How do I configure an AWS SNS topic?

To set up an AWS SNS (Simple Notification Service) topic, we’ll create a resource configuration that facilitates a publish/subscribe messaging mechanism. This setup allows you to send messages from publishers to subscribers or other applications in a decoupled manner. This program will include creating the SNS topic and exporting its ARN (Amazon Resource Name) for reference in other configurations or applications.

What the Program Does:

1. AWS Provider: Establishes the AWS provider with the appropriate region.
2. SNS Topic: Configures an SNS topic for messaging.
3. Output: Exports the ARN of the SNS topic.

Here is the configuration:

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

// Step 2: Create an SNS Topic
const myTopic = new aws.sns.Topic("my_topic", {name: "my-sns-topic"});
export const snsTopicArn = myTopic.arn;

Key Points:

• AWS Provider Configuration: Set the AWS region where resources will be managed.
• SNS Topic Resource: Create an SNS topic with a specified name.
• ARN Output: Export the ARN to identify the SNS topic in other configurations.

Conclusion:

In this example, we configured an AWS SNS topic which can be leveraged for a publish/subscribe messaging system. The fundamental components included:

• Configuring the AWS provider.
• Creating an SNS topic.
• Exporting the ARN for future reference.

This streamlined the process of setting up a messaging system in your cloud infrastructure.