From d022b2ab9cb8a0857d6aa9255fa24c707cf200a9 Mon Sep 17 00:00:00 2001
From: dahorak <dahorak@redhat.com>
Date: Fri, 8 Dec 2023 15:13:53 +0100
Subject: [PATCH] vSphere AI depl: create api and ingress records (#9021)

- update terroform scripts for deployment on vSphere via Assisted
  Installer to create API and Ingress DNS records

Signed-off-by: Daniel Horak <dahorak@redhat.com>
---
 terraform/ai/vsphere/main.tf                  | 27 +++++++++++++++++++
 terraform/ai/vsphere/terraform.tfvars.example |  9 +++++++
 terraform/ai/vsphere/variables.tf             | 18 +++++++++++++
 3 files changed, 54 insertions(+)

diff --git a/terraform/ai/vsphere/main.tf b/terraform/ai/vsphere/main.tf
index 55a3ad77d58..63dbb9920f2 100644
--- a/terraform/ai/vsphere/main.tf
+++ b/terraform/ai/vsphere/main.tf
@@ -3,6 +3,7 @@ locals {
   control_planes = [for idx in range(var.control_plane_count) : "${var.cluster_id}-control-plane-${idx}"]
   compute_nodes  = [for idx in range(var.compute_count) : "${var.cluster_id}-compute-${idx}"]
   guest_id       = "rhel8_64Guest"
+  dns_zone_id    = one(data.aws_route53_zone.dns_zone[*].zone_id)
 }
 
 // configure connection to vSphere
@@ -37,6 +38,32 @@ data "vsphere_network" "network" {
   distributed_virtual_switch_uuid = ""
 }
 
+// get DNS zone for creating API and Ingress A records
+data "aws_route53_zone" "dns_zone" {
+  count = var.base_domain != null ? 1 : 0
+  name  = var.base_domain
+}
+
+// create DNS A record for API (only if api_ip is defined)
+resource "aws_route53_record" "api_a_record" {
+  count   = var.api_ip != null ? 1 : 0
+  type    = "A"
+  ttl     = "60"
+  zone_id = local.dns_zone_id
+  name    = "api.${var.cluster_id}.${var.base_domain}"
+  records = [var.api_ip]
+}
+
+// create DNS A record for Ingress (only if ingress_ip is defined)
+resource "aws_route53_record" "ingress_a_record" {
+  count   = var.ingress_ip != null ? 1 : 0
+  type    = "A"
+  ttl     = "60"
+  zone_id = local.dns_zone_id
+  name    = "*.apps.${var.cluster_id}.${var.base_domain}"
+  records = [var.ingress_ip]
+}
+
 // create Resource Pool for VMs
 resource "vsphere_resource_pool" "resource_pool" {
   name                    = var.cluster_id
diff --git a/terraform/ai/vsphere/terraform.tfvars.example b/terraform/ai/vsphere/terraform.tfvars.example
index 788e38bb7ee..cfd9d2024bf 100644
--- a/terraform/ai/vsphere/terraform.tfvars.example
+++ b/terraform/ai/vsphere/terraform.tfvars.example
@@ -56,3 +56,12 @@ compute_data_disks_count = "2"
 // The size of data disks for Compute VMs, in GB.
 // Default 256 GB.
 compute_data_disks_size = "256"
+
+// Base DNS domain, where should be the cluster records created
+// base_domain = "example.com"
+
+// API IP address, if not defined no DNS record is created
+// api_ip = "192.0.2.2"
+
+// Ingress IP address, if not defined no DNS record is created
+// ingress_ip = "192.0.2.3"
diff --git a/terraform/ai/vsphere/variables.tf b/terraform/ai/vsphere/variables.tf
index 435916c884f..467ad6ef117 100644
--- a/terraform/ai/vsphere/variables.tf
+++ b/terraform/ai/vsphere/variables.tf
@@ -58,6 +58,24 @@ variable "system_disk_size" {
   default = "120"
 }
 
+variable "base_domain" {
+  type        = string
+  default     = null
+  description = "Base DNS domain, where should be the cluster records created"
+}
+
+variable "api_ip" {
+  type        = string
+  default     = null
+  description = "API IP address, if not defined DNS record is not created"
+}
+
+variable "ingress_ip" {
+  type        = string
+  default     = null
+  description = "Ingress IP address, if not defined DNS record is not created"
+}
+
 ///////////
 // control-plane machine variables
 ///////////