47. Docker Embedded DNS
docker network create mynetwork
docker container run -d --name mynginx --network mynetwork --network-alias mynetworkalias nginx
docker container run -d --name mybusybox --network mynetwork radial/busyboxplus:curl sleep 1000
docker exec -it mybusybox /bin/sh
curl mynginx:80
curl mynetworkalias:80
