GCP Infrastructure Hardening Architecture 🚀

This project focuses on building a hardened Google Cloud Platform (GCP) infrastructure aligned to industry benchmarks (CIS, NIST), reducing attack surface, enforcing strong IAM, and implementing scalable security automation using Terraform and Policy as Code.

Business Goal

• Defense-in-depth network security
• IAM hardening with least privilege
• Secure CI/CD pipelines with policy checks
• Continuous monitoring and threat detection
• Infrastructure compliance automation

Architecture Overview

• Custom project factory with Terraform modules
• Centralized Cloud Logging & Monitoring
• VPC Service Controls for data isolation
• Private Google Access for APIs & services
• Org policies to enforce security guardrails
• OPA Gatekeeper for Policy-as-Code controls
• Secure CI/CD pipelines (IaC + DevSecOps)

Tools & Technologies

• GCP IAM, Cloud VPC, VPC Service Controls, Cloud Armor
• Cloud Key Management (KMS)
• Cloud Logging & Monitoring (Stackdriver)
• Terraform (IaC)
• OPA Gatekeeper (Policy as Code)

Security Controls Implemented

• IAM hardening with least privilege and role separation
• Service Control isolation of sensitive APIs
• Policy enforcement via OPA Gatekeeper
• Audit logging with retention policies
• Threat detection and continuous monitoring

Implementation Details

The project used modular Terraform to automate GCP resource provisioning with built-in compliance guardrails. Secure CI/CD pipelines integrated policy checks and required peer review for infrastructure changes. Monitoring and alerting pipelines ensured real-time visibility into environment health.

Business Impact

• Reduced configuration drift across GCP environments
• Improved compliance reporting (CIS, NIST)
• Faster delivery cycles with secure automation
• Enhanced visibility into cloud security posture