Troubleshooting¶

MQTT¶

Use a desktop MQTT app - MQTTX will let you subscribe to # and see everything on a broker, and MQTT Explorer automatically shows a tree structure of topics, and can run either as a desktop app, or as web app running on Docker. These will let you inspect messages, and also publish your own.

Docker¶

More detailed information on the Docker API and compatibility with Docker engine versions can be found at Docker’s own Docker Engine API reference.

updates2mqtt is designed to run on the same host as the containers, so only needs local Docker daemon access. All it needs for that is the volume mapping as below:

Example Docker Compose Snippet

volumes:
  - /var/run/docker.sock:/var/run/docker.sock

Where docker-compose projects are being automatically updated and restarted, one problem can be that earlier versions used a docker-compose command and newer ones use docker compose. There is a v1 and v2 option in the configuration to support this, defaulting to v2.