Add tiering policy for recovery vault backup

examples/recovery_vault/101-simple-asrv/configuration.tfvars

@@ -60,6 +60,11 @@ recovery_vaults = {
             weeks    = ["Last"]
             months   = ["January"]
           }
+          tiering_policy = {
+            mode = "TierAfter"
+            duration = 3
+            duration_type = "Weeks"
+          }          
         }
       }
 

modules/recovery_vault/backup_policies_vm.tf

@@ -60,4 +60,15 @@ resource "azurerm_backup_policy_vm" "vm" {
       months   = each.value.retention_yearly.months
     }
   }
+
+  dynamic "tiering_policy" {
+    for_each = lookup(each.value, "tiering_policy", null) == null ? [] : [1]
+    content {
+      archived_restore_point {
+        mode          = lookup(each.value.tiering_policy, "mode", null)
+        duration      = try(each.value.tiering_policy.duration, null)
+        duration_type = try(each.value.tiering_policy.type, null)
+      }
+    }
+  }
 }