of the Level 1 AWS License Tier. To access the full deployment package and source code, subscribe to Archiphire.