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IaC Patterns Library

$49

Design patterns for Infrastructure as Code: modules, composition, testing, drift detection, and cost management.

📁 22 files🏷 v1.0.0

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📁 File Structure 22 files

infrastructure-as-code-patterns/ ├── LICENSE ├── README.md ├── guides/ │ └── iac-patterns.md ├── modules/ │ └── tags/ │ ├── main.tf │ └── variables.tf ├── patterns/ │ ├── ecs-fargate-service/ │ │ ├── main.tf │ │ ├── outputs.tf │ │ └── variables.tf │ ├── lambda-api/ │ │ ├── main.tf │ │ └── variables.tf │ ├── rds-aurora/ │ │ ├── main.tf │ │ └── variables.tf │ ├── static-site/ │ │ ├── main.tf │ │ └── variables.tf │ └── vpc-three-tier/ │ ├── main.tf │ ├── outputs.tf │ └── variables.tf ├── scripts/ │ └── tf-wrapper.sh └── terragrunt/ ├── environments/ │ ├── dev/ │ │ └── terragrunt.hcl │ └── prod/ │ └── terragrunt.hcl └── terragrunt.hcl

📖 Documentation Preview README excerpt

Infrastructure as Code Patterns

Production-ready Terraform patterns and Terragrunt configurations for AWS infrastructure.

[![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](LICENSE)

[![Terraform](https://img.shields.io/badge/Terraform-1.6+-purple.svg)]()

[![AWS](https://img.shields.io/badge/AWS-Provider%205.x-orange.svg)]()

Stop reinventing the wheel. Battle-tested IaC patterns for VPC, ECS, RDS, Lambda, and more.

What You Get

5 production Terraform patterns covering the most common AWS architectures
Reusable tagging module for consistent resource labeling across all stacks
Terragrunt configurations with DRY environment management (dev/prod)
Terraform wrapper script with locking, state management, and plan output
Comprehensive guide on IaC patterns, module design, state management, and cost estimation

File Tree


infrastructure-as-code-patterns/
├── README.md
├── manifest.json
├── LICENSE
├── patterns/
│   ├── vpc-three-tier/          # VPC with public/private/data subnets × 3 AZs
│   │   ├── main.tf
│   │   ├── variables.tf
│   │   └── outputs.tf
│   ├── ecs-fargate-service/     # ECS Fargate + ALB + auto-scaling
│   │   ├── main.tf
│   │   ├── variables.tf
│   │   └── outputs.tf
│   ├── rds-aurora/              # Aurora cluster with read replicas
│   │   ├── main.tf
│   │   └── variables.tf
│   ├── lambda-api/              # API Gateway + Lambda + DynamoDB
│   │   ├── main.tf
│   │   └── variables.tf
│   └── static-site/             # S3 + CloudFront + Route53 + ACM
│       ├── main.tf
│       └── variables.tf
├── modules/
│   └── tags/                    # Consistent tagging module
│       ├── main.tf
│       └── variables.tf
├── terragrunt/
│   ├── terragrunt.hcl           # Root Terragrunt config
│   └── environments/
│       ├── dev/terragrunt.hcl
│       └── prod/terragrunt.hcl
├── scripts/
│   └── tf-wrapper.sh            # Terraform wrapper script
└── guides/
    └── iac-patterns.md          # Patterns guide

... continues with setup instructions, usage examples, and more.

📄 Code Sample .sh preview

scripts/tf-wrapper.sh#!/usr/bin/env bash # ============================================================================ # Terraform Wrapper Script # Standardized Terraform workflow with locking, validation, and state management # ============================================================================ # Datanest Digital — datanest.dev # ============================================================================ set -euo pipefail # ── Configuration ─────────────────────────────────────────────────────────── SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" LOCK_TIMEOUT="${TF_LOCK_TIMEOUT:-5m}" PLAN_DIR="${TF_PLAN_DIR:-.plans}" LOG_DIR="${TF_LOG_DIR:-.logs}" TF_BINARY="${TF_BINARY:-terraform}" PARALLELISM="${TF_PARALLELISM:-10}" # Colors for output RED='\033[0;31m' GREEN='\033[0;32m' YELLOW='\033[1;33m' BLUE='\033[0;34m' NC='\033[0m' # No Color # ── Helper Functions ──────────────────────────────────────────────────────── log_info() { echo -e "${BLUE}[INFO]${NC} $(date '+%H:%M:%S') $*"; } log_ok() { echo -e "${GREEN}[OK]${NC} $(date '+%H:%M:%S') $*"; } log_warn() { echo -e "${YELLOW}[WARN]${NC} $(date '+%H:%M:%S') $*"; } log_error() { echo -e "${RED}[ERROR]${NC} $(date '+%H:%M:%S') $*" >&2; } usage() { cat <<EOF Usage: $(basename "$0") <command> [options] Terraform wrapper with standardized workflow, validation, and safety checks. Commands: init Initialize Terraform working directory

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