Cannot change route from VirtualAppliance to None

[glenjamin]

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Terraform Version

Terraform v0.11.7
+ provider.azurerm v1.6.0

Affected Resource(s)

• azurerm_route_table

Terraform Configuration Files

Before

resource "azurerm_route_table" "primary" {
  name                = "primary"
  location            = "${azurerm_resource_group.routes.location}"
  resource_group_name = "${azurerm_resource_group.routes.name}"

  route {
    name                   = "UDR_to_InternetProxy"
    address_prefix         = "0.0.0.0/0"
    next_hop_type          = "VirtualAppliance"
    next_hop_in_ip_address = "192.168.0.1"
  }
}

After

resource "azurerm_route_table" "primary" {
  name                = "primary"
  location            = "${azurerm_resource_group.routes.location}"
  resource_group_name = "${azurerm_resource_group.routes.name}"

  route {
    name           = "UDR_BlackHole"
    address_prefix = "0.0.0.0/0"
    next_hop_type  = "None"
  }
}

Expected Behavior

Route is updated

Actual Behavior

1 error(s) occurred:

* azurerm_route_table.primary: 1 error(s) occurred:

* azurerm_route_table.primary: Error Creating/Updating Route Table "primary" (Resource Group "Network-Routes"): network.RouteTablesClient#CreateOrUpdate: Failure sending request: StatusCode=400 -- Original Error: Code="NextHopIpAddressNotAllowed" Message="NextHopIpAddress 192.168.0.1 for route UDR_BlackHole cannot be specified. This field can only be specified for NextHopType VirtualAppliance." Details=[]

Steps to Reproduce

1. terraform apply the "before" config
2. terraform apply the "after" config

Important Factoids

References

[draggeta]

Ran into this same issue, but with the routes itself. There the issue isn't as apparent, as changing the name creates a new resource, but if the name stays the same, it doesn't work.

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. If you feel I made an error 🤖 🙉 , please reach out to my human friends 👉 [email protected]. Thanks!