1，登錄阿里雲賬號-容器鏡像服務-創建鏡像倉庫
2，登錄切記要寫完整的目錄倉庫命不要錯不然要報錯
docker login --username=阿里雲名字 registry.cn-hangzhou.aliyuncs.com/鏡像倉庫名（test_jiangxin）
密碼
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