Node App with PM2 Cluster

PM2 - Cluster Mode

Make sure your application is stateless: share database/cache, cronjob

Create ecosystem.config.js at root

// https://pm2.keymetrics.io/docs/usage/application-declaration/
// # Start all applications
// pm2 start ecosystem.config.js
//
// # Stop all
// pm2 stop ecosystem.config.js
//
// # Restart all
// pm2 restart ecosystem.config.js
//
// # Reload all
// pm2 reload ecosystem.config.js
//
// # Delete all
// pm2 delete ecosystem.config.js
module.exports = {
  apps: [{
    name: "nestjs-prod",
    script: "./dist/main.js", // cluster mode run with node only, not npm
    args: "",
    exec_mode : "cluster", // default fork
    instances: 2, //"max",
    kill_timeout : 4000,
    wait_ready: true,
    autorestart: true,
    watch: false,
    max_memory_restart: "1G",
    log_date_format : "YYYY-MM-DD HH:mm Z",
    env: {
      NODE_ENV: "prod"
    },
  }]
};