I'm deploying infrastructure on Azure using Terraform, I'm using modules for a linux scale set an a load balancer and using azurerm_lb_nat_pool in order to have SSH access to the VMs, I have a need now to retrieve the ports of the NAT rules for other purposes.

For the life of me I cannot find a way to retrieve them, went through all the terraform documentation and cannot find it under any data source or attribute reference.

Here is my LB code:

resource "azurerm_lb" "front-load-balancer" {
  name                = "front-load-balancer"
  location            = var.def-location
  resource_group_name = var.rg-name
  sku                 = "Standard"

  
  frontend_ip_configuration {
    name                 = "frontend-IP-configuration"
    public_ip_address_id = var.public-ip-id
  }
}

resource "azurerm_lb_nat_pool" "lb-nat-pool" {
  resource_group_name            = var.rg-name
  loadbalancer_id                = azurerm_lb.front-load-balancer.id
  name                           = "lb-nat-pool"
  protocol                       = "Tcp"
  frontend_port_start            = var.frontend-port-start
  frontend_port_end              = var.frontend-port-end
  backend_port                   = 22
  frontend_ip_configuration_name = "frontend-IP-configuration"
}

Any assistance would be very appreciated.

EDIT: I tried exporting the inbound_nat_rules export on the azurerm_lb frontend IP configuration, it gives a list of the resources which I do not currently know how to extract the ports from::

output "frontend-ip-confguration-inbound-nat-rules" {
  value = azurerm_lb.front-load-balancer.frontend_ip_configuration[*].inbound_nat_rules
}

Which results in this:

Changes to Outputs:
  + LB-frontend-IP-confguration-Inbound-nat-rules = [
      + [
          + "/subscriptions/XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX/resourceGroups/weight-tracker-stage-rg/providers/Microsoft.Network/loadBalancers/front-load-balancer/inboundNatRules/lb-nat-pool.3",
          + "/subscriptions/XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX/resourceGroups/weight-tracker-stage-rg/providers/Microsoft.Network/loadBalancers/front-load-balancer/inboundNatRules/lb-nat-pool.4",
          + "/subscriptions/XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX/resourceGroups/weight-tracker-stage-rg/providers/Microsoft.Network/loadBalancers/front-load-balancer/inboundNatRules/lb-nat-pool.6",
        ],
    ]