wol-service 0.1.0rc1

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Wakeup on LAN Service

Project Overview

This is a simple Wakeup on LAN (WoL) service built using FastAPI. It provides an HTTP API and a web interface to wake up network devices over the local area network.

Requirements

You can run this application using Python directly or via Docker.

• Option A: Python 3.10+ (managed via uv)
• Option B: Docker Engine
• Option C: Docker Compose

Configuration

The application is configured via environment variables. These apply regardless of the running method chosen.

Environment Variables

Variable	Description	Default
SECRET_KEY	Required. Used to sign JWT cookies. The app will not start without this.	None
ADMIN_USERNAME	Username for the initial admin account. If empty, authentication is disabled.	None
ADMIN_PASSWORD	Password for the initial admin account. If empty, authentication is disabled.	None
USERS_PATH	Path to store hashed user records.	users.json
WOL_HOSTS_PATH	Path to store saved WoL hosts.	hosts.json
COOKIE_SECURE	Set to true if running on HTTPS. If false, cookies are sent over HTTP.	false
COOKIE_SAMESITE	Cookie SameSite policy. Can be lax, strict, or none.	lax
ACCESS_TOKEN_EXPIRE_MINUTES	How long a login session (JWT token) is valid in minutes.	30
LOG_LEVEL	Logging level for the application.	INFO
TOKEN_ISSUER	JWT token issuer string.	wol-service
TOKEN_AUDIENCE	JWT token audience string.	wol-service-users

Authentication Modes

• Authenticated (Recommended): Set ADMIN_USERNAME and ADMIN_PASSWORD.
  • Credentials are hashed and stored in USERS_PATH on the first boot.
  • Environment variables for credentials are cleared from memory immediately after startup.
  • CSRF protection is enabled.
• Unauthenticated (Insecure): Leave ADMIN_USERNAME and ADMIN_PASSWORD unset (or set to empty strings).
  • Authentication and CSRF protections are disabled.
  • All endpoints are open. Only use this on a strictly trusted LAN.

Usage Method 1: Python (Local)

Use this method to run the application directly on the host machine.

• Install dependencies: Ensure you have uv installed (pip install uv), then install project dependencies:

   uv install -e .
dependencies:

• Run the application: Replace the values below as needed.

   SECRET_KEY=change-me-to-something-secure \
ADMIN_USERNAME=admin \
ADMIN_PASSWORD=adminpass \
COOKIE_SECURE=false \
uv run uvicorn wol_service.app:app --reload --host 0.0.0.0 --port 25644

• Access: Open http://localhost:25644. Usage Method 2: Docker (Standalone)
• Build the image:

   docker build -t wol-service .

• Run the container: This command mounts a local ./data directory to persist users and hosts.

mkdir -p data

docker run -d -p 25644:25644 --name wol-service-container \
  -e SECRET_KEY=change-me-to-something-secure \
  -e ADMIN_USERNAME=admin \
  -e ADMIN_PASSWORD=adminpass \
  -e COOKIE_SECURE=false \
  -e WOL_HOSTS_PATH=/data/hosts.json \
  -e USERS_PATH=/data/users.json \
  -v "$(pwd)/data:/data" \
  wol-service

• Access: Open http://localhost:25644. Usage Method 3: Docker Compose If you prefer using Compose, you can use the provided helper script or run standard compose commands.
• Start the service:

  Using the helper script (builds and mounts ./data automatically)

./scripts/docker_compose_up.sh

OR using standard docker compose (ensure your compose file maps volumes correctly)

docker compose up --build -d

Development & Testing This project uses pytest. To run the test suite:

uv run --no-sync pytest

Note: A helper script is also available at scripts/run_tests.sh.

Security Notes

• Production Deployment: Always use a strong, random SECRET_KEY.
• Persistence: Ensure users.json and hosts.json are stored on a persistent volume (as shown in the Docker example), or data will be lost on container restart.
• HTTPS: If running behind a reverse proxy with HTTPS, remove COOKIE_SECURE=false (let it default to true).