1，登录阿里云账号-容器镜像服务-创建镜像仓库
2，登录切记要写完整的目录仓库命不要错不然要报错
docker login --username=阿里云名字 registry.cn-hangzhou.aliyuncs.com/镜像仓库名（test_jiangxin）
密码
3,例
docker tag daocloud.io/library/centos registry.cn-hangzhou.aliyuncs.com/test_jiangxin/centos:centos7.4
docker push registry.cn-hangzhou.aliyuncs.com/test_jiangxin/centos:centos7.4
docker pull registry.cn-hangzhou.aliyuncs.com/test_jiangxin/centos:centos7.4