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查看哪台机器处于“活动状态”(如果DOCKER_HOST
环境变量指向该机器,则认为机器处于活动状态)。
$ docker-machine ls NAME ACTIVE DRIVER STATE URL dev - virtualbox Running tcp://192.168.99.103:2376 staging * digitalocean Running tcp://203.0.113.81:2376 $ echo $DOCKER_HOST tcp://203.0.113.81:2376 $ docker-machine active staging