24/7 Discord Bot Hosting on Linux: Production Deployment with PM2 Process Manager

Published: 2026-10-09 · 5 min read

When building a Discord bot withdiscord.js(Node.js) ordiscord.py(Python), keeping it running reliably 24/7 is essential. Starting a bot in a regular SSH session terminates the process as soon as the terminal disconnects or an unhandled exception occurs.

1. What Is PM2 and Why Does It Outperform Screen/Tmux?

ThePM2process manager provides a complete production runtime for bots and microservices:

Automatic Crash Recovery:If your bot throws an unhandled exception (e.g. a Discord API500 Internal Server Error), PM2 restarts the process within milliseconds.
Systemd Boot Persistence:Native integration withsystemdensures your bots start automatically whenever the host machine reboots.
Real-Time Resource Telemetry:Live CPU usage, RAM threshold restarts, and log rotation.

2. Installing Node.js & PM2

# Instalacja Node.js LTS oraz PM2 globalnie
sudo apt update && sudo apt install nodejs npm -y
sudo npm install -g pm2

3. Creating the Process Manifest (`ecosystem.config.js`

Rather than passing flags manually on the CLI, define a declarative manifest in your project root:

module.exports = {
  apps: [{
    name: 'mermiko-discord-bot',
    script: 'src/index.js',
    instances: 1,
    autorestart: true,
    watch: false,
    max_memory_restart: '500M',
    env: {
      NODE_ENV: 'production'
    },
    error_file: './logs/err.log',
    out_file: './logs/out.log',
    log_date_format: 'YYYY-MM-DD HH:mm:ss'
  }]
};

4. Launching & Enabling Systemd Startup

Deploy and persist your bot with three commands:

# Uruchomienie aplikacji z manifestu
pm2 start ecosystem.config.js

# Zapisanie bieżącej listy procesów
pm2 save

# Wygenerowanie i wdrożenie skryptu systemd
pm2 startup

You can inspect your bot's health and live logs anytime usingpm2 statusandpm2 logs mermiko-discord-bot.

Also read

Article RSS Hosting & tools