📘 Tutorial run-comfyui-ltx

• This tutorial reflects my own experience on RunPod.
• Always consult the excellent official runpod documentation.

🚀 Starting a Pod

🧩 Choose a Template

Example: 👉 LTX-2 bf16

Steps:

1. Choose a GPU.
2. Edit template settings if needed.
3. Enable volume encryption if desired.
4. Click Deploy On-Demand.

📜 Viewing System Logs

• Go to Logs.
• Loading takes 9–15 minutes depending on region.
• If the image doesn’t begin downloading after 1 minute, delete and redeploy in another region.

Ends with (example):

Digest: sha256:2b56bdd14df7af0d8e7f9bd7978bg9d62d792359f5ea65redd65dcd5816752fc
Status: Image is up to date for ls250824/run-comfyui-wan2:11012026

🐳 Viewing Container Logs

ℹ️ Pod run-comfyui-wan started
ℹ️ Wait until the message 🎉 Provisioning done, ready to create AI content 🎉

When you see:

→ Your pod is ready.

🔌 Connecting to Your Pod

Docs

⚠️ Not ready – Make sure your service is running!

Try to Connect with the pod-id and the port number to the proxy. You can find the url’s at the end of the log file.

• ComfyUI: https:<pod-id>-8188.proxy.runpod.net/
• Lora Manager: https:<pod-id>-8188.proxy.runpod.net/loras
• Code-Server: https:<pod-id>-9000.proxy.runpod.net/

🎨 ComfyUI

1. Select tab Connect → ComfyUI
2. Set username/password
3. Load a workflow
4. Press Run
5. Monitor GPU/RAM via Telemetry

⚠️ ComfyUI's screen remains blank

• Wait one minute and try again.
• Restart your browser and/or clear cache.
• Try with another browser (brave, chrome, edge).

💻 Web Terminal

• Select tab Connect
• Enable web terminal
• Provides terminal access directly in your browser.

🧑‍💻 Code-Server Login

No "PASSWORD" set

• Copy the password displayed at the end of the container log file of the Runpod console or open the web terminal and enter.

cat /root/.config/code-server/config.yaml

Copy the password → log in via the Code-Server service on tab Connect.

Information in pod available

⚠️ Code-Server's screen remains blank

• Wait one minute and try again.
• Restart your browser and/or clear cache.
• Try another browser (brave, chrome, edge).

"PASSWORD" set as env in Runpod template

Log in via the Code-Server service on tab Connect.

🔐 Secrets

Docs

Useful secrets:

• PASSWORD
• CIVITAI_TOKEN
• HF_TOKEN

📥 Downloading Models and LoRAs

From web terminal or Code-Server.

🧩 CivitAI

If no "CIVITAI_TOKEN" was set, create or use a free token from the civitai website.

export CIVITAI_TOKEN=“xxxxx”
civitai “<download-link-on-civitai>” /workspace/ComfyUI/models/<loras, etc>

Download for example CivitAI

civitai "https://civitai.com/api/download/models/2377549?type=Model&format=SafeTensor" /workspace/ComfyUI/models/loras/
civitai "https://civitai.com/api/download/models/2377566?type=Model&format=SafeTensor" /workspace/ComfyUI/models/loras/

Refresh ComfyUI pressing key r.

🧩 ComfyUI-Lora-Manager

• Github

Launch web interface

• Topbar ComfyUI.
• Url displayed at end of container log file.

https:<pod-id>-8188.proxy.runpod.net/loras

Civitai token (needed for download)

• Go to preferences and add your token if not set before starting the pod (CIVITAI_TOKEN).

Topbar

• Press Refresh and Fetch to download images for lora's available in the pod.
• Press Download and add the civitai's URL (not download link).

Integration basic

• Add node Lora-Loader (LoraManager) to your ComfyUI workflow.
• Press the Paper Airplane in the Lora-Manager web interface.
• Your lora is available in your workflow.
• Add your model for LTX to both lora loaders and adjust strength.

☁️ HuggingFace

"HF_TOKEN" is mandatory but needed for gated sites or upload.

Login:

hf auth login --token xxxxx

or set token:

export HF_TOKEN="xxxxx"

Download example from Huggingface.

hf download ricecake/wan21NSFWClipVisionH_v10 wan21NSFWClipVisionH_v10.safetensors --local-dir /workspace/ComfyUI/models/clip_vision

Refresh ComfyUI pressing key r.

🧩 ComfyUI-manager

• Topbar or menu

🧩 Restart pod

• ⚠️ To restart ComfyUI restart the pod from runpod’s console (no information loss).

🧩 Stop and restart a pod

• No information loss as ComfyUI is copied to the /workspace volume.
• Use this option to pause your pod.

⚠️ Be aware that it is possible that no GPU is available when you restart the pod.

• Before stopping the pod copy your creations to cloud/local.
• You can still access to pod from the console (0.5 vCPU and little memory).

🔄 Uploading & Downloading Files

☁️ Cloud Sync

• Docs

Free dropbox

• Reliable and fast upload and download for large files.
• Go to Dropbox developers
• Create an app to connect with runpod.io.

📦 runpodctl

• Docs

Speed

• Fine for downloading files from your pod.
• Problematic for uploading large files to your pod with slow connections (timeouts).
• Perfect for transfering files between pods.

Installation

• You need to install a client on your local computer.
• You do not need an api key to upload/download to/from your pod.

🔧 Advanced Features

🔐 SSH / SCP / SFTP

Docs.

Key generation

• Linux has ssh-keygen already installed to generate keys.
• Windows install Git to get ssh-keygen.
• Put your public key on runpod.io keep your private key on your local computer.

Apps.

• Use Shellfish, Putty, Tabby terminal or shell/bash.
• File transfer Shellfish or WinSCP.

🔑 RunPod API

Useful when the web console is out (examples are outages from AWS and Cloudflare).

Using runpod.io API

• Docs.
• Install with "sudo apt install curl" on Ubuntu.

curl --request GET \
  --url https://rest.runpod.io/v1/pods \
  --header 'Authorization: Bearer <api-key>'

curl --request POST \
  --url https://rest.runpod.io/v1/pods/{podId}/stop \
  --header 'Authorization: Bearer <api-key>'

curl --request DELETE \
  --url https://rest.runpod.io/v1/pods/{podId} \
  --header 'Authorization: Bearer <api-key>'

Using runpodctl to start/stop your pod with your api key.

• Docs.
• Install client on local computer.
• Use Shell/PowerShell or Bash.

runpodctl config --apiKey <YOUR_API_KEY>

runpodctl get pod --allfields

runpodctl stop pod <pod_id>

runpodctl remove pod <pod_id>