How Do I Create a Top-Level Async Function in Pulumi?

Introduction

In this guide, we will demonstrate how to create a top-level async function in Pulumi using TypeScript. Pulumi is an Infrastructure as Code (IaC) tool that allows you to define and manage cloud resources using programming languages. By using an async function, you can leverage the power of asynchronous programming to handle operations that may take some time to complete, such as creating or updating cloud resources.

Step-by-Step Explanation

Step 1: Install Pulumi and Dependencies

First, ensure that you have Pulumi installed on your machine. You can install Pulumi using npm:

npm install -g pulumi

Next, create a new Pulumi project and install the necessary dependencies:

mkdir pulumi-async-example
cd pulumi-async-example
pulumi new typescript

Step 2: Create the Async Function

Open the index.ts file in your Pulumi project and create a top-level async function. This function will be responsible for defining and managing your cloud resources. Use the await keyword to handle asynchronous operations.

Step 3: Define Cloud Resources

Inside the async function, define the cloud resources you want to manage. For example, you can create an S3 bucket in AWS. Use the Pulumi SDK to interact with the cloud provider’s API.

Step 4: Export Outputs

Finally, export any outputs that you want to make available after the Pulumi program runs. Outputs can include resource IDs, URLs, or any other relevant information.

Summary

In this guide, we demonstrated how to create a top-level async function in Pulumi using TypeScript. By following the steps outlined above, you can leverage the power of asynchronous programming to manage cloud resources efficiently. Pulumi’s flexibility and support for multiple programming languages make it a powerful tool for Infrastructure as Code.

Full Code Example

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

const main = async () => {
    // Create an S3 bucket
    const bucket = new aws.s3.Bucket("my-bucket", {
        acl: "private",
    });

    // Export the bucket name and ARN
    return {
        bucketName: bucket.bucket,
        bucketArn: bucket.arn,
    };
};

export const outputs = main();