Uploaded May 2026 | Updated September 2026, 2 weeks ago
How To Prune n8n & Docker Images on Hostinger VPS
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
💻 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
🔗 Links
🌐 Hostinger VPS (Affiliate Link):
https://www.hostg.xyz/SHIDN
⏱️ 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
——————⭐ Resources ⭐———————
➜ Gear I Use: mikemurphy.co/resources
➜ Terrapin Textures: terrapintextures.com
➜ Amazon Influencer Store: amazon.com/shop/mikemurphyco
➜ Get Adobe Creative Cloud: mikemurphy.co/adobe
➜ 1Password: 1password.partnerlinks.io/mikemurphy
➜ BeeHiiv Newsletters: https://www.beehiiv.com?via=MikeMurphy1
➜ ElevenLabs: try.elevenlabs.io/kuhb3vjoi7gw
➜ WisprFlow: ref.wisprflow.ai/mike-murphy
——————⭐ Follow Me ⭐———————
➜ Website: mikemurphy.co
➜ YouTube: mikemurphy.co/youtube
➜ X: http://x.com/mikeunplugged
➜ Instagram: instagram.com/mikeunplugged
➜ Podcast: mikemurphy.co/mmu
———————
⚖️ Amazon Associates Disclosure
Mike Murphy is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com
———————
#n8n #docker #hostinger #vps #dockerprune #selfhosted #ollama #traefik #dockercompose #devops #homelab #terminal #cli #aihandyman
How To Prune n8n & Docker Images on Hostinger VPS
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
💻 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
🔗 Links
🌐 Hostinger VPS (Affiliate Link):
https://www.hostg.xyz/SHIDN
⏱️ 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
——————⭐ Resources ⭐———————
➜ Gear I Use: mikemurphy.co/resources
➜ Terrapin Textures: terrapintextures.com
➜ Amazon Influencer Store: amazon.com/shop/mikemurphyco
➜ Get Adobe Creative Cloud: mikemurphy.co/adobe
➜ 1Password: 1password.partnerlinks.io/mikemurphy
➜ BeeHiiv Newsletters: https://www.beehiiv.com?via=MikeMurphy1
➜ ElevenLabs: try.elevenlabs.io/kuhb3vjoi7gw
➜ WisprFlow: ref.wisprflow.ai/mike-murphy
——————⭐ Follow Me ⭐———————
➜ Website: mikemurphy.co
➜ YouTube: mikemurphy.co/youtube
➜ X: http://x.com/mikeunplugged
➜ Instagram: instagram.com/mikeunplugged
➜ Podcast: mikemurphy.co/mmu
———————
⚖️ Amazon Associates Disclosure
Mike Murphy is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com
———————
#n8n #docker #hostinger #vps #dockerprune #selfhosted #ollama #traefik #dockercompose #devops #homelab #terminal #cli #aihandyman










![Beginner’s Guide: How to Test OpenAI API Keys in Postman
You know how to generate OpenAI API Keys, but how exactly do you use them?
Description:In this tutorial, I will show you step-by-step how to use Postman to test your OpenAI API keys and make your first API Requests.
What you’ll learn:
* How to set up Postman
* Where to find your OpenAI API key
* How to find API Address
* How to better understand API Documentation
* How to test and send requests to OpenAI’s AP
Postman API Platform:
https://postman.com
OpenAI API Documentation:https://platform.openai.com/docs/api-reference/chat/create
How To Get OpenAI API Keys (Tutorial):
https://youtu.be/Lj43aSwNpog
—————The API Request Recipe———————
Part 1: The Address
https://api.openai.com/v1/chat/completions
Part 2: Authorization:
Key: Authorization
Value: Bearer YOUR_API_KEY
The Message (Body):{
model: gpt-3.5-turbo,
messages: [
{
role: user,
content: Write a 3-sentence story about a lighthouse keeper who finds a message from a sea creature.
}
]
}
————————————
✅ Chapters:
00:00 Intro: About The Tutorial
00:12 What You Will Learn
01:01 Requirements: What You Need
01:40 Set Up Free Postman Account
02:03 Create Postman Workspace
02:24 Workspace Description
02:48 3-Part Recipe (API Requests)
03:17 Confusing API Terminology
03:43 GET Requests
04:04 POST Requests
04:24 Part 1: The Address (URL)
04:40 Open AI API Docs
05:25 Create Chat Completion URL
05:53 Base URL + Endpoint
06:23 Part 2: Authorization
07:19 Part 3: Message (Body)
07:34 Request Body Requirements
08:17 Message: Role & Content
08:45 Postman: New API Request
09:18 Add OpenAI API Key
09:41 Part 3: The Message
10:17 Send API Request!
10:37 Status Code: 200 OK
11:15 Review Response
12:11 Lighthouse Keeper Story Response
——————
🪜How To Use Postman for OpenAI API Requests:
1. Visit Postman.com and create a Free Account
2. Click ‘New Workspace’ and enter name for new Workspace
3. Add Description & Notes
4. Gather API Request Address (URL)
5. Gather your OpenAI API (openai.com)
6. Go to Postman.com
7. Click (+) to create new API Request
8. Paste OpenAI Secret (API) Key
9. Change ‘GET’ to ‘POST’
10. Go to ‘Authorization’
11. Click drop-down menu for Auth Type
12. Select ‘OpenAI Bearer Token’
13. Go to ‘Body’
14. Select ‘RAW’
15. Select ‘JSON’
16. Paste in Body Snippet of code for message
17. Click ’SEND’ to send API Request
18. Look for 200 OK Status Code to determine success or not
19. Review Response
20. Save & Create New Collection
——————Resources———————
➜Gear I Use: https://mikemurphy.co/resources➜Adobe After Effects: https://mikemurphy.co/adobe
➜Terrapin Textures: https://terrapintextures.com
➜ Adobe Audition Course (Domestika): https://mikemurphy.co/domestika
➜Amazon Influencer Store: https://www.amazon.com/shop/mikemurphyco
➜See All My Gear: https://www.mikemurphy.co/podgear
➜ Get Adobe Creative Cloud: https://mikemurphy.co/adobe
➜ Screenflow: https://mikemurphy.co/screenflow
➜ Website: https://mikemurphy.co
➜ Podcast: https://mikemurphy.co/mmu
➜ Instagram: http://instagram.com/mikeunplugged
➜ X: http://x.com/mikeunplugged
➜ YouTube: https://mikemurphy.co/youtube
Amazon Associates Disclosure:Mike Murphy is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com Beginner’s Guide: How to Test OpenAI API Keys in Postman](https://i.ytimg.com/vi/rn6alwafU5Q/mqdefault.jpg)