List of objects to named array

Terraform
1

I have created an module for Az NetApp Files setup, where we have defined list of objects.

This works as expected. But issue is when we create 3 SMB volumes it would be referenced as azurerm_netapp_volume.anf[0]… Later when we plan to delete an 2nd item from the list it would try to delete both 2nd item and 3rd item and then recreates.

Instead of index number can we use named index or map here, how to leverage that for list(objects)

variable "anf_volume" {
  default     = null
  description = "Az NetApp Volume"
  type = list(
    object(
      {
        name                       = string
        network_features           = string # Basic / Standard (Recommended)
        protocols                  = list(string)
        storage_quota_in_gb        = number # In GB, Min 100
        anf_cpool_name             = string #Note: Same as anf_cpool.name
        anf_cpool_service_level    = string #Note: Same as anf_cpool.service_level
        snapshot_directory_visible = bool
        snapshot_policy_name       = string # snapshot_pol_daily_to_monthly, snapshot_pol_daily_to_weekly
      }
    )
  )


  anf_volume = [
    {
      name = "hs-vol1-std"
      storage_quota_in_gb = 100 # Min 100
      protocols = ["CIFS"]
      network_features = "Standard"
      anf_cpool_name = "hs-tf-std-cpool"
      anf_cpool_service_level = "Standard"
      snapshot_directory_visible = false
      snapshot_policy_name = "snapshot_pol_daily_to_monthly"
    },
    {
      name = "hs-vol2-std"
      storage_quota_in_gb = 120 # Min 100
      protocols = ["CIFS"]
      network_features = "Standard"
      anf_cpool_name = "hs-tf-std-cpool"
      anf_cpool_service_level = "Standard"
      snapshot_directory_visible = false
      snapshot_policy_name = "snapshot_pol_daily_to_weekly"
    },
    {
      name = "hs-vol3-std-long-path-share-name"
      storage_quota_in_gb = 110 # Min 100
      protocols = ["CIFS"]
      network_features = "Standard"
      anf_cpool_name = "hs-tf-std-cpool"
      anf_cpool_service_level = "Standard"
      snapshot_directory_visible = true
      snapshot_policy_name = null
    }
]

//logic 


resource "azurerm_netapp_volume" "anf" {
  lifecycle {
    # prevent_destroy = true
    ignore_changes = [
      # Ignore changes to tags, e.g. because a management agent
      # updates these based on some ruleset managed elsewhere.
      tags,
      zone
    ]
  }

  for_each                   = { for idx, val in var.anf_volume : idx => val }
  name                       = each.value.name
  location                   = data.azurerm_resource_group.anf.location
  resource_group_name        = data.azurerm_resource_group.anf.name
  account_name               = azurerm_netapp_account.anf.name
  pool_name                  = each.value.anf_cpool_name
  volume_path                = each.value.name
  service_level              = each.value.anf_cpool_service_level
  subnet_id                  = data.azurerm_subnet.anf.id
  network_features           = each.value.network_features
  protocols                  = each.value.protocols
  storage_quota_in_gb        = each.value.storage_quota_in_gb
  snapshot_directory_visible = each.value.snapshot_directory_visible

  tags = var.default_tags

  dynamic "data_protection_snapshot_policy" {
    for_each = each.value.snapshot_policy_name != null ? [each.value.snapshot_policy_name] : []
    content {
      snapshot_policy_id = local.policy_lookup_table[data_protection_snapshot_policy.value].id
    }
  }

  depends_on = [ 
    azurerm_netapp_pool.anf, 
    azurerm_netapp_snapshot_policy.snapshot_pol_daily_to_weekly, 
    azurerm_netapp_snapshot_policy.snapshot_pol_daily_to_monthly 
  ]

}