Add Configurable Inputs and Outputs to Enhance Flexibility (#5)

* Add `name` input variable

Signed-off-by: Roman Schwarz <[email protected]>

* Add `name_suffix` input variable

Signed-off-by: Roman Schwarz <[email protected]>

* Add `key_vault_virtual_network_subnet_ids` input variable

Signed-off-by: Roman Schwarz <[email protected]>

* Add outputs

- `key_vault_private_endpoint_private_ip_address`
- `network_security_group_id`
- `network_security_group_name`

Signed-off-by: Roman Schwarz <[email protected]>

* Fix resource name suffix to prevent trailing hyphen

Ensures that when name_suffix is not set, the resource name does not end with a trailing -.

Signed-off-by: Roman Schwarz <[email protected]>

---------

Signed-off-by: Roman Schwarz <[email protected]>

Author: rswrz

README.md

@@ -173,6 +173,32 @@ Type: `list(string)`
 
 Default: `[]`
 
+### <a name="input_key_vault_virtual_network_subnet_ids"></a> [key\_vault\_virtual\_network\_subnet\_ids](#input\_key\_vault\_virtual\_network\_subnet\_ids)
+
+Description: A list of Subnet IDs that are allowed to access the Key Vault used by the Launchpad.
+
+Type: `list(string)`
+
+Default: `[]`
+
+### <a name="input_name"></a> [name](#input\_name)
+
+Description: The base name applied to all resources created by this module.
+
+Type: `string`
+
+Default: `"launchpad"`
+
+### <a name="input_name_suffix"></a> [name\_suffix](#input\_name\_suffix)
+
+Description: An optional suffix appended to the base name for all resources created by this module.
+
+**NOTE**: This suffix is not applied to resources that use a randomly generated suffix (e.g., Key Vault and Storage Account).
+
+Type: `string`
+
+Default: `null`
+
 ### <a name="input_runner_arch"></a> [runner\_arch](#input\_runner\_arch)
 
 Description: The CPU architecture to run the GitHub actions runner. Can be `x64` or `arm64`.
@@ -268,6 +294,18 @@ Description: The storage account name used by the Launchpad for the Terraform st
 
 Description: The tenant ID of the Azure user identity assigned to the Launchpad
 
+### <a name="output_key_vault_private_endpoint_private_ip_address"></a> [key\_vault\_private\_endpoint\_private\_ip\_address](#output\_key\_vault\_private\_endpoint\_private\_ip\_address)
+
+Description: The private IP address of the private endpoint used by the Key Vault.
+
+### <a name="output_network_security_group_id"></a> [network\_security\_group\_id](#output\_network\_security\_group\_id)
+
+Description: The ID of the Azure Network Security Group (NSG) associated with the Launchpad.
+
+### <a name="output_network_security_group_name"></a> [network\_security\_group\_name](#output\_network\_security\_group\_name)
+
+Description: The name of the Azure Network Security Group (NSG) associated with the Launchpad.
+
 ### <a name="output_subnet_id"></a> [subnet\_id](#output\_subnet\_id)
 
 Description: The ID of the subnet within the Virtual Network, associated with the Launchpad production environment.

outputs.tf

@@ -13,6 +13,21 @@ output "LAUNCHPAD_AZURE_TENANT_ID" {
   description = "The tenant ID of the Azure user identity assigned to the Launchpad"
 }
 
+output "key_vault_private_endpoint_private_ip_address" {
+  value       = one(azurerm_private_endpoint.key_vault.private_service_connection[*].private_ip_address)
+  description = "The private IP address of the private endpoint used by the Key Vault."
+}
+
+output "network_security_group_id" {
+  value       = azurerm_network_security_group.this.id
+  description = "The ID of the Azure Network Security Group (NSG) associated with the Launchpad."
+}
+
+output "network_security_group_name" {
+  value       = azurerm_network_security_group.this.name
+  description = "The name of the Azure Network Security Group (NSG) associated with the Launchpad."
+}
+
 output "subnet_id" {
   value       = azurerm_subnet.this.id
   description = "The ID of the subnet within the Virtual Network, associated with the Launchpad production environment."

r-identity.tf

@@ -1,5 +1,5 @@
 resource "azurerm_user_assigned_identity" "this" {
-  name                = "id-launchpad-prd-${local.location_short[var.location]}"
+  name                = join("-", compact(["id", var.name, "prd", local.location_short[var.location], var.name_suffix]))
   location            = var.location
   resource_group_name = var.resource_group_name
   tags                = var.tags

r-key-vault.tf

@@ -4,8 +4,12 @@ resource "random_string" "kvlaunchpadprd_suffix" {
   upper   = false
 }
 
