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---
id: Terraform
title: "Terraform"
type: concept
tags:
- DevOps
- IaC
- AWS
- Infrastructure
last_updated: 2026-04-19
---
## Aliases
- Terraform
- IaC (Infrastructure as Code)
## Summary
- **定义**:基础设施即代码工具,通过声明式配置定义云资源
- **用途**跨云平台AWS、Azure、GCP管理基础设施
- **云迁移价值**:实现基础设施版本控制、可重复部署和环境一致性
## Key Details
- **核心概念**
- Provider云平台连接器aws、azurerm 等)
- Resource基础设施资源定义
- Data Source只读数据查询
- Variable输入变量
- Output输出值
- Module可复用配置单元
- **工作流程**
- init初始化 provider 和 backend
- plan预览变更
- apply执行变更
- destroy销毁资源
- **状态管理**
- 本地状态或远程状态S3、DynamoDB
- 状态锁防止并发冲突
## Terraform vs Terragrunt
- **Terraform**:底层 IaC 工具
- **Terragrunt**Terraform 包装器,提供模块变量共享、多环境管理、远程状态配置
## Connections
- [[TerraGrunt]] ← wraps ← [[Terraform]]
- [[Service-Catalog]] ← uses ← [[Terraform]]
- [[AWS]] ← managed_by ← [[Terraform]]
- [[Module]] ← implemented_by ← [[Terraform]]