How do I configure an AWS EBS volume with infrastructure as code?

To configure an AWS EBS (Elastic Block Store) volume, you need to define the necessary resources for an EBS volume within the AWS infrastructure. EBS volumes provide scalable block storage for use with Amazon EC2 instances.

Here’s an example of how to set up an AWS EBS volume, including creating an EC2 instance and attaching the EBS volume to the instance.

Explanation

1. Provider: The AWS provider block defines which provider you are working with, here it’s AWS.
2. Data Source for AMI: The data "aws_ami" block is used to find the most recent Amazon Machine Image (AMI) for a given criteria such as ownership and root device type.
3. EC2 Instance: An instance resource defines the configuration for launching an EC2 instance.
4. EBS Volume: The aws_ebs_volume resource creates an EBS volume with the specified availability zone and size.
5. Volume Attachment: The aws_volume_attachment resource attaches the EBS volume to the previously created EC2 instance.
6. Outputs: The output values export information that might be useful, such as the instance ID and volume ID.

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

// Data source to obtain the latest Amazon Linux 2 AMI
const latestAmazonLinux = aws.ec2.getAmiOutput({
    mostRecent: true,
    owners: ["amazon"],
    filters: [{
        name: "name",
        values: ["amzn2-ami-hvm-*-x86_64-gp2"],
    }],
});
// Create an EC2 instance
const example = new aws.ec2.Instance("example", {
    ami: latestAmazonLinux.apply(latestAmazonLinux => latestAmazonLinux.id),
    instanceType: aws.ec2.InstanceType.T2_Micro,
    tags: {
        Name: "example-instance",
    },
});
// Create an EBS volume
const exampleVolume = new aws.ebs.Volume("example", {
    availabilityZone: example.availabilityZone,
    size: 10,
    tags: {
        Name: "example-volume",
    },
});
// Attach the EBS volume to the EC2 instance
const exampleVolumeAttachment = new aws.ec2.VolumeAttachment("example", {
    deviceName: "/dev/sdh",
    volumeId: exampleVolume.id,
    instanceId: example.id,
});
export const instanceId = example.id;
export const volumeId = exampleVolume.id;
export const volumeAttachmentId = exampleVolumeAttachment.id;

Summary

In this configuration, we set up an AWS EBS volume and attach it to an EC2 instance. We defined the necessary provider, fetched the latest AMI, created an EC2 instance, provisioned an EBS volume, and attached the EBS volume to the instance. Finally, we exported the instance ID, volume ID, and attachment ID as outputs for further reference.