How do I add an A record in Route 53 to an ALB with an ACM certificate?

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

// Define the domain name
const domainName = "example.com";
const hostedZoneId = "Z3P5QSUBK4POTI"; // Replace with your Route 53 Hosted Zone ID

// Create an ACM Certificate
const certificate = new aws.acm.Certificate("cert", {
    domainName: domainName,
    validationMethod: "DNS",
    tags: {
        Name: "ACM Certificate for ALB",
    },
});

// Validate the certificate using DNS
const certValidation = new aws.route53.Record("certValidation", {
    name: certificate.domainValidationOptions[0].resourceRecordName,
    zoneId: hostedZoneId,
    type: certificate.domainValidationOptions[0].resourceRecordType,
    records: [certificate.domainValidationOptions[0].resourceRecordValue],
    ttl: 300,
});

// Create an ALB
const alb = new aws.lb.LoadBalancer("alb", {
    internal: false,
    loadBalancerType: "application",
    securityGroups: [], // Add your security groups here
    subnets: [], // Add your subnets here
    tags: {
        Name: "Pulumi ALB",
    },
});

// Create a target group
const targetGroup = new aws.lb.TargetGroup("targetGroup", {
    port: 80,
    protocol: "HTTP",
    vpcId: "vpc-12345678", // Replace with your VPC ID
    healthCheck: {
        path: "/",
        protocol: "HTTP",
    },
});

// Create a listener for the ALB
const listener = new aws.lb.Listener("listener", {
    loadBalancerArn: alb.arn,
    port: 443,
    protocol: "HTTPS",
    sslPolicy: "ELBSecurityPolicy-2016-08",
    certificateArn: certificate.arn,
    defaultActions: [{
        type: "forward",
        targetGroupArn: targetGroup.arn,
    }],
});

// Add an A record in Route 53 to point to the ALB
const aRecord = new aws.route53.Record("aRecord", {
    zoneId: hostedZoneId,
    name: domainName,
    type: "A",
    aliases: [{
        name: alb.dnsName,
        zoneId: alb.zoneId,
        evaluateTargetHealth: true,
    }],
});

// Export the ALB DNS name and the A record
export const albDnsName = alb.dnsName;
export const aRecordName = aRecord.name;