docker run   -v /var/www:/var/www -d --name nginx --network host nginx /bin/sh -c "while true; do sleep 3000; done"

docker cp  12312312312:/etc/nginx:/etc/nginx  

docker stop 12312312312

docker rm 12312312312

docker run -v /etc/nginx:/etc/nginx  -v /var/www:/var/www -d --name nginx --network host nginx /bin/sh -c "while true; do sleep 3000; done"