Update docker-compose.yml

docker-compose.yml

@@ -10,7 +10,10 @@ services:
       - '8883:8883'
     environment:
       - TZ= Europe/Lisbon
-      - MOSQUITTO_CONFIG_CONTENT=${MOSQUITTO_CONFIG_CONTENT}
+      - |
+        MOSQUITTO_CONFIG_CONTENT=
+        listener ${LISTENER_PORT}
+        allow_anonymous ${ALLOW_ANONYMOUS}
     volumes:
       - data:/mosquitto/data
     restart: unless-stopped