EP MQTT Setup

Install Mosquitto

Run the following commands to install install mosquitto:

sudo apt install -y mosquitto mosquitto-clients

Make sure mosquitto service is enabled:

sudo systemctl enable mosquitto.service

Check of mosquitto is running:

ps -ef | grep mosquitto

Run mosquitto as a daemon:

mosquitto -d

Install Paho-Mqtt Python Library

Install paho-mqtt:

sudo pip3 install paho-mqtt

Set up mqtt_subscriber.py as a service

Get the mqtt_subscriber.py script from this repo and place it anywhere on your server.

Move the MQTT Subscriber service and run it:

sudo cp mqtt_subscriber.service /etc/systemd/system

Reload systemctl and turn it on:

sudo systemctl daemon-reload
sudo systemctl enable mqtt_subscriber.service
sudo service mqtt_subscriber start

To see if it's running:

service mqtt_subscriber/status

Set up authentication for your Mosquitto broker

Method 1: Create a password file manually:

nano password_file

Add your credentials:

username:password

Substitute username for your username and password for your password.

Encrypt the file:

sudo mosquitto_passwd -U password_file

Method 2: Create password file via CLI

Run command:

sudo mosquitto_passwd -c password_file username

Substitute username for your username and password for your password.

Mosquitto Configuration

Move the newly created password_file to its proper location:

sudo mv password_file /etc/mosquitto

Edit the configuration file:

cd /etc/mosquitto 
sudo nano mosquitto.conf

Add the two following lines at the end:

allow_anonymous false
password_file /etc/mosquitto/password_file

Also be sure to look at the mosquitto.conf file in this repo for a full example.

Restart mosquitto service:

sudo service mosquitto restart