Installing an MQTT Broker with Synology (Mosquitto on Docker)
Summary
An MQTT Broker allows software to communicate through messaging. One of the popular broker apps is Eclipse Mosquitto. For Home Automation you will find a lot of the applications interact through an MQTT so if you are going to deep dive into HA eventuall you are going to need an MQTT broker in your network.
Using Synology
Synology builds the ultimate “set and forget” style NAS systems. One of the great things about later generation DSMs is running Docker on the Synology directly. In this example we will use Docker on the Synology to run Mosquitto.
Installing Docker
On the Synology NAS use the package manager to install Docker
Find and Download the Image
In the Docker App on the Synology DSM click on Registry
Next, search for mosquitto and look for eclipse-mosquitto
Select to Download the image and select the latest tag and hit Select
After it is downloaded click Launch
In the Create Container information screen which appears when you click launch you will accept the defaults for the first screen and hit Next
In the second screen UNCHECK the option to Run this container after the wizard is finished (becuase we are going to change the port) and then hit Apply
Next, click on the Container tab on the left hand side and you’ll see the eclipse-mosquitto1 container now.
Click, Edit and edit the settings. Change the incoming port from Auto to the default MQTT port of 1883
Next, hit the start switch so the container starts up.
Finally, the MQTT broker should be running which you can test using the mqtt client.
