Terraform azurerm_managed_disk在Terraform应用并销毁VM之后总是更换

Question

如下所示，我正在尝试使用azurerm_managed_disk部署新的虚拟机。 到第一次运行良好，但是我运行Terraform计划/应用Azurerm_Managed_disk资源的每一刻都在重建，因此使用此磁盘的VM也是重建的。有人知道发生了什么吗？

代码：

resource "azurerm_snapshot" "snapshot" {
  name                = "az1srzertosnaphot"
  location            = azurerm_resource_group.resource_group.location
  resource_group_name = azurerm_resource_group.resource_group.name
  create_option       = "Copy"
  source_resource_id  = data.azurerm_managed_disk.zerto_managed_disk.id
}

resource "azurerm_managed_disk" "zerto_managed_disk" {
  name                 = "az1srzerto_managed_disk"
  location             = azurerm_resource_group.resource_group.location
  resource_group_name  = azurerm_resource_group.resource_group.name
  storage_account_type = "Standard_LRS"
  create_option        = "Copy"
  source_resource_id   = azurerm_snapshot.snapshot.id
  disk_size_gb         = "127"
}

resource "azurerm_virtual_machine" "zerto_virtual_machine" {
  name                  = var.vm_zerto_name
  location              = azurerm_resource_group.resource_group.location
  resource_group_name   = azurerm_resource_group.resource_group.name
  vm_size               = "Standard_D2s_v3"
  network_interface_ids = [azurerm_network_interface.vm_zerto_interface.id]
  

  storage_os_disk {
    name              = azurerm_managed_disk.zerto_managed_disk.name
    caching           = "ReadWrite"
    disk_size_gb      = "127"
    os_type           = "Windows"
    managed_disk_type = "Standard_LRS"
    managed_disk_id   = azurerm_managed_disk.zerto_managed_disk.id
    create_option     = "Attach"
  }

  os_profile_windows_config {
    provision_vm_agent = false

遵循Terraform计划

Terraform used the selected providers to generate the following execution plan. Resource actions are indicated with the following symbols:
-/+ destroy and then create replacement

Terraform will perform the following actions:

  # module.disaster_recovery.azurerm_managed_disk.zerto_managed_disk must be replaced
-/+ resource "azurerm_managed_disk" "zerto_managed_disk" {
      ~ disk_iops_read_only           = 0 -> (known after apply)
      ~ disk_iops_read_write          = 500 -> (known after apply)
      ~ disk_mbps_read_only           = 0 -> (known after apply)
      ~ disk_mbps_read_write          = 60 -> (known after apply)
      - hyper_v_generation            = "V1" -> null # forces replacement
      ~ id                            = "/subscriptions/XXXXXXXXXXXX/resourceGroups/az-prd-euw-disasterrecovery-rg-001/providers/Microsoft.Compute/disks/az1srzerto_managed_disk" -> (known after apply)
      + logical_sector_size           = (known after apply)
      ~ max_shares                    = 0 -> (known after apply)
        name                          = "az1srzerto_managed_disk"
      - on_demand_bursting_enabled    = false -> null
      - os_type                       = "Windows" -> null
      + source_uri                    = (known after apply)
      - tags                          = {} -> null
      + tier                          = (known after apply)
      - trusted_launch_enabled        = false -> null
        # (7 unchanged attributes hidden)
    }

  # module.disaster_recovery.azurerm_virtual_machine.zerto_virtual_machine must be replaced
-/+ resource "azurerm_virtual_machine" "zerto_virtual_machine" {
      + availability_set_id              = (known after apply)
      ~ id                               = "/subscriptions/XXXXXXXXXX/resourceGroups/az-prd-euw-disasterrecovery-rg-001/providers/Microsoft.Compute/virtualMachines/az1srzerto" -> (known after apply)
      + license_type                     = (known after apply)
        name                             = "az1srzerto"
      - tags                             = {} -> null
      - zones                            = [] -> null
        # (6 unchanged attributes hidden)

      + identity {
          + identity_ids = (known after apply)
          + principal_id = (known after apply)
          + type         = (known after apply)
        }


