Question

我想用 Terraform 生成一个资源的多个实例。以下脚本适用于一个实例。不幸的是，创建新 VM 时，创建的 VM 只是被不同的参数覆盖。据我所知，Terraform 函数 for_each 不能在 data 块中使用。

如何使用不同的参数创建多个实例？不幸的是，我对 Terraform 的了解非常有限。因此，我很感激任何帮助。

地形脚本：

# Provider
provider "vsphere" {
  user                 = var.vsphere_user
  password             = var.vsphere_password
  vsphere_server       = var.vsphere_server
  allow_unverified_ssl = true
}

# Datacenter
data "vsphere_datacenter" "dc" {
  name = var.vsphere_datacenter
}

# Datastore
data "vsphere_datastore" "datastore" {
  name          = var.vsphere_datastore
  datacenter_id = data.vsphere_datacenter.dc.id
}

# Cluster
data "vsphere_compute_cluster" "cluster" {
  name          = var.vsphere_compute_cluster
  datacenter_id = data.vsphere_datacenter.dc.id
}

# Network
data "vsphere_network" "network" {
  name          = var.vsphere_network
  datacenter_id = data.vsphere_datacenter.dc.id
}

# Template
data "vsphere_virtual_machine" "template" {
  name          = var.vsphere_virtual_machine_template
  datacenter_id = data.vsphere_datacenter.dc.id
}

# Import the random password provider
terraform {
  required_providers {
    random = {
      source = "hashicorp/random"
    }
  }
}

# Create a new random password
resource "random_password" "password" {
  length           = 25
  upper            = true
  lower            = true
  number           = true
  special          = true
  min_upper        = 2
  min_lower        = 2
  min_numeric      = 2
  min_special      = 1
  override_special = "!@#$%&*()-_=+[]{}<>:?"
}

# Virtual Machine Resource
resource "vsphere_virtual_machine" "server-instance" {
  # System
  firmware  = "efi"
  guest_id  = data.vsphere_virtual_machine.template.guest_id
  scsi_type = data.vsphere_virtual_machine.template.scsi_type

  # VM-Name
  name             = var.system_name
  resource_pool_id = data.vsphere_compute_cluster.cluster.resource_pool_id
  datastore_id     = data.vsphere_datastore.datastore.id

  # CPU
  num_cpus               = var.system_cores
  num_cores_per_socket   = var.system_cores_per_socket
  cpu_hot_add_enabled    = true
  cpu_hot_remove_enabled = true

  # Memory
  memory                 = var.system_memory
  memory_hot_add_enabled = true

  # Network
  network_interface {
    network_id   = data.vsphere_network.network.id
    adapter_type = "e1000e"
  }

  # Storage
  # Drive 0 (C)
  disk {
    label            = "disk0"
    unit_number      = 0
    size             = data.vsphere_virtual_machine.template.disks.0.size
    eagerly_scrub    = data.vsphere_virtual_machine.template.disks.0.eagerly_scrub
    thin_provisioned = data.vsphere_virtual_machine.template.disks.0.thin_provisioned
  }

  # Drive 1 (D)
  disk {
    label            = "disk1"
    unit_number      = 1
    size             = var.system_disk1_size
    eagerly_scrub    = data.vsphere_virtual_machine.template.disks.1.eagerly_scrub
    thin_provisioned = data.vsphere_virtual_machine.template.disks.1.thin_provisioned
  }

  # Clone from template and config
  clone {
    template_uuid = data.vsphere_virtual_machine.template.id

    customize {
      windows_options {
        computer_name         = var.system_name
        admin_password        = random_password.password.result
        join_domain           = var.system_domain
        domain_admin_user     = var.system_domain_admin_user
        domain_admin_password = var.system_domain_admin_password
        auto_logon            = true
      }

      network_interface {
        ipv4_address    = var.system_ipv4_address
        ipv4_netmask    = var.system_ipv4_netmask
        dns_server_list = var.system_dns_server_list
      }

      ipv4_gateway = var.system_ipv4_gateway
    }
  }
}

Answer 1

答案在很大程度上取决于这些虚拟机是作为一个组进行管理还是单独进行管理？

如果单独使用，那么每个 VM 都需要自己的 terraform 配置文件。

如果您将它们作为一个组进行管理（例如，如果一个 VM 发生更改，则它们都需要更改），那么您可以使用 for_each 作为资源块的一部分。但是，正如您所指出的，这不会影响数据块。因此，无论您希望如何管理这些 VM 资源，我都会研究 Terraform 模块并将该配置转换为一个模块，以帮助使其更具可重用性。还有一个学习指南可以帮助创建和引用模块的过程：Module Overview

我如何使用 Terraform 创建多个实例

1 个答案: