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Terraformer - Generate Terraform from Existing Cloud Infrastructure
Terraformer is a CLI tool that generates terraform files from existing infrastructure (reverse Terraform). It allows you to import your existing cloud resources into Terraform, enabling infrastructure as code management for resources created manually or by other means.
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Added on 2025年6月5日13,673
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LanguageProject Introduction
Summary
Terraformer is an open-source command-line utility developed by Google Cloud that simplifies the process of importing existing cloud infrastructure into Terraform. It effectively performs a 'reverse Terraform' operation, converting live cloud resources into Terraform code and state files.
Problem Solved
Managing cloud infrastructure often involves existing resources not defined in Infrastructure as Code (IaC). Manually creating Terraform configurations and state for these resources is tedious, time-prone, and prone to errors. Terraformer automates this process, allowing users to quickly bring existing infrastructure under Terraform management.
Core Features
Multi-Cloud Provider Support
Supports multiple major cloud providers, including AWS, GCP, Azure, and more, allowing migration and management of diverse infrastructure.
Granular Resource Filtering
Allows filtering resources by type, region, tags, or IDs to import only specific parts of your infrastructure.
State File Generation
Generates Terraform state files (`terraform.tfstate`) alongside the `.tf` configuration files, enabling direct management with Terraform.
Customizable Output
Provides options to customize the output structure, file naming conventions, and resource naming within the generated configuration.
Tech Stack
Go
Terraform
AWS SDK
Azure SDK
GCP SDK
Use Cases
Terraformer is invaluable in various scenarios where existing cloud infrastructure needs to be managed using Terraform.
Migrating Existing Infrastructure to Terraform
Details
Import cloud resources that were manually provisioned into a Terraform managed state to enable consistent management and version control.
User Value
Saves significant time and effort compared to manually writing Terraform code and state, reducing the risk of errors.
Infrastructure Documentation and Backup
Details
Generate Terraform configurations as a backup representation of your current infrastructure for disaster recovery planning or documentation purposes.
User Value
Provides an up-to-date, machine-readable documentation of your cloud environment and can be used to rebuild infrastructure if needed.
Auditing and Analysis of Cloud Resources
Details
Analyze and understand the configuration of existing cloud resources by generating human-readable and structured Terraform code.
User Value
Simplifies the process of reviewing large or complex cloud environments and identifying potential inconsistencies or misconfigurations.
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