In this video, you'll learn how you can deploy a JAR-based backend (Spring Boot, Ktor, etc.) to a self-hosted VPS instance from Hetzner for just 3$/month. 
I'll walk you through creating the VPS instance, connecting to it via SSH, securing it via a custom user account, setting up and running a systemd service, setting up Nginx as a reverse-proxy with our own SSL certificate and custom domain and lastly how we can automate this deployment via a GitHub Actions pipeline when pushing to the master branch.

Get 20€ worth of Hetzner credits to create your VPS instance:
https://hetzner.cloud/?ref=j8CRwH4G9Fmr

Get the systemd notes.service config file:
https://github.com/philipplackner/SpringBootCrashCourse/blob/master/deployment/notes.service

Get the Nginx config file for sites-available:
https://github.com/philipplackner/SpringBootCrashCourse/blob/master/deployment/nginx-notes-config

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Regular programming advice on my Instagram page: https://www.instagram.com/_philipplackner_/

Join my Discord server:
https://discord.gg/cwQbmUstEu

00:00 - Introduction
3:07 - VPS Hosting
7:36 - Setting up the VPS
19:14 - Copying the SSH key for existing servers
23:52 - Creating an admin user
35:55 - Creating an SSH alias
38:58 - Installing Java
40:53 - Pushing the JAR to our server
46:06 - Systemd service setup
58:42 - SSL & Custom domain setup
1:08:08 - GitHub Actions automation
1:18:26 - Permitting service relaunch without sudo
1:20:11 - Creating a GitHub repository secret
1:21:40 - Testing everything
1:27:35 - Configuring a firewall

Philipp Lackner

Learn how to deploy a Spring Boot backend using a VPS server, configure remote access with SSH keys, and automate the deployment process with GitHub Actions. The guide covers setting up the server, securing it, and running the backend application on a remote machine. It also explains the advantages of using VPS and discusses the setup of environment variables and proper server management techniques.

Full Guide to Auto-Deploy a Spring Boot Backend (VPS Server, GitHub Actions, HTTPS, Security)