Fix problem propagating the "product_version" attribute

modules/build_host/main.tf

@@ -17,6 +17,7 @@ module "build_host" {
   connect_to_additional_network = true
   roles                         = ["build_host"]
   disable_firewall              = var.disable_firewall
+  product_version               = var.product_version
   grains = {
     mirror                 = var.base_configuration["mirror"]
     server                 = var.server_configuration["hostname"]

modules/host/main.tf

@@ -25,6 +25,7 @@ module "host" {
   additional_disk_size          = var.additional_disk_size
   second_additional_disk_size   = var.second_additional_disk_size
   volume_provider_settings      = var.volume_provider_settings
+  product_version               = var.product_version
 
   grains = merge({ disable_firewall = var.disable_firewall },
   var.grains)

modules/server/main.tf

@@ -45,6 +45,7 @@ module "server" {
   additional_disk_size          = var.repository_disk_size
   second_additional_disk_size   = var.database_disk_size
   volume_provider_settings      = var.volume_provider_settings
+  product_version               = var.product_version
 
   grains = {
     cc_username            = var.base_configuration["cc_username"]

modules/sshminion/main.tf

@@ -17,6 +17,7 @@ module "sshminion" {
   connect_to_additional_network = false
   roles                         = ["sshminion"]
   disable_firewall              = var.disable_firewall
+  product_version               = var.product_version
   grains = {
     mirror                 = var.base_configuration["mirror"]
     auto_connect_to_master = var.auto_connect_to_master