更改 Terraform 代码以允许多个 NIC

2024-6-1 • tag-icon

我们正在尝试修改我们自己没有构建的 Terraform 基础设施。当前代码确实支持多个磁盘，但只支持一个 NIC。我们尝试相应地修改 NIC 部分，但失败了。不幸的是，我们没有保存我们尝试的代码或错误消息。我希望有人能告诉我这些更改必须是什么。

这就是我们所拥有的：

相关代码片段

module "tf_file_1_module" {
[...]
vm_ipnet = "1.2.3."
vm_ipstart = "4"
network = "staging"
[...]
}

应改为

module "tf_file_1_module" {
[...]
vm_ipnet = ["5.6.7", "1.2.3"]
vm_ipstart = ["8", "10"]
network = ["foo-network", "bar-network"]
[...]
}

对于主磁盘，我们在模块中没有明确的配置。附加磁盘使用可选参数配置

thin_provisioned       = ["true", "true"]
data_disk_size_gb      = ["100", "5"]

这些由以下代码处理：

  dynamic "disk" {
     for_each = var.data_disk_size_gb
     content {
       label            = "disk${disk.key + 1}"
       size             = var.data_disk_size_gb[disk.key]
       unit_number      = disk.key + 1
       thin_provisioned = var.thin_provisioned != null ? var.thin_provisioned[disk.key] : true
       eagerly_scrub    = var.eagerly_scrub != null ? var.eagerly_scrub[disk.key] : false
     }
   }

这就是我们尝试为 NIC 重现的内容。

（或多或少）完整的代码

我们在 Terraform 工作流中定义了以下结构：

├── config
│   ├── backend.conf
│   └── backend.tfvars
├── tf_file_1.tf

在 .tf 文件中我们有这样的定义：

module "tf_file_1_module" {
source = "[email protected]?ref=master"
datacenter = "DC"
cluster = "Linux-Cluster"
network = "staging"
datastore_cluster = "Netapp"
vm_template = "packer-template"
vm_setname = "tf_file_1"
vm_setcount = 1
vm_folder = "Linuxhosts/staging"
vm_cpu = 2
cpu_hot_add_enabled = "true"
cpu_hot_remove_enabled = "true"
vm_memory = 4096
memory_hot_add_enabled = "true"
vm_domain = "my.fancy.domain"
vm_ipnet = "1.2.3."
vm_ipstart = "4"
logging_enabled = "true"
anti_affinity = "false"
}

在内部映射network到 vCenter 中的名称，因此我们不必输入没人能记住的长网络名称。

因此，每个文件都使用自己的模块，该模块源自 Git 存储库，然后根据需要进行修改。结构如下所示：

.
├── main.tf
├── output.tf
├── provider.tf
├── README.md
├── variables.tf
└── versions.tf

模块内部main.tf有一些定义，其中包括网络的定义：

data "vsphere_network" "network" {
  name = "/${var.datacenter}/network/${var.network_map[var.network]}"
  datacenter_id = data.vsphere_datacenter.dc.id
}
(→ Here you can also see the mapping for the network name)
 
resource "vsphere_virtual_machine" "vm" {
  count = var.vm_setcount
  name = "${var.vm_setname}${format("%02d", count.index + 1)}${var.append_fqdn == true ? ".my.fancy.domain" : ""}"
  resource_pool_id = data.vsphere_compute_cluster.cluster.resource_pool_id
  datastore_cluster_id = data.vsphere_datastore_cluster.datastore_cluster.id
  annotation = "Deployed via Terraform"
  num_cpus = var.vm_cpu
  cpu_hot_add_enabled = var.cpu_hot_add_enabled
  cpu_hot_remove_enabled = var.cpu_hot_remove_enabled
  memory = var.vm_memory
  memory_hot_add_enabled = var.memory_hot_add_enabled
  folder = var.vm_folder
  guest_id = data.vsphere_virtual_machine.small.guest_id
  scsi_type = data.vsphere_virtual_machine.small.scsi_type
  enable_logging = var.logging_enabled
 
  network_interface {
    network_id = data.vsphere_network.network.id
    adapter_type = data.vsphere_virtual_machine.small.network_interface_types[0]
  }
 
  clone {
    template_uuid = data.vsphere_virtual_machine.small.id
    customize {
      linux_options {
        host_name = "${var.vm_setname}${format("%02d", count.index + 1)}"
        domain = var.vm_domain
      }
 
      network_interface {
        ipv4_address = "${var.vm_ipnet}.${count.index + var.vm_ipstart}"
        ipv4_netmask = 24
      }
 
      ipv4_gateway = "${var.vm_ipnet}.1"
      dns_server_list = ["8.8.8.8"]
      dns_suffix_list = ["my.fancy.domain"]
    }
  }
}

重要变量定义如下：

variable "network" {
  description = "Network in which the VM will be created."
  type        = string
}
 
variable "vm_ipnet" {
  description = "Host VM IP address network part prefix."
  type        = string
}
 
variable "vm_ipstart" {
  description = "VM host part IP address configuration/start address. Will automatially increase when more than one vm are to be created."
  type        = string
}

相关代码片段

（或多或少）完整的代码

相关内容