| 1234567891011121314151617181920212223242526 | version: '2'services:  nginx:    image: nginx    container_name: nginx    volumes:      - /etc/nginx/conf.d  dockergen:    image: jwilder/docker-gen    command: -notify-sighup nginx -watch /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf    volumes_from:      - nginx    volumes:      - /var/run/docker.sock:/tmp/docker.sock:ro      - ./nginx.tmpl:/etc/docker-gen/templates/nginx.tmpl  web:    image: web    container_name: whoami    expose:      - "80"    environment:      WEB_PORTS: 80      VIRTUAL_HOST: whoami.nginx.container.docker
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