#!/bin/bash N=100 time for i in {1..$N}; do CID=$(docker run --name server-$i -d nginx) docker exec server-$i /bin/sh -c "echo I am number $i > /usr/share/nginx/html/index.html" done # Check every container once: time for i in {1..$N}; do IP=$(docker inspect --format '{{.NetworkSettings.IPAddress}}' server-$i) curl http://${IP}/ & done