Modular AWS Infrastructure With Terraform: 2-Tier VPC, CIS-Hardened EC2, OIDC CI/CD, and a $6 Sprint Model

infra-core is a production-grade AWS infrastructure platform built with Terraform 1.7, Ansible, and GitHub Actions. It provisions a complete multi-environment AWS stack — 2-tier VPC, EC2 Auto Scaling Group, RDS PostgreSQL, ALB, SSM-based secrets, CloudWatch observability, and a fully automated CI/CD pipeline using OIDC federation.

This article documents the system as built: architecture, module design, security decisions, configuration management, and the cost model that makes it viable for portfolio and proof-of-concept use.

Repo: cypher682/infra-core

Architecture

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