use cross variable referencing

README.md

@@ -56,7 +56,7 @@ You need the following permissions to run this module.
 
 | Name | Version |
 |------|---------|
-| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.3.0 |
+| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.9.0 |
 | <a name="requirement_ibm"></a> [ibm](#requirement\_ibm) | >= 1.70.0, <2.0.0 |
 | <a name="requirement_time"></a> [time](#requirement\_time) | >= 0.9.1 |
 

examples/backup-restore/version.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = ">= 1.3.0"
+  required_version = ">= 1.9.0"
   required_providers {
     # Pin to the lowest provider version of the range defined in the main module's version.tf to ensure lowest version still works
     ibm = {

examples/basic/version.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = ">= 1.3.0"
+  required_version = ">= 1.9.0"
   required_providers {
     # Pin to the lowest provider version of the range defined in the main module's version.tf to ensure lowest version still works
     ibm = {

examples/complete/version.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = ">= 1.3.0"
+  required_version = ">= 1.9.0"
   required_providers {
     # Pin to the lowest provider version of the range defined in the main module's version.tf to ensure lowest version still works
     ibm = {

examples/fscloud/version.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = ">= 1.3.0"
+  required_version = ">= 1.9.0"
   required_providers {
     # Use latest version of provider in non-basic examples to verify latest version works with module
     ibm = {

main.tf

@@ -5,18 +5,6 @@
 # TODO: Replace with terraform cross variable validation: https://github.ibm.com/GoldenEye/issues/issues/10836
 ########################################################################################################################
 
-locals {
-  # Validation (approach based on https://github.com/hashicorp/terraform/issues/25609#issuecomment-1057614400)
-  # tflint-ignore: terraform_unused_declarations
-  validate_kms_values = var.use_ibm_owned_encryption_key && (var.kms_key_crn != null || var.backup_encryption_key_crn != null) ? tobool("When passing values for 'kms_key_crn' or 'backup_encryption_key_crn', you must set 'use_ibm_owned_encryption_key' to false. Otherwise unset them to use default encryption.") : true
-  # tflint-ignore: terraform_unused_declarations
-  validate_kms_vars = !var.use_ibm_owned_encryption_key && var.kms_key_crn == null ? tobool("When setting 'use_ibm_owned_encryption_key' to false, a value must be passed for 'kms_key_crn'.") : true
-  # tflint-ignore: terraform_unused_declarations
-  validate_backup_key = !var.use_ibm_owned_encryption_key && var.backup_encryption_key_crn != null && (var.use_default_backup_encryption_key || var.use_same_kms_key_for_backups) ? tobool("When passing a value for 'backup_encryption_key_crn' you cannot set 'use_default_backup_encryption_key' to true or 'use_ibm_owned_encryption_key' to false.") : true
-  # tflint-ignore: terraform_unused_declarations
-  validate_backup_key_2 = !var.use_ibm_owned_encryption_key && var.backup_encryption_key_crn == null && !var.use_same_kms_key_for_backups ? tobool("When 'use_same_kms_key_for_backups' is set to false, a value needs to be passed for 'backup_encryption_key_crn'.") : true
-}
-
 ########################################################################################################################
 # Locals
 ########################################################################################################################

modules/fscloud/README.md

@@ -13,7 +13,7 @@ The IBM Cloud Framework for Financial Services mandates the application of an in
 
 | Name | Version |
 |------|---------|
-| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.3.0 |
+| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.9.0 |
 | <a name="requirement_ibm"></a> [ibm](#requirement\_ibm) | >=1.70.0, <2.0.0 |
 
 ### Modules

modules/fscloud/version.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = ">= 1.3.0"
+  required_version = ">= 1.9.0"
   required_providers {
     # The below tflint-ignore is required because although the below provider is not directly required by this submodule,
     # it is required by consuming modules, and if not set here, the top level module calling this module will not be

solutions/standard/main.tf

@@ -16,13 +16,6 @@ module "resource_group" {
 # TODO: Replace with terraform cross variable validation: https://github.ibm.com/GoldenEye/issues/issues/10836
 #######################################################################################################################
 
