How do I configure an AWS EC2 Elastic IP (EIP) with Pulumi?

In this guide, we will configure an AWS EC2 Elastic IP (EIP) using Pulumi. An Elastic IP address is a static IPv4 address designed for dynamic cloud computing. With an EIP, you can mask the failure of an instance or software by rapidly remapping the address to another instance in your account.

We will perform the following steps:

1. Create an EC2 instance.
2. Allocate an Elastic IP.
3. Associate the Elastic IP with the EC2 instance.

import * as pulumi from "@pulumi/pulumi";
import * as aws from "@pulumi/aws";

// Create an EC2 instance
const ec2Instance = new aws.ec2.Instance("myInstance", {
    ami: "ami-0c55b159cbfafe1f0", // Ubuntu Server 20.04 LTS (HVM), SSD Volume Type
    instanceType: "t2.micro",
    tags: {
        Name: "myInstance",
    },
});

// Allocate an Elastic IP
const eip = new aws.ec2.Eip("myEip", {
    instance: ec2Instance.id,
    tags: {
        Name: "myEip",
    },
});

// Export the public IP of the EIP
export const publicIp = eip.publicIp;

Key Points

• EC2 Instance: We create an EC2 instance using the aws.ec2.Instance resource.
• Elastic IP: We allocate an Elastic IP using the aws.ec2.Eip resource and associate it with the EC2 instance.
• Export: We export the public IP of the Elastic IP for easy access.

Summary

In this guide, we configured an AWS EC2 Elastic IP (EIP) using Pulumi. We created an EC2 instance, allocated an Elastic IP, and associated the Elastic IP with the EC2 instance. This setup allows you to have a static IP address that can be remapped to any instance in your account, providing flexibility and reliability for your applications.