feat: Add public and private and database tags per cidr

Author: kahirokunn

main.tf

@@ -377,7 +377,8 @@ resource "aws_subnet" "public" {
     },
     var.tags,
     var.public_subnet_tags,
-    lookup(var.public_subnet_tags_per_az, element(var.azs, count.index), {})
+    lookup(var.public_subnet_tags_per_az, element(var.azs, count.index), {}),
+    lookup(var.public_subnet_tags_per_cidr, element(concat(var.public_subnets, [""]), count.index), {})
   )
 }
 
@@ -405,7 +406,8 @@ resource "aws_subnet" "private" {
     },
     var.tags,
     var.private_subnet_tags,
-    lookup(var.private_subnet_tags_per_az, element(var.azs, count.index), {})
+    lookup(var.private_subnet_tags_per_az, element(var.azs, count.index), {}),
+    lookup(var.private_subnet_tags_per_cidr, var.private_subnets[count.index], {})
   )
 }
 
@@ -461,7 +463,8 @@ resource "aws_subnet" "database" {
     },
     var.tags,
     var.database_subnet_tags,
-    lookup(var.database_subnet_tags_per_az, element(var.azs, count.index), {})
+    lookup(var.database_subnet_tags_per_az, element(var.azs, count.index), {}),
+    lookup(var.database_subnet_tags_per_cidr, var.database_subnets[count.index])
   )
 }
 

variables.tf

@@ -492,6 +492,12 @@ variable "public_subnet_tags_per_az" {
   default     = {}
 }
 
+variable "public_subnet_tags_per_cidr" {
+  description = "Additional tags for the public subnets where the primary key is the CIDR"
+  type        = map(map(string))
+  default     = {}
+}
+
 variable "private_subnet_tags" {
   description = "Additional tags for the private subnets"
   type        = map(string)
@@ -504,6 +510,12 @@ variable "private_subnet_tags_per_az" {
   default     = {}
 }
 
+variable "private_subnet_tags_per_cidr" {
+  description = "Additional tags for the private subnets where the primary key is the CIDR"
+  type        = map(map(string))
+  default     = {}
+}
+
 variable "outpost_subnet_tags" {
   description = "Additional tags for the outpost subnets"
   type        = map(string)
@@ -564,6 +576,12 @@ variable "database_subnet_tags_per_az" {
   default     = {}
 }
 
+variable "database_subnet_tags_per_cidr" {
+  description = "Additional tags for the database subnets where the primary key is the CIDR"
+  type        = map(map(string))
+  default     = {}
+}
+
 variable "database_subnet_group_tags" {
   description = "Additional tags for the database subnet group"
   type        = map(string)