-locals {
-  # tflint-ignore: terraform_unused_declarations
-  validate_kms_1 = var.existing_rabbitmq_instance_crn != null ? true : var.use_ibm_owned_encryption_key && (var.existing_kms_instance_crn != null || var.existing_kms_key_crn != null || var.existing_backup_kms_key_crn != null) ? tobool("When setting values for 'existing_kms_instance_crn', 'existing_kms_key_crn' or 'existing_backup_kms_key_crn', the 'use_ibm_owned_encryption_key' input must be set to false.") : true
-  # tflint-ignore: terraform_unused_declarations
-  validate_kms_2 = var.existing_rabbitmq_instance_crn != null ? true : !var.use_ibm_owned_encryption_key && (var.existing_kms_instance_crn == null && var.existing_kms_key_crn == null) ? tobool("When 'use_ibm_owned_encryption_key' is false, a value is required for either 'existing_kms_instance_crn' (to create a new key), or 'existing_kms_key_crn' to use an existing key.") : true
-}
-
 #######################################################################################################################
 # KMS encryption key
 #######################################################################################################################
@@ -253,10 +246,6 @@ module "rabbitmq_instance_crn_parser" {
 locals {
   existing_rabbitmq_guid   = var.existing_rabbitmq_instance_crn != null ? module.rabbitmq_instance_crn_parser[0].service_instance : null
   existing_rabbitmq_region = var.existing_rabbitmq_instance_crn != null ? module.rabbitmq_instance_crn_parser[0].region : null
-
-  # Validate the region input matches region detected in existing instance CRN (approach based on https://github.com/hashicorp/terraform/issues/25609#issuecomment-1057614400)
-  # tflint-ignore: terraform_unused_declarations
-  validate_existing_instance_region = var.existing_rabbitmq_instance_crn != null && var.region != local.existing_rabbitmq_region ? tobool("The region detected in the 'existing_rabbitmq_instance_crn' value must match the value of the 'region' input variable when passing an existing instance.") : true
 }
 
 # Do a data lookup on the resource GUID to get more info that is needed for the 'ibm_database' data lookup below
@@ -328,13 +317,6 @@ locals {
 
 locals {
   ## Variable validation (approach based on https://github.com/hashicorp/terraform/issues/25609#issuecomment-1057614400)
-  # tflint-ignore: terraform_unused_declarations
-  validate_sm_crn = length(local.service_credential_secrets) > 0 && var.existing_secrets_manager_instance_crn == null ? tobool("`existing_secrets_manager_instance_crn` is required when adding service credentials to a secrets manager secret.") : false
-  # tflint-ignore: terraform_unused_declarations
-  validate_sm_sg = var.existing_secrets_manager_instance_crn != null && var.admin_pass_secrets_manager_secret_group == null ? tobool("`admin_pass_secrets_manager_secret_group` is required when `existing_secrets_manager_instance_crn` is set.") : false
-  # tflint-ignore: terraform_unused_declarations
-  validate_sm_sn = var.existing_secrets_manager_instance_crn != null && var.admin_pass_secrets_manager_secret_name == null ? tobool("`admin_pass_secrets_manager_secret_name` is required when `existing_secrets_manager_instance_crn` is set.") : false
-
   create_sm_auth_policy = var.skip_rabbitmq_sm_auth_policy || var.existing_secrets_manager_instance_crn == null ? 0 : 1
 }
 

solutions/standard/variables.tf

@@ -34,6 +34,11 @@ variable "region" {
   description = "The region where you want to deploy your instance."
   type        = string
   default     = "us-south"
+
+  validation {
+    condition     = var.existing_rabbitmq_instance_crn != null && var.region != local.existing_rabbitmq_region ? false : true
+    error_message = "The region detected in the 'existing_rabbitmq_instance_crn' value must match the value of the 'region' input variable when passing an existing instance."
+  }
 }
 
