updated custom tags for subnets

Author: manikanta-sadurla

.terraform.lock.hcl

@@ -162,7 +162,7 @@ locals {
 
 | Name | Version |
 |------|---------|
-| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.0, < 7.0 |
+| <a name="provider_aws"></a> [aws](#provider\_aws) | 5.100.0 |
 
 ## Modules
 
@@ -225,7 +225,9 @@ locals {
 | <a name="input_kms_config"></a> [kms\_config](#input\_kms\_config) | n/a | <pre>object({<br/>    deletion_window_in_days = number<br/>    enable_key_rotation     = bool<br/>  })</pre> | <pre>{<br/>  "deletion_window_in_days": 30,<br/>  "enable_key_rotation": true<br/>}</pre> | no |
 | <a name="input_name"></a> [name](#input\_name) | VPC name | `string` | n/a | yes |
 | <a name="input_namespace"></a> [namespace](#input\_namespace) | Namespace name | `string` | n/a | yes |
-| <a name="input_subnet_map"></a> [subnet\_map](#input\_subnet\_map) | A map defining the configuration of subnets, their attributes, and associated resources.<br/>Each subnet configuration can include the following details:<br/><br/>- **name**: Name of the subnet.<br/>- **cidr\_block**: CIDR block for the subnet.<br/>- **availability\_zone**: The availability zone where the subnet is located.<br/>- **enable\_resource\_name\_dns\_a\_record\_on\_launch**: Enable or disable DNS A records for EC2 instances launched in this subnet (default: false).<br/>- **enable\_resource\_name\_dns\_aaaa\_record\_on\_launch**: Enable or disable DNS AAAA records for EC2 instances launched in this subnet (default: false).<br/>- **map\_public\_ip\_on\_launch**: Specify whether to auto-assign a public IP for instances in this subnet (default: false).<br/>- **ipv6\_native**: Enable or disable native IPv6 support for the subnet (default: false).<br/>- **assign\_ipv6\_address\_on\_creation**: Whether to automatically assign an IPv6 address to instances launched in the subnet (default: false).<br/>- **ipv6\_cidr\_block**: The IPv6 CIDR block associated with the subnet (optional).<br/>- **enable\_dns64**: Enable or disable DNS64 in the subnet (default: false).<br/>- **nat\_gateway\_name**: Name of the NAT Gateway attached to the subnet (optional).<br/>- **create\_nat\_gateway**: Specify whether to create a NAT Gateway for the subnet (default: true).<br/>- **attach\_nat\_gateway**: Specify whether to attach an existing NAT Gateway to the subnet (default: false).<br/>- **attach\_internet\_gateway**: Specify whether to attach an Internet Gateway to the subnet (default: false).<br/>- **additional\_routes**: List of additional routes to be added to the subnet route table, typically to route traffic to other services like Transit Gateway. Each route includes:<br/>  - **type**: Type of resource (default: "transit-gateway").<br/>  - **id**: The ID of the route target (e.g., a Transit Gateway ID).<br/>  - **cidr\_block**: The destination CIDR block for the route.<br/>  - **destination\_ipv6\_cidr\_block**: The destination IPV6 CIDR block for the route. | <pre>map(object({<br/>    name                                           = string<br/>    cidr_block                                     = string<br/>    availability_zone                              = string<br/>    enable_resource_name_dns_a_record_on_launch    = optional(bool, false)<br/>    enable_resource_name_dns_aaaa_record_on_launch = optional(bool, false)<br/>    map_public_ip_on_launch                        = optional(bool, false)<br/>    ipv6_native                                    = optional(bool, false)<br/>    assign_ipv6_address_on_creation                = optional(bool, false)<br/>    ipv6_cidr_block                                = optional(string, null)<br/>    enable_dns64                                   = optional(bool, false)<br/>    nat_gateway_name                               = optional(string, null)<br/>    create_nat_gateway                             = optional(bool, true)<br/>    attach_nat_gateway                             = optional(bool, false)<br/>    attach_internet_gateway                        = optional(bool, false)<br/>    additional_routes = optional(list(object({<br/>      type                        = optional(string, "transit-gateway") // possible values : network-interface ,transit-gateway, vpc-endpoint, vpc-peering-connection<br/>      id                          = string<br/>      destination_cidr_block      = optional(string, null)<br/>      destination_ipv6_cidr_block = optional(string, null)<br/>      }<br/>    )), [])<br/>  }))</pre> | `null` | no |
+| <a name="input_private_subnet_tags"></a> [private\_subnet\_tags](#input\_private\_subnet\_tags) | (optional) Additional tags for auto-generated private subnets | `map(string)` | `{}` | no |
+| <a name="input_public_subnet_tags"></a> [public\_subnet\_tags](#input\_public\_subnet\_tags) | (optional) Additional tags for auto-generated public subnets | `map(string)` | `{}` | no |
