Terraform Guides and Tutorials

How to Use Terraform Flatten Function [Examples]

Learn what Terraform flatten function is and how to use it. See examples with a list of lists and others.

How to Create API Gateway Using Terraform & AWS Lambda

Learn how to deploy serverless applications with AWS Lambda and API Gateway using Terraform. Cognito Authorizer, custom domain and enabling CORS.

Terraform15 min read

What is Terrascan? Features, Use Cases & Custom Policies

See what Terrascan is, its features, and how to use it to scan your IaC code with use case examples. Terrascan vs Checkov vs tfsec.

Terraform11 min read

How to Deploy AWS Auto Scaling Group with Terraform

Learn what Autoscaling Groups are and how to manage and deploy AWS Auto Scaling Group with Terraform. See example.

Terraform16 min read

How to Create an AWS RDS Instance Using Terraform

Learn how to create and manage AWS RDS instances with Terraform. See examples including configuring monitoring, performance insights, and encription.

Terraform7 min read

How to Use Terraform Merge Function – Examples

See how to use Terraform merge function with maps, lists of objects, lists of maps and tags. Take a look at the examples.

Terraform20 min read

What is Terratest and How to Use it

Learn what Terratest is, how it works, and how to use it to write tests. See examples in the development workflow.

Terraform14 min read

Terraform Map Variable – What It is & How to Use

What is a map variable in Terraform? See examples. The difference between map(string) and map(object).

Terraform17 min read

How to Use Terraform For_Each Meta-Argument [Examples]

In this tutorial you'll learn what is Terraform for_each meta-argument and how to use it. See example with map, set, list, modules and data sources.

Terraform19 min read

Crossplane vs Terraform – IaC Tools Comparison

See the comparison of Terraform and Crossplane. Find out what is the difference between them and the advantages of using one over the other.

Terraform22 min read

Terragrunt Tutorial – Getting Started & Examples

What is Terragrunt, how does it work, and what are its features? Learn how to install and set up the configuration. See use cases and examples.

Terraform5 min read

How to Create & Use Gitignore File With Terraform

Learn what gitignore is, how to use it with Terraform, and which Terraform files you can include in .gitignore. See example.

Terraform12 min read

How to Create AWS IAM Role with Terraform [Step-by-Step]

In this step-by-step tutorial, you'll learn how to create an AWS IAM Role using Terraform with AWS Terraform provider. See an example.

General18 min read

Why You Shouldn’t Manage Terraform with Generic CI/CD Tools

See how you can use GitHub Actions, Azure DevOps, and Jenkins to create CI/CD pipelines for deploying Terraform code and the limitations they present.

Terraform7 min read

Terraform Target Flag: How to Target Resources in Terraform

Learn what Terraform flag option is and how to use it with modules and plan, apply, and destroy commands. See examples and when to avoid using this flag.

Terraform13 min read

What is TFLint and How to Lint Your Terraform Code

Learn what TFLint is and how to use it with examples. See the details of the .tflint.hcl file. Look into linting, what it is, and why to lint your Terraform code.

Terraform18 min read

How to Deploy an AWS ECS Cluster with Terraform [Tutorial]

In this step-by-step guide, you'll learn how to set up an ECS cluster of EC2 instances using Terraform. See examples and Terraform ECS task definition.