변수 및 출력값

유연한 구성

입력 변수: 유연성

변수 선언

variable "file_content" {
  description = "Content to write to a local file."
  type        = string
}

유형과 기본값

variable "environment" {
  description = "The deployment environment (e.g., dev, prod)."
  type        = string
  default     = "dev"
}

variable "instance_count" {
  description = "Number of instances."
  type        = number
  default     = 1
}

코드에서 변수 사용

resource "local_file" "example" {
  content  = "Hello from ${var.environment}!"
  filename = "example-${var.environment}.txt"
}

값을 제공하는 방법

# terraform.tfvars
environment = "staging"
file_content = "This is some custom content."

출력값: 정보 추출

출력 값 선언

output "file_name" {
  description = "The name of the generated local file."
  value       = local_file.example.filename
}

출력 값 확인

# After 'terraform apply', run:
terraform output file_name

변수와 출력 값 활용

# main.tf
terraform {
  required_providers {
    local = {
      source = "hashicorp/local"
      version = "~> 2.1"
    }
  }
}

resource "local_file" "message" {
  content  = var.greeting_message
  filename = "hello_${var.env}.txt"
}

# variables.tf
variable "greeting_message" {
  description = "The message content for the file."
  type        = string
  default     = "Hello CoddyKit!"
}

variable "env" {
  description = "Environment name."
  type        = string
  default     = "dev"
}

# outputs.tf
output "generated_filename" {
  description = "The full path of the generated file."
  value       = local_file.message.filename
}

output "file_content_used" {
  description = "The content actually written to the file."
  value       = local_file.message.content
}

빠른 확인: 변수와 출력 값

복습: 변수와 출력 값