feat: add subscription_tags_ignored variable

README.md

@@ -652,6 +652,24 @@ Type: `map(string)`
 
 Default: `{}`
 
+### <a name="input_subscription_tags_ignored"></a> [subscription\_tags_ignored](#input\_subscription\_tags_ignored)
+
+Drescription: A list of tags to ignore changes on when updating the subscription.
+
+Example value:
+
+```terraform
+subscription_tags_ignored = [
+  tags["mytag"],
+  tags["mytag2"],
+  tags["mytag3"]
+]
+```
+
+Type: `list(string)`
+
+Default: `[]`
+
 ### <a name="input_subscription_update_existing"></a> [subscription\_update\_existing](#input\_subscription\_update\_existing)
 
 Description: Whether to update an existing subscription with the supplied tags and display name.  

main.subscription.tf

@@ -13,6 +13,7 @@ module "subscription" {
   subscription_management_group_association_enabled    = var.subscription_management_group_association_enabled
   subscription_management_group_id                     = var.subscription_management_group_id
   subscription_tags                                    = var.subscription_tags
+  subscription_tags_ignored                            = var.subscription_tags_ignored
   subscription_use_azapi                               = var.subscription_use_azapi
   subscription_update_existing                         = var.subscription_update_existing
   subscription_workload                                = var.subscription_workload

modules/subscription/README.md

@@ -173,6 +173,24 @@ Type: `map(string)`
 
 Default: `{}`
 
+### <a name="input_subscription_tags_ignored"></a> [subscription\_tags_ignored](#input\_subscription\_tags_ignored)
+
+Drescription: A list of tags to ignore changes on when updating the subscription.
+
+Example value:
+
+```terraform
+subscription_tags_ignored = [
+  tags["mytag"],
+  tags["mytag2"],
+  tags["mytag3"]
+]
+```
+
+Type: `list(string)`
+
+Default: `[]`
+
 ### <a name="input_subscription_update_existing"></a> [subscription\_update\_existing](#input\_subscription\_update\_existing)
 
 Description: Whether to update an existing subscription with the supplied tags and display name.  

modules/subscription/main.tf

@@ -6,6 +6,10 @@ resource "azurerm_subscription" "this" {
   billing_scope_id  = var.subscription_billing_scope
   workload          = var.subscription_workload
   tags              = var.subscription_tags
+
+  lifecycle {
+    ignore_changes = var.subscription_tags_ignored
+  }
 }
 
 # This resource ensures that we can manage the management group for the subscription

modules/subscription/variables.tf

@@ -168,6 +168,24 @@ DESCRIPTION
   }
 }
 
+variable "subscription_tags_ignored" {
+  type        = list(string)
+  default     = []
+  description = <<DESCRIPTION
+A list of tags to ignore changes on when updating the subscription.
+
+Example value:
+
+```terraform
+subscription_tags_ignored = [
+  tags["mytag"],
+  tags["mytag2"],
+  tags["mytag3"]
+]
+```
+DESCRIPTION
+}
+
 variable "subscription_use_azapi" {
   type        = bool
   default     = false

variables.subscription.tf

@@ -156,6 +156,24 @@ DESCRIPTION
   default     = {}
 }
 
+variable "subscription_tags_ignored" {
+  type        = list(string)
+  default     = []
+  description = <<DESCRIPTION
+A list of tags to ignore changes on when updating the subscription.
+
+Example value:
+
+```terraform
+subscription_tags_ignored = [
+  tags["mytag",
+  tags["mytag2"],
+  tags["mytag3"]
+]
+```
+DESCRIPTION
+}
+
 variable "subscription_use_azapi" {
   type        = bool
   default     = false