+| <a name="input_subnet_map"></a> [subnet\_map](#input\_subnet\_map) | A map defining the configuration of subnets, their attributes, and associated resources.<br/>Each subnet configuration can include the following details:<br/><br/>- **name**: Name of the subnet.<br/>- **cidr\_block**: CIDR block for the subnet.<br/>- **availability\_zone**: The availability zone where the subnet is located.<br/>- **enable\_resource\_name\_dns\_a\_record\_on\_launch**: Enable or disable DNS A records for EC2 instances launched in this subnet (default: false).<br/>- **enable\_resource\_name\_dns\_aaaa\_record\_on\_launch**: Enable or disable DNS AAAA records for EC2 instances launched in this subnet (default: false).<br/>- **map\_public\_ip\_on\_launch**: Specify whether to auto-assign a public IP for instances in this subnet (default: false).<br/>- **ipv6\_native**: Enable or disable native IPv6 support for the subnet (default: false).<br/>- **assign\_ipv6\_address\_on\_creation**: Whether to automatically assign an IPv6 address to instances launched in the subnet (default: false).<br/>- **ipv6\_cidr\_block**: The IPv6 CIDR block associated with the subnet (optional).<br/>- **enable\_dns64**: Enable or disable DNS64 in the subnet (default: false).<br/>- **nat\_gateway\_name**: Name of the NAT Gateway attached to the subnet (optional).<br/>- **create\_nat\_gateway**: Specify whether to create a NAT Gateway for the subnet (default: true).<br/>- **attach\_nat\_gateway**: Specify whether to attach an existing NAT Gateway to the subnet (default: false).<br/>- **attach\_internet\_gateway**: Specify whether to attach an Internet Gateway to the subnet (default: false).<br/>- **additional\_routes**: List of additional routes to be added to the subnet route table, typically to route traffic to other services like Transit Gateway. Each route includes:<br/>  - **type**: Type of resource (default: "transit-gateway").<br/>  - **id**: The ID of the route target (e.g., a Transit Gateway ID).<br/>  - **cidr\_block**: The destination CIDR block for the route.<br/>  - **destination\_ipv6\_cidr\_block**: The destination IPV6 CIDR block for the route.<br/>- **tags**: Additional tags to apply to the subnet (default: {}). | <pre>map(object({<br/>    name                                           = string<br/>    cidr_block                                     = string<br/>    availability_zone                              = string<br/>    enable_resource_name_dns_a_record_on_launch    = optional(bool, false)<br/>    enable_resource_name_dns_aaaa_record_on_launch = optional(bool, false)<br/>    map_public_ip_on_launch                        = optional(bool, false)<br/>    ipv6_native                                    = optional(bool, false)<br/>    assign_ipv6_address_on_creation                = optional(bool, false)<br/>    ipv6_cidr_block                                = optional(string, null)<br/>    enable_dns64                                   = optional(bool, false)<br/>    nat_gateway_name                               = optional(string, null)<br/>    create_nat_gateway                             = optional(bool, true)<br/>    attach_nat_gateway                             = optional(bool, false)<br/>    attach_internet_gateway                        = optional(bool, false)<br/>    additional_routes = optional(list(object({<br/>      type                        = optional(string, "transit-gateway") // possible values : network-interface ,transit-gateway, vpc-endpoint, vpc-peering-connection<br/>      id                          = string<br/>      destination_cidr_block      = optional(string, null)<br/>      destination_ipv6_cidr_block = optional(string, null)<br/>      }<br/>    )), [])<br/>    tags = optional(map(string), {})<br/>  }))</pre> | `null` | no |
 | <a name="input_tags"></a> [tags](#input\_tags) | (optional) Tags for VPC resources | `map(string)` | `{}` | no |
 | <a name="input_vpc_endpoint_data"></a> [vpc\_endpoint\_data](#input\_vpc\_endpoint\_data) | (optional) List of VPC endpoints to be created | <pre>list(object({<br/>    service             = string<br/>    route_table_filter  = optional(string, "private") // possible values 'private' and 'public'<br/>    policy_doc          = optional(string, null)<br/>    private_dns_enabled = optional(bool, false)<br/>    security_group_ids  = optional(list(string), [])<br/>  }))</pre> | `[]` | no |
 | <a name="input_vpc_flow_log_config"></a> [vpc\_flow\_log\_config](#input\_vpc\_flow\_log\_config) | If `s3_bucket_arn` is null, only CloudWatch logging is enabled by default. If `s3_bucket_arn` is provided, S3 logging is enabled. | <pre>object({<br/>    enable            = bool<br/>    retention_in_days = number<br/>    s3_bucket_arn     = string<br/>  })</pre> | <pre>{<br/>  "enable": true,<br/>  "retention_in_days": 7,<br/>  "s3_bucket_arn": null<br/>}</pre> | no |
@@ -286,4 +288,4 @@ By specifying this , it will bump the version and if you dont specify this in yo
 
