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<!DOCTYPE HTML>
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<title>Terraform代码的书写 · GitBook</title>
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Introduction
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Terraform初步体验
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Terraform命令行
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命令行配置文件
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apply
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console
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destroy
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fmt
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force-unlock
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get
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graph
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import
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init
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plan
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<h1 id="terraform代码的书写">Terraform代码的书写</h1>
<p>我们将在本章讲解Terraform配置文件的编写。</p>
<p>Terraform早期仅支持使用HCL(Hashicorp Configuration Language)语法的.tf文件，近些年来也开始支持json。HashiCorp甚至修改了他们的json解析器，使得他们的json可以支持注释，但HCL相比起JSON来说有着更好的可读性，所以我们还是会以HCL来讲解。其实我个人是不太喜欢用JSON编写Terraform代码的，有些团队使用JSON是因为他们是用其他代码来生成相应的JSON格式的Terraform代码(比如自研的GUI工具，通过拖拽的方式定义基础设施，继而生辰相关代码)。我个人不太喜欢这种方式，因为它鼓励用户从零开始拖拽出所需的所有基础设施，而不是通过组装成熟的可复用的模块代码。我个人认为应该像对待业务逻辑代码一样对待基础设施代码。</p>
<p>这里特别之处一点，我们将在这一章节提到模块(Module)的概念，但我们会在后续单独的章节专门讲解模块。在本章内，读者可以简单地将一个模块理解成一个含有多个Terraform代码文件的目录，不包含其子目录。</p>
<p>本章内容基本是对官方文档的翻译，英语阅读能力好的读者应该直接阅读官方文档获取最权威的信息。</p>
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