Getting started with Terraform functions — V1.0
<blockquote>
<p>When I first started with Terraform to write configuration to deploy infrastructure on AWS and GCP, I did not know how powerful Terraform is.<br />
I wrote configuration code like an armature — repeated code blocks, hardcoded values, bloated and inflexible infrastructure configuration code.</p>
<p>It took me a while to start using Terraform’s built-in functions, and everything changed. I learned to leverage Terraform functions in my configuration code. My terraform code got 10x more flexible, manageable, readable, scalable, and DRY.</p>
</blockquote>
<h1>Let's get started with Terraform functions</h1>
<p>The Terraform language includes several built-in functions that you can call from within expressions to transform and combine values.</p>
<blockquote>
<p>Note: The Terraform language does not support user-defined functions, and so only the functions built into the language are available for use.</p>
</blockquote>
<h1>The most commonly used Terraform function</h1>
<h1>List functions</h1>
<ul>
<li><code><strong>formatlist()</strong></code><strong>: formatlist produces a list of strings by formatting a number of other values according to a specification string.</strong></li>
</ul>
<p>It’s particularly useful when you want to create a formatted string by combining elements from a list, and you want to apply a consistent formatting pattern to those elements.</p>
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