How to Deploy Dokploy on an Ubuntu Server and Create Your First "Hello World" in Node.js

Introduction Dokploy is a self-hosted deployment platform that simplifies containerized application management using Docker Swarm. In this comprehensive tutorial, I'll show you how to install Dokploy on an Ubuntu server, configure security with firewalls, deploy your first Node.js application, and follow production best practices. Diagram created with https://savnet.co What You'll Need Before starting, make sure you have: An Ubuntu 24.04 LTS server (minimum 2 GB RAM for testing) SSH access with configured keys A domain or subdomain (optional but recommended for HTTPS) Basic terminal and Docker knowledge Step 1: Prepare Your Ubuntu Server If you already have an Ubuntu 24.04 LTS server with SSH access, you can skip this step. If you need to create one, follow these recommendations: Choose a cloud or VPS provider that offers Ubuntu 24.04 LTS Select a plan with at least 2 GB of RAM for testing Configure SSH key access instead of password (more secure) Consider enabling backups and monitori