Enterprise Multi-Environment CI/CD Pipeline with Infrastructure as Code

Overview

Designed and implemented a comprehensive multi-environment CI/CD pipeline for a complex web application spanning microservices architecture. This enterprise-grade solution automated infrastructure provisioning, security scanning, and application deployment across development, staging, and production environments.

  • Infrastructure Architecture: 

The infrastructure was fully managed using Terraform with a robust three-stage validation process: initialization, validation, and security scanning using TFSec to ensure compliance with security best practices. All infrastructure components were provisioned across multiple AWS services including ECS, Lambda, API Gateway, CloudFront, and ECR.

  • Git Workflow Strategy: 

Implemented a sophisticated branching strategy with five-tier environment hierarchy:

    1. Master (Production): Stable releases with version tags
    2. Eval (Staging): Pre-production validation and UAT
    3. Release: Release candidate preparation and QA
    4. Develop: Main integration branch for feature consolidation
    5. Feature Branches: Isolated development workflows
    6. Hotfix: Emergency production fixes with automatic back-propagation

  • Container Strategy: 

    1. Built multi-architecture Docker images supporting both ARM64 (Graviton) and AMD64 instances using Docker Buildx.
    2. Implemented intelligent layer caching to reduce build times by 60%. Integrated Trivy security scanning for vulnerability assessment before ECR deployment.

  • Deployment Architecture:
    1. Frontend: React/Next.js applications deployed to CloudFront + s3 for Static code and ECS for server-side rendering
    2. Backend: Microservices distributed across ECS containers exposed using Application/Network load balancers and AWS Lambda functions
    3. API Layer: API Gateway managing service communication and routing
    4. Container Orchestration: Mixed ECS and EKS deployments using Helm charts

  • Security and Quality Assurance:

    1. Self-hosted SonarQube community edition on EC2 for static and dynamic code analysis
    2. AWS IAM roles with Web Identity Federation (no static credentials)
    3. Repository-specific access controls with branch-based permissions
    4. Dependabot integration for automated dependency vulnerability management
    5. TFSec for Terraform security validation

  • Performance Optimizations:

    1. Docker layer caching reduced build times from 15 minutes to 5 minutes
    2. Multi-architecture builds supporting cost-effective Graviton instances
    3. Automated artifact generation and storage in GitHub Actions
    4. Parallel deployment strategies across environments

  • Technology Stack:

    1. IaC: Terraform with TFSec security scanning
    2. CI/CD: GitHub Actions with custom workflows
    3. Containers: Docker with Buildx, ECR, Trivy scanning
    4. AWS Services: ECS, EKS, Lambda, API Gateway, CloudFront, EC2
    5. Security: SonarQube, Dependabot, IAM Web Identity Federation
    6. Orchestration: Helm charts for Kubernetes deployments

  • Achieved Outcomes:

    1. 90% reduction in deployment time across all environments
    2. Zero-downtime deployments with automated rollback capabilities
    3. 100% infrastructure compliance with security standards
    4. Eliminated manual configuration drift across environments
    5. Reduced security vulnerabilities by 85% through automated scanning

This pipeline successfully supported a development team of 15+ engineers with 50+ deployments per week while maintaining enterprise-grade security and reliability standards.

  • Core Skills:

    1. DevOps Engineering
    2. Infrastructure as Code (Terraform)
    3. CI/CD Pipeline Design
    4. AWS Cloud Architecture
    5. Container Orchestration (Docker, ECS, EKS)
    6. Security Integration and Scanning
    7. Git Workflow Management
    8. Performance Optimization

  • Technologies:

    1. AWS (ECS, EKS, Lambda, API Gateway, CloudFront, ECR, EC2)
    2. Terraform and TFSec
    3. GitHub Actions
    4. Docker and Buildx
    5. Helm
    6. SonarQube
    7. Trivy
    8. Dependabot

  • Key Achievements:

    1. Automated 100% of infrastructure provisioning
    2. Implemented enterprise-grade security scanning
    3. Achieved 90% deployment time reduction
    4. Zero security incidents post-implementation
    5. Successfully scaled to support 15+ developers with 50+ deployments per week
Architecture Diagram