Files
mc-webui/scripts/watchdog
MarekWo 02b75c167b fix(watchdog): add ESP32 hardware reset via DTR/RTS
Since a standard USB bus reset often isn't enough to revive a hung ESP32, this adds a serial DTR/RTS toggle sequence (used by esptool) to physically reset the chip before trying a USB bus reset.
2026-03-03 20:20:52 +00:00
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mc-webui Container Watchdog

The watchdog service is a utility designed to run on the host machine running the Docker containers for the mc-webui project. Its primary purpose is to continuously monitor the health of the application's containers, specifically the mc-webui container, which handles the physical connection to the LoRa device (like Heltec V3 or V4).

Key Capabilities

  • Automated Restarts: If a container becomes unhealthy, stops, or reports device connection issues in its logs, the watchdog automatically restarts it to restore service without human intervention.
  • Hardware USB Bus Reset: If the mc-webui container fails to recover after three successive restarts (e.g., due to a hardware freeze on the LoRa device itself), the watchdog will intelligently simulate a physical disconnection and reconnection of the device via a low-level USB bus reset, completely resolving hardware lockups.

Installation / Update

You can easily install or update the watchdog by running the provided installer script with root privileges:

cd ~/mc-webui/scripts/watchdog
sudo ./install.sh

Detailed Documentation

For full details on configuration, logs, troubleshooting, and more advanced features, please refer to the main Container Watchdog Documentation located in the docs folder.