A successful deployment is one that you don't have to manually touch. Automation and monitoring are your best friends in production.
1PM2: The Process Hero
PM2 doesn't just keep your app alive. It provides pm2 monit for real-time resource tracking and pm2 logs for centralized output. In cluster mode, it acts as a local load balancer, sharing traffic between multiple instances of your app.
2Secrets & Environment Variables
NEVER hardcode API keys or DB passwords. Use .env files (locally) and CI/CD secrets (in production). In Linux servers, you can set these in your user profile or directly within the PM2 ecosystem file.
3Production Monitoring
Tools like New Relic, Datadog, or Uptime Robot are essential. You need to know IF your server is down before your users do. Centralized logging with the ELK stack or Grafana Loki is the key to debugging production errors.
