docker配置为使用IP为192.168.99.100的默认计算机
要获得入门帮助，请查看https://docs.docker.com
上的文档usitiongwm1:~ iongw$ docker-machine ls
NAME ACTIVE DRIVER STATE URL SWARM
default * virtualbox Running tcp://192.168.99.100:2376
usitiongwm1:~ iongw$ docker run hello world
Unable to find image 'hello:latest' locally
Pulling repository docker.io/library/hello
Error: image library/hello:latest not found
usitiongwm1:~ iongw$ docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
535020c3e8ad: Pulling fs layer
af340544ed62: Pulling fs layer
af340544ed62: Layer already being pulled by another client. Waiting.