From d8fc592fee9fe603bed97ea6caeda2285b2e5eda Mon Sep 17 00:00:00 2001
From: "Matthew C. Morgan" <matthew.c.morgan@census.gov>
Date: Mon, 29 Jul 2024 22:01:35 -0400
Subject: [PATCH] add subnet tags

---
 dns_zones.tf | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/dns_zones.tf b/dns_zones.tf
index 380900b..c54d080 100644
--- a/dns_zones.tf
+++ b/dns_zones.tf
@@ -136,6 +136,22 @@ resource "aws_vpc" "vpc" {
     { "Name" = "vpc0-dummy" },
   )
 }
+# Tag existing subnets for EKS
+# Container subnets under data.aws_subnets.container-subnets
+# Load Balance subnets under data.aws_subnets.lb-subnets
+resource "aws_ec2_tag" "container-subnets" {
+  for_each    = toset(data.aws_subnets.container-subnets.ids)
+  resource_id = each.value
+  key         = "kubernetes.io/cluster/${var.cluster_name}"
+  value       = "shared"
+}
+
+resource "aws_ec2_tag" "lb-subnets" {
+  for_each    = toset(data.aws_subnets.lb-subnets.ids)
+  resource_id = each.value
+  key         = "kubernetes.io/role/internal-nlb"
+  value       = "1"
+}
 
 #### This is the correct way, it's commented because
 #### the module is throwing an error on the for_each