feat: *improved user experience for validating input variable values<br>* updated required terraform to be >= 1.9.0 (#675)

* used cross-object referencing for input variable validation

* updated version

---------

Co-authored-by: Aatreyee Mukherjee <[email protected]>

Author: aatreyee2506

README.md

@@ -63,7 +63,7 @@ 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) | >= 1.69.0, < 2.0.0 |
 
 ### Modules

examples/basic/version.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = ">= 1.3.0"
+  required_version = ">= 1.9.0"
   required_providers {
     # Ensure that there is always 1 example locked into the lowest provider version of the range defined in the main
     # module's version.tf (basic example), and 1 example that will always use the latest provider version (complete example).

examples/complete/version.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = ">= 1.0.0"
+  required_version = ">= 1.9.0"
   required_providers {
     # Ensure that there is always 1 example locked into the lowest provider version of the range defined in the main
     # module's version.tf (basic example), and 1 example that will always use the latest provider version (complete example).

main.tf

@@ -35,8 +35,6 @@ resource "ibm_kms_key_policies" "standard_key_policy" {
 }
 
 locals {
-  # tflint-ignore: terraform_unused_declarations
-  kmip_root_key_validation = (length(var.kmip) > 0 && var.standard_key) ? tobool("When providing a value for `kmip`, the key being created must be a root key.") : true
 
   # for-each for adapter resource
   adapter_map = {

variables.tf

@@ -93,4 +93,9 @@ variable "kmip" {
     ])
     error_message = "Each adapter can contain up to 200 certificates, current length exceeds this limit."
   }
+
+  validation {
+    condition     = length(var.kmip) == 0 || !var.standard_key
+    error_message = "When providing a value for `kmip`, the key being created must be a root key."
+  }
 }

version.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = ">= 1.3.0"
+  required_version = ">= 1.9.0"
   required_providers {
     ibm = {
       source = "IBM-Cloud/ibm"