docker-compose to run mitmproxy with web interface using docker volume

docker-compose.yml

version: '3.4'

services: 
    app:
        image: mitmproxy/mitmproxy
        ports: 
            - 8080:8080
            - 8081:8081
        volumes:
            - mitmproxy:/home/mitmproxy/.mitmproxy
        command: mitmweb --web-host 0.0.0.0



volumes:
    mitmproxy:
        external: true