SensorSync MQTT Broker

This repository contains an MQTT broker for an IoT fleet management software. The MQTT broker facilitates communication between IoT devices and the fleet management system.

Setup

1. Create a passwd file within the config folder. This file will store the authentication credentials for accessing the MQTT broker. Formatted like this: user:password

2. Build the mqtt-broker Docker image using the provided Dockerfile:

   docker build -t mqtt-broker .

3. Start the services using Docker Compose:

   docker-compose up --build

Testing

To publish messages to the MQTT broker, you can use the following command:

docker-compose run mqtt-pub sh -c "mosquitto_pub -h mqtt-broker -t test -m 'Hello World' -u admin -P password"

Changing Password

To change the authentication password:

docker-compose exec mqtt-broker mosquitto_passwd -b /mosquitto/config/passwd admin NEWPASSWORD

After a password change, the MQTT broker needs to be restarted.

docker-compose restart mqtt-broker

Now run the pub/sub services with the new password

Subscribe

docker-compose run mqtt-sub sh -c "mosquitto_sub -h mqtt-broker -t test -u admin -P CHANGED_PASSWORD"

Publish

docker-compose run mqtt-pub sh -c "mosquitto_pub -h mqtt-broker -t test -m 'Hello World' -u admin -P CHANGED_PASSWORD"

Note

Make sure to replace NEWPASSWORD and CHANGED_PASSWORD with your desired passwords when changing or using the authentication credentials.