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In the docker folder, create the following subfolder:

mkdir mqtt/config
mkdir mqtt/data
mkdir mqtt/log

Create config file:

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

Create yml file:

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

Run the service

cd /opt/docker/mqtt
docker compose up -d

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