Author: Zen and the Art of Computer Programming
1 Introduction
TerraForm is an infrastructure automation tool that can automatically create, update, and delete cloud resource configurations on IT infrastructure (such as servers, network equipment, storage systems, etc.). Key benefits of Terraform include:
- Declarative syntax: TerraForm uses a descriptive language rather than a programming language to describe the desired resource state, which is an important difference from other automation tools.
- Rolling Releases: Terraform makes it easy to manage complex infrastructure and supports rolling deployments, the gradual deployment of new features or updates.
- Reusability: The highly modular code structure makes Terraform templates reusable, and you can extend Terraform's functionality through the public module library.
- Provides observability: Terraform provides detailed logging and visual output for every executed command, which is critical for tracking and troubleshooting issues.
This article will introduce some features, limitations and use cases of TerraForm in detail, hoping to help readers better understand TerraForm, a powerful tool.
Before the official start, this article assumes that readers are already familiar with cloud computing related knowledge, and understand the basic knowledge of computer network and server hardware architecture. At the same time, this article will not involve the installation and configuration process of TerraForm, but will only introduce its commonly used commands and parameters.
2. Basic concepts and terminology
2.1 Terraform Basics
Terraform is a tool for building, changing, and versioning infrastructure safely and efficiently. It works with popular cloud providers such as Amazon Web Services (AWS), Microsoft Azure, Google Cloud