update extra node pool's name suffix, use uuid() as random seed

Author: lonegunmanb

examples/multiple_node_pools/main.tf

@@ -38,6 +38,7 @@ locals {
       vm_size        = "Standard_D2s_v3"
       node_count     = 1
       vnet_subnet_id = azurerm_subnet.test.id
+      create_before_destroy = i % 2 == 0
     }
   }
 }

extra_node_pool.tf

@@ -7,7 +7,7 @@ resource "azurerm_kubernetes_cluster_node_pool" "node_pool_create_before_destroy
   for_each = local.node_pools_create_before_destroy
 
   kubernetes_cluster_id         = azurerm_kubernetes_cluster.main.id
-  name                          = "${each.value.name}${substr(md5(jsonencode(each.value)), 0, 4)}"
+  name                          = "${each.value.name}${substr(md5(uuid()), 0, 4)}"
   vm_size                       = each.value.vm_size
   capacity_reservation_group_id = each.value.capacity_reservation_group_id
   custom_ca_trust_enabled       = each.value.custom_ca_trust_enabled