I see this in the docker-compose.yml file:

 fileserver:
    networks:
      - backend
      - frontend
    command:
    - fileserver
    container_name: clearml-fileserver
    image: allegroai/clearml:1.12.1-397
    environment:
      CLEARML__fileserver__delete__allow_batch: "true"
    restart: unless-stopped
    volumes:
    - /opt/clearml/logs:/var/log/clearml
    - /opt/clearml/data/fileserver:/mnt/fileserver
    - /opt/clearml/config:/opt/clearml/config
    ports:
    - "8081:8081"