Meetling Livekit Recording Uploader

This containerized utility monitors a directory for new .mp4 files, splits them into chunks, and uploads each chunk to a specified endpoint. It is intended for use with the Meetling Livekit recording system.

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📦 Features

• 📁 Watches the /out directory for new .mp4 files
• ✂️ Splits files into configurable chunk sizes
• 📤 Uploads chunks via HTTP with bearer token authorization
• 🐳 Lightweight Alpine-based Docker image

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⚙️ Environment Variables

Variable	Default	Description
CHUNK_SIZE	1048576 (1 MiB)	Size of each chunk in bytes
UPLOAD_URL	http://localhost:8000/recording/upload	Upload endpoint URL
AUTH_TOKEN	verySecretToken	Bearer token for authentication

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🚀 Usage

1. Build the Docker image

docker build -t meetling-uploader --build-arg VERSION=1.0.0 .

2. Run the container

docker run -v /your/output/directory:/out meetling-uploader

Replace /your/output/directory with the directory containing your .mp4 recordings.

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🔄 Upload Process

Once a .mp4 file is completely written to /out, the script:

1. Verifies the file exists.
2. Calculates file size.
3. Splits the file into chunks based on CHUNK_SIZE.
4. Uploads each chunk using curl.

Each upload includes the following multipart form fields:

• recording_id: Filename without .mp4
• chunk_index: Index of the chunk (starting from 0)
• total_chunks: Total number of chunks
• file: The actual chunk

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🐳 Dockerfile Overview

The image uses alpine:3.20 and installs:

• inotify-tools (for file system event watching)
• curl (for HTTP requests)
• coreutils (for stat and dd utilities)

The script is located at /inotify.sh and is executed when the container starts.
It runs as the non-privileged user nobody for security.

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📝 License

MIT License

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👨‍💻 Maintainers

H2 invent GmbH
📧 support@h2-invent.com
🌐 https://meetling.de

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Note: Ensure your backend server supports chunked uploads and correctly assembles the file.