Bare Metal Overview

Process Managers

Supervisor (Python Ecosystem)

sudo apt install supervisor
sudo cp snapcode.conf /etc/supervisor/conf.d/
sudo supervisorctl start snapcode

✅ Native Python, simple INI config, auto-restart, log management

PM2 (JavaScript Ecosystem)

npm install -g pm2
pm2 start server.py --name snapcode --interpreter python3
pm2 save && pm2 startup

✅ Cluster mode, zero-downtime reload, built-in monitoring

Reverse Proxies

Why Reverse Proxy?

Client → Reverse Proxy → Backend Server(s)

Benefits: SSL termination, load balancing, caching, security

Comparison

Feature	Nginx	Traefik	HAProxy
Performance	High	Medium	Highest
Config	Simple	YAML	Complex
Auto SSL	Manual	✅ Built-in	Manual
Docker	Manual	✅ Auto	Manual
Best for	General	Microservices	High traffic

Recommended Stacks

Stack	Components	Best For
Simple	Supervisor + Nginx	Easy to learn, production ready
Modern	PM2 + Traefik	Auto SSL, zero-downtime
Performance	Supervisor + HAProxy	Maximum performance, enterprise

Quick Start: Nginx + Supervisor

# 1. Start app with Supervisor
sudo supervisorctl start snapcode

# 2. Setup Nginx
sudo cp snapcode.conf /etc/nginx/sites-available/
sudo ln -s /etc/nginx/sites-available/snapcode.conf /etc/nginx/sites-enabled/
sudo nginx -t && sudo systemctl reload nginx

# 3. Setup SSL
sudo certbot --nginx -d snapcode.yourdomain.com