Possible regression on resource azurerm_lb with plugin 1.8

[jcmaasb]

I use this simple code in a module.
With plugin 1.7 it works fine, but with plugin 1.8 it generates this error if you set private_ip_address_allocation to dynamic and leave private_ip_address empty ("").

Error: module.ambari_MN.azurerm_lb.lb_private: "frontend_ip_configuration.0.private_ip_address" is not a valid IP4 address: ""

locals {
  lb_private_ip_address_allocation = "dynamic"
  lb_private_ip_address            = ""
  ...
}

resource "azurerm_lb" "lb_private" {
  count               = "${local.instances}"
  resource_group_name = "${local.rg_name}"
  name                = "lb_${local.name}"
  location            = "${local.location}"
  sku                 = "${local.lb_sku}"

  frontend_ip_configuration {
    name                          = "${local.private_frontend_ip_conf_name}"
    private_ip_address_allocation = "${local.lb_private_ip_address_allocation}"
    private_ip_address            = "${local.lb_private_ip_address}"
    subnet_id                     = "${data.azurerm_subnet.lb_snet.id}"
  }
}

My question is whether this situation is final with the plugin1.8 (and I need to duplicate the code once more) or if it is a regression.

Thanks

[tombuildsstuff]

hey @jcmaasb

Thanks for opening this issue :)

That appears to be a regression in v1.8 of the AzureRM Provider, since it should be possible to set this value to an empty string. We’ll include a fix for this in the next release of the AzureRM provider - apologies for the inconvenience here!

Thanks!

[jcmaasb]

Thank you very much for your quick reply!

[alambike]

I think we have similar problem with subnet_id not specified in fronted_ip_configuration using Azurerm loadbalancer module:

$ terraform plan                                                                                                                          1 ↵

Error: module.loadbalancer.azurerm_lb.azlb: Can not parse "frontend_ip_configuration.0.subnet_id" as a resource id: Cannot parse Azure ID: parse 0: invalid URI for request

$ terraform version                                                                                                                       1 ↵
Terraform v0.11.7
+ provider.azurerm v1.9.0

[tombuildsstuff]

@alambike thanks for the heads up - I've opened #1588 which includes a fix for this.

[ghost]

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