### Terraform Version ```shell Terraform v1.15.0 on windows_amd64 + provider registry.terraform.io/azure/alz v0.20.2 + provider registry.terraform.io/azure/azapi v2.9.0 + provider registry.terraform.io/azure/modtm v0.3.5 + provider registry.terraform.io/hashicorp/azurerm v4.70.0 + provider registry.terraform.io/hashicorp/local v2.8.0 + provider registry.terraform.io/hashicorp/random v3.8.1 + provider registry.terraform.io/hashicorp/time v0.13.1 ``` ### Terraform Configuration Files ```terraform variable "required_subscription_keys" { description = "The list of subscription keys that are required to have valid GUIDs. Keys not in this list may be null or empty." type = list(string) default = ["connectivity", "management"] nullable = false } variable "subscription_ids" { description = "The list of subscription IDs to deploy the Platform Landing Zones into" type = map(string) default = {} nullable = false validation { condition = length(var.subscription_ids) == 0 || alltrue([for key, id in var.subscription_ids : contains(var.required_subscription_keys, key) ? can(regex("^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12})$", id)) : (id == null || id == "" || can(regex("^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12})$", id)))]) error_message = "Required subscription IDs must be valid GUIDs. Optional subscription IDs must be valid GUIDs, null, or empty." } validation { condition = length(var.subscription_ids) == 0 || alltrue([for id in keys(var.subscription_ids) : contains(["management", "connectivity", "identity", "security"], id)]) error_message = "The keys of the subscription_ids map must be one of 'management', 'connectivity', 'identity' or 'security'" } validation { condition = alltrue([for key in var.required_subscription_keys : contains(keys(var.subscription_ids), key)]) error_message = "All required subscription keys must be present in subscription_ids." } } ``` ### Debug Output ``` ╷ │ Error: Reference to uninitialized variable │ │ on variables.tf line 45, in variable "subscription_ids": │ 45: condition = length(var.subscription_ids) == 0 || alltrue([for key, id in var.subscription_ids : contains(var.required_subscription_keys, key) ? can(regex("^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12})$", id)) : (id == null || id == "" || can(regex("^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12})$", id)))]) │ │ The variable var.required_subscription_keys was not processed by the most recent operation, this likely means the previous operation either failed or was incomplete due to targeting. ╵ ╷ │ Error: Reference to uninitialized variable │ │ on variables.tf line 53, in variable "subscription_ids": │ 53: condition = alltrue([for key in var.required_subscription_keys : contains(keys(var.subscription_ids), key)]) │ │ The variable var.required_subscription_keys was not processed by the most recent operation, this likely means the previous operation either failed or was incomplete due to targeting. ╵ ``` ### Expected Behavior There was no error with versions prior to `1.15.0`. ### Actual Behavior Fails with `1.15.0` ### Steps to Reproduce 1. `terraform init` ### Additional Context Spotted in https://github.com/Azure/alz-terraform-accelerator ### References _No response_ ### Generative AI / LLM assisted development? _No response_