问Docker compose -限制互联网访问，仅允许通过代理进行出口

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# Base docker-compose, which is extended by more specific docker-compose files
version: "3.5"
services:
  appname-nginx:
    image: companyimage/nginx
    container_name: appname-nginx
    depends_on:
      - appname-web
    ports:
      - "127.0.0.1:443:443"
      - "127.0.0.1:80:80"
    networks:
      appname-network:
        aliases:
          - local.appname.com
      appname-external-network:
  appname-web:
    image: companyimage/web
    container_name: appname-web
    networks:
      - appname-network
  appname-outbound-proxy-squid:
    image: companyimage/squid
    container_name: appname-outbound-proxy-squid
    networks:
      - appname-external-network
      - appname-network
networks:
  appname-network:
    name: appname-network
    internal: true
  appname-external-network:
    name: appname-external-network