Terragrunt with Terraform: Build Reusable DRY Infrastructure

Explore how Terraform enables infrastructure as code to create cloud resources across AWS, Azure, and Google Cloud by writing code, enabling automated, repeatable deployments with versioning and change tracking.

Learn how to create an AWS vpc using Terraform by selecting a provider, region, and resource name, then run Terraform init and apply to deploy infrastructure as code.

Identify the drawbacks of raw Terraform across multiple environments, accounts, and dependencies, and learn how Terragrunt enables DRY, reusable infrastructure.

Terragrunt extends Terraform to manage multi-environment infrastructure, reduce code duplication, and centralize configuration. It enables sharing code, defining environment specifics, and controlling dependencies across dev, staging, and production.

Download Terraform from the official site for your OS, extract the zip to C:\Terraform, and add the folder to PATH. Verify the installation by running terraform version.

Download Terragrunt from the release page, install the 64-bit Windows file, update the path, restart, and verify the version; then install and configure Terraform in Visual Studio.

download and install VS code on windows, launch the editor, and install the ashikov terraform extension to begin building reusable terraform workflows.

Execute terraform code from VS Code by creating main.tf in a demo folder, initializing with terraform init, and applying with terraform apply to display a welcome message.

Initialize and run Terragrunt with a basic configuration, connect Terragrunt to Terraform code via Terragon.HCL, pass a message variable from Terragrunt to Terraform, and troubleshoot caching by clearing it.

Install and verify aws cli v2 on windows, then access and test it from vs code to prepare to deploy aws infrastructure with terraform.

Create an IAM user with administrator access and generate access keys. Configure AWS credentials in VS Code using aws configure and verify access with get-caller-identity.

Create an AWS VPC using Terraform IaC by defining provider, VPC, and output files, initializing, planning, and applying changes, with VPC ID output and CIDR updates that replace the VPC.

Explore a Terraform and Terragrunt workflow to deploy resources across dev, uat, and prod, using reusable infrastructure modules and environment-specific configurations.

Organize infrastructure by environment and component with a modular terraform setup using main.tf, variable.tf, and output.tf to define a VPC, using variables for CIDR blocks across prod and UAT environments.

Define a reusable AWS VPC and subnet in Terraform using variables for CIDR and tags. Expose VPC ID and subnet ID as outputs.

Learn how to dynamically generate Terraform files with Terragrunt's generate feature, defining a root.hcl with provider and remote state configuration, and creating backend.tf and provider.tf for environment-specific infrastructure.

Define a root hcl to reuse common configurations and avoid duplication; use environment-specific tarragon.hcl for vpc, include provider and state, and specify cidr and tags.

Explore Terragrunt with Terraform to manage shared modules and remote backends, initialize and validate plans, and apply changes that create a dev VPC and subnet.

Learn to pass variables across modules and deploy resources to a uat environment using terragrunt and terraform, including copying the dev vpc to uat and prod.

Demonstrate environment isolation for prod by configuring prod Taragon HCL, initializing and planning, then applying to create a prod VPC and subnet with outputs for VPC ID and subnet ID.

Perform an end-to-end terragrunt demo to build AWS infrastructure across environments, establishing dependencies from IAM to VPC, subnet, and EKS. Set up shared configuration and module files to coordinate resources.

Build a real-world multi-environment infrastructure with terragrunt and terraform by organizing vpc, subnet, iam, and eks into modules, each with main.tf, variable.tf, and output.tf, across dev and uat environments.

Create an iam role for eks, configure vpc and subnet cidr blocks, and expose arns and vpc ids outputs to support a multi-stack Terragrunt Terraform workflow.

Update the root to define remote state and provider details for shared use across environments, using Terragrunt to generate back-end.tf and provider.tf with an s3 backend.

Configure Terragrunt and Terraform to build reusable, DRY infrastructure by defining root files, modules, and environment-specific inputs for IAM, VPC, subnets, and EKS, with mock outputs for plan and validate.

Deploy dev infrastructure with Terragrunt by initializing, validating, and planning in the dev folder, including VPC, IAM, and subnet dependencies.

Learn to use Terragrunt init all, plan all, apply all, and destroy all to run multi-directory infrastructure, managing dependencies and state files for IAM, VPC, subnet, and EKS.

Terragrunt apply-all validates vpc, iam, and subnet configurations before provisioning. It creates two subnets and an eks cluster, which becomes up and running in the portal.

Run Terragrunt destroy --all to delete all resources across VPC, subnet, IAM, and ekz, and verify cleanup by refreshing the cluster and confirming no resources remain.