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amazon-web-services - Terraform 数据结构：对象和对象列表

问题描述

我正在尝试使用 terraform 创建一些 aws 资源。这是我的问题：

我正在创建一些变量，所以我可以从资源中访问它们。这是variables.tf文件的内容：

变量.tf

variable "zones" {
  type = "list"
  default = ["us-east-1a", "us-east-1b"]
}

variable "init" {
    type = object({
                    vpc-id=list(string),
                    public-subnet=string, 
                    aws_region=string, 
                    ami=string,
                    vpc-sec-group= list(string)
            })

    param = {
        vpc-id = ["vpc-1111111"]
        public-subnet = "subnet-98e4567"
        aws_region = "${element(var.zones,0)}"
        ami = "ami-09d95fab7fff3776c",
        vpc-sec-group = ["sg-d60bf3f5"]
    }
}


variable "instances" {
    type = list(object({ type=string, count=string, tags=map(string) }))
    t2-micro ={
        type = "t2.micro"
        count = 4
        tags = { Name = "Test T2"}
    }
    m4-large ={
        type = "m4-large"
        count = 2
        tags = { Name = "Test M4"}
    }
}

我的计划是使用这些变量来创建一些 ec2 实例，所以这里是ec2.tf

ec2.tf

resource "aws_instance" "Test-T2" {
    type   = lookup(var.insts["t2-micro"],"type")
    ami = lookup(var.init.ami["ami"],var.init.aws_region["aws_region"] )
    count  = lookup(var.insts["t2-micro"],"count")
    tags = lookup(var.insts["t2-micro"],"tags")
    key_name = aws_key_pair.terraform-demo.key_name
    vpc_security_group_ids = toset(lookup(var.init, "vpc-sec-group"))
    subnet_id = lookup(var.init.params["public-subnet"])
}

问题

当我执行

terraform init

我收到以下错误：

Error: Unsupported argument

  on variables.tf line 26, in variable "instances":
  26:     t2-micro ={

An argument named "t2-micro" is not expected here.


Error: Unsupported argument

  on variables.tf line 32, in variable "instances":
  32:     m4-large ={

An argument named "m4-large" is not expected here.


Terraform has initialized, but configuration upgrades may be needed.

Terraform found syntax errors in the configuration that prevented full
initialization. If you've recently upgraded to Terraform v0.12, this may be
because your configuration uses syntax constructs that are no longer valid,
and so must be updated before full initialization is possible.

有人可以帮我纠正这些错误吗？

更多细节和我采取的一些行动

据我所知，我尝试了不同的方法来创建变量，但遵循 Terraform 文档无济于事。

我只是在模仿 Python：

这是我的 terraform 版本

terraform  -v                                                        
Terraform v0.12.26
+ provider.aws v2.65.0

更多细节

我将最新版本的 Visual Studio Code 1.45.1 与 Terraform 模块 HashiCop 1.4.0 一起用于“Hashicorp 的 Terraform 的语法突出显示、检查、格式化和验证”

标签： amazon-web-servicesterraformterraform-provider-awsterraform0.12+

解决方案

You need to separate your variable declarations and assignments. Those cannot co-exist within the same block.

Your declaration within the variables.tf would look like (with some fixes and cleanup):

variable "instances" {
  type = list(object({
    type  = string # removed commas since you specified object type
    count = number # fixed from string type
    tags  = map(string)
  }))
}

Your variable assignment should be moved to a .tfvars file. Customarily this file would be named terraform.tfvars:

instances = [ # you specified a list so we add the proper syntax here
  { # you specified an object, so we remove the keys and retain the values
    type  = "t2.micro"
    count = 4
    tags  = { "Name" = "Test T2"} # you specified map(string) so Name becomes string
  },
  {
    type  = "m4-large"
    count = 2
    tags  = { "Name" = "Test M4"}
  }
}]

and that will be a valid input variable with proper assignment given your declaration. That will fix your error.

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