Mosquito MQTT update v3 broke my hassio

Installation Home Assistant OS
61

Try these steps:
Addon config:

{
  "logins": [
    {
      "username": "DVES_USER",
      "password": "DVES_PASS"
    }
  ],
  "anonymous": false,
  "customize": {
    "active": false,
    "folder": "mosquitto"
  },
  "certfile": "fullchain.pem",
  "keyfile": "privkey.pem"
}

Configure mqtt in the Configuration -> Integrations

Make sure all your mqtt devices have correct creds (DVES_USER/DVES_PASS in case of Tasmota)

Make sure you included discovery: and GOT RID of mqtt: in the main config

Restart the hassio

PS: if you need to reboot the whole machine, make sure your hass supervisor is updated to v139. In other case you will get the docker container boot loop. To fix the loop remove discovery.json in the config folder (via ssh or direct access to the os file system)

PS2: make sure you disabled autoupdate for ALL addons. To save some time in the future :slight_smile:

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