+locals {
+  key_vault_private_link_enabled = length((var.key_vault_virtual_network_subnet_ids)) > 0
+}
+
 resource "azurerm_key_vault" "this" {
-  name                = "kvlaunchpadprd${local.location_short[var.location]}${random_string.kvlaunchpadprd_suffix.result}"
+  name                = join("", compact(["kv", var.name, "prd", local.location_short[var.location], random_string.kvlaunchpadprd_suffix.result]))
   location            = var.location
   resource_group_name = var.resource_group_name
   tags                = var.tags
@@ -19,14 +23,15 @@ resource "azurerm_key_vault" "this" {
   soft_delete_retention_days    = 30
 
   network_acls {
-    default_action = "Deny"
-    bypass         = "None"
-    ip_rules       = var.init ? [var.init_access_ip_address] : []
+    bypass                     = local.key_vault_private_link_enabled ? "AzureServices" : "None"
+    default_action             = "Deny"
+    ip_rules                   = var.init ? [var.init_access_ip_address] : []
+    virtual_network_subnet_ids = local.key_vault_private_link_enabled ? var.key_vault_virtual_network_subnet_ids : null
   }
 }
 
 resource "azurerm_private_endpoint" "key_vault" {
-  name                = "pe-${azurerm_key_vault.this.name}-prd-${local.location_short[var.location]}"
+  name                = join("-", compact(["pe", azurerm_key_vault.this.name, "prd", local.location_short[var.location], var.name_suffix]))
   location            = var.location
   resource_group_name = var.resource_group_name
   tags                = var.tags

r-network.tf

@@ -1,5 +1,5 @@
 resource "azurerm_virtual_network" "this" {
-  name                = "vnet-launchpad-prd-${local.location_short[var.location]}"
+  name                = join("-", compact(["vnet", var.name, "prd", local.location_short[var.location], var.name_suffix]))
   resource_group_name = var.resource_group_name
   location            = var.location
   tags                = var.tags
@@ -9,14 +9,14 @@ resource "azurerm_virtual_network" "this" {
 
 
 resource "azurerm_subnet" "this" {
-  name                 = "snet-launchpad-prd-${local.location_short[var.location]}"
+  name                 = join("-", compact(["snet", var.name, "prd", local.location_short[var.location], var.name_suffix]))
   resource_group_name  = var.resource_group_name
   virtual_network_name = azurerm_virtual_network.this.name
   address_prefixes     = var.subnet_address_prefixes
 }
 
 resource "azurerm_network_security_group" "this" {
-  name                = "nsg-launchpad-prd-${local.location_short[var.location]}"
+  name                = join("-", compact(["nsg", var.name, "prd", local.location_short[var.location], var.name_suffix]))
   location            = var.location
   resource_group_name = var.resource_group_name
   tags                = var.tags

r-storage-account.tf

@@ -13,7 +13,7 @@ resource "azurerm_management_lock" "storage_account_lock" {
 }
 
 resource "azurerm_storage_account" "this" {
-  name                = "stlaunchpadprd${local.location_short[var.location]}${random_string.stlaunchpadprd_suffix.result}"
+  name                = join("", compact(["st", var.name, "prd", local.location_short[var.location], random_string.stlaunchpadprd_suffix.result]))
   location            = var.location
   resource_group_name = var.resource_group_name
   tags                = var.tags
@@ -58,7 +58,7 @@ resource "azurerm_storage_container" "this" {
 }
 
 resource "azurerm_private_endpoint" "storage_account" {
-  name                = "pe-${azurerm_storage_account.this.name}-prd-${local.location_short[var.location]}"
+  name                = join("-", compact(["pe", azurerm_storage_account.this.name, "prd", local.location_short[var.location], var.name_suffix]))
   location            = var.location
   resource_group_name = var.resource_group_name
   tags                = var.tags

r-virtual-machine-scale-set.tf

@@ -16,14 +16,14 @@ locals {
 }
 
 resource "azurerm_linux_virtual_machine_scale_set" "this" {
-  name                = "vmss-launchpad-prd-${local.location_short[var.location]}"
+  name                = join("-", compact(["vmss", var.name, "prd", local.location_short[var.location], var.name_suffix]))
   location            = var.location
   resource_group_name = var.resource_group_name
   tags                = var.tags
 
   admin_password                  = random_password.virtual_machine_scale_set_admin_password.result
   admin_username                  = local.admin_username
-  computer_name_prefix            = "vm-launchpad"
+  computer_name_prefix            = "vm-${var.name}"
   disable_password_authentication = false
   instances                       = var.runner_vm_instances
   sku                             = "Standard_D2plds_v5"

variables.tf

@@ -26,6 +26,12 @@ variable "key_vault_private_dns_zone_ids" {
   description = "A list of ID´s of DNS Zones in order to add the Private Endpoint of the Keyvault into your DNS Zones."
 }
 
+variable "key_vault_virtual_network_subnet_ids" {
+  type        = list(string)
+  description = "A list of Subnet IDs that are allowed to access the Key Vault used by the Launchpad."
+  default     = []
+}
+
 variable "location" {
   type        = string
   description = "The geographic location where the resources will be deployed. This is must be a region name supported by Azure."
@@ -36,6 +42,22 @@ variable "management_group_names" {
   description = "A list of management group in order the Launchpad gets Owner-permission in these management-groups."
 }
 
+variable "name" {
+  type        = string
+  description = "The base name applied to all resources created by this module."
+  default     = "launchpad"
+}
+
+variable "name_suffix" {
+  type        = string
+  description = <<-EOD
+    An optional suffix appended to the base name for all resources created by this module.
+
+    **NOTE**: This suffix is not applied to resources that use a randomly generated suffix (e.g., Key Vault and Storage Account).
+  EOD
+  default     = null
+}
+
 variable "resource_group_name" {
   description = "The name of the resource group in which the virtual machine should exist. Changing this forces a new resource to be created."
   type        = string