How To Prune n8n & Docker Images on Hostinger VPS

Description

In this tutorial, you will learn how to prune dangling Docker images that pile up on your Hostinger VPS after running updates. If you update n8n, Ollama, Traefik, or any other Docker containers, the old image versions stay behind taking up disk space. Time to clean them up.

🧠 What You Will Learn

• What are dangling Docker images?
• How to check for reclaimable space on your VPS
• How to list running containers and image tags
• What is untagged?
• Prune & clean up in one command
• How to update n8n and friends
• How To Run Final Check for Free Space

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🔗 Links

🌐 Hostinger VPS (Affiliate Link):
https://www.hostg.xyz/SHIDN

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⏱️ Timestamps:

00:00 Intro: About The Tutorial
00:32 Tue Problem: Dangling Images
00:59 Docker Compose Image Tag
01:50 The Dangling n8n Story
02:35 Sign In To VPS & Launch Terminal
03:00 Docker Size Check (Before)
05:26 Docker List
06:33 Update n8n
07:27 Check for Reclaimable Space

💻 Commands Used

Check Docker disk usage:
docker system df

Verbose disk usage breakdown:
docker system df -v

List running containers and image tags:
docker ps

List dangling (untagged) Docker images:
docker images -f dangling=true

Update an app in Docker (run from inside the app’s directory):
docker compose pull
docker compose stop
docker compose up -d
docker image prune -f

Update with no downtime (skip the stop):
docker compose pull
docker compose up -d

Prune all dangling Docker images:
docker image prune -f

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