如何在 `main.tf` 中引用变量？

Question

我有两个地形文件 main.tf 和 var.tfvars:

main.tf:

provider "google" {
  project = var.project_id
  region  = var.gcp_region
}

provider "aws" {
  region = var.aws_region
    alias = "aws"
}

vars.tfvars:

variable "gcp_region" {
    type = string
    default = "asia-southeast1"
}

variable "aws_region" {
    type = string
    default = "ap-southeast-2"
}

variable "project_id" {
    type = string
    default = "test-oidc-arosha"
}

当我运行 terraform apply 时，出现以下错误：

Error: Reference to undeclared input variable
│
│   on local.tf line 6, in locals:
│    6:     state_backet = "${local.component_name}-${local.part_name}-deployment-${var.aws_region}-${data.aws_caller_identity.current.account_id}"
│
│ An input variable with the name "aws_region" has not been declared. This variable can be declared
│ with a variable "aws_region" {} block.
╵
╷
│ Error: Reference to undeclared input variable
│
│   on main.tf line 2, in provider "google":
│    2:   project = var.project_id
│
│ An input variable with the name "project_id" has not been declared. This variable can be declared
│ with a variable "project_id" {} block.
╵
╷
│ Error: Reference to undeclared input variable
│
│   on main.tf line 3, in provider "google":
│    3:   region  = var.gcp_region
│
│ An input variable with the name "gcp_region" has not been declared. This variable can be declared
│ with a variable "gcp_region" {} block.

即使我已经为每个变量指定了默认值，我还是不明白为什么会出现此错误。

我的 terraform 版本是：

$ terraform --version
Terraform v1.0.0
on darwin_amd64
+ provider registry.terraform.io/hashicorp/aws v3.45.0
+ provider registry.terraform.io/hashicorp/google v3.72.0

Answer 1

您需要在 main.tf 中添加变量定义，然后在 var.tf 中适当地使用您的变量

例子

 variable "aws_region" {
    type = string
    default = "ap-southeast-2"
}

var.tf变量

例子

aws_region = {
    Name = "created by jatin/terraform",
    instance_type="t2.micro"
}

Answer 2

将 vars.tfvars 文件的名称更改为 variables.tf，它应该采用默认值。 .tfvars 文件用于输入变量，这些变量又定义在 variables.tf 文件（或任何 .tf 文件，实际上，不管你怎么称呼它。）

如何在 `main.tf` 中引用变量？

How can I reference a variable in `main.tf`?

terraform

terraform-provider-aws

terraform-provider-gcp