terraform-infrastructure

SKILL.md

Terraform Infrastructure

Table of Contents

Overview

When to Use

Quick Start

Reference Guides

Best Practices

Overview

Build scalable infrastructure as code with Terraform, managing AWS, Azure, GCP, and on-premise resources through declarative configuration, remote state, and automated provisioning.

When to Use

Cloud infrastructure provisioning

Multi-environment management (dev, staging, prod)

Infrastructure versioning and code review

Cost tracking and resource optimization

Disaster recovery and environment replication

Automated infrastructure testing

Cross-region deployments

Quick Start

Minimal working example:

# terraform/main.tf
terraform {
  required_version = ">= 1.0"

  required_providers {
    aws = {
      source  = "hashicorp/aws"
      version = "~> 5.0"
    }
  }

  # Remote state configuration
  backend "s3" {
    bucket         = "terraform-state-prod"
    key            = "prod/terraform.tfstate"
    region         = "us-east-1"
    encrypt        = true
    dynamodb_table = "terraform-locks"
  }
}

provider "aws" {
  region = var.aws_region

  default_tags {
// ... (see reference guides for full implementation)

Reference Guides

Detailed implementations in the references/ directory:

Guide
Contents

AWS Infrastructure Module
AWS Infrastructure Module

Variables and Outputs
Variables and Outputs

Terraform Deployment Script
Terraform Deployment Script

Best Practices

✅ DO

Use remote state (S3, Terraform Cloud)

Implement state locking (DynamoDB)

Organize code into modules

Use workspaces for environments

Apply tags consistently

Use variables for flexibility

Implement code review before apply

Keep sensitive data in separate variable files

❌ DON'T

Store state files locally in git

Use hardcoded values

Mix environments in single state

Skip terraform plan review

Use root module for everything

Store secrets in code

Disable state locking

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