terraform-module-library

1# Terraform Module Library
2 
3Production-ready Terraform module patterns for AWS, Azure, GCP, and OCI infrastructure.
4 
5## Purpose
6 
7Create reusable, well-tested Terraform modules for common cloud infrastructure patterns across multiple cloud providers.
8 
9## When to Use
10 
11- Build reusable infrastructure components
12- Standardize cloud resource provisioning
13- Implement infrastructure as code best practices
14- Create multi-cloud compatible modules
15- Establish organizational Terraform standards
16 
17## Module Structure
18 
19```
20terraform-modules/
21├── aws/
22│   ├── vpc/
23│   ├── eks/
24│   ├── rds/
25│   └── s3/
26├── azure/
27│   ├── vnet/
28│   ├── aks/
29│   └── storage/
30├── gcp/
31│   ├── vpc/
32│   ├── gke/
33│   └── cloud-sql/
34└── oci/
35    ├── vcn/
36    ├── oke/
37    └── object-storage/
38```
39 
40## Standard Module Pattern
41 
42```
43module-name/
44├── main.tf          # Main resources
45├── variables.tf     # Input variables
46├── outputs.tf       # Output values
47├── versions.tf      # Provider versions
48├── README.md        # Documentation
49├── examples/        # Usage examples
50│   └── complete/
51│       ├── main.tf
52│       └── variables.tf
53└── tests/           # Terratest files
54    └── module_test.go
55```
56 
57## AWS VPC Module Example
58 
59**main.tf:**
60 
61```hcl
62resource "aws_vpc" "main" {
63  cidr_block           = var.cidr_block
64  enable_dns_hostnames = var.enable_dns_hostnames
65  enable_dns_support   = var.enable_dns_support
66 
67  tags = merge(
68    {
69      Name = var.name
70    },
71    var.tags
72  )
73}
74 
75resource "aws_subnet" "private" {
76…