services:
    squid:
        image: ubuntu/squid
        ports:
            - "3128:3128"
        volumes:
            - ./squid.conf:/etc/squid/squid.conf:ro
            - /opt/data/squid/passwd:/etc/squid/passwd:ro
        extra_hosts:
            - "host.docker.internal:host-gateway"
        restart: unless-stopped