docker network create proxy-net

services:proxy:container_name:proxyimage:nginxproxy/nginx-proxyports:      -80:80      -443:443volumes:      -/var/run/docker.sock:/tmp/docker.sock:roenvironment:      -TRUST_DOWNSTREAM_PROXY=false# true if there is another proxy in front of this onenetworks:       -proxy-net# proxy and all proxied servers have to be on the same networkproxied_server1:image:your_image:latestenvironment:      -VIRTUAL_HOST=your.domain.com      -VIRTUAL_PORT=3000# the same port as in exposeexpose:      -3000# port your app uses to communicatedepends_on:      -proxynetworks:      -proxy-netnetworks:proxy-net:name:proxy-netexternal:true