 variable "rabbitmq_version" {
@@ -46,6 +51,18 @@ variable "existing_rabbitmq_instance_crn" {
   type        = string
   default     = null
   description = "The CRN of an existing Messages for RabbitMQ instance. If no value is specified, a new instance is created."
+
+  validation {
+    condition     = var.existing_rabbitmq_instance_crn != null ? true : var.use_ibm_owned_encryption_key && (var.existing_kms_instance_crn != null || var.existing_kms_key_crn != null || var.existing_backup_kms_key_crn != null) ? false : true
+    error_message = "When setting values for 'existing_kms_instance_crn', 'existing_kms_key_crn' or 'existing_backup_kms_key_crn', the 'use_ibm_owned_encryption_key' input must be set to false."
+  }
+
+  validation {
+    condition     = var.existing_rabbitmq_instance_crn != null ? true : !var.use_ibm_owned_encryption_key && (var.existing_kms_instance_crn == null && var.existing_kms_key_crn == null) ? false : true
+    error_message = "When 'use_ibm_owned_encryption_key' is false, a value is required for either 'existing_kms_instance_crn' (to create a new key), or 'existing_kms_key_crn' to use an existing key."
+  }
+
+
 }
 
 ##############################################################################
@@ -251,6 +268,21 @@ variable "existing_secrets_manager_instance_crn" {
   type        = string
   default     = null
   description = "The CRN of existing secrets manager to use to create service credential secrets for Databases for RabbitMQ instance."
+
+  validation {
+    condition     = var.existing_secrets_manager_instance_crn != null && var.admin_pass_secrets_manager_secret_group == null ? false : true
+    error_message = "`admin_pass_secrets_manager_secret_group` is required when `existing_secrets_manager_instance_crn` is set."
+  }
+
+  validation {
+    condition     = var.existing_secrets_manager_instance_crn != null && var.admin_pass_secrets_manager_secret_name == null ? false : true
+    error_message = "`admin_pass_secrets_manager_secret_name` is required when `existing_secrets_manager_instance_crn` is set."
+  }
+
+  validation {
+    condition     = length(var.service_credential_secrets) > 0 && var.existing_secrets_manager_instance_crn == null ? false : true
+    error_message = "`existing_secrets_manager_instance_crn` is required when adding service credentials to a secrets manager secret."
+  }
 }
 
 variable "existing_secrets_manager_endpoint_type" {

solutions/standard/version.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = ">= 1.3.0"
+  required_version = ">= 1.9.0"
   # Lock DA into an exact provider version - renovate automation will keep it updated
   required_providers {
     ibm = {

variables.tf

@@ -184,6 +184,26 @@ variable "use_ibm_owned_encryption_key" {
   type        = bool
   description = "IBM Cloud Databases will secure your deployment's data at rest automatically with an encryption key that IBM hold. Alternatively, you may select your own Key Management System instance and encryption key (Key Protect or Hyper Protect Crypto Services) by setting this to false. If setting to false, a value must be passed for the `kms_key_crn` input."
   default     = true
+
+  validation {
+    condition     = var.use_ibm_owned_encryption_key && (var.kms_key_crn != null || var.backup_encryption_key_crn != null) ? false : true
+    error_message = "When passing values for 'kms_key_crn' or 'backup_encryption_key_crn', you must set 'use_ibm_owned_encryption_key' to false. Otherwise unset them to use default encryption."
+  }
+
+  validation {
+    condition     = !var.use_ibm_owned_encryption_key && var.kms_key_crn == null ? false : true
+    error_message = "When setting 'use_ibm_owned_encryption_key' to false, a value must be passed for 'kms_key_crn'."
+  }
+
+  validation {
+    condition     = !var.use_ibm_owned_encryption_key && var.backup_encryption_key_crn != null && (var.use_default_backup_encryption_key || var.use_same_kms_key_for_backups) ? false : true
+    error_message = "When passing a value for 'backup_encryption_key_crn' you cannot set 'use_default_backup_encryption_key' to true or 'use_ibm_owned_encryption_key' to false."
+  }
+
+  validation {
+    condition     = !var.use_ibm_owned_encryption_key && var.backup_encryption_key_crn == null && !var.use_same_kms_key_for_backups ? false : true
+    error_message = "When 'use_same_kms_key_for_backups' is set to false, a value needs to be passed for 'backup_encryption_key_crn'."
+  }
 }
 
 variable "use_default_backup_encryption_key" {

version.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = ">= 1.3.0"
+  required_version = ">= 1.9.0"
   # Add any required providers below and uncomment
   required_providers {
     ibm = {