A comprehensive DevOps implementation featuring a Node.js e-commerce platform with enterprise-grade CI/CD pipeline, containerization, monitoring, and security hardening.
This project demonstrates a complete DevOps lifecycle implementation for a Node.js e-commerce application, featuring automated CI/CD pipelines, comprehensive monitoring stack, and production-ready infrastructure with security hardening.
┌─────────────────┐ ┌──────────────────┐ ┌─────────────────┐ │ Developer │───▶│ GitLab CI/CD │───▶│ Production │ │ Workstation │ │ Pipeline │ │ Environment │ └─────────────────┘ └──────────────────┘ └─────────────────┘ │ │ ┌────────┴────────┐ │ │ │ │ ┌───▼───┐ ┌───▼────┐ │ │ Dev │ │ Staging │ │ │ Env │ │ Env │ │ └───────┘ └────────┘ │ │ ┌─────────────── Monitoring Stack ──────────▼──────────┐ │ │ ┌───────▼────────┐ ┌──────────────┐ ┌─────────────┐ ┌───────────┐ │ Prometheus │ │ Grafana │ │ Loki │ │ Promtail │ │ (Metrics) │ │ (Dashboard) │ │ (Logs) │ │ (Shipper) │ └────────────────┘ └──────────────┘ └─────────────┘ └───────────┘
- Multi-environment deployments across Dev, Integration, and Production
- Automated builds with Docker containerization
- Infrastructure as Code using Ansible playbooks
- Manual approval gates for production deployments
- Prometheus for metrics collection and alerting
- Grafana for visualization and dashboards
- Loki for centralized log aggregation
- Promtail for log shipping and processing
- Docker & Docker Compose for container orchestration
- Nginx reverse proxy in containers with SSL termination
- Multi-environment networking with isolated Docker networks
- Health checks and auto-restart policies
- SSL/TLS encryption with Let's Encrypt certificates
- Security hardening achieving 85%+ security score
- Network isolation and firewall configurations
- Ansible automation for deployment and configuration management
- Systemd integration for service management
- Automated monitoring setup and configuration
| Category | Technologies |
|---|---|
| Application | Node.js, Express.js, MongoDB |
| Containerization | Docker, Docker Compose |
| Web Server | Nginx (Containerized Reverse Proxy) |
| CI/CD | GitLab CI/CD, Ansible |
| Monitoring | Prometheus, Grafana, Loki, Promtail |
| Security | Let's Encrypt SSL, fail2ban, UFW firewall |
| Infrastructure | Ubuntu Server, systemd |
├── 📱 Application Files │ ├── index.js # Main application entry point │ ├── package.json # Node.js dependencies │ ├── dockerfile # Multi-stage Docker build │ └── middleware/ # Prometheus metrics middleware │ ├── 🌐 Nginx Configuration │ ├── docker-compose.yml # Nginx container orchestration │ ├── conf.d/ │ │ ├── default.conf # Multi-environment routing │ │ └── status.conf # Nginx status endpoint │ └── ssl/ # SSL certificates location │ ├── 📊 Monitoring Stack │ ├── docker-compose.yml # Complete monitoring setup │ ├── prometheus/ │ │ └── prometheus.yml # Metrics collection config │ ├── grafana/ │ │ └── provisioning/ # Automated dashboard setup │ ├── loki/ │ │ └── loki.yml # Log aggregation config │ └── promtail/ │ └── promtail.yml # Log shipping configuration │ ├── 🚀 Deployment Automation │ ├── deployment_dev.yml # Development environment │ ├── deployment_integ.yml # Integration environment │ ├── deployment_prod.yml # Production environment │ ├── inventory_dev # Dev environment hosts │ ├── inventory_integ # Integration hosts │ ├── inventory_prod # Production hosts │ ├── tasks/ # Reusable Ansible tasks │ └── templates/ # Systemd service templates │ └── 🔧 CI/CD Pipeline ├── .gitlab-ci.yml # Complete CI/CD pipeline └── .env.docker # Environment configuration
- Multi-stage builds for optimized container images
- Non-root user implementation for security
- Health checks for container monitoring
- Resource limits and security constraints
- Network isolation between environments
- Automated testing and building on code push
- Multi-environment promotion (Dev → Integration → Prod)
- Container registry integration with GitLab Registry
- Rollback capabilities and deployment verification
- Manual approval for production deployments
- Application metrics exposed via custom Prometheus middleware
- Infrastructure monitoring with node-exporter
- Log aggregation from all containers and system logs
- Custom Grafana dashboards for different environments
- Alerting rules for critical system events
- SSL termination with automatic certificate renewal
- Load balancing across multiple application instances
- Security headers implementation
- Rate limiting and DDoS protection
- Health check endpoints for monitoring
- Environment-specific deployment playbooks
- Idempotent operations ensuring consistent deployments
- Secret management for sensitive configurations
- Service integration with systemd
- Network configuration automation
- Application Performance: Response times, throughput, error rates
- Infrastructure Health: CPU, Memory, Disk, Network usage
- Container Metrics: Docker container health and resource usage
- Nginx Analytics: Request patterns, response codes, performance
- Custom application metrics for business logic monitoring
- Infrastructure metrics via node-exporter
- Container metrics via cAdvisor
- Nginx metrics via nginx-exporter
- Application logs from all environments
- Infrastructure logs (system, kernel, auth)
- Container logs with automatic parsing
- Search and filtering capabilities in Grafana
# Required tools
- Docker & Docker Compose
- Ansible
- GitLab account (for CI/CD)
- Ubuntu Server 20.04+
🌟 Key Achievements
✅ Complete CI/CD Pipeline with multi-environment promotion
✅ Enterprise-grade monitoring with 15+ custom metrics
✅ Security hardening achieving 85%+ security score
✅ Zero-downtime deployments with health checks
✅ Centralized logging with 10GB+ daily log processing
✅ Container orchestration with 99.9%+ uptime
✅ Infrastructure automation reducing deployment time by 90%
📊 Performance Metrics
Metric Achievement
Deployment Time < 3 minutes (automated)
Application Response Time < 200ms average
System Uptime 99.9%+
Security Score 85%+ (Lynis audit)
Container Startup Time < 30 seconds
Log Processing Real-time with <1s latency
🔮 Future Enhancements
Kubernetes migration for advanced orchestration
Terraform integration for infrastructure provisioning
Advanced security scanning in CI/CD pipeline
Multi-region deployment for high availability
Machine learning for predictive monitoring
Service mesh implementation with Istio
📞 Connect With Me
LinkedIn: Ahmed Ben Rejeb
GitHub: Ahmed-BenRejeb
Email: benrejebahmed00@gmail.com
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This project demonstrates comprehensive DevOps skills including containerization, orchestration, monitoring, CI/CD automation, and infrastructure security. Perfect for showcasing modern DevOps practices and cloud-native application deployment.