azure-virtual-machine - Terraform 报告 'No module called "模块名称“在 "root"模块中声明”

Question

我已经进行了探索，我想坚持自定义模块概念，而不是使用 Azure 公共(public)模块注册表。

源代码位置在这里

https://github.com/ameyaagashe/help_me_cross_2

我使用以下参数在命令行上运行 terraform:

terraform plan -var "resource_group_name=nxt-grp-prd-manage-rgp-au-se" -var "virtual_network_name=virtual_network_1" -var "sql_subnet_name=subnet_1" -var "app_subnet_name=subnet_2" -var "application_nsg=test_nsg" -var "count_vm=2" -var "sql_host_basename=sqlvms" -var "app_host_basename=appvms" -var "storage_account_suffix=sta" -var "virtual_machine_size=Standard_B1ms" -var "virtual_machine_image_publisher=MicrosoftWindowsServer" -var "virtual_machine_image_offer=WindowsServer" -var "virtual_machine_image_sku=2012-R2-Datacenter" -var "virtual_machine_image_version=latest" -var "username=devopsadmin" -var "password=Angular12#$%"

但是，我收到如下错误:

Error: Reference to undeclared module

  on ../../modules/compute/main.tf line 25, in resource "azurerm_virtual_machine" "tf-vm":
  25:   location                         = module.resourcegroup.external_rg_location

No module call named "resourcegroup" is declared in sql_vms.


Error: Reference to undeclared module

  on ../../modules/compute/main.tf line 26, in resource "azurerm_virtual_machine" "tf-vm":
  26:   resource_group_name              = module.resourcegroup.external_rg_name

No module call named "resourcegroup" is declared in sql_vms.


Error: Reference to undeclared module

  on ../../modules/compute/main.tf line 27, in resource "azurerm_virtual_machine" "tf-vm":
  27:   network_interface_ids            = [element(module.network.network_interface_ids,count.index)]

No module call named "network" is declared in sql_vms.


Error: Reference to undeclared module

  on ../../modules/network/data.tf line 5, in data "azurerm_virtual_network" "tf-vn":
   5:   resource_group_name  = module.resource_groups.external_rg_name

No module call named "resource_groups" is declared in networking.


Error: Reference to undeclared module

  on ../../modules/nsg/main.tf line 3, in resource "azurerm_network_security_group" "tf-nsg":
   3:   location            = module.resourcegroup.external_rg_location

No module call named "resourcegroup" is declared in network_security_group.


Error: Reference to undeclared module

  on ../../modules/nsg/main.tf line 4, in resource "azurerm_network_security_group" "tf-nsg":
   4:   resource_group_name = module.resourcegroup.external_rg_name

No module call named "resourcegroup" is declared in network_security_group.


Error: Reference to undeclared input variable

  on ../../modules/resourcegroup/data.tf line 2, in data "azurerm_resource_group" "tf-rg-external":
   2:   name = var.rg_name

An input variable with the name "rg_name" has not been declared. This variable
can be declared with a variable "rg_name" {} block.

无法理解根本问题...

我在他们自己的 terraform 配置文件中定义所有模块并在根模块中调用它们？

我衷心感谢您的帮助。

Answer 1

从长远来看，单独解决每个问题可能对您没有帮助，因此我将提供一个一般性的错误认识，并分享引用资料以帮助 future 的 Terraform 配置。

引用 module.resource_group内部输出 module.sql_vms不起作用，因为 Terraform 模块组合不允许兄弟模块直接相互引用输出。

文档中有一段解释它:

https://www.terraform.io/docs/modules/composition.html

输出只能通过根模块从一个模块传递到另一个模块。

以下是 Terraform 文档中的示例:

module "network" {
  source = "./modules/aws-network"

  base_cidr_block = "10.0.0.0/8"
}

module "consul_cluster" {
  source = "./modules/aws-consul-cluster"

  vpc_id     = module.network.vpc_id
  subnet_ids = module.network.subnet_ids
}

一旦解决了这个问题，下一个问题就是模块没有被正确的名称引用。根据 main.tf在 git repo 中，已经声明了 4 个模块:

module.sql_vms
module.resource_group
module.networking
module.network_security_group

由于模块被声明为 resource_group , 它应该被引用而不是 resourcegroup .

最后，一个名为 rg_name 的变量应该在 modules/resourcegroup/ 中声明目录。请参阅以下内容以了解变量声明:

https://www.terraform.io/docs/configuration/variables.html

这可能不是所有问题，但它是一个开始。如果可能，我强烈建议您阅读有关创建模块的 Terraform 文档。它们可以在这里找到:

https://www.terraform.io/docs/modules/index.html