mqtt-docker-controller 0.1.5

A comprehensive and handy MQTT and Docker broker management tool

MQTT Docker Controller

A Python-based tool for managing MQTT operations and Docker-based MQTT brokers. This tool provides a unified interface for both MQTT client operations (publish/subscribe) and Docker-based Mosquitto broker management.

Features

• 🐳 Docker-based MQTT broker management
  • Start/stop Mosquitto broker containers
  • Automatic configuration management
  • Container health monitoring
  • Automatic error detection and recovery
• 📨 MQTT client operations
  • Publish messages with configurable QoS and retain settings
  • Subscribe to topics with automatic reconnection
  • Support for multiple connection parameters
• 🛠️ Command-line interface
  • Simple, intuitive commands
  • Comprehensive help system
  • Error handling and logging

Prerequisites

• Python 3.8 or higher
• Docker installed and running
  • macOS: Docker Desktop
  • Linux: Docker Engine
  • Windows: Docker Desktop
• Network access for MQTT operations
• Available ports:
  • 1883 (MQTT)
  • 9001 (WebSocket)

Installation

# Install the package
pip install mqtt-docker-controller

Usage

Starting a Local MQTT Broker

# Start a new broker instance
mqtt-docker-controller start-broker

# Stop the running broker
mqtt-docker-controller stop-broker

Publishing Messages

# Basic publish
mqtt-docker-controller publish --broker localhost --topic test/topic --message "Hello World"

# Publish with QoS and retain
mqtt-docker-controller publish \
    --broker localhost \
    --topic test/topic \
    --message "Hello World" \
    --qos 1 \
    --retain

Subscribing to Topics

# Basic subscribe
mqtt-docker-controller subscribe --broker localhost --topic test/topic

# Subscribe with specific QoS
mqtt-docker-controller subscribe \
    --broker localhost \
    --topic test/topic \
    --qos 1

Error Handling and Troubleshooting

Docker-Related Issues

1. Docker Not Running

   ERROR: Docker daemon is not running
   Please start Docker with one of these commands:
     - macOS: open -a Docker
     - Linux: sudo systemctl start docker
     - Windows: Start Docker Desktop
   

2. Port Conflicts

   ERROR: Port 1883 or 9001 is already in use
   Please check if another broker or service is running on these ports
   

3. Image Issues

   • The tool will automatically attempt to pull the Mosquitto image if not found
   • Network issues during pull will be reported clearly

MQTT-Related Issues

1. Connection Problems

   • Broker unreachable
   • Authentication failures
   • Invalid topic format

2. Common Fixes

   • Ensure Docker is running
   • Check port availability
   • Verify network connectivity
   • Confirm broker address is correct

Configuration

Default Broker Settings

• MQTT Port: 1883
• WebSocket Port: 9001
• Default Configuration Location: ~/mqtt-docker-controller-test/mosquitto.conf

Client Settings

• Default QoS: 0
• Default Keep Alive: 60 seconds
• Auto-reconnect: Enabled

Development

Setting Up Development Environment

# Clone the repository
git clone https://github.com/DylanWall96/mqtt-docker-controller.git
cd mqtt-docker-controller

# Install in development mode with development dependencies
pip install -e ".[dev]"

# Run tests
pytest

# Check code style
flake8 mqtt_docker_controller
black mqtt_docker_controller

# Type checking
mypy mqtt_docker_controller

Project Structure

mqtt_docker_controller/
├── __init__.py         # Package initialisation
├── cli.py             # Command-line interface
├── broker.py          # Docker broker management
├── client.py          # MQTT client operations
├── config.py          # Configuration management
└── __main__.py        # Direct execution support

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Licence

This project is licensed under the MIT Licence - see the LICENCE file for details.