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[英]Difference between *.tfvars file and passing values in main.tf in terraform
[英]Terraform command is not using the values from the tfvars file provide with --var-file
我在 Terraform 中很新,试图在我的应用程序的每个环境(dev、stg、prod)下为每个 AWS 区域创建单独的后端。 因此,我使用单独的.config
文件来配置单独的后端,并使用单独.tfvars
文件在相关环境/区域上创建资源。
我正在详细说明以下所有内容:
文件夹结构:
.
├── config
│ ├── stg-useast1.config
│ ├── stg-uswest2.config
│ ├── prod-useast1.config
│ └── prod-uswest2.config
├── vars
│ ├── stg-useast1.tfvars
│ ├── stg-uswest2.tfvars
│ ├── prod-useast1.tfvars
│ └── prod-useast1.tfvars
└── modules
├── backend.tf
├── main.tf
├── variables.tf
└── module-ecs
├── main.tf
└── variables.tf
此问题所需的文件内容如下所示(仅一个区域):
./config/stg-useast1.config
profile = "myapp-stg"
region = "us-east-1"
bucket = "myapp-tfstate-stg-useast1"
key = "myapp-stg-useast1.tfstate"
dynamodb_table = "myapp-tfstate-stg-useast1-lock"
./vars/stg-useast1.tfvars
environment = "stg"
app_name = "myapp-ecs"
aws_region = "us-east-1"
aws_profile = "myapp-stg"
./modules/backend.tf
terraform {
backend "s3" {
}
}
./modules/main.tf
provider "aws" {
region = var.aws_region
shared_credentials_files = ["~/.aws/credentials"]
profile = var.aws_profile
}
module "aws-ecr" {
source = "./ecs"
}
./modules/variables.tf
variable "app_name" {}
variable "environment" {}
variable "aws_region" {}
variable "aws_profile" {}
./modules/module-ecs/main.tf
resource "aws_ecr_repository" "aws-ecr" {
name = "${var.app_name}-${var.environment}-ecr"
tags = {
Name = "${var.app_name}-ecr"
Environment = var.environment
}
}
./modules/module-ecs/variables.tf
variable "app_name" {
default = "myapp-ecs"
}
variable "environment" {
default = "stg"
}
variable "aws_region" {
default = "us-east-1"
}
variable "aws_profile" {
default = "myapp-stg"
}
terraform init
进展顺利。
$ terraform init --backend-config=../config/stg-useast1.config
Initializing modules...
Initializing the backend...
Initializing provider plugins...
- Reusing previous version of hashicorp/aws from the dependency lock file
- Using previously-installed hashicorp/aws v4.31.0
Terraform has been successfully initialized!
我运行terraform plan
如下:
terraform plan --var-file=../vars/stg-useast1.tfvars
但它没有使用此.tfvars
文件中的值。 我必须在./modules/module-ecs/variables.tf
中为每个变量提供它们作为default = <value>
。
如何使用带有terraform plan
命令的.tfvars
文件?
欢迎任何重组建议。
您创建的本地模块不继承变量。 您需要将它们传递进来。例如:
module "aws-ecr" {
source = "./ecs" # in your example it looks like the folder is ecs-module?
app_name = var.app_name
environment = var.environment
aws_region = var.region
aws_profile = var.profile
}
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