Validate ACM Certificates Using DNS.

In this Pulumi program, we will validate ACM certificates using DNS in TypeScript. We will use AWS ACM (AWS Certificate Manager) to request the certificate and Route 53 to create the necessary DNS records for validation. The program will automate the process of creating and validating the certificate.

Introduction

In this solution, we will automate the process of validating ACM certificates using DNS with Pulumi in TypeScript. The key services involved are AWS Certificate Manager (ACM) and AWS Route 53. ACM is used to manage SSL/TLS certificates, and Route 53 is used to manage DNS records. By automating this process, we can ensure that our certificates are always up-to-date and properly validated.

Step-by-Step Explanation

Step 1: Set up Pulumi Project

First, we need to set up a new Pulumi project and install the necessary dependencies. We will use the Pulumi CLI to create a new project and install the AWS SDK for Pulumi.

Step 2: Request ACM Certificate

Next, we will request a new ACM certificate for our domain. We will specify the domain name and the validation method (DNS) in the request.

Step 3: Create DNS Validation Records

Once the certificate request is created, we will retrieve the DNS validation records from the certificate and create the corresponding DNS records in Route 53. This will allow AWS to validate the ownership of the domain.

Step 4: Wait for Validation

After creating the DNS records, we will wait for the certificate to be validated. This may take some time, so we will use Pulumi’s Output and apply methods to handle the asynchronous nature of the validation process.

Step 5: Export Certificate ARN

Finally, we will export the ARN of the validated certificate so that it can be used in other parts of our infrastructure.

Key Points

• We use AWS ACM to request and manage SSL/TLS certificates.
• We use AWS Route 53 to create DNS records for domain validation.
• Pulumi automates the process of creating and validating the certificate.
• The program handles the asynchronous nature of the validation process using Pulumi’s Output and apply methods.

Conclusion

By using Pulumi to automate the process of validating ACM certificates using DNS, we can ensure that our certificates are always up-to-date and properly validated. This solution leverages the power of AWS ACM and Route 53, along with Pulumi’s automation capabilities, to simplify the management of SSL/TLS certificates.

Full Code Example

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

// Define the domain name
const domainName = "example.com";

// Request a new ACM certificate
const certificate = new aws.acm.Certificate("certificate", {
    domainName: domainName,
    validationMethod: "DNS",
});

// Retrieve the DNS validation options
const validationOptions = certificate.domainValidationOptions.apply(options => options[0]);

// Create a Route 53 DNS record for validation
const dnsRecord = new aws.route53.Record("dnsRecord", {
    name: validationOptions.resourceRecordName,
    zoneId: "<your-hosted-zone-id>", // Replace with your Route 53 hosted zone ID
    type: validationOptions.resourceRecordType,
    records: [validationOptions.resourceRecordValue],
    ttl: 60,
});

// Validate the ACM certificate
const certificateValidation = new aws.acm.CertificateValidation("certificateValidation", {
    certificateArn: certificate.arn,
    validationRecordFqdns: [dnsRecord.fqdn],
});

// Export the ARN of the validated certificate
export const certificateArn = certificateValidation.certificateArn;