需要通过 terraform 在 azure 中创建多个 vm [英] Need to create multile vms in azure through terraform

问题描述

我在使用 Terraform 在 Azure 中创建多个 VM 时遇到问题.每次失败都是因为它选择了相同的网络接口 ID.那么如何更改我的 Terraform 代码以使其使用不同的网络接口?

这是我的 Terraform 文件:

变量 "node_count" {default = 2}资源azurerm_network_interface"terraform-CnetFace"{name = "cacctni-${format("%02d", count.index+1)}"位置=美国东部2"resource_group_name = "${azurerm_resource_group.terraform-test.name}"ip_configuration {name = "cIpconfig-${format("%02d", count.index+1)}"subnet_id = "${azurerm_subnet.terraform-test.id}"private_ip_address_allocation = "动态"}计数 = "${var.node_count}"}变量confignode_count"{默认值 = 2}资源azurerm_virtual_machine"terraform-test"{name = "confignode-${format("%02d", count.index+1)}"位置=美国东部2"resource_group_name = "${azurerm_resource_group.terraform-test.name}"network_interface_ids = ["${azurerm_network_interface.terraform-CnetFace.id}"]vm_size = "标准_A0"availability_set_id = "${azurerm_availability_set.terraform-test.id}"存储图像参考 {出版商=规范"报价=Ubuntu服务器"sku = "14.04.2-LTS"版本 = 最新"}storage_os_disk {name = "configosdisk-${format("%02d", count.index+1)}"vhd_uri = "${azurerm_storage_account.terraform-test.primary_blob_endpoint}${azurerm_storage_container.terraform-test.name}/configosdisk-${format("%02d", count.index+1)}.vhd"缓存 = "读写"create_option = "FromImage"}存储数据磁盘 {name = "configdatadisk-${format("%02d", count.index+1)}"vhd_uri = "${azurerm_storage_account.terraform-test.primary_blob_endpoint}${azurerm_storage_container.terraform-test.name}/configdatadisk-${format("%02d", count.index+1)}.vhd"disk_size_gb = "512"create_option = "空"伦 = 0}os_profile {computer_name = "confignode-${format("%02d", count.index+1)}"admin_username = "ubuntu"admin_password = "Qawzsx12345"}os_profile_linux_config {disable_password_authentication = false}标签 {环境=生产"}供应商本地执行"{命令 = 睡眠 30"}#循环计数计数 = "${var.confignode_count}"}

解决方案

如果您在循环访问两个资源时尝试链接它们，那么您需要使用splats"来检索在循环中创建的资源列表并选择正确的.这在 interpolation syntax docs 和 资源文档.

在你的情况下，你可能想要这样的东西:

变量 "count" {default = 2}资源azurerm_network_interface"terraform-CnetFace"{计数 = "${var.count}"...}资源azurerm_virtual_machine"terraform-test"{计数 = "${var.count}"...network_interface_ids = ["${element(azurerm_network_interface.terraform-CnetFace.*.id, count.index)}"]...}

这会公开创建的每个循环网络接口的输出，然后循环通过它们，从输出中获取 id 并将其传递给适当的 azurerm_virtual_machine.p>

I'm facing issues during creation of multiple VMs in Azure with Terraform. Each time it is failing because it is picking the same network-interface-id. So how can I change my Terraform code to make this use the different network interfaces?

Here is my Terraform file:

variable "node_count" {default = 2} 

resource "azurerm_network_interface" "terraform-CnetFace" {
  name = "cacctni-${format("%02d", count.index+1)}"
  location = "East US 2"
  resource_group_name = "${azurerm_resource_group.terraform-test.name}"

  ip_configuration {
      name = "cIpconfig-${format("%02d", count.index+1)}"
      subnet_id = "${azurerm_subnet.terraform-test.id}"
      private_ip_address_allocation = "dynamic"
  }
  count = "${var.node_count}"
}

variable "confignode_count" {default = 2} 

resource "azurerm_virtual_machine" "terraform-test" {
  name   = "confignode-${format("%02d", count.index+1)}"
  location = "East US 2"
  resource_group_name = "${azurerm_resource_group.terraform-test.name}"
  network_interface_ids = ["${azurerm_network_interface.terraform-CnetFace.id}"]
  vm_size = "Standard_A0"
  availability_set_id = "${azurerm_availability_set.terraform-test.id}"

  storage_image_reference {
      publisher = "Canonical"
      offer = "UbuntuServer"
      sku = "14.04.2-LTS"
      version = "latest"
  }

  storage_os_disk {
      name = "configosdisk-${format("%02d", count.index+1)}"
      vhd_uri = "${azurerm_storage_account.terraform-test.primary_blob_endpoint}${azurerm_storage_container.terraform-test.name}/configosdisk-${format("%02d", count.index+1)}.vhd"
      caching = "ReadWrite"
      create_option = "FromImage"
  }

  storage_data_disk {
  name          = "configdatadisk-${format("%02d", count.index+1)}"
  vhd_uri       = "${azurerm_storage_account.terraform-test.primary_blob_endpoint}${azurerm_storage_container.terraform-test.name}/configdatadisk-${format("%02d", count.index+1)}.vhd"
  disk_size_gb  = "512"
  create_option = "empty"
  lun           = 0
  }

  os_profile {
      computer_name = "confignode-${format("%02d", count.index+1)}"
      admin_username = "ubuntu"
      admin_password = "Qawzsx12345"
  }

  os_profile_linux_config {
      disable_password_authentication = false
  }

  tags {
      environment = "Production"
  }
  provisioner "local-exec" {
      command = "sleep 30"
  }

  #Loop for Count
  count = "${var.confignode_count}"
}

解决方案

If you're trying to link two resources as you loop through them then you need to use "splats" to retrieve the list of resources created in a loop and select the right one. This is explained briefly in the interpolation syntax docs and the resources docs.

In your case you probably want something like:

variable "count" {default = 2} 

resource "azurerm_network_interface" "terraform-CnetFace" {
  count = "${var.count}"
  ...
}

resource "azurerm_virtual_machine" "terraform-test" {
  count = "${var.count}"
  ...
  network_interface_ids = ["${element(azurerm_network_interface.terraform-CnetFace.*.id, count.index)}"]
  ...
}

This exposes the outputs for each of the looped network interfaces created and then loops through them grabbing the id from the output and passing it to the appropriate azurerm_virtual_machine.

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