In the docker folder, create the following subfolder:
<code>
mkdir mqtt/config
mkdir mqtt/data
mkdir mqtt/log
</code>

Create config file:
<code>
nano /opt/docker/mqtt/config/mosquitto.conf

	# Plain MQTT listener
	listener 1883
	allow_anonymous true
	# Persistence settings
	persistence true
	persistence_location /mqtt/data/
	# Logging
	log_dest file /mqtt/log/mosquitto.log

</code>

Create yml file:
<code>
nano /opt/docker/mqtt/docker-compose.yml

version: '3.8'

services:
  mosquitto:
    image: eclipse-mosquitto:latest
    container_name: mosquitto
    restart: unless-stopped
    ports:
      - "1883:1883"
      - "9001:9001"
    volumes:
      - ./config:/mosquitto/config
      - ./data:/mosquitto/data
      - ./log:/mosquitto/log
</code>

Run the service
<code>
cd /opt/docker/mqtt
docker compose up -d
</code>
</code>