docker search -s 1 fedora 搜索镜像
docker pull fedora 使用docker pull命令将image下载到本地RHEL Atomic Host中
docker load -i fedora-21-20151217.tar.gz docker load将本地image
docker save registry.access.redhat.com/rhel7:latest>/tmp/rhel7.tar
docker load -i rhel7.tar
docker images
docker run -it registry.access.redhat.com/rhel8:latest /bin/bash
docker ps /brctl show
docker kill 3dfc
ps -aq /docker rm 3dfc
dock run -it ID /bin/bash