docker创建镜像的几个命令

docker create -it --name mongodb mongo/myubuntu1.4
docker start mongodb
docker exec -it mongodb bash
iptables -t nat -A POSTROUTING -s 10.126.253.2 -j SNAT --to 10.126.253.73
docker stop mongodb
docker commit mongodb base/mongodb_2.4.9
docker rm mongodb
docker save base/mongodb_2.4.9 > mongodb_2.4.9.tar