To start this post I want to say that I have searched the forum and found loads of posts. I’ve also done a lot of Googling. I can’t find the answer to my question(s) and worryingly the posts I have found that come close either don’t have an answer or finish with the OP saying words to the effect of “I couldn’t get it to work”.
I have built a Mosquitto MQTT server on a Digital Ocean droplet. The SSL is provided by a Let’s Encrypt certificate. That is, it’s not self signed. My reason for this is long and involved but it involves data collection from sensors outside my home network.
To this server I have successfully connected
- OwnTracks on my phone
- ESP32 clients located in a field
- A RPi on my home network running Zigbee2MQTT
And some other bits. Point is, I have
mosquitto_sub -h localhost -t '#'
running on the server and I can see a steady stream of these devices connecting and publishing without a problem.
But I can’t get HA to connect to this server. If I try and do it through the integration I get “Connection failed” and
[paho.mqtt.client] failed to receive on socket: [Errno 104] Connection reset by peer
In the log. If I go back to basics and configure it in the YAML, the log fills up with
[homeassistant.components.mqtt] The 'broker' option near /config/configuration.yaml:13 is deprecated, please remove it from your configuration
And it doesn’t connect. I remember in the days when we had to do everything with YAML you could specify keys like certificate: auto or specify paths to certificates but any of those options just cause the “deprecated” warning above and, since I’m using a LE certificate should theoretically not be needed.
Is there something else I need to do to get HA to connect to MQTT with SSL? This is Home Assistant OS 2022.5.4 by the way.
Thanks
Steve