unset DOCKER_HOST

docker build -t docker.alphabets.cn/hdfs:0.0.1 hdfs
docker build -t docker.alphabets.cn/hdfs-master:0.0.1 hdfs-master
docker build -t docker.alphabets.cn/hdfs-slave:0.0.1 hdfs-slave
docker build -t docker.alphabets.cn/hdfs-hbase:0.0.1 hdfs-hbase
docker build -t docker.alphabets.cn/zookeeper:0.0.1 zookeeper

export DOCKER_HOST=tcp://127.0.0.1:4000