fix: missing hosted zone record with alias to cloudfront (#42)

When a domain name is specified, the hosted zone needs an A/AAAA record that points to the cloudfront distribution. Add that.

Resolves cdklabs/construct-hub-ops#17

.projen/deps.json

@@ -135,6 +135,11 @@
       "version": "^1.100.0",
       "type": "peer"
     },
+    {
+      "name": "@aws-cdk/aws-route53-targets",
+      "version": "^1.100.0",
+      "type": "peer"
+    },
     {
       "name": "@aws-cdk/aws-route53",
       "version": "^1.100.0",
@@ -200,6 +205,11 @@
       "version": "^1.100.0",
       "type": "runtime"
     },
+    {
+      "name": "@aws-cdk/aws-route53-targets",
+      "version": "^1.100.0",
+      "type": "runtime"
+    },
     {
       "name": "@aws-cdk/aws-route53",
       "version": "^1.100.0",

.projenrc.js

@@ -32,6 +32,7 @@ const project = new AwsCdkConstructLibrary({
     '@aws-cdk/aws-cloudwatch',
     '@aws-cdk/aws-certificatemanager',
     '@aws-cdk/aws-route53',
+    '@aws-cdk/aws-route53-targets',
     '@aws-cdk/aws-lambda',
     '@aws-cdk/aws-s3',
     '@aws-cdk/aws-s3-deployment',

src/webapp/index.ts

@@ -1,6 +1,8 @@
 import * as path from 'path';
 import * as cloudfront from '@aws-cdk/aws-cloudfront';
 import * as origins from '@aws-cdk/aws-cloudfront-origins';
+import * as r53 from '@aws-cdk/aws-route53';
+import * as r53targets from '@aws-cdk/aws-route53-targets';
 import * as s3 from '@aws-cdk/aws-s3';
 import * as s3deploy from '@aws-cdk/aws-s3-deployment';
 import { CfnOutput, Construct } from '@aws-cdk/core';
@@ -29,6 +31,23 @@ export class WebApp extends Construct {
       defaultRootObject: 'index.html',
     });
 
+    // if we use a domain, and A records with a CloudFront alias
+    if (props.domain) {
+      // IPv4
+      new r53.ARecord(this, 'ARecord', {
+        zone: props.domain.zone,
+        target: r53.RecordTarget.fromAlias(new r53targets.CloudFrontTarget(this.distribution)),
+        comment: 'Created by the AWS CDK',
+      });
+
+      // IPv6
+      new r53.AaaaRecord(this, 'AaaaRecord', {
+        zone: props.domain.zone,
+        target: r53.RecordTarget.fromAlias(new r53targets.CloudFrontTarget(this.distribution)),
+        comment: 'Created by the AWS CDK',
+      });
+    }
+
     // since `construct-hub-web` does not have an index file, we need to resolve
     // a specific file inside the module.
     const webappDir = path.join(__dirname, '..', '..', 'website');