数据资源“aws_subnets”“selected”尚未在根模块中声明

Question

我正在使用 terragrunt。 我在 data.tf 中声明了以下内容：

data "aws_vpcs" "this" {
  tags = {
    terraform    = "true"
    project_name = var.project_name
  }
}

data "aws_vpc" "this" {
  id = element(tolist(data.aws_vpcs.this.ids), 0)
}

data "aws_subnets" "selected" {
  filter {
    name   = "vpc-id"
    values = [data.aws_vpc.this.id]
  }
  tags = {
    environment  = var.environment
    project_name = var.project_name
    region       = var.region
    service      = "database"
  }
}

我想在 terraform-aws-modules/rds/aws 模块中使用它，如下：

  subnet_ids              = data.aws_subnets.selected.ids

但是我收到错误：

Error: Reference to undeclared resource
│ 
│   on rds.tf line 40, in module "rds_postgres_primary":
│   40:   subnet_ids              = data.aws_subnets.selected.ids
│ 
│ A data resource "aws_subnets" "selected" has not been declared in the root
│ module.

我在这里做错了什么？以前有用过...

Answer 1

如果我没理解错的话，您可以将其

data.tf

放在将信息传递给模块的

terragrunt.hcl

旁边

rds_postgres_primary

。

请尝试在

terragrunt.hcl

:

中声明

locals {
  subnet_ids = data.aws_subnets.selected.ids
}

inputs = {
  subnet_ids              = local.subnet_ids
}