From e1a666ff5e334942547fff9cccf3fc8b212e4c8c Mon Sep 17 00:00:00 2001
From: James Hochadel <james.hochadel@gsa.gov>
Date: Mon, 16 Dec 2024 20:15:52 -0500
Subject: [PATCH] Add DNS records for CSB documentation proxy

Related to: https://github.com/cloud-gov/product/issues/3216
---
 terraform/modules/environment_dns/dns.tf | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/terraform/modules/environment_dns/dns.tf b/terraform/modules/environment_dns/dns.tf
index a57f30612..25db60fa9 100644
--- a/terraform/modules/environment_dns/dns.tf
+++ b/terraform/modules/environment_dns/dns.tf
@@ -222,3 +222,19 @@ resource "aws_route53_record" "brokered_mail_ns" {
   ttl     = "30"
   records = aws_route53_zone.brokered_mail_zone.name_servers
 }
+
+locals {
+  csb_docproxy_subdomain_name  = "_acme-challenge.services.${var.domain}."
+  csb_docproxy_subdomain_value = "_acme-challenge.services.${var.domain}.external-domains-${var.stack_name}.${var.domain}."
+}
+
+// DNS records corresponding to the External Domain Service Instance
+// provisioned for the Cloud Service Broker documentation proxy.
+// Repo: https://github.com/cloud-gov/csb
+resource "aws_route53_record" "csb_docproxy" {
+  name    = local.csb_docproxy_subdomain_name
+  type    = "CNAME"
+  zone_id = var.zone_id
+
+  records = [local.csb_docproxy_subdomain_value]
+}