Update nexus: fix conflicts and sync local changes
This commit is contained in:
Shen Wei
@@ -1,100 +1,100 @@
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---
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title: "Terragrunt"
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type: entity
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tags:
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- devops
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- iac
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- terraform
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- automation
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created: 2026-04-26
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---
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# Terragrunt
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## Definition
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Terragrunt 是由 Gruntwork 开发的**Terraform 轻量封装工具**，核心目标是贯彻 DRY（Don't Repeat Yourself）原则，简化多环境、多账户 Terraform 配置的管理。
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## Core Value
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Terragrunt 对 Terraform 的核心改进在于**减少重复配置**：
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| 问题 | Terraform 方案 | Terragrunt 方案 |
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|------|---------------|----------------|
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| provider 块重复 | 每个环境独立声明 | `terragrunt.hcl` 统一管理 |
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| remote_state 块重复 | 多处硬编码 | 模板化复用 |
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| 模块引用方式 | 固定分支引用 | 版本锁定引用 |
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| 多环境同步 | 手动复制配置 | `include` 块继承 |
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**来源**: [[ctp-topic-48-terraform-vs-terragrunt]]
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## Compatibility
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Terragrunt **完全兼容** Terraform 的所有命令和 HCL 语法：
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- `terragrunt plan` → 底层调用 `terraform plan`
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- `terragrunt apply` → 底层调用 `terraform apply`
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- 所有 Terraform HCL 块和属性完全兼容
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这意味着 Terragrunt **不是** Terraform 的替代品，而是增强层。
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**来源**: [[ctp-topic-48-terraform-vs-terragrunt]]
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## Key Features
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### DRY Remote State
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通过 `remote_state` 块集中管理状态文件位置：
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```hcl
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remote_state {
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backend = "s3"
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config = {
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bucket = "my-terraform-state"
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key = "${path_relative_to_include()}/terraform.tfstate"
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region = "eu-west-1"
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encrypt = true
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}
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}
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```
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### Provider Management
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跨环境统一 provider 配置，避免在每个模块中重复声明。
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### Include & Inheritance
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通过 `include` 块实现配置的继承与覆盖：
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```hcl
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include {
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path = find_in_parent_folders("root.hcl")
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}
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```
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## Use Case: Micro Focus Labs Landing Zone
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Micro Focus Labs Landing Zone 使用 Terragrunt 管理多账户配置，所有资源通过 Terraform/Terragrunt 管理，Jenkins 流水线扫描 GitHub 仓库变更触发 plan/apply。
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**来源**: [[ctp-topic-3-deploy-and-maintain-infrastructure]], [[ctp-topic-25-labs-landing-zone-overview-itom-teams]]
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## Ecosystem Position
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```
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Terraform Ecosystem
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├── Terraform (HashiCorp) — 核心 IaC 引擎
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├── Terragrunt (Gruntwork) — DRY 封装层 ←
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├── Terraform Enterprise (HashiCorp) — 企业 CI 平台
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└── Gruntwork Library (Gruntwork) — 预建模块库
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```
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## Related Entities
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- [[Terraform]] — Terragrunt 包装的核心引擎
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- [[HashiCorp]] — Terraform 创立公司
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- [[Gruntwork]] — Terragrunt 开发公司
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## Related Concepts
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- [[Infrastructure-as-Code]] — Terragrunt 的应用领域
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- [[DRY Principle]] — Terragrunt 的设计哲学
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## Related Sources
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- [[ctp-topic-48-terraform-vs-terragrunt]]
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- [[ctp-topic-3-deploy-and-maintain-infrastructure]]
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- [[ctp-topic-15-working-with-renovatebot]]（Renovate Bot 扫描 Terragrunt 配置）
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---
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title: "Terragrunt"
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type: entity
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tags:
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- devops
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- iac
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- terraform
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- automation
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created: 2026-04-26
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---
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# Terragrunt
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## Definition
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Terragrunt 是由 Gruntwork 开发的**Terraform 轻量封装工具**，核心目标是贯彻 DRY（Don't Repeat Yourself）原则，简化多环境、多账户 Terraform 配置的管理。
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## Core Value
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Terragrunt 对 Terraform 的核心改进在于**减少重复配置**：
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| 问题 | Terraform 方案 | Terragrunt 方案 |
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|------|---------------|----------------|
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| provider 块重复 | 每个环境独立声明 | `terragrunt.hcl` 统一管理 |
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| remote_state 块重复 | 多处硬编码 | 模板化复用 |
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| 模块引用方式 | 固定分支引用 | 版本锁定引用 |
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| 多环境同步 | 手动复制配置 | `include` 块继承 |
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**来源**: [[ctp-topic-48-terraform-vs-terragrunt]]
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## Compatibility
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Terragrunt **完全兼容** Terraform 的所有命令和 HCL 语法：
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- `terragrunt plan` → 底层调用 `terraform plan`
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- `terragrunt apply` → 底层调用 `terraform apply`
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- 所有 Terraform HCL 块和属性完全兼容
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这意味着 Terragrunt **不是** Terraform 的替代品，而是增强层。
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**来源**: [[ctp-topic-48-terraform-vs-terragrunt]]
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## Key Features
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### DRY Remote State
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通过 `remote_state` 块集中管理状态文件位置：
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```hcl
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remote_state {
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backend = "s3"
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config = {
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bucket = "my-terraform-state"
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key = "${path_relative_to_include()}/terraform.tfstate"
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region = "eu-west-1"
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encrypt = true
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}
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}
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```
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### Provider Management
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跨环境统一 provider 配置，避免在每个模块中重复声明。
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### Include & Inheritance
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通过 `include` 块实现配置的继承与覆盖：
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```hcl
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include {
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path = find_in_parent_folders("root.hcl")
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}
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```
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## Use Case: Micro Focus Labs Landing Zone
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Micro Focus Labs Landing Zone 使用 Terragrunt 管理多账户配置，所有资源通过 Terraform/Terragrunt 管理，Jenkins 流水线扫描 GitHub 仓库变更触发 plan/apply。
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**来源**: [[ctp-topic-3-deploy-and-maintain-infrastructure]], [[ctp-topic-25-labs-landing-zone-overview-itom-teams]]
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## Ecosystem Position
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```
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Terraform Ecosystem
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├── Terraform (HashiCorp) — 核心 IaC 引擎
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├── Terragrunt (Gruntwork) — DRY 封装层 ←
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├── Terraform Enterprise (HashiCorp) — 企业 CI 平台
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└── Gruntwork Library (Gruntwork) — 预建模块库
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```
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## Related Entities
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- [[Terraform]] — Terragrunt 包装的核心引擎
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- [[HashiCorp]] — Terraform 创立公司
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- [[Gruntwork]] — Terragrunt 开发公司
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## Related Concepts
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- [[Infrastructure-as-Code]] — Terragrunt 的应用领域
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- [[DRY Principle]] — Terragrunt 的设计哲学
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## Related Sources
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- [[ctp-topic-48-terraform-vs-terragrunt]]
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- [[ctp-topic-3-deploy-and-maintain-infrastructure]]
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- [[ctp-topic-15-working-with-renovatebot]]（Renovate Bot 扫描 Terragrunt 配置）
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