 ## Authors
 This project is authored by:
-- SourceFuse
+- SourceFuse

README.md

@@ -1,6 +1,6 @@
 locals {
 
-  prefix = "${var.namespace}-${var.environment}"
+  prefix = "${var.namespace}-${var.environment}-custom"
 
   subnet_map = {
     "${local.prefix}-public-az1" = {

examples/custom-subnets/local.tf

@@ -37,7 +37,7 @@ module "network" {
   namespace   = var.namespace
   environment = var.environment
 
-  name                    = "${var.namespace}-${var.environment}"
+  name                    = "${var.namespace}-${var.environment}-custom"
   create_internet_gateway = true
   subnet_map              = local.subnet_map
   cidr_block              = "10.0.0.0/16"

examples/custom-subnets/main.tf

@@ -24,6 +24,7 @@ locals {
     ipv6_cidr_block                                = null
     enable_dns64                                   = false
     additional_routes                              = []
+    tags                                           = var.public_subnet_tags
     }
   }
   private_subnet_data = { for idx, az in var.availability_zones : "${var.name}-private-${az}" => {
@@ -43,6 +44,7 @@ locals {
     ipv6_cidr_block                                = null
     enable_dns64                                   = false
     additional_routes                              = []
+    tags                                           = var.private_subnet_tags
     }
   }
 

locals-auto.tf

@@ -55,7 +55,8 @@ resource "aws_subnet" "this" {
     {
       Name = each.value.name
     },
-    var.tags
+    var.tags,
+    each.value.tags
   )
 }
 

main.tf

@@ -121,6 +121,7 @@ variable "subnet_map" {
       destination_ipv6_cidr_block = optional(string, null)
       }
     )), [])
+    tags = optional(map(string), {})
   }))
   default     = null
   description = <<-EOT
@@ -146,6 +147,7 @@ variable "subnet_map" {
       - **id**: The ID of the route target (e.g., a Transit Gateway ID).
       - **cidr_block**: The destination CIDR block for the route.
       - **destination_ipv6_cidr_block**: The destination IPV6 CIDR block for the route.
+    - **tags**: Additional tags to apply to the subnet (default: {}).
   EOT
 }
 
@@ -167,6 +169,18 @@ variable "availability_zones" {
   default     = []
 }
 
+variable "public_subnet_tags" {
+  type        = map(string)
+  description = "(optional) Additional tags for auto-generated public subnets"
+  default     = {}
+}
+
+variable "private_subnet_tags" {
+  type        = map(string)
+  description = "(optional) Additional tags for auto-generated private subnets"
+  default     = {}
+}
+
 variable "tags" {
   type        = map(string)
   description = "(optional) Tags for VPC resources"