fix: add validation for resource group in a case existing SM CRN is not set (#113)

Author: akocbek

ibm_catalog.json

@@ -65,7 +65,8 @@
               "key": "use_existing_resource_group"
             },
             {
-              "key": "resource_group_name"
+              "key": "resource_group_name",
+              "required": true
             },
             {
               "custom_config": {

solutions/standard/main.tf

@@ -1,6 +1,10 @@
 ########################################################################################################################
 # Resource Group
 ########################################################################################################################
+locals {
+  # tflint-ignore: terraform_unused_declarations
+  validate_resource_group = (var.existing_secrets_manager_crn == null && var.resource_group_name == null) ? tobool("Resource group name can not be null if existing secrets manager CRN is not set.") : true
+}
 
 module "resource_group" {
   count                        = var.existing_secrets_manager_crn == null ? 1 : 0