A complete observability stack with Prometheus (metrics), Loki (logs), Jaeger (traces), and Grafana (visualization) deployed on AWS EC2 with GitHub Actions CI/CD.

• Real-time metrics collection with Prometheus
• Centralized logging with Loki
• Distributed tracing with Jaeger
• Beautiful dashboards with Grafana
• Automated CI/CD pipeline with GitHub Actions
• Infrastructure-as-Code using Docker Compose
• Sample Node.js application for demo purposes

• AWS EC2 instance (Ubuntu 22.04 recommended)
• Docker & Docker Compose installed
• GitHub account

1. Clone the repository

   git clone https://github.com/your-username/devops-observability-system.git
   cd devops-observability-system

2. **Configure GitHub Secrets

• SSH_PRIVATE_KEY: Your EC2 .pem key
• EC2_IP: Your EC2 public IP
• KNOWN_HOSTS: Output of ssh-keyscan <EC2_IP>

3. ** Push to GitHub (auto-deploys via GitHub Actions)

   git add .
   git commit -m "Initial commit"
   git push origin main

graph TD
    A[Node.js App] -->|Metrics| B(Prometheus)
    A -->|Logs| C(Loki)
    A -->|Traces| D(Jaeger)
    B --> E[Grafana]
    C --> E
    D --> E
    F[GitHub Actions] -->|CI/CD| G[EC2 Instance]