Terraform:缺少必需的参数

Question

有人可以帮助阐明局部变量和全局变量在 Terraform 中的工作原理吗？我现在面临这个问题:

PS E:\GitRepo\Terraform\prod> terraform plan╷│ Error: Missing required argument││ on main.tf line 46, in module "pub-rt":│ 46: module "pub-rt" {││ The argument "vpc_cidr_block" is required, but no definition was found.╵╷│ Error: Missing required argument││ on main.tf line 46, in module "pub-rt":│ 46: module "pub-rt" {││ The argument "nat_id" is required, but no definition was found.

我的代码结构是:

-- Dev
  -- main.tf
-- modules
  -- rt
    -- pub-rt.tf
    -- pri-rt.tf
    -- vars.tf

这是我的ma​​in.tf

# Create Public Route Table
module "pub-rt" {
  source            = "../modules/rt"
  pub_rt_tag        = { Name = "prod-pub-rt" }
  vpc_id            = module.vpc.vpcId 
  ir_cidr           = var.ir_cidr                                 # routing inside the VPC
  gateway_id        = module.igw.igwId                            # routing to the internet through igw
}


# Create Private Route Table
module "pri-rt" {
  source            = "../modules/rt"
  pub_rt_tag        = { Name = "prod-pri-rt" }
  vpc_id            = module.vpc.vpcId 
  vpc_cidr_block    = var.vpc_cidr                                # routing inside the VPC
  nat_id            = module.nat.natId                            # routing to the internet NAT
}

我的 ../rt/vars.tf 包含:

variable "vpc_cidr_block" { }  //this variable point to "pri-rt.tf"
variable "vpc_id" { }          //this variable common and point to "pub-rt.tf" and "pri-rt.tf"
variable "gateway_id" { }      //this variable point to "pub-rt.tf"
variable "nat_id" { }          //this variable point to "pri-rt.tf"
variable "ir_cidr" { }         //this variable point to "pub-rt.tf"

Answer 1

变量具有模块范围，因此没有全局变量传播到所有子模块。您的 vars.tf 应该在 ./Dev 中。您还需要相应的 vars.tf 以及特定于您的模块的变量。