AWS Terraform Modules

Reusable Terraform modules for AWS infrastructure based on production deployments in healthcare, financial services, and federal environments.

Modules

Three-Tier Network VPC

Multi-AZ VPC with public, private application, and isolated data tier segmentation.

View Documentation

module "vpc" {
  source = "github.com/nisha318/Terraform-Modules//modules/three-tier_AWS_Network_VPC"
  
  region       = "us-east-1"
  project_name = "my-app"
  vpc_cidr     = "10.0.0.0/16"
  
  public_subnet_az1_cidr       = "10.0.0.0/24"
  public_subnet_az2_cidr       = "10.0.1.0/24"
  private_app_subnet_az1_cidr  = "10.0.2.0/24"
  private_app_subnet_az2_cidr  = "10.0.3.0/24"
  private_data_subnet_az1_cidr = "10.0.4.0/24"
  private_data_subnet_az2_cidr = "10.0.5.0/24"
}

Features:

• Multi-AZ high availability
• Defense-in-depth network segmentation
• NAT Gateway per AZ
• VPC Flow Logs
• NIST 800-53 control implementation

Use Cases:

• Multi-tier web applications
• Microservices architectures
• HIPAA/PCI-DSS compliant workloads

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Security & Compliance

Modules implement controls for:

• NIST 800-53 (SC-7, AC-4, AU-2)
• DISA STIGs
• HIPAA technical safeguards

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Author: Nisha P. McDonnell, CISSP
Portfolio: github.com/nisha318