Added sample docker compose config moquitto

docker/mqtt/config/mosquitto.conf

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+listener 1883
+persistence true
+persistence_location /mosquitto/data/
+log_dest file /mosquitto/log/mosquitto.log
+
+## Authentication ##
+# By default, Mosquitto >=2.0 allows only authenticated connections. Change to true to enable anonymous connections.
+allow_anonymous true
+# password_file /mosquitto/config/password.txt

docker/mqtt/docker-compose.yml

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+version: '3.7'
+services:
+  mosquitto:
+    image: eclipse-mosquitto
+    container_name: mosquitto
+    volumes:
+      - type: volume
+        source: mosquitto_config
+        target: /mosquitto/config
+      - type: volume
+        source: mosquitto_data
+        target: /mosquitto/data
+      - type: volume
+        source: mosquitto_log
+        target: /mosquitto/log
+    ports:
+      - target: 1883
+        published: 1883
+        protocol: tcp
+        mode: host
+      - target: 9001
+        published: 9001
+        protocol: tcp
+        mode: host
+
+volumes:
+  mosquitto_config:
+    driver: local # Define the driver and options under the volume name
+    driver_opts:
+      type: none
+      device: ./config
+      o: bind
+  mosquitto_data:
+    driver: local # Define the driver and options under the volume name
+    driver_opts:
+      type: none
+      device: ./data
+      o: bind
+  mosquitto_log:
+    driver: local # Define the driver and options under the volume name
+    driver_opts:
+      type: none
+      device: ./log
+      o: bind