azurerm - Terraform 的行为不符合预期

Question

我正在尝试创建一个 Terraform 项目来创建 Azure 订阅中所需的所有内容，例如资源组、vnet、子网和 VM。

但是，当我运行一次并重试时，它指出它无法删除正在使用的子网。我没有更改有关子网或连接到子网的虚拟机的任何内容。

错误:创建/更新虚拟网络:(名称“”/资源组“”):network.VirtualNetworksClient#CreateOrUpdate:发送请求失败:StatusCode=400 -- 原始错误:代码 =“InUseSubnetCannotBeDeleted”消息 =“子网构建” -agent 正在由/subscriptions/mysub/resourceGroups/myrg/providers/Microsoft.Network/networkInterfaces/mynic/ipConfigurations/internal 使用，无法删除。要删除子网，请删除子网内的所有资源。请参阅又名.ms/删除子网。”详情=[]

terraform {
  required_version = ">= 1.1.0"
  backend "azurerm" {
  }
  required_providers {
    azurerm = {
    version = "=3.5.0"
      source = "hashicorp/azurerm" # https://registry.terraform.io/providers/hashicorp/azurerm/latest
    }
  }
}

# Configure the Microsoft Azure Provider
provider "azurerm" {
  features {}
}

locals {
    name_suffix = "<mysuffix>"
}

resource "azurerm_resource_group" "rg-infra" {
  name     = "rg-${local.name_suffix}"
  location = "UK South"
}

resource "azurerm_virtual_network" "vnet-mgmt" {
  name                = "vnet-${local.name_suffix}"
  location            = azurerm_resource_group.rg-infra.location
  resource_group_name = azurerm_resource_group.rg-infra.name
  address_space       = ["<myiprange>"]

  subnet {
    name           = "virtual-machines"
    address_prefix = "<myiprange>"
  }

  subnet {
    name           = "databases"
    address_prefix = "<myiprange>"
  }
}

data "azurerm_virtual_network" "network" {
  name                = "vnet-${local.name_suffix}"
  resource_group_name = azurerm_resource_group.rg-infra.name
}

resource "azurerm_subnet" "sb-ansible" {
  name                 = "build-agent"
  resource_group_name  = azurerm_resource_group.rg-infra.name
  virtual_network_name = data.azurerm_virtual_network.network.name
  address_prefixes     = ["<myiprange>"]
  depends_on           = [azurerm_virtual_network.vnet-mgmt]

}

data "azurerm_subnet" "prd-subnet" {
    name = "build-agent"
    virtual_network_name = data.azurerm_virtual_network.network.name
    resource_group_name = azurerm_resource_group.rg-infra.name
    depends_on          = [azurerm_subnet.sb-ansible]
}


resource "azurerm_network_interface" "ni-ansible" {
  name                = "nic-ansible-${local.name_suffix}"
  location            = azurerm_resource_group.rg-infra.location
  resource_group_name = azurerm_resource_group.rg-infra.name

  ip_configuration {
    name                          = "internal"
    subnet_id                     = data.azurerm_subnet.prd-subnet.id
    private_ip_address_allocation = "Dynamic"
  }

  lifecycle {
    ignore_changes = ["ip_configuration"]
  }

  depends_on           = [azurerm_subnet.sb-ansible]
}

resource "azurerm_linux_virtual_machine" "ansible-vm" {
  name                = "ansible-build-agent"
  resource_group_name = azurerm_resource_group.rg-infra.name
  location            = azurerm_resource_group.rg-infra.location
  size                = "Standard_D2as_v4"
  admin_username      = "myadminuser"
  network_interface_ids = [
    azurerm_network_interface.ni-ansible.id,
  ]

  admin_ssh_key {
    username   = "myadminuser"
    public_key = ""
  }

  os_disk {
    caching              = "ReadWrite"
    storage_account_type = "Standard_LRS"
  }

  source_image_reference {
    publisher = "Canonical"
    offer     = "UbuntuServer"
    sku       = "18.04-LTS"
    version   = "latest"
  }

  lifecycle {
    ignore_changes = ["source_image_reference"]
  }

  depends_on           = [azurerm_network_interface.ni-ansible]
}

任何有关其行为原因的帮助或解决方法将不胜感激!

非常感谢

Answer 1

事实证明，您无法将 vnet block 中的嵌套子网与显式定义的 azurerm_subnet 混合使用