      + storage_data_disk {
          + caching                   = (known after apply)
          + create_option             = (known after apply)
          + disk_size_gb              = (known after apply)
          + lun                       = (known after apply)
          + managed_disk_id           = (known after apply)
          + managed_disk_type         = (known after apply)
          + name                      = (known after apply)
          + vhd_uri                   = (known after apply)
          + write_accelerator_enabled = (known after apply)
        }

      + storage_image_reference {
          + id        = (known after apply)
          + offer     = (known after apply)
          + publisher = (known after apply)
          + sku       = (known after apply)
          + version   = (known after apply)
        }

      ~ storage_os_disk {
          ~ managed_disk_id           = "/subscriptions/XXXXXXXXXX/resourceGroups/az-prd-euw-disasterrecovery-rg-001/providers/Microsoft.Compute/disks/az1srzerto_managed_disk" -> (known after apply) # forces replacement
            name                      = "az1srzerto_managed_disk"
            # (6 unchanged attributes hidden)
        }
        # (1 unchanged block hidden)
    }

Plan: 2 to add, 0 to change, 2 to destroy.

──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────    

Note: You didn't use the -out option to save this plan, so Terraform can't guarantee to take exactly these actions if you run "terraform apply" now.

有什么想法吗？

Answer 1

我们尝试使用带有托管磁盘和快照的Terraform创建虚拟机。

如 @ marko e 所建议的， 我们还观察到了不同的参数（即，create_option =“ empty”，然后将其更改为“复制”） << /em>。

错误详细信息： -

在更改值之前 ： -

我们正在使用的代码如下。

main.tf ：

provider   "azurerm"   { 
    features   {} 
 } 


variable "prefix" {
  default = "examplem"
}

locals {
  vm_name = "${var.prefix}-vm"
}

resource "azurerm_resource_group" "example" {
  name     = "${var.prefix}-resources"
  location = "West Europe"
}

resource "azurerm_virtual_network" "main" {
  name                = "${var.prefix}-network"
  address_space       = ["10.0.0.0/16"]
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name
}

resource "azurerm_subnet" "internal" {
  name                 = "internal"
  resource_group_name  = azurerm_resource_group.example.name
  virtual_network_name = azurerm_virtual_network.main.name
  address_prefixes     = ["10.0.2.0/24"]
}

resource "azurerm_network_interface" "main" {
  name                = "${var.prefix}-nic"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name

  ip_configuration {
    name                          = "internal"
    subnet_id                     = azurerm_subnet.internal.id
    private_ip_address_allocation = "Dynamic"
  }
}

resource "azurerm_virtual_machine" "example" {
  name                  = local.vm_name
  location              = azurerm_resource_group.example.location
  resource_group_name   = azurerm_resource_group.example.name
  network_interface_ids = [azurerm_network_interface.main.id]
  vm_size               = "Standard_F2"

  storage_image_reference {
    publisher = "Canonical"
    offer     = "UbuntuServer"
    sku       = "16.04-LTS"
    version   = "latest"
  }

  storage_os_disk {
    name              = "mydisk"
    caching           = "ReadWrite"
    create_option     = "FromImage"
    managed_disk_type = "Standard_LRS"
  }

  os_profile {
    computer_name  = local.vm_name
    admin_username = "yourusername"
    admin_password = "yourpassword!"
  }

  os_profile_linux_config {
    disable_password_authentication = false
  }
}


resource "azurerm_managed_disk" "example" {
  name                 = "${local.vm_name}-disk1"
  location             = azurerm_resource_group.example.location
  resource_group_name  = azurerm_resource_group.example.name
  storage_account_type = "Standard_LRS"
  create_option        = "Empty"
  //source_resource_id   = azurerm_snapshot.example.id
  disk_size_gb         = 10
}

resource "azurerm_snapshot" "example" {
  name                = "snapshot"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name
  create_option       = "Copy"
  source_resource_id  = azurerm_managed_disk.example.id
}

resource "azurerm_virtual_machine_data_disk_attachment" "example" {
  managed_disk_id    = azurerm_managed_disk.example.id
  virtual_machine_id = azurerm_virtual_machine.example.id
  lun                = "10"
  caching            = "ReadWrite"
}

建议您， 解决此问题，请确保您已经提供了与您之前在托管磁盘上提到的相同的参数。

- hyper_v_generation            = "V1"

成功应用： -

有关更多信息，请参阅此 博客hashicorp | 。