How do I configure an AWS EC2 EIP with Pulumi?

In this guide, we will configure an Elastic IP (EIP) for an EC2 instance on AWS using Pulumi. An Elastic IP 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.

Key Points

• We will create an EC2 instance.
• We will allocate a new Elastic IP.
• We will associate the Elastic IP with the EC2 instance.

Below is the Pulumi program written in TypeScript to accomplish this:

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

// Create a new EC2 instance
const instance = new aws.ec2.Instance("myInstance", {
    ami: "ami-0c55b159cbfafe1f0", // Amazon Linux 2 AMI
    instanceType: "t2.micro",
    tags: {
        Name: "MyInstance",
    },
});

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

// Export the instance ID and EIP allocation ID
export const instanceId = instance.id;
export const eipAllocationId = eip.id;

Summary

In this guide, we created an EC2 instance and allocated an Elastic IP. We then associated the Elastic IP with the EC2 instance using Pulumi. This setup allows you to have a static IP address that can be remapped to another instance if needed.