Variables
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What is Variables?
Terraform uses variables to make configurations more flexible and reusable. Variables can be declared in .tf files and assigned values through various methods, including default values, command-line flags, environment variables, or separate .tfvars files. They support multiple data types such as string, number, bool, list, and map. Variables can be referenced throughout the configuration using the var prefix. This system enables infrastructure as code to be more dynamic and adaptable to different environments or use cases.
Free resources to learn Variables
- Official docsInput Variables
- ArticleHow To Use Terraform Variables
- VideoLearn How to Use Terraform Variable
More in stage 7: Variables
Variables: common questions
Can I learn Variables in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Variables in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Variables tutorial for beginners?
It is lesson 28 of 110 in the free Terraform roadmap, in stage 7, Variables. If you are new to Terraform, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.