| 1234567891011121314151617181920212223242526 | version: '2'networks:  net1: {}  net2: {}  net3: {}services:  nginx-proxy:    image: nginxproxy/nginx-proxy:test    volumes:      - /var/run/docker.sock:/tmp/docker.sock:ro    networks:      - net1  web:    image: web    expose:      - "81"    environment:      WEB_PORTS: 81      VIRTUAL_HOST: web1.nginx-proxy.example    networks:      - net1      - net2      - net3
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