---
title: "Discussion on \"Self-Hosting Like a Pro, Part 3: Namespace Isolation, Databases and Shipping a Real App on K3s\" | Hashnode"
description: "Discussion on \"Self-Hosting Like a Pro, Part 3: Namespace Isolation, Databases and Shipping a Real App on K3s\". In Part 1 we hardened a fresh Ubuntu VPS. In Part 2 we installed Docker, K3s and Traefik v3 with automatic HTTPS. The cluster was ready but empty. In this part we give it a real job: hosting multiple"
url: "https://hashnode.com/posts/self-hosting-like-a-pro-part-3-namespace-isolation-databases-and-shipping-a-real-app-on-k3s/6a603cdb35593d8de774e43e"
---

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Discussion

# [Self-Hosting Like a Pro, Part 3: Namespace Isolation, Databases and Shipping a Real App on K3s](https://blog-adeutou.hashnode.dev/self-hosting-like-a-pro-part-3-namespace-isolation-databases-and-shipping-a-real-app-on-k3s?utm_source=hashnode&utm_medium=feed)

In Part 1 we hardened a fresh Ubuntu VPS. In Part 2 we installed Docker, K3s and Traefik v3 with automatic HTTPS. The cluster was ready but empty. In this part we give it a real job: hosting multiple

Jul 22 · 7 min read · blog-adeutou.hashnode.dev  
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## Written by

[Albert Deutou](https://hashnode.com/@adeutou)

@adeutou · Goslar, Germany

  
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Sharing thoughts on Backend development, AI, DevOps, and Cloud infrastructure

I design resilient backend architectures and memorable digital experiences: from API to pipeline, from